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Auswahl der wissenschaftlichen Literatur zum Thema „BMT tooling system“
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Zeitschriftenartikel zum Thema "BMT tooling system"
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Sae-eaw, Nuttakorn, und Yingyot Aue-u-lan. „Friction Evaluation for Combined Drawing and Ironing Process With Thick Sheet by Ball Ironing Test“. Journal of Manufacturing Science and Engineering 143, Nr. 6 (17.12.2020). http://dx.doi.org/10.1115/1.4049035.
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Abstract Ball ironing test (BIT) was proposed to evaluate the tribological conditions of the combined drawing and ironing process for thick sheets. This process was used to produce the products with controlled thickness at the sidewall, such as pulleys. Finite element modeling (FEM) was utilized to study the effects of the main geometrical parameters on friction from the BIT results and thereby design suitable tooling geometries. Clearance-to-thickness ratio (c/t), inner die radius (rd), and inner diameter of specimen (di) were adopted as process and specimen parameters. The results of the BIT comprised the maximum load and final height of the specimen. Slope sensitivity (λ) in the results was introduced to evaluate the friction sensitivity. According to the simulation, the maximum load was highly sensitive to the friction and was thus used as a friction indicator. Friction calibration curve (FCC) was established and fitted on the basis of a simplified mathematical model as a function of the maximum load and friction factor (m). The BIT with various types of lubricants was performed experimentally to evaluate the performances of the lubricants and approximate the friction factors. The solid lubricant, Zn-Ph coating, provided the least forming with m of 0.03. The liquid lubricant, oil with extreme pressure (EP) additives, performed similarly to the Zn-Ph coating with m of 0.07. In conclusion, the BIT test performed very well in ranking the lubricants and determining the friction value of the combined drawing and ironing process for thick sheets.
Dissertationen zum Thema "BMT tooling system"
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Mrkos, Jan. „Konstrukce revolverové hlavy pro CNC soustruh s přímým pohonem“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443736.
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The diploma thesis deals with the design of a direct drive tool turret, which serves as a tool magazine for a CNC lathe. In the introductory part of the work, a research was performed in the field of automatic tool change with a focus on tool turrets and their main structural units. The introductory research is followed by the main part of the work, which begins with the selection of appropriate design solutions, followed by a presentation of the tool turret design created in CAD software Autodesk Inventor 2021 and in the final part of thesis the key elements of the proposed design are verified by calculations.
Buchteile zum Thema "BMT tooling system"
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Xu, Xun. „Internet-Based Integration“. In Integrating Advanced Computer-Aided Design, Manufacturing, and Numerical Control, 311–25. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-59904-714-0.ch015.
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Today, companies often have operations distributed around the world, and production facilities and designers are often in different locations. Increased use of outsourcing and geographically dispersed supply chains further complicates the manufacturing world. The globalization of manufacturing business means that companies should be able to design, build, and maintain, anywhere at any time. Manufacturing engineers are seeking effective tools during planning to help improve production processes, plant designs, and tooling, and to allow earlier impact on product designs. Collaboration may exist in a number of activities such as (a) reviewing designs with the design team; (b) interfacing with tooling designers; (c) verifying tooling assembly and operation; (d) reviewing manufacturing process plans and factory layouts; and (e) discussing manufacturing problems with suppliers. In larger companies, collaboration is becoming increasingly important in design and manufacturing. Everyone knows something, but no one knows everything. There is an evolution from individuals working independently to functioning in workgroups, as well as enterprise collaboration and collaboration throughout a supply chain. Within a supply chain, sharing knowledge has become paramount. This chapter describes the methods of developing an Internet-enabled, integrated CAD, CAPP, CAM, and CNC system to support collaborative product development. The main goal is to provide a team environment enabling a group of designers and engineers to collaboratively develop a product in real time. STEP can be used to represent product data for heterogeneous application systems and data formats, and the Web-based Product Structure Manager developed can be an effective function module to co-ordinate collaborative activities.
Konferenzberichte zum Thema "BMT tooling system"
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Velásquez, Maria E., und Luis A. Velásquez. „An Internet-Based Solution for the Technical Support of Tooling Operations“. In ASME 2000 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/detc2000/cie-14604.
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Abstract A system named Tool Trial System (TTS), which is capable of collating and disseminating information relating to tool trials amongst a variety of user groups, has been developed. In the context of tooling engineers TTS has provided a platform from which it is possible to submit and retrieve highly specific technical tooling data on the World Wide Web. TTS has been developed under a distributed philosophy and it can be downloaded by remote users in the form of Java applets, through any computer with Internet connection and using conventional Java enabled browsers without the requirements of using middle tiers software or hardware between clients and server sides. TTS uses a 100% pure Java driver for remote database access and it was developed using PowerJ, which is a graphical programming tool able to speed up the creation of Java projects. This work demonstrated not only the suitability of the Internet as a distributed computing resource, but more importantly it was possible to look at the ways in which approved data could be analyzed and then applied to cutting data selection within the Process Planning arena.
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Sohrabi, Shirin, Michael Katz, Oktie Hassanzadeh, Octavian Udrea und Mark D. Feblowitz. „IBM Scenario Planning Advisor: Plan Recognition as AI Planning in Practice“. In Twenty-Seventh International Joint Conference on Artificial Intelligence {IJCAI-18}. California: International Joint Conferences on Artificial Intelligence Organization, 2018. http://dx.doi.org/10.24963/ijcai.2018/864.
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We present the IBM Research Scenario Planning Advisor (SPA), a decision support system that allows users to generate diverse alternate scenarios of the future and enhance their ability to imagine the different possible outcomes, including unlikely but potentially impactful futures. The system includes tooling for experts to intuitively encode their domain knowledge, and uses AI Planning to reason about this knowledge and the current state of the world, including news and social media, when generating scenarios.
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Ding, Y., und T. J. Nye. „Agent-Based Distributed Collaborative Sourcing of Stamped Parts“. In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-62040.
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Metal stampings are an important manufactured product. Their production cycle includes the steps of part design, process and tooling design, tooling construction, and production. Each of these activities may be performed within departments of a single manufacturing plant, but more commonly are separated across firms and are widely distributed geographically. To be most effective, this process should be performed concurrently, with considerable flows of information along the supply chain. Research on Agent-based systems shows they are very promising in this type of task as individual agents can wrap particular domain knowledge and analysis algorithms, are always available to respond and are able to autonomously form networks as needed to complete product and process design tasks. In this paper we examine the particular case where alternate suppliers may be selected to supply components to the supply chain. Agents are used to connect the suppliers to the supply chain network. Each supplier firm’s agent understands the firm’s production capabilities, costs and capacity loading, and is able to negotiate with a broker agent representing the stamped part customer. A prototype system is described, and case studies are used to show the benefits of an Agent-based approach to this supply chain problem.
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Jalluri, Chandra, Prashanth Magadi, Mohan Viswanathan, Richard Furness, Werner Kluft und Friedhelm Hostettler. „An Advanced Vibration Based Real-Time Machine Health and Process Monitoring System“. In ASME 2006 International Manufacturing Science and Engineering Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/msec2006-21093.
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The ever-increasing emphasis on product quality with increased productivity has been driving the automotive manufacturing industry to find new ways to produce high quality products without increasing production time and manufacturing costs. In addition, automotive manufacturing plants are implementing flexible manufacturing strategies with computer numerical control (CNC) machining centers to address excess capacity, shifting consumer trends and future volume uncertainty of products. Over time, plants have used several preventative and predictive maintenance methods to address machine reliability. Such systems include, but are not limited to, scheduling machine down times at regular intervals to check/replace bearings and other spindle/slide components before they can have an adverse affect on part quality. However, most of these methods and traditional systems are not cost effective and cause significant machine down-times, safety concerns and labor overheads and do not reliably monitor other process issues, such as, clamping, incoming stock variations and thermal phenomena. This paper describes an advanced real-time vibration based machine health and process monitoring system that has been developed to address the above issues. The system, called Condition Indicator Analysis Box for CNC (CIAB™-CNC), is easily configurable, and provides real-time data and historical trends of machines, processes and tooling, enabling manufacturing plants to make accurate predictions regarding future production runs. The system also aids in the optimization of preventative maintenance tasks in a cost effective manner. The developed system monitors machine spindle and slide for unbalance, misalignment, damaged/spalled bearings, mechanical looseness, and ball screw issues. Additionally, it performs in-process monitoring during machining as well as non-machining by individual tool and/or feature to detect tool breakages, quality issues and other gross process or machine anomalies. Innovative statistical trending algorithms enable the system to automatically adapt to valid process/parameter changes and significantly reduce the chances of false alarms and warnings. The developed system provides manufacturing plants with a tool to analyze machine tools and their associated components in an effort to gather information they can use effectively to make decisions regarding flexible machines, processes and tooling.
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Nagel, Jacquelyn K. S., und Frank W. Liou. „Hybrid Manufacturing System Modeling and Development“. In ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/detc2012-70247.
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Reliable and economical fabrication of metallic parts with complicated geometries is of considerable interest for the aerospace, medical, automotive, tooling and consumer products industries. In an effort to shorten the time-to-market, decrease the manufacturing process chain, and cut production costs of products produced by these industries, research has focused on the integration of multiple unit manufacturing processes into one machine. The end goal is to reduce production space, time, and manpower requirements. Our research into hybrid manufacturing systems has lead to the integration of additive and subtractive processes within a single machine footprint such that both processes are leveraged during fabrication. The laser aided manufacturing process (LAMP) system provides a rapid prototyping and rapid manufacturing infrastructure for research and education. The LAMP system creates fully dense, metallic parts and provides all the advantages of commercial laser metal deposition (LMD) systems. This hybrid system is a very competitive and economical approach to fabricating metallic structures. Hybrid manufacturing systems facilitate a sustainable and intelligent production model and offer flexibility of infrastructure to adapt with emergent technology, customization, and changing market needs. This paper summarizes the salient research activities and the findings of those activities related to the modeling and development of the hybrid manufacturing system. Our qualitative and quantitative modeling efforts, as well as the resultant system architecture are described. The approach and strategies utilized in this research coalesce to facilitate an interdisciplinary approach to the development a hybrid manufacturing system to produce metal parts that are not only functional but also processed to the final desired surface-finished and tolerance. Furthermore, the approach to hybrid system modeling and development can assist in general with integrated manufacturing systems.
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Huang, Wenzhen, Jijun Lin, Zhenyu Kong und Dariusz Ceglarek. „Stream-of-Variation (SOVA) Modeling II: A Generic 3D Variation Model for Rigid Body Assembly in Multi Station Assembly Processes“. In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-13909.
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A 3D rigid assembly modeling technique is developed for stream of variation analysis (SOVA) in multi-station processes. An assembly process is modeled as a spatial indexed state transition dynamic system. The model takes into account product and process factors such as: part-to-fixture, part-to-part and inter-station interactions, which represent the influences coming from both tooling errors and part errors. The incorporation of the virtual fixture concept [14] and inter-station interaction leads to the generic, unified SOVA model formulation. An automatic model generation technique is also developed for surmounting difficulties in modeling based on first principles. It enhances the applicability in modeling complex assemblies. The developed SOVA methodology outperforms the current simulation based techniques in computation efficiency, not only in forward analysis of complex assembly systems (tolerance analysis, sensitivity analysis), but it is also more powerful in backward analysis (tolerance synthesis and dimensional fault diagnosis). The model is validated using industrial case studies and series of simulations conducted using standardized industrial software (3DCS).
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Jangha, Sundiata K., und David W. Rosen. „EMEDS: A System to Determine Ejection Layout for Rapid-Tooled Injection Molds“. In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/cie-48193.
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One of the main issues in injection molding is the amount of time required to design and fabricate a mold once a part representation has been created. Rapid tooling methods, the usage of rapid prototyping methods to fabricate molds, have been developed to speed up mold fabrication, but mold design time remains a bottleneck. The design of ejection mechanisms for rapid tools is investigated in this paper. By eliminating elements from a mold that are specific to the molded part, mold design time can be reduced. For instance, the use of a standardized ejector plate with an array of pre-drilled holes significantly reduces part specific elements from the ejector mechanism. The EMEDS system, Ejection Mechanism Design Synthesis, was developed to facilitate the rapid design and incorporation of ejection into rapid tools with standardized ejector plates. Problem formulations and solution algorithms will be presented for the two main elements of EMEDS, the Pin Composer and Pin Locator. In support of EMEDS, an analytical model of ejection force was developed and will be presented here. Application of the EMEDS system to an example illustrates the design of an ejection mechanism for an industrial part.
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Echave, Javier, und Jami J. Shah. „Automatic Set-up and Fixture Planning for 3-Axis Milling“. In ASME 1999 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/detc99/dac-8571.
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Abstract This paper presents a pragmatic approach for automating set-up and fixture planning for 3-axis machining on CNC machines. Although the larger project encompasses automation and integration of all aspects of machining feature recognition, tolerance charting, high level (macro) planning, and detailed (micro) planning, this paper focuses only on set-up and fixture planning. Only standard modular fixtures are considered (tooling plates, rest pads, pin locators, strap clamps, and vises). In set-up planning we consider not only similar tool approach directions and processes for feature grouping, but also spatial constraints in machines, tools and fixtures. The approach presented here for fixture planning combines elements of both geometric reasoning and feature-based approaches. Set-ups are automatically planned based on the volumes to be removed in each workpiece orientation and the instantaneous state of the stock is tracked at the different stages of the proposed plan. Also verification techniques use feature information to estimate possible collisions between fixtures and volumes to be removed. The fixture planning algorithm is based on both the 3-2-1 locating principle and Vise clamping methods. The overall system architecture is modular, allowing the possibility of selective use of the modules by other developers of CAPP systems. The process planning system exploits the capabilities of commercial toolkits for geometric modeling (ACIS) and NC toolpath generation (STRATA).
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Devaprasad, Jim. „A Low Cost Robotics Machine Tending System“. In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-32019.
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Robotics is often viewed as a complex high-tech area that can be applied to improve productivity but only at a high cost to the organization. Contrary to this frame of mind, robotic applications can be implemented by average-sized organizations at a relatively low cost with low complexity. As part of the senior design project activities at Lake Superior State University, an automotive parts supplier submitted a project involving the redesign of a manual machine tending process. The company, which manufactures tie rods, has a process where an operator tediously loads and unloads tie rods to and from two machines in a dirty and dangerous environment. A flexible system to automate the machine loading process was considered and will be proposed. The flexible automated system will include a parts feeder for orienting the tie rods into a single position and a robot for picking and placing the tie rods into the machines. The end-of-arm tooling for the robot and the parts feeder will be designed to handle different varieties of tie rods. The automated system flexibility will allow the robot, which will be mounted on a track, to be conveniently re-positioned away from the machines when needed. By doing so, the machines can be run in the manual mode for unusual tie rod part varieties using an operator to tend the machines. In addition to presenting an uncomplicated robotics solution to the problem, this paper will show that by incorporating the proposed automation ideas, the hardware costs to implement the flexible robotics system will be under $100,000. This is a relatively low cost for an average-sized company, considering automation.
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Sutaria, M., D. Joshi, M. Jagdishwar und B. Ravi. „Automatic Optimization of Casting Feeders Using Feed-Paths Generated by VEM“. In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-65074.
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Feeding or risering system of a casting significantly affects the internal quality as well as the yield of a casting. It is however, quite difficult to predict the effect of a particular set of feeder design parameters (such as location, shape and dimensions) on casting quality. Hence feeding system design is iterative in practice, involving tooling modification, foundry trials and inspection. Computer simulation can save material and production resources involved in foundry trials, but requires a higher level of human effort for preparing the inputs and interpreting the results properly. In this work, we have evolved a new approach to evaluate and optimize casting feeding system design using feed-paths. The feed-paths are computed by Vector Element Method (VEM). It is possible to automatically track the direction of the feed metal flow from a given point, and to check if a feeder is effective. The convergence of the feed-paths provides a clear indication of directional solidification and location of shrinkage defects. Further, this takes a fraction of the time taken by FEM-based simulation, making it more useful for practical application. The proposed approach is demonstrated by automatically optimizing the feeder size for a benchmark casting, and validated by pouring and sectioning Al-alloy castings made in sand molds.