Relevant bibliographies by topics / Tools for stud welding

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Tools for stud welding'

Author: Grafiati
Published: 28 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Tools for stud welding"

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Behrens, B. A., D. Gruß, and A. Jenicek. "Stud welding within sheet metal working tools." Production Engineering 5, no. 3 (April 1, 2011): 283–92. http://dx.doi.org/10.1007/s11740-011-0304-3.

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Lacki, Piotr, Wojciech Więckowski, Grzegorz Luty, Paweł Wieczorek, and Maciej Motyka. "Evaluation of Usefulness of AlCrN Coatings for Increased Life of Tools Used in Friction Stir Welding (FSW) of Sheet Aluminum Alloy." Materials 13, no. 18 (September 16, 2020): 4124. http://dx.doi.org/10.3390/ma13184124.

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The study presents the results of examinations of wear in tools made of 1.2344 steel without and with an anti-wear coating in the process of welding overlap joints of sheet metal made of 7075-T6 aluminum alloy using friction stir welding (FSW) technology. A commercial anti-wear AlCrN coating (Balinit® Alcrona Pro by Oerlikon Balzers Coating Poland Sp. z o.o., Polkowice, Poland) was examined, applied using physical vapor deposition (PVD) and used to improve tool life in metalworking processes. Wear tests for the tools were conducted in industrial conditions at specific parameters of the friction stir welding process. Tool wear was evaluated through examination of the tool working surface. The results of the static tensile strength tests and metallographic examinations of the joints were used to evaluate the effect of tool wear and the coating impact on joint quality. The results obtained in the study show that the tool made of 1.2344 steel was intensively worn after the welding of a joint with the length of 200 m, increasing the risk associated with further use of the tool and suggesting the tool’s low durability. The use of the AlCrN coating led to an increase in tool life. The coating limits the process of tool wear and can be used as an anti-wear coating for tools used in the FSW of aluminum alloys.
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Imam, Imam kholiq Imam. "PERANCANGAN MEJA PUTAR ROLL WELDING SEBAGAI ALAT BANTU PENGELASAN (STUDI KASUS : ART WELDING PT. MECO INOXPRIMA)." MATRIK 20, no. 1 (September 30, 2019): 57. http://dx.doi.org/10.30587/matrik.v20i1.952.

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Welding that produces a quality connection and is very possible to connect metal by welding in various shapes and positions. Therefore the welding process must require a practical material supporting device and in accordance with the needs of all welding positions which will facilitate and provide welder comfort in welding. So that the results of maximum and quality welds (good hasis las visually) are produced in this study the type of connection used is angular joints with the aim of designing and making tools to get the results of welding joints and comparing the distortions that occur between using desk tools rotate and without using tools. In this study Gtaw welding was used with the brand DC ARC WELDER with type Bz-300F-3 and filler type ER 308L, Voltage 20-30 V, travel speed 60 mm / min and variations of Flow (A) namely 100 A, 125 A and 150 A. with a diameter of 2.4 mm as a filler. The study was limited to the design and manufacture of tools and measurements of distortion carried out 20 times. Distortion measurement uses a dial indicator with a starting point / zero point on the end of the test object and the end point in the weld joint area. The results show that the use of roll welding tools can reduce the occurrence of distortion. The smallest value of distortion is obtained using a roll welding rotary table tool which is equal to 0.33 degrees, while the smallest value of distortion without using roll welding is 1.33 degrees. And the use of roll welding rotary table aids can reduce welding defects reduce setup time and can increase production volume which results in a decrease in production costs, making it quite feasible and efficient in terms of the economy.
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Amin, Samir Ali, Mohannad Yousif Hanna, and Alhamza Farooq Mohamed. "Experimental Study the Effect of Tool Design on the Mechanical Properties of Bobbin Friction Stir Welded 6061-T6 Aluminum Alloy." Al-Khwarizmi Engineering Journal 14, no. 3 (August 15, 2018): 1–11. http://dx.doi.org/10.22153/kej.2018.01.003.

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Bobbin friction stir welding (BFSW) is a variant of the conventional friction stir welding (CFSW); it can weld the upper and lower surface of the work-piece in the same pass. This technique involves the bonding of materials without melting. In this work, the influence of tool design on the mechanical properties of welding joints of 6061-T6 aluminum alloy with 6.25 mm thickness produced by FSW bobbin tools was investigated and the best bobbin tool design was determined. Five different probe shapes (threaded straight cylindrical, straight cylindrical with 3 flat surfaces, straight cylindrical with 4 flat surfaces, threaded straight cylindrical with 3 flat surface and threaded straight cylindrical with 4 flat surfaces) with various dimensions of the tool (shoulders and pin) were used to create the welding joints. The direction of the welding process was perpendicular to the rolling direction for aluminum plates. Tensile and bending tests were performed to select the right design of the bobbin tools, which gave superior mechanical properties of the welded zone. The tool of straight cylindrical with four flats, 8 mm probe and 24 mm shoulders diameter gave better tensile strength (193 MPa), elongation (6.1%), bending force (5.7 KN), and welding efficiency (65.4%) according to tensile strength.
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Baskoro, Ario Sunar, A. A. D. Nugroho, D. Rahayu, Suwarsono, Gandjar Kiswanto, and Winarto. "Effects of Welding Parameters in Micro Friction Stir Lap Welding of Aluminum A1100." Advanced Materials Research 789 (September 2013): 356–59. http://dx.doi.org/10.4028/www.scientific.net/amr.789.356.

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Technology of Friction Stir Welding (FSW) as a technique for joining metal is relatively new. In some cases on Aluminum joining, FSW gives better results compared with the Arc Welding processes, including the quality of welds and less distortion. FSW can even use milling machine or drilling machine, by replacing the tools and the appropriate accessories. The purpose of this study is to analyze the effect of process parameters onmicro Friction Stir Lap Weldingto the tensile load of welds. In this case, Aluminum material A1100, with thickness of 0.4 mm was used. Tool material of HSS material was shaped with micro grinding process. Tool shoulder diameter was 3 mm, while the diameter pin was 2 mm and a length of pin was 0.7 mm. The parameter variations used in this study were the variable of spindle speed (2300, 2600, and 2900 rpm), variable oftooltilt angle(0, 1, 2 degree) and a variable ofFeed rate(50, 60, 70 mm/min). Where the variation of these parameters will affect to the mechanical properties of welds (as response) was the tensile load. Analysis and optimization parameters between the micro FSLW parameters with the tensile load of welds, is used aResponse Surface Methods(RSM). From the result of experiment and analysis, it is shown that the important welding parameter in Micro Friction Stir Lap welding process is tilt angle.
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Roudini, Ghodratollah, Sajad Gholami Shiri, and Masoud Mohammadi Rahvard. "Tool Design and Speed Parameters Effects on Microstructure and Tensile Strength of Friction Stir Welding (FSW) 5052 Al Alloys." Applied Mechanics and Materials 110-116 (October 2011): 3165–70. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.3165.

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there are some parameters in friction stir welding (FSW) technique such as tool design, tool rotation speed and tool travel which can be controlled in a precise manner thus controlling the energy input into the system. In this study the effects of these parameters were investigated on microstructure and tensile strength of 5052 aluminum alloy. Roll sheets of this alloy were welded by FSW method at different rotation speeds (400, 800, 1600 and 2500 rpm), welding speeds (50 and 100 mm/min) and tools shoulder diameters (14 and 20 mm). The microstructure results showed that the stir zone (SZ) and thermo-mechanically affected zone (TMAZ) had dynamically recrystallized and recovered respectively. Also the tensile strength of samples welded at tool rotation speeds of 400 and 800 rpm, travel speed 50 mm/min and tools shoulder diameter of 20 mm is similar to that of base metal. The tool rotation speeds of 400 rpm have a good welding ability with higher travel speed and lower tools shoulder diameter.
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Hynek, Petr, Viktor Kreibich, and Roman Firt. "SUITABLE PRODUCTION TOOLS SELECTION WITH THE USE OF EVOLUTIONARY ALGORITHMS." Acta Polytechnica 60, no. 1 (March 2, 2020): 56–64. http://dx.doi.org/10.14311/ap.2020.60.0056.

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This paper deals with the use of a production equipment simulation in the design of production systems, more specifically the welding equipment in the automotive industry. Based on the simulation results, a matrix, which defines the possibility of using given manufacturing tools (in this case welding guns are considered) to connect the plates using the electrical resistance spot welding process, is created. This matrix generates a set of several numbers of solutions depending on other parameters, such as the lowest price, the lowest number of used welding guns, etc. The goal is to solve this task. The solution is presented using mathematical programming. Specifically, the method of genetic evolutionary algorithms is being used. The Solver software is used to optimize the selection of the welding guns’ combination. The Solver is an add-on in MS Excel. The case study shows 15 welding points weldment on which the availability of 20 types of welding guns was simulated. The result is an ideal combination of 2 types of guns for the lowest price.
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Geçmen, İnan, Zarif Çatalgöl, and Mustafa Kemal Bilici. "Effect of welding parameters on mechanical properties and microstructure of friction stir welded brass joints." Matériaux & Techniques 106, no. 6 (2018): 606. http://dx.doi.org/10.1051/mattech/2018060.

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Friction stir welding is a method developed for the welding of high-alloy aluminum materials which are difficult to combine with conventional welding methods. Friction stir welding of MS 63 (brass) plates used different tools (tapered cylindrical, tapered threaded cylindrical), tool rotational speeds (1040, 1500, 2080 rpm) and traverse speeds (30,45,75,113 mm.min−1). Tensile, bending, radiography and microstructure tests were carried out to determine the mechanical properties of brass plates joined by friction stir welding technique. Microstructure characterization studies were based on optical microscope and SEM analysis techniques. In addition, after joining operations, radiographs were taken to see the internal structure failure. Brass sheets were successfully joined to the forehead in the macrostructure study. In the evaluation of the microstructure, it was determined that there were four regions of base metal, thermomechanically affected zone (TMEB), heat-affected zone (HAZ) and stir zone. In both welding tools, the weld strength increased with increasing tool rotation speed. The particles in the stir zone are reduced by increasing of the tool rotation speed. Given the strength and % elongation values, the highest weld strength was achieved with tapered pin tool with a tool rotation speed of 1040 rpm and a tool feed speed of 113 min−1.
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Hardjito, Agus, Imam Mashudi, Listiono Listiono, and R. N. Akhsanu Takwim. "Preheat Temperature Analysis of Cutting Knife Coating Violence in the Hard Facing Process of Aisi A35 Carbon Steel." Logic : Jurnal Rancang Bangun dan Teknologi 20, no. 3 (November 30, 2020): 160–66. http://dx.doi.org/10.31940/logic.v20i3.2152.

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The hard facing process is the welding process of SMAW by using a hard facing DIN 888 electrode as a hard facing to replace conventional cutting tool material. The purpose of this analysis is to determine the effect of preheating temperature on the welding of hard coatings on AISI A35 low carbon steel. The results of this study are expected to obtain optimum hardness on coated steel, from variations in the temperature of the preheating. there will be a change in the hardness of the welding deposit, the deposit will be used as cutting tools. The results of this study can be used as guidelines for making cutting tools.
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Aldanondo, Egoitz, Javier Vivas, Pedro Álvarez, and Iñaki Hurtado. "Effect of Tool Geometry and Welding Parameters on Friction Stir Welded Lap Joint Formation with AA2099-T83 and AA2060-T8E30 Aluminium Alloys." Metals 10, no. 7 (July 1, 2020): 872. http://dx.doi.org/10.3390/met10070872.

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In this paper the effect of tool geometry and welding parameters on friction stir welded lap joints with AA2099-T83 and AA2060-T8E30 aluminium alloys has been investigated through the study of the material flow and weld formation along with the reaction forces during friction stir welding (FSW) for various sets of welding parameters and two FSW tools with different geometrical features. The results showed that welding parameters and tool probe geometry strongly affect the characteristics of the typical defect features (hook and cold lap defects) of the friction stir welded lap joints. From the relationship established between the welding parameters, tool probe geometry and the hook and cold lap defect formation, some guidelines are concluded with the objective of guaranteeing appropriate FSW lap joint properties.
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Dissertations / Theses on the topic "Tools for stud welding"

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Goetze, Paul Aaron. "A Comparative Study of 2024-T3 and 7075-T6 Aluminum Alloys Friction Stir Welded with Bobbin and Conventional Tools." Miami University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=miami1556807142415698.

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Šuba, Marek. "Digitální zprovoznění robotizovaného výrobního systému pro odporové navařování." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443726.

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The subject of this diploma thesis is the simulation and digital commissioning of a robotic production system for welding elements such as studs on sheet metal parts. The basis of the work is search of information related to industrial robots, PLC control, tools used for welding, fixtures, manipulators, sensors, safety and protection elements commonly used in such production systems. The second part of the work deals with the given problem and it is a virtual commissioning of the given concept of a robotic production system. This means creating its simulation model in the Process Simulate environment, selecting robots, creating robotic trajectories, collision analysis, creating sensors, signals and optimization. Last part includes the connection of the simulation model with the software S-7PLCSIM Advanced and TIA Portal, the creation of control PLC logic in the form of a program, visualization and verification of their functionality using the above-mentioned connection with the simulation model.
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Van, Zyl Carlo Angelo Antonio. "Analysis and modelling of the temperature distribution during the friction taper stud welding of 10CrMo910." Thesis, Nelson Mandela Metropolitan University, 2008. http://hdl.handle.net/10948/720.

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Heat generation during the FTSW process plays and important role in determining the characteristics of the weld. In order to obtain temperature fields, a transient temperature heat analysis is required. An area is the maximum temperatures reached within the base material during the FTSW process. These temperatures will be measured during experimentation, and compared to the welding simulation done using FEA. From the literature search it appeared that no heat transfer analysis had been done using finite element methods.
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Ziegler, Andrew Glenn. "The design and fabrication of an automated shear stud welding system." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/17230.

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Tipaji, Pradeep Kumar. "E-design tools for friction stir welding: cost estimation tool." Diss., Rolla, Mo. : University of Missouri-Rolla, 2007. http://scholarsmine.mst.edu/thesis/pdf/Tipaji_09007dcc8043f642.pdf.

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Thesis (M.S.)--University of Missouri--Rolla, 2007.
Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed February 5, 2008) Includes bibliographical references (p. 29-31).
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LLORENTE, ANDRÉS. "New concept for the ground connection in Scania’s trucks and buses." Thesis, KTH, Elektroteknisk teori och konstruktion, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-154542.

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Regarding the ground electrical connection in trucks and buses, the requirements of earthing in heavy-duty vehicles were gathered and evaluated. The most important problems in the state-of-the-art grounding devices are corrosion, electrical resistance and uncertainty in the mounting process, altogether with depreciation over time. The goal is to come up with new concepts that can give a more reliable and better ground connection into the frame with faster, easier and safer manufacturing operations. Several methods for attaching different ground connectors to the steel frame are going to be investigated, including bolted connections, press devices, soldering, brazing and local plating spots. It will be shown that the welding operation gives the best electrical results, while lowering mounting costs, time and variability. Two welded connectors are then going to be proposed as the best alternatives and a parallel investigation with both of them is going to be carried out. These new concepts, filed for patent protection, are going to be labelled as “SRM Welded ground stud” and “SRM Welded grounding nut”. The first of them consists of a plated steel threaded stud (M8 or M10) with a ring shaped contact surface built in one of the ends, where the Ø12 mm weld is to be performed onto the uncoated frame. The second concept comprises a stainless steel M10 round nut welded over a punched hole. The optimization will also cover different alternatives for plating metals, contact aid compounds and masking caps for both devices. The risk of mechanical weakening of the frame because of the new welded concepts is going to be tested for the case of the SRM Welded ground stud. The results will show an increase in fatigue resistance of at least 20% compared to the current ground screw. Furthermore, the strength of the welded interface will show higher proof load than the stud itself. The welded nuts, tested with torque loading, will show a sufficient performance as well. The electrical tests present an expected decrease in ground resistance of 40% for the welded stud and an increase of 28% for the welded nuts, compared with the current ground screw. The conclusion of this Master Thesis states the recommendation of the implementation of a new grounding method through the SRM Welded ground stud. Although, some modifications in the transportation process of the frames might be needed because of the new protruding parts, pointing an estimated distance of 20mm from the frame surface.
När det gäller jordad elanslutning i lastbilar och bussar, har kraven på jordning i tunga fordon samlats och utvärderats. De största problemen i de mest avancerade jordade enheterna är korrosion, elektriskt motstånd och osäkerhet i monteringsprocessen, sammantaget med avskrivning över tiden. Målet är att utveckla nya koncept som kan ge en bättre och mer tillförlitlig jordanslutning i ramen med snabbare, enklare och säkrare tillverkning. Flera metoder för att fästa olika mark kontakter till stålramen kommer att undersökas, bland annat skruvförband, pressanordning, lödning, hårdlödning och lokala pläteringsfläckar. Det kommer att visa att svetsning ger den bästa elektriska resultatet, samtidigt som monteringskostnader, tid och variabilitet minskar. Två svetsade kontakter kommer sedan att föreslås som de bästa alternativen och en parallell undersökning med dem båda kommer att genomföras. Dessa nya koncept, för vilka patentskydd har ansökts, kommer att märkas som “SRM Svetsade marktapp” och “SRM Svetsade jordmutter”. Den första av dem består av en pläterad stålgängad tapp med en ringformad kontaktyta byggt i en av ändarna, där svetsen skall utföras på den obelagda ramen. Det andra konceptet består av en rostfri rund mutter svetsad över ett stansat hål. Optimeringen kommer även att omfatta olika alternativ för pläterade metaller, kontaktstöds föreningar och maskeringslock för de båda enheterna. Risken för mekanisk försvagning av ramen på grund av det nya svetsade konceptet kommer att testas med avseende på fallet med SRM Svetsad bottenreglar. Resultaten visar en ökad utmattningshållfasthet på minst 20% jämfört med den nuvarande jordskruven. Dessutom kommer styrkan av den svetsade gränsytan uppvisa en högre provbelastning än tappen själv. De svetsade muttrarna, testade med momentbelastning, kommer också uppvisa en tillräcklig prestanda. De elektriska testerna presenterade en förväntad minskning av markmotståndet på 40% för svetsade tappar och en ökning med 28% för svetsade muttrar, jämfört med den nuvarande jordskruven. Slutsatsen av detta examensarbete anger en rekommendation av genomförandet av en ny jordningsmetod genom en SRM Svetsad marktapp. Trots detta kan vissa ändringar behövas i transportprocessen av ramarna på grund av de nya utskjutande delarna, vilka pekar från ramens yta med ett uppskattat avstånd av 20 mm.
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Stahl, Aaron L. "Experimental Measurements of Longitudinal Load Distributions on Friction Stir Weld Pin Tools." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd1018.pdf.

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Olsson, Rickard. "Signal processing and high speed imaging as monitoring tools for pulsed laser welding." Licentiate thesis, Luleå tekniska universitet, Produkt- och produktionsutveckling, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-26555.

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In Laser Materials Processing there has always been a need for suitable methods to supervise and monitor the processes on line, to ensure correct production quality or to trigger alarms when failures are detected. Numerous investigations have been made in this field, including experimental and theoretical work. It is common practice in this field to monitor surface temperature, plasma radiation and back-reflected laser light, coaxially with the laser beam. Traditionally, the monitoring systems involved carry out no statistical analysis of the signals received - they merely involve thresholds. This thesis looks at the feedback collected during laser welding using such a co-axial setup from a Digital Signal Processing point of view and also uses high speed video photography to correlate signal perturbations with process anomalies.Modern Digital Signal Processing techniques such as Kalman filtering, Principal Component Analysis and Cluster Analysis have been applied to the measurement data and have generated new ways to describe the weld behaviour using parameters such as reflected pulse shape. The limitations of commercially available welding supervision systems have been studied and design suggestions for the next generation of on line weld monitoring equipment have been formulated.
Godkänd; 2009; 20091103 (ricols); LICENTIATSEMINARIUM Ämnesområde: Produktionsutveckling/Manufacturing Systems Engineering Examinator: Professor Alexander Kaplan, Luleå tekniska universitet Tid: Onsdag den 16 december 2009 kl 13.00 Plats: E 232, Luleå tekniska universitet
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Sued, Mohammad Kamil. "Fixed bobbin friction stir welding of marine grade aluminium." Thesis, University of Canterbury. Mechanical Engineering, 2015. http://hdl.handle.net/10092/10729.

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PROBLEM - The bobbin friction stir welding (BFSW) process has potential benefits for welding thin sheet aluminium alloy. The main benefits of friction stir welding over conventional thermal welding processes are minimisation of energy usage, no need for consumables, potential for good weld quality without porosity, no fumes, minimal adverse environmental effects (green), minimal waste (lean), and reduced threats to personal health and safety. The BFSW process has further advantages over conventional friction stir welding (CFSW) in the reduction of welding forces, faster welding, and less fixturing. It is especially attractive to industries that join thin sheet material, e.g. boat-building. The industrial need for this project arose from the desire to apply the technology at a ship manufacturing company, INCAT located in Hobart, Tasmania, Australia. However there are peculiar difficulties with the specific grade of material used in this industry, namely thin sheet aluminium Al6082-T6. Early efforts with a portable friction stir welding machine identified the process to have low repeatability and reproducibility, i.e. process-instability. There are a large number of process variables and situational factors that affect weld quality, and many of these are covert. This is also the reason for divergent recommendations in the literature for process settings. PURPOSE - The main purpose of this research was to identify covert variables and better understand their potentially adverse effects on weld quality. Therefore, this thesis investigated the hidden variables and their interactions. Developing this knowledge is a necessity for making reliable and repeatable welds for industrial application. APPROACH - An explorative approach that focused on the functional perspective was taken. An extensive empirical testing programme was undertaken to identify the variables and their effects. In the process a force platform and BFSW tools were designed and built. A variety of machine platforms were used, namely portable friction stir welding, manual milling machine and computer numerical control (CNC) milling machine. The trials were grouped into 14 test plans. These are tool shoulder gap, spindle and travel speed, tool features, machines, tool fixation, machinery, welding direction, plate size (width and dimension), support insulation, tool materials, substrate properties and fixation. For the welded plates besides visual inspection of the weld, current, force, and temperature were measured. The Fourier transform was used to analyse the frequency response of machines. Also the welded samples were tested to the maritime standards of Det Norske Veritas (DNV). A number of relationships of causality were identified whereby certain variables affected weld quality. A model was developed to represent the proposed causality using the IDEF0 systems engineering method. FINDINGS - From these trials six main variables have been identified. These are tool features, spindle speed, travel speed, shoulder gap compression, machine variability, tool and substrate fixation. A rigid system is required for a consistent weld results. Under this condition, full pin features (threads and flats) need to be used to balance the adverse effects of individual features. It has been shown that fabricated bobbin tools with sharp edges can cause cuts and digging thus this feature should be avoided. Additionally, the substrate should have continuous interaction with the tool so the shoulder interference needs to be fixed and well-controlled. It is found that the compression generated by the shoulder towards the substrate helps material grabbing for better tool-substrate interaction. It is also shown that tool entry causes ejection of material and hence an enduring mass deficit, which manifests as a characteristic tunnel defect. The new explanation of the formation, origin and location of this defect has been explained. Material transportation mechanisms within the weld have been elucidated. It is also found that the role of the travel speed is not only to control heat generation but also for replacing the deficit material. Additionally, heat supplied to the weld depends not only on thickness, but also the width of the plate. Different types of machine cause an interaction in the material flow through their controller strategies. Jerking motion can occur at a slow travel speed, which also alters the way material is being transported. The Fourier transform (FFT) has been used to identify the characteristics of good and bad BFSW welds. This has the potential to be expanded for real-time process control. IMPLICATIONS - Tool deflection and positioning, material flow and availability are identified as affecting weld quality through stated mechanisms. The impact is even more severe when involving thin-plate aluminium. For the industry to successfully adopt this technology the process typically needs tight control of shoulder gap, tool strength and stiffness, feature fabrication, substrate and tool fixation. Additionally spindle and travel speed need to be adjusted not only based on the type of materials and thickness, but also the width, type of machine and method of tool entry. ORIGINALITY - New data are presented, which lead to new insights into the welding mechanics, production settings, material transportation and weld defects for BFSW on thin sheet material. The conventional idea that the welding tool has a semi-steady interaction with the substrate is not supported. Instead the interaction is highly dynamic, and this materially affects the weld-quality, especially in the difficult-to-weld material under examination. Factors such as shoulder gap, tool and substrate fixation compliance and machine types emerge as variables that need to be given attention in the selection of process parameters. The causal relationships have been represented in a conceptual model using an IDEF0 system approach. This study has made several original contributions to the body of knowledge. First is the identification of previously hidden variables that effect weld formation for the fixed gap BFSW process. The second contribution is a new way of understanding the material transportation mechanics within the weld. This includes the flow around the pin in the plane of the weld, the vertical transportation of material up the pin, the formation of turbulent-like knit lines at the advancing side, and the formation of tunnel defects. Also included here is a new understanding of how material deficit arises at tool entry and exit, and from flash/chips, and how this contributes to the tunnel weld defect. In addition, new understandings of the role of feed rate have been identified. Related to the material transportation, the work has also identified the importance of an interference fit between the substrate and tool. A third contribution is the identification of the dynamic interaction between tool and substrate. This identifies the important role rigidity plays. Associated with this is the identification of frequency characteristics of the motors under load. The fourth contribution is identification of the specific process settings for the difficult-to-weld material of AL6082-T6. The fifth contribution is the development of a novel method of fabricating bobbin friction stir welding tools as embodied in a patent application.
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Karki, Utsab. "Experimental and Numerical Study of High-Speed Friction Stir Spot Welding of Advanced High-Strength Steel." BYU ScholarsArchive, 2015. https://scholarsarchive.byu.edu/etd/5521.

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With the desire to lighten the frame while keeping or increasing the strength, Advanced High-Strength Steels (AHSS) have been developed for use in the automotive industry. AHSS meet many vehicle functional requirements because of their excellent strength and acceptable ductility. But joining AHSS is a challenge, because weldability is lower than that of mild steels. Friction stir spot welding (FSSW) is a solid state joining process that can provide a solution to the weldability issues in AHSS, but FSSW has not been studied in great detail for this application. In this work, Si3N4 tools were used for FSSW experiments on DP 980 steel with 1.2mm thickness. Joint strength was measured by lap shear tension testing, while thermocouples were used for the temperature measurements. A finite element model was developed in order to predict material flow and temperatures associated with FSSW. Since a 3D model of the process is very time consuming, a novel 2D model was developed for this study. An updated Lagrangian scheme was employed to predict the flow of sheet material, subjected to the boundary conditions of the fixed backing plate and descending rotating tool. Heat generation by friction was computed by including the rotational velocity component from the tool in the thermal boundary conditions. Material flow was calculated from a velocity field while an isotropic, viscoplastic Norton-Hoff law was used to compute the material flow stress as a function of temperature, strain and strain rate. Shear stress at the tool/sheet interface was computed using the viscoplastic friction law. The model predicted welding temperatures to within 4% of the experiments. The welding loads were significantly over predicted. Comparison with a 3D model of FSSW showed that frictional heating and the proportion of total heat generated by friction were similar. The position of the joint interface was reasonably well predicted compared to experiment.
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Books on the topic "Tools for stud welding"

1

American Welding Society. Machinery and Equipment Committee. Specification for metal cutting machine tool weldments. 3rd ed. Miami, FL: The Society, 1993.

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Lotz, Marc. Erhöhung der Fertigungsgenauigkeit beim Schwungrad-Reibschweissen durch modellbasierte Regelungsverfahren. München: Herbert Utz Verlag, 2013.

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Learn to weld: Beginning MIG welding and metal fabrication basics. Beverly, MA: Quarry Books, 2014.

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Nielsen, C. V. Modeling of Thermo-Electro-Mechanical Manufacturing Processes: Applications in Metal Forming and Resistance Welding. London: Springer London, 2013.

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SACKS. Welding: Princ & Pract -Stud Guide. Schools, 1993.

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Patnaik, Srinivas M. Development of an automated capacitor discharge welding system. 1996.

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The 2006-2011 World Outlook for Direct Current Arc Welding Generators Excluding Stud Welding Equipment. Icon Group International, Inc., 2005.

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Parker, Philip M. The 2007-2012 World Outlook for Direct Current Arc Welding Generators Excluding Stud Welding Equipment. ICON Group International, Inc., 2006.

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Parker, Philip M. The 2007-2012 World Outlook for Complete Direct Current Arc Welding Units Excluding Stud Welding Equipment. ICON Group International, Inc., 2006.

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The 2006-2011 World Outlook for Stud Welding Equipment Excluding Arc, Resistance, and Gas Welding Equipment. Icon Group International, Inc., 2005.

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Book chapters on the topic "Tools for stud welding"

1

Králik, Marian, and Vladimír Jerz. "Increasing of Stud Welding Efficiency in the Body Shop." In Lecture Notes in Mechanical Engineering, 150–61. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-62784-3_13.

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Hess, B. V., E. A. Fuchs, and A. R. Ortega. "Development of Vision Tools for Welding Applications." In Advances in Signal Processing for Nondestructive Evaluation of Materials, 357–70. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1056-3_28.

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Rose, Scott, Murray Mahoney, Tracy Nelson, and Carl Sorensen. "Tool Load and Torque Study for Portable Friction Stir Welding in Aluminum." In Friction Stir Welding and Processing VI, 373–79. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118062302.ch43.

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Pont, D., and T. Guichard. "Sysweld® : Welding and Heat Treatment Modelling Tools." In Computational Mechanics ’95, 248–53. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-79654-8_41.

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Chen, Gaoqiang, Qingyu Shi, and Zhili Feng. "On the Material Behavior at Tool/Workpiece Interface During Friction Stir Welding: A CFD Based Numerical Study." In Friction Stir Welding and Processing VIII, 251–58. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119093343.ch27.

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Chen, Gaoqiang, Qingyu Shi, and Zhili Feng. "On the Material Behavior at Tool/Workpiece Interface During Friction Stir Welding: A CFD Based Numerical Study." In Friction Stir Welding and Processing VIII, 251–58. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-48173-9_27.

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Ridges, C. S., M. P. Miles, Y. Hovanski, J. Peterson, and R. Steel. "Wear Testing of Friction Stir Spot Welding Tools for Joining of DP 980 Steel." In Friction Stir Welding and Processing VI, 97–103. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118062302.ch13.

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Goetze, Paul, Mateusz Kopyściański, Carter Hamilton, and Stanisław Dymek. "Comparison of Dissimilar Aluminum Alloys Joined by Friction Stir Welding with Conventional and Bobbin Tools." In Friction Stir Welding and Processing X, 3–12. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-05752-7_1.

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Madavan, S. P., Manas Mohan Mahapatra, and Pradeep Kumar. "On Friction Stir Welding of Mg-Zn-RE-Zr Alloy Using Threaded Tools for Aerospace Application." In Friction Stir Welding and Processing VII, 237–44. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-48108-1_24.

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Madavan, S. P., Manas Mohan Mahapatra, and Pradeep Kumar. "On Friction Stir Welding of Mg-Zn-RE-Rr Alloy Using Threaded Tools for Aerospace Application." In Friction Stir Welding and Processing VII, 235–44. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118658345.ch24.

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Conference papers on the topic "Tools for stud welding"

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Paramaguru, Dhanis, Srinivasa Rao Pedapati, Mokhtar Awang, and Hamed Mohebbi. "Mathematical Model to Predict Tensile Strength of Underwater Friction Stir Welded (UFSW) on 5052 Aluminium Alloys." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-88610.

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In this study, AA5052 joints are fabricated by underwater friction stir welding and the process parameters are optimized for maximum UTS value by utilizing a developed mathematical model. The experiments are conducted by using Taguchi’s L9 orthogonal array, and polynomial regression analysis is applied to generate the model. Statistical tools such as analysis of variance (ANOVA), coefficient of determination is applied to check the adequacy of the developed model at 95% confidence level. Type of welding tools is identified as the most influencing factor on deciding the mechanical properties of the joint, followed by tool rotational speed and tool welding speed. The optimum process parameters are identified by the Taguchi parametric design method. The results indicated that the optimum process parameters combinations for better mechanical properties is attained at tool rotational speed of 1500 rpm and tool welding speed of 100 mm/min, using taper threaded cylindrical tool. A maximum UTS value of 225.48 MPa is obtained and it is verified by confirmation test.
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Shuai, Jian, Xiaolin Wang, and Xiaomin Wang. "Failures of Welding Repaired Pipeline." In 2008 7th International Pipeline Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/ipc2008-64255.

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Enormous attention has been attracted to the safety issues regarding numerous pipelines that have had to be repaired by welding. The present paper describes experimental and numerical research conducted to assess the structural condition of welding-repaired pipeline, subjected to internal pressure including cyclic load. Six full-scale pipe specimens are tested under pressure to determine their structural capacity. Their stress distributions are measured, and their stress concentrations and yield and burst limit load are analyzed. The results of the present study demonstrate that on the pipelines with a single drilled hole the burst occurred far from the welding sites, whereas on the pipelines with several holes drilled in short span the burst took place between the two adjacent tube caps, suggesting that multi-cap repair is disadvantageous to the loading capability of the pipelines. It is also found that the burst pressure may not be affected by welding either tube-cap or patch and cyclic loading, but the yield limit loads of the repaired pipelines decreased respect to undamaged pipeline, among which the lowest one decreased up to 85% of that of the undamaged pipeline. In addition, using nonlinear finite element tools, stresses state in welding repaired pipeline is calculated. It is showed that bulging occurs in long and narrow area along longitudinal direction, addressing where burst rupture occur.
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Lee, S. Shawn, Tae Hyung Kim, S. Jack Hu, Wayne W. Cai, and Jeffrey A. Abell. "Analysis of Weld Formation in Multilayer Ultrasonic Metal Welding Using High-Speed Images." In ASME 2015 International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/msec2015-9262.

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One of the major challenges in manufacturing automotive lithium-ion batteries and battery packs is to achieve consistent weld quality in joining multiple layers of dissimilar materials. While most fusion welding processes face difficulties in such joining, ultrasonic welding stands out as the ideal method. However, inconsistency of weld quality still exists because of limited knowledge on the weld formation through the multiple interfaces. This study aims to establish real-time phenomenological observation on the multilayer ultrasonic welding process by analyzing the vibration behavior of metal layers. Such behavior is characterized by a direct measurement of the lateral displacement of each metal layer using high-speed images. Two different weld tools are used in order to investigate the effect of tool geometry on the weld formation mechanism and the overall joint quality. A series of microscopies and bond density measurements is carried out to validate the observations and hypotheses of those phenomena in multilayer ultrasonic welding. The results of this study enhance the understanding of the ultrasonic welding process of multiple metal sheets and provide insights for optimum tool design to improve the quality of multilayer joints.
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Ling, S. F., X. Li, and Z. Sun. "Process Analysis for Ultrasonic Welding of Thermoplastics." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-67182.

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Ultrasonic welding is one of the most popular techniques for joining thermoplastics. In this paper, a process analysis was conducted to describe the ultrasonic welding mechanism for thermoplastics. An in-situ sensor-less method was used to measure the welding force and the velocity applied to the workpiece. Using this method, the mechanical impedance variation and the force versus displacement curve at any time during ultrasonic welding can be generated and quantified. A detailed description of ultrasonic welding process for thermoplastics was then proposed based on the experimental data obtained. In this description, the welding process is divided into four distinct phases: the viscoelastic-plastic phase, the energy director melting phase, the melting completing phase and the upper & lower parts coupling phase. The process analysis clearly reveals that the mechanical impedance at the joint interface is the most characteristic variable of ultrasonic welding. Both the analysis method and the description of the process in the study are demonstrated to be useful tools for better understanding of ultrasonic welding mechanism.
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Liu, Xun, Sheng Zhao, and Jun Ni. "Material Flow Visualization of Dissimilar Friction Stir Welding Process Using Nano-CT." In ASME 2018 13th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/msec2018-6363.

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In this study, Friction stir welding (FSW) of aluminum alloy 6061-T6511 to TRIP 780 steel are analyzed under various process conditions. Two FSW tools with different sizes are used. To understand the underlying joining mechanisms and material flow behavior, nano-CT is applied for a 3D visualization of material distribution in the weld. With insufficient heat input, steel fragments are generally scattered in the weld zone in large pieces. This is observed in a combined condition of big tool, small tool offset and low rotating speed or a small tool with low rotating speed. Higher heat input improves the material flowability and generates a continuous strip of steel. The remaining steel fragments are much finer. When the volume fraction of steel involved in the stirring nugget is small, this steel strip can be in a flat shape near the bottom, which generally corresponds to a better joint quality and the joint would fracture in the base aluminum side. Otherwise, a hook structure is formed and reduces the joint strength. The joint would fail with a combined brittle behavior on the steel hook and a ductile behavior in the surrounding aluminum matrix.
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Jebaraj, D. Jones Joseph, and R. Sankaranarayanan. "Friction stud welding – An overview." In 3RD INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC-2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0001232.

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Atharifar, Hosein, and Radovan Kovacevic. "Numerical Study of the Tool Rake Angle Effect on the Material Flow in Friction Stir Welding Process." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-41962.

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Minimizing consumed energy in friction stir welding (FSW) is one of the prominent considerations in the process development. Modifications of the FSW tool geometry might be categorized as the initial attempt to achieve a minimum FSW effort. Advanced tool pin and shoulder features as well as a low-conductive backing plate, high-conductive FSW tools equipped with cooling fins, and single or multi-step welding processes are all carried out to achieve a flawless weld with reduced welding effort. The outcomes of these attempts are considerable, primarily when the tool pin traditional designs are replaced with threaded, Trifiute or Trivex geometries. Nevertheless, the problem remains as to how an inclined tool affects the material flow characteristics and the loads applied to the tool. It is experimentally proven that a positive rake angle facilitates the traverse motion of the FSW tool; however, few computational evidences were provided. In this study, numerical material flow and heat transfer analysis are carried out for the presumed tool rake angle ranging from −4° to 4°. Afterwards, the effects of the tool rake angle to the dynamic pressure distribution, strain-rates, and velocity profiles are numerically computed. Furthermore, coefficients of drag, lift, and side force and moment applied to the tool from the visco-plastic material region are computed for each of the tool rake angles. Eventually, this paper confirms that the rake angle dramatically affects the magnitude of the loads applied to the FSW tool, and the developed advanced numerical model might be used to find optimum tool rake angle for other aluminum alloys.
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Hynes, N. R. J., P. Nagaraj, and J. A. J. Sujana. "Controller for friction stud welding machine." In 2013 International Conference on Energy Efficient Technologies for Sustainability (ICEETS). IEEE, 2013. http://dx.doi.org/10.1109/iceets.2013.6533502.

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Fanous, Ihab F. Z., Maher Y. A. Younan, and Abdalla S. Wifi. "Study of the Effect of Boundary Conditions on Residual Stresses in Welding Using Element Birth and Element Movement Techniques." In ASME 2003 Pressure Vessels and Piping Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/pvp2003-1933.

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The structure in which the welding process is performed highly affects the residual stresses generated in the welding. This effect is simulated by choosing the appropriate boundary conditions in modeling the welding process. The major parameters of the boundary conditions are the method by which the base metal is being fixed and the amount of heat being applied through the torch. Other parameters may include the coefficients of thermal heat loss from the plate which may simulate the media in which the welding is taking place. In modeling the welding process, 2D forms of approximation were developed in analyzing most of the models of such problem. 3D models analyzing the welding process were developed in limited applications due to its high computation time and cost. With the development of new finite element tools, namely the element movement technique developed by the authors, full 3D analysis of the welding process is becoming in hand. In the present work, three different boundary conditions shall be modeled companng their effect on the welding. These boundary conditions shall be applied to two models of the welding process: one using the element birth technique and the other using the element movement technique showing the similarity in their responses verifying the effectiveness of the latter being accomplished in a shorter time.
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Li, Xiaoran, Russell Borduin, Roland Chen, and Wei Li. "An Experimental Study on the Effect of Compression Force Uniformity in Electrosurgical Tissue Welding." In ASME 2016 11th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/msec2016-8731.

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Bipolar forceps are a type of electrosurgical device (ESD) widely used for tissue welding in modern surgeries. ESDs have many advantages over traditional surgical tools including reduced blood loss, improved efficiency and lower surgeon fatigue. However, these devices suffer from tissue sticking and damage due to overheating which leads to poor tissue joint quality. The problem is potentially caused by uneven power distribution due to non-uniform compression applied by the bipolar forceps. In this study, the effect of compression force uniformity was investigated with an experimental setup to achieve a uniform and consistent compression force at the jaws of bipolar forceps. Comparative tissue welding experiments were conducted under both uniform and non-uniform compression force conditions with tissue mimicking material. In situ welding process parameters including compression force, electrical voltage, and current were collected and analyzed to understand the effect of compression force uniformity. Comparing the uniform to non-uniform compression force cases, the results indicate that tissue impedance is lower due to increased tissue contact area; the electrical power is initially higher during the first few milliseconds, but becomes lower for the rest of the welding process recorded. The experimental device developed in this study provides an important platform to understand the difference of tissue welding process under uniform and non-uniform compression force conditions.
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Reports on the topic "Tools for stud welding"

1

Cooper, Richard B., and Terry J. Reel. Fundamentals of Arc Stud Welding: An Interactive Multimedia Lesson for Shipyard Training (The National Shipbuilding Research Program). Fort Belvoir, VA: Defense Technical Information Center, November 1993. http://dx.doi.org/10.21236/ada455165.

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Patterson, Tate, Joris E. Hochanadel, John C. Lippold, Boyd E. Panton, David C. Tung, and Matthew Q. Johnson. Development of Computational Tools for Laser and Electron Beam Welding. Office of Scientific and Technical Information (OSTI), September 2019. http://dx.doi.org/10.2172/1569589.

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