Увійти

Готові списки джерел за темами / Press drawing / Статті в журналах

Статті в журналах з теми "Press drawing"

Щоб переглянути інші типи публікацій з цієї теми, перейдіть за посиланням: Press drawing.

Автор: Grafiati

Опубліковано: 7 липня 2024

Оновлено: 7 липня 2024

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями

Оберіть тип джерела:

Ознайомтеся з топ-50 статей у журналах для дослідження на тему "Press drawing".

Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.

Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.

Переглядайте статті в журналах для різних дисциплін та оформлюйте правильно вашу бібліографію.

1

Xu, Teng, Qin Xiang Xia, Sai Jun Zhang, Zhen Shi Li, and Wei Ping Ruan. "Influence of Slide Stroke Curves on Deep Drawing of Box Shaped Part." Advanced Materials Research 328-330 (September 2011): 695–99. http://dx.doi.org/10.4028/www.scientific.net/amr.328-330.695.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

In order to explore the influence of slide stroke curves on drawing process and solve the problems of springback and serious thickness thinning during forming, the deep drawing processes of box shaped part based on the conventional mechanical press and servo press were simulated. The springback and thickness variation of box shaped part by different slide stroke curves were obtained. It shows that comparing with the deep drawing with conventional mechanical press, the springback of drawn workpiece decreases by pressure-keeping drawing; the maximum thickness thinning ratio of drawn workpiece is smaller by staged drawing, and the distribution of workpiece thickness is more uniform.

2

Heo, Young Moo, Jong Deok Kim, and Yong Jun Jeon. "Study on Friction Characteristics According to Drawing Variables in Press Drawing Process." Advanced Materials Research 680 (April 2013): 440–45. http://dx.doi.org/10.4028/www.scientific.net/amr.680.440.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Friction is generated between a press tool and a material during the inflow of material in an automotive press drawing process. Currently, there is deficienttechnical information on such tool-material friction properties. This study is accordingly aimed to understand friction characteristics by investigating them from drawing variables in the press deep-drawing process for steel plates of 590MPa grade and above that are recently being applied for the reduction of weight and improvement of safety of automobiles. The drawing variables in this study are blank holder holding pressure, drawing velocity, and tool surface treatment, which are tested and applied for stamping analysis. The results showed that for holding pressure and drawing velocity, friction coefficient decreases as holding pressure and drawing velocity increases. In case of friction properties according to tool surface treatment, friction coefficient is lower in surface-treated tools compared to non-surface-treated tools, which verifies the need for surface treatment when fabricating press tools. In addition, this study ascertained the need to have a stamping analysis that considered actual drawing variables when analyzingforming by verifying the results of drawing simulations after applying the experimented friction coefficient in the stamping analysis.

3

Gao, Jun, Cheng Lin Zhang, Shu Xia Lin, and Li Qun Ruan. "Process Parameter Determination of AZ31B Sheet Forming under Mechanical Press." Applied Mechanics and Materials 229-231 (November 2012): 2493–96. http://dx.doi.org/10.4028/www.scientific.net/amm.229-231.2493.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

At present, most studies on magnesium alloy sheet forming were carried under hydraulic press. In this paper, differential temperature forming of AZ31B magnesium alloy sheet under the J23-63 mechanical press were carried out. Through an orthogonal test about studying the influence of process parameters on AZ31B magnesium alloy sheet drawing, some conclusions were drawn, which are: the influence of drawing temperature on sheet forming is the biggest, then the drawing die clearance, and lubricant respectively; the optimal process parameters combination is drawing temperature of 310°C, 1.10t die clearance, and 8mm die radius in this test.

4

Lin, Shu Xia, Cheng Lin Zhang, Jun Gao, and Li Qun Ruan. "Influence of Drawing Temperature and Die Clearance on Wall Thickness of AZ31B Deep Drawn Part." Applied Mechanics and Materials 229-231 (November 2012): 2415–18. http://dx.doi.org/10.4028/www.scientific.net/amm.229-231.2415.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

In this paper, AZ31B drawing test was carried out under the mechanical press with crank-slide mechanism. The influence of drawing temperature and drawing clearance on the wall thickness of AZ31B drawn parts was studied through testing. Some conclusions were drawn, which are: with the increase of drawing temperature, minimum wall thickness ( Tmin ) and maximum wall thickness ( Tmax ) of AZ31B drawn parts substantially decreased; with the increase of drawing clearance, Tmin and Tmax of AZ31B drawn parts increased.

5

Schneckloth, Sara. "Drawing Thought: How Drawing Helps Us Observe, Discover, and Invent, Andrea Kantrowitz (2022)." Drawing: Research, Theory, Practice 8, no. 2 (October 1, 2023): 311–15. http://dx.doi.org/10.1386/drtp_00123_5.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

6

Tomasch, M., W. Ecker, R. Kaiser, and T. Antretter. "Deep drawing of press hardening steels." Journal of Physics: Conference Series 1063 (July 2018): 012038. http://dx.doi.org/10.1088/1742-6596/1063/1/012038.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

7

Xia, Qin Xiang, Teng Xu, Zhen Shi Li, and Wei Ping Ruan. "Influence of Slide Stroke Curves on Forming Quality of Box Shaped Part during Deep Drawing." Advanced Materials Research 562-564 (August 2012): 1177–81. http://dx.doi.org/10.4028/www.scientific.net/amr.562-564.1177.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

To explore the influence of slide stroke curves on deep drawing and solve the problems of cracking and wrinkling during drawing, the deep drawing processes of box shaped part with the conventional mechanical press and servo press were simulated, respectively. The variation rules of cracking and wrinkling for box shaped part by different slide stroke curves were obtained. It shows that the qualified parts can be obtained more easily when drawing with servo presses by decreasing the rotational speed of servo motor at the forming stage due to its variability; drawing cycle can be shorten effectively by adjusting the variable displacement-velocity curves of servo press.

8

Watanabe, Akihiro, Yuji Kotani, Hisaki Watari, and Takehiro Shimizu. "Evaluation of Press Formability Using Servo Die Cushion in Deep Drawing." Materials Science Forum 654-656 (June 2010): 322–25. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.322.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Manufacturing process using servo press machines have been highlighted in car manufacturers and other industries in Japan. It is necessary to establish an appropriate press working conditions for manufacturing highly accurate products with great extra value. Our aim is to investigate into effects of variable BHF (blank holding force) on press formability, comparing to using a conventional press machine. In this study, FEM analyses of deep drawing process using a variable BHF system has been conducted to demonstrate the effectiveness of a servo die cushion on formability. According to experimental results obtained with a servo die cushion, it is found that maximum load subjected to dies was reduced by 11.8 %, when using a servo press with a servo die cushion comparing to a conventional press.

9

Idiar, Idiar, and Sugianto Sugianto. "Analisa Proses Drawing Pada Pembentukan Asbak Dengan Kuping Berbentuk Alur." Manutech : Jurnal Teknologi Manufaktur 9, no. 02 (May 15, 2019): 84–88. http://dx.doi.org/10.33504/manutech.v9i02.51.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

The design of the press tool is one of the practice courses that teach the skill in designing tool forming and cutting the product from the plate. The quality of the design is determined by the ability to apply the design procedure. Competence is widely applied in the design of drawing prints with a certain level of product complexity. Practice activity of designing drawing drawing of students of Engineering Design Program of Mechanical Polytechnic of State of Bangka Belitung done conventionally, where only using drawing table or computerized depiction software then printed on drawing paper. This results in frequent errors in student design drawings. To overcome these problems required drawing prints that can form a specific product such as ashtrays, with the aim of producing a construction drawing print that can be applied and utilized in the teaching of press tool design. The method of making this tool consists of data collection, concept making, tool design, machining & testing. Based on the results of trials that have been done, carried out on 10 blank by using a lubricant in the form of vegetable oil. Of the 10 experiments the formation showed that the central pool of ashtrays can be perfectly formed, while 4 pieces of the grooves on the ear of the ashtray have not been formed well where there are still folds or curves that are not regular.

10

Jalanesh, Masood, Andre Miller, Marco Hehmann, André Spiekermeier, Sven Hübner, and Bernd Arno Behrens. "Process-Integrated Projection Welding during Deep Drawing." Advanced Materials Research 1140 (August 2016): 59–66. http://dx.doi.org/10.4028/www.scientific.net/amr.1140.59.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Within deep drawing processes, welding represents an innovative approach to optimising the branched process chains which entail uneconomic process steps in production and transport lines. Previous applications of thermal joining processes in presses required a downstream process step for joining standardised functional elements such as nuts. Within the scope of this publication, a weldable tool system is presented which offers the possibility of welding a deep drawing component to an automatically added non-standardised holder in a single-step deep drawing process without additional dwell time in the bottom dead point. In order to realise this innovative tool system, the interdependencies of deep drawing and projection welding are considered to enable a splash-free welding on flat and curved component areas, such as the rounding of a punch edge. Based on experimental research a special concept for the tool kinematics of welding electronics is drawn up which is based on press kinematics. In addition, this article also deals with electric insulation and the forming forces which have an impact on the welding electrodes integrated into the active surface of the forming tool. Thus, the joining process becomes independent from the type of press.

11

Igarashi, Tatsuki, Yukihiro Ito, Wataru Natsu, and Toshihiko Kuwabara. "Simulation of Ring Blank Drawing by Finite Element Method." Advanced Materials Research 479-481 (February 2012): 102–10. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.102.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Ring-shaped oil seals used in automobiles are usually manufactured by the press drawing and the press blanking considering the shape and the use application. In this process of manufacturing, the material availability is quite low because the central region part is cut from the product and becomes the waste material. We propose the forming method by the press drawing using a ring-shaped blank for the metallic part of the oil seal in order to improve the material availability and reduce the number of processes. In this research, the forming accuracy using the ring-shaped blank was investigated by the forming simulation. As the result, when the knockout was fixed in order to generate the sufficient bottoming by the punch, it was found that the bottom part can be formed flatly and the angle part can be formed almost right. Furthermore, it was found that the inside diameter of the formed product is proportional to the inside diameter of the blank except the case when the bottom part of the formed product is small. Hence, the required inside diameter of the ring-shaped blank can be calculated with the proportional relationship.

12

Singh, Swadesh Kumar, and Amit Kumar Gupta. "Comparison of Ironing in Warm and Hydromechanical Deep Drawing of Low Carbon Steel." Materials Science Forum 773-774 (November 2013): 203–10. http://dx.doi.org/10.4028/www.scientific.net/msf.773-774.203.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Deep drawing involves conversion of flat thin sheet metal blanks into parts of desired shape. In the present investigation, the process parameters of warm forming are compared with those of Hydromechanical deep drawing. Warm deep drawing process of circular blanks in Ironing stage is investigated using a 20 T hydraulic press. Hydro-mechanical deep drawing is a process for producing cup shaped components with the assistance of a pressurized fluid. There is an increase in the drawability of low Carbon steel by increasing the oil gap (gap between punch and die) but to make exactly cylindrical shape, the cup is subjected to ironing in the later part of drawing operation. Thickness distribution which describes the quality of the drawn cup is compared in both warm and Hydromechanical deep drawing using experiments and finite element simulations. Keywords- Warm forming,Hydromechanical, deep drawing, Drawability.

13

Seo, Hyung Yoon, Chul Kyu Jin, and Chung Gil Kang. "Effect on Blank Holding Force on Blank Deformation at Direct and Indirect Hot Deep Drawings of Boron Steel Sheets." Metals 8, no. 8 (July 25, 2018): 574. http://dx.doi.org/10.3390/met8080574.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

This study involves performing direct and indirect hot press forming on ultra-high-strength steel (UHSS) boron steel sheets to determine formability. The indirect hot press process is performed as a cold deep drawing process, while the direct hot press process is performed as a hot deep drawing process. The initial blank temperature and the blank holding force are set as parameters to evaluate the performance of the direct and indirect deep drawing processes. The values of punch load and forming depth curve were obtained in the experiment. In addition, the hardness and microstructure of the boron steel sheets are examined to evaluate the mechanical properties of the material. The forming depth, maximum punch load, thickness, and thinning rate according to blank holding force were examined. The result shows that a larger blank holding force has a more significant effect on the variation of the thickness and thinning rate of the samples during the drawing process. Furthermore, the thinning rate of the deep drawing part in with and without fracture boundary was respectively examined.

14

Li, Hui. "Hybrid-driven nine-bar press for precision drawing." Chinese Journal of Mechanical Engineering (English Edition) 17, supp (2004): 197. http://dx.doi.org/10.3901/cjme.2004.supp.197.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

15

Soong, Ren-Chung. "ON THE NEW MECHANICAL PRESS WITH A PLANETARY GEAR TRAIN." Transactions of the Canadian Society for Mechanical Engineering 40, no. 1 (March 2016): 45–58. http://dx.doi.org/10.1139/tcsme-2016-0004.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

A new 1-DOF mechanical press with a geared eight-bar linkage mechanism is presented. The proposed press can generate the required kinematic and dynamic performance for drawing, stamping, deep drawing, and precision cutting processes by simply adjusting the offset of the ram. The press consists of an elementary planetary gear train with a pair of planet gears, a slider-crank mechanism, and a slider-crank mechanism with a variable-length crank. The configuration and a solid model are described, and a kinematic analysis, dynamic analysis, and optimized dimensional synthesis of the press are discussed. Examples are provided to verify the feasibility and effectiveness of the design methodology. The proposed press could lead to more flexible and cost-effective applications.

16

Watanabe, Akihiro, Y. Kotani, K. Nishimura, Hisaki Watari, and Takanori Yamazaki. "Effects of Elastic Behaviour of Dies and Servo Press Machine on Deep Drawing Process." Advanced Materials Research 89-91 (January 2010): 621–26. http://dx.doi.org/10.4028/www.scientific.net/amr.89-91.621.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Characteristic features of elastic deformation of dies and presses during deep drawing were measured to examine the effects of elastic deformation of the press and dies on product accuracy. Strains were measured on the press including dies, a slide and a bolster of a servo press. A strain magnitude of 63 ×10-6 was obtained when the slide position was at the lowest point. Two slide motions of the servo press were selected to determine appropriate manufacturing conditions. An elastic deformation analysis of the die structure was then performed by CAD simulation. To find an appropriate die structure model, the vertical displacement of the die structure in the CAD simulation was compared to the experiment results. It was found that the vertical displacement of the die structure was 0.147 [mm] at the top surface of the die when considering elastic deformation of the die structure as well as the bolster of the servo press.

17

Chen, Tsung-Chia, Shi-Xun Chen, and Cheng-Chi Wang. "Punch Motion Curve in the Extrusion–Drawing Process to Obtain Circular Cups." Machines 10, no. 8 (August 1, 2022): 638. http://dx.doi.org/10.3390/machines10080638.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Servo press technology is gaining attention because its punch motion curve offers greater formability than that of a conventional stamping press. This study investigated the effect of punch motion curves on the circular cup extrusion–drawing process. Various punch motion curves were analyzed, and the optimal curve for application was determined. Both the extrusion–drawing process and spring back of U-shaped sheet metal were investigated. In the circular cup extrusion–drawing process, the punch motion curve of a conventional stamping press (Case A) and three punch motion curves of a servo press (Cases B–D, the strokes of which differed from that of Case A by 0.5, 1.5, and 2.5 mm, respectively) were compared, particularly regarding the effect of the coefficient of friction on the circular cup extrusion–drawing process. The simulation analysis was performed using the software program DEFORM. A set of simulated parameters were compared with experimental results. The formability, cup shape, cup height, cup thickness, extrusion force–displacement curve, stress distribution, and strain distribution were analyzed for the design of the die required. Additionally, experimental and simulation results were compared to determine the reliability and precision of the DEFORM simulations. The results indicated that the conventional punch motion curve resulted in a shorter cup, greater stress, greater strain, and the need for a greater extrusion force. By contrast, the servo punch motion curves resulted in taller cups, less stress, and less strain. The findings can serve as a reference for the development of servo presses.

18

Soejima, Tomoki, Ming Xu Yang, Zhi Gang Wang, and Yasuharu Yoshikawa. "Tribological Peculiarity of Galling Position in Square Cup Drawing." Key Engineering Materials 535-536 (January 2013): 334–37. http://dx.doi.org/10.4028/www.scientific.net/kem.535-536.334.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

The high tensile steel sheet attracts attention in recent years. Galling occurs easily in the press forming processes of the high tensile steel sheet because of the high contact pressure. However, the galling behavior can’t be predicted in the forming process yet. The object of this study is to clarify the galling mechanism and develop a prediction method of galling behavior in press forming. Experiments were carried out to investigate the galling behavior in the square cup drawing of a high tensile strength steel sheet. On the die surface, galling occurs at the bottom of the boundary between the straight and corner. On the drawn cup galling starts at the top of the same boundary. The variations of contact pressure, sliding distance and temperature were investigated by using FEM. It was found that galling occurs on the sheet surface position having the history of maximum temperature and at the moment just before sliding out from the die.

19

LeRue, David. "Researching the Teaching of Drawing, Raymond M. Klein (ed.) (2022)." International Journal of Education Through Art 19, no. 3 (September 1, 2023): 425–27. http://dx.doi.org/10.1386/eta_00144_5.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

20

Li, Cheng-Ho, and Pei-Lum Tso. "C-5 APPLYING A SERVO PRESS ON DRAWING PROCESS WITH CONSIDERING FORMABILITY LIMITS(Session: Forming I)." Proceedings of the Asian Symposium on Materials and Processing 2006 (2006): 52. http://dx.doi.org/10.1299/jsmeasmp.2006.52.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

21

Mao, Xian Chang, and Si Li. "Development of Metal Sheets Hydraulic Deep Drawing Tooling." Advanced Materials Research 706-708 (June 2013): 1286–89. http://dx.doi.org/10.4028/www.scientific.net/amr.706-708.1286.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

A simple and practical hydraulic deep drawing test tooling is developed to investigate metal sheets formability. It is composed of two parts including the forming die and hydraulic control system. Experiments with varied material and dimensional sheets of hydraulic deep drawing and mechanical deep drawing can be fulfilled by the tooling on a Single-Action Press without complicate external hydraulic system, blank holder system and oriented system for punch, respectively. The tooling is testified to be simply, facile and reliable, which can perfectly perform the sheets forming in hydraulic deep drawing, and the formability of sheets was improved effectively with hydraulic deep drawing.

22

Carradò, Adele, Olga Sokolova, Gerhard Ziegmann, and Heinz Palkowski. "Press Joining Rolling Process for Hybrid Systems." Key Engineering Materials 425 (January 2010): 271–81. http://dx.doi.org/10.4028/www.scientific.net/kem.425.271.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

The press joining rolling process used for the production of metal/polymer/metal systems is introduced. In the first step three-layer sandwich sheet, 316L/polypropylene- polyethylene/316L (316L/PP-PE/316L) with and without local reinforcement, were processed by roll bonding at approx. 250°C of two steel sheets with a pre-rolled PP-PE - core sheet. Mechanical and forming behaviour of the parts had been investigated by tensile, bending and deep drawing tests. It could be shown that for moderate drawing depths deep drawing behaviour is close to the one of the mono-material.

23

Dong, Weian, Chunxu Li, Xiaokui Xu, and Shaoxiang Li. "Pallet Stamping Die Design." Journal of Physics: Conference Series 2402, no. 1 (December 1, 2022): 012015. http://dx.doi.org/10.1088/1742-6596/2402/1/012015.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Abstract Nowadays, the level of stamping dies in the world has been greatly improved, and stamping technology has also developed greatly. Based on the analysis of the pallet parts, it is determined that the required processes are punching and blanking. The compound dying for punching and blanking was chosen for processing after the processing method was examined. Specific design process: analyze the material used for the part, calculate the required punching force, and select the required press according to the punching force, the closing height of the die, and the size of the die handle hole. The parts required by the die, such as convex and concave die, stripper plate, fixed plate, and other components, should also be designed so that the processing of the parts can be completed after the assembly is completed. In the design process, CAD drawing software, three-dimensional drawing software, etc., can be used to complete the drawing of two-dimensional and three-dimensional drawings of parts, improve the efficiency of our drawing, and can also quickly solve problems existing in the drawing, which makes the design process simpler.

24

Ha, J., A. Breunig, J. Fones, F. Hoppe, Y. P. Korkolis, P. Groche, and B. L. Kinsey. "AA1100-O cylindrical cup-drawing using 3D servo-press." IOP Conference Series: Materials Science and Engineering 651 (November 25, 2019): 012094. http://dx.doi.org/10.1088/1757-899x/651/1/012094.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

25

Fallahiarezoodar, Ali, Long Ju, and Taylan Altan. "Use of FE Simulation and Servo Press Capabilities in Forming of AHSS and Aluminum Alloys." Key Engineering Materials 639 (March 2015): 13–20. http://dx.doi.org/10.4028/www.scientific.net/kem.639.13.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Production of light weight and crash resistant vehicles require extensive use of AHSS (DP,TRIP,TWIP) and Al alloys to form complex shapes. This paper discusses practical determination of material properties and selection of lubricants for forming AHSS using a die set, designed for deep drawing. Tests were conducted in a 300 ton servo press. Thinning at the critical area of the formed part were measured and compared with FE simulation. Prediction of temperatures in deep drawing of selected DP steels and Al alloys in servo press is also discussed.

26

Lin, Shu Xia, Jun Gao, Jan Hong Gong, and Cheng Lin Zhang. "Drawing Behaviors of ME20 and ZE10 Sheets under Mechanical Press." Applied Mechanics and Materials 229-231 (November 2012): 2497–500. http://dx.doi.org/10.4028/www.scientific.net/amm.229-231.2497.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

The drawability of ME20 and ZE10 magnesium alloys sheets under mechanical press were investigated. The deep drawing experiment was tried out based on research production of AZ31 sheet forming. The forming temperature range of two sheets was obtained, and the ZE10 magnesium alloys sheets were formed well at lower temperature than ME20 alloy. The microstructures of ME20 consisted of fine grains and precipitates did not change evidently during the drawing process. The equiaxed grains of ZE10 included a great deal of twinning were refined obviously. The drawability was related with alloy compositions and grain size. The fractures were observed through SEM to probe the fracture mechanism of two sheets.

27

Chang, Qun Feng, Ying Hong Peng, Da Yong Li, and Xiao Qin Zeng. "Experimental Research on Warm Deep Drawing of Magnesium Alloy Sheet by Variable Blank Holder Force Control." Materials Science Forum 546-549 (May 2007): 285–88. http://dx.doi.org/10.4028/www.scientific.net/msf.546-549.285.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

A process of warm deep drawing of magnesium alloy with variable blank holder force has been presented in this study. A hydraulic press that can realize adjustable blank holder forces was developed and its working principle and control system introduced. A warm deep drawing mould was fixed and warm deep drawing experiments are conducted on the hydraulic press. Different variation schemes of the blank holder force with the stroke of the punch was tested, and compared with experiment results. The experimental results show that adopting the variable blank holder force technique can remarkably improve the forming performance and decrease the reduction ratio of thickness from 15.21% to 12.35%. It is further demonstrated that the suitable blank holder force variation scheme is an inverted V curve with the punch stroke.

28

Liu, Ying Chun. "Aluminum Parts Based on Solidworks Edge Shape Analysis and Mold Design." Advanced Materials Research 971-973 (June 2014): 11–16. http://dx.doi.org/10.4028/www.scientific.net/amr.971-973.11.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

1060 pure aluminium material parts after blanking, deep drawing, flanging with crimping mold edge forming, through process analysis and calculation, determine the blank, bending force, and choose to press. Mould structure analysis, and carries on the edge of major parts of the mold design, mold assembly drawing.

29

Harada, Yasunori, Hiroto Ono, and Yuki Nishikubo. "Deep Drawability of Ti/Steel/Ti Laminated Sheets." Materials Science Forum 920 (April 2018): 64–69. http://dx.doi.org/10.4028/www.scientific.net/msf.920.64.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Cladding is the bonding together of dissimilar metals. One of clad products is the titanium clad steel sheet. It is effective to cover with pure titanium sheet to improve the corrosion resistance of the steel sheet. Titanium clad steel sheets are often achieved by rolling sheets together under high pressure. In the current study, the blank comprising three laminar non-bonded sheets, such as the titanium/steel/titanium sheet, is arranged in the die. The formability of pure titanium clad sheet by multistage deep drawing was investigated to enhance corrosion resistance of steel cup. In the experiment, the blanks were pure titanium sheets JIS1-TP270, JIS2-TP340, ultralow-carbon steel SPCC, and stainless steel SUS316L. The initial thickness of the sheet was 0.2 to 0.5 mm in thickness. The blank diameter was 70 mm. The blanks are merely adjacent sheet; however, not joined with each other. In the deep drawing process, a hydraulic press was used in the experiment and the forming speed for the press was about 10 mm/min. The lubricant used was the solid powders of molybdenum disulfide. For the prevention, pure titanium blank was treated by oxide coating. The conditions of heat treatment were annealed at 973 K for 3.6 ks to 7.2 ks. By oxide coating, the titanium sheet has sufficient ability in preventing the seizure in multistage deep drawing. The drawn cups of the three-layer laminated sheet were formed. The seizure did not cause. The oxidatively-treated titanium sheets have sufficient ability in preventing the seizure. In addition, the clad cups until 6th stage were formed by multistage deep drawing. Long clad cups were successfully formed in multistage deep drawing process.

30

Sangai, Shreya. "Comics and the Body: Drawing, Reading, and Vulnerability, Eszter Szép (2020)." Studies in Comics 12, no. 1 (November 1, 2021): 159–62. http://dx.doi.org/10.1386/stic_00059_5.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

31

Wu, Shibao, Jing Gao, Wenbo Li, Jia Ma, and Heng Wang. "Finite element analysis on first deep drawing process of combustion calotte made of high temperature alloy GH536." Journal of Physics: Conference Series 2539, no. 1 (July 1, 2023): 012064. http://dx.doi.org/10.1088/1742-6596/2539/1/012064.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Abstract In order to investigate the characteristics of the deep drawing process of a combustion’s calotte which was made of the high temperature alloy GH536, a finite element model which could simulate the first deep drawing process of this calotte was presented and change features of some key parameters in this deep drawing process were solved by ABAQUS software. Finite element analysis results revealed that ruptures were easy to occur and a press machine with larger tonnage was needed during this deep drawing process.

32

Burlat, M., and A. Maillard. "Understanding the influence of servo-press kinematics on a sheet metal forming process using a simulation-based approach." IOP Conference Series: Materials Science and Engineering 1238, no. 1 (May 1, 2022): 012077. http://dx.doi.org/10.1088/1757-899x/1238/1/012077.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Abstract The capabilities offered by the servo-presses are not fully exploited by the sheet metal forming companies due to the lack of knowledge of their influence on the forming processes. Indeed, the control of the beneficial effects and the full use of servo-press features, such as the programmable kinematics, are increasingly becoming concerns for the companies having acquired that type of press. In this context, the finite element simulation is undoubtedly an approach to evaluate the potential gains generated by those presses and to validate the servo-press kinematics. This study is an attempt to gain insight into the impact of servo-press kinematics on a sheet metal forming feasibility. The forming experiments presented in this study have been carried out by CETIM for a X2CrNi18-09 stainless steel. The numerical simulation has been performed with AutoForm software that enables the user to rapidly and accurately design and simulate the sheet metal forming processes, including stamping operations. All parameters influencing the stamping operation in a servo-press can be considered. They include, for example, press kinematics, sheet temperature variation during the forming process and of course material mechanical properties. The hardening curves of the studied stainless steel at different strain rates and different temperatures have been taken into account. The simulation has been carried out for two servo-press kinematics: sinusoidal and soft-touch. The feasibility criterion, i.e. the part drawing depth, has been defined to match the experimental results. The numerical simulation with AutoForm made it possible to highlight the thermal effects, in particular, the maximum temperatures reached during the drawing operation. The simulation results analysis allowed the user to optimize the motion curve of the press in order to have a minimum cycle time while respecting the lowest possible temperature the sheet might reach during a drawing operation. Thanks to this study, the sheet metal forming companies will therefore benefit from this technology to develop and optimize the servo-presses usage.

33

SHINOMIYA, Naruaki, and Nobuhiko SHIRAKAWA. "Estimation of Numerical Control Servo Press Motion for Deep Drawing." Journal of the Japan Society for Technology of Plasticity 54, no. 629 (2013): 542–46. http://dx.doi.org/10.9773/sosei.54.542.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

34

Mitsi, S., I. Tsiafis, and K. D. Bouzakis. "Dynamic analysis of six-bar mechanical press for deep drawing." IOP Conference Series: Materials Science and Engineering 174 (February 2017): 012006. http://dx.doi.org/10.1088/1757-899x/174/1/012006.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

35

Qingyu, Song, Guo Baofeng, and Li Jian. "Drawing motion profile planning and optimizing for heavy servo press." International Journal of Advanced Manufacturing Technology 69, no. 9-12 (August 21, 2013): 2819–31. http://dx.doi.org/10.1007/s00170-013-5246-9.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

36

Webb, Joel C. "Drawing a Glorious Past, Picturing an Uncertain Future." European History Quarterly 47, no. 2 (April 2017): 257–83. http://dx.doi.org/10.1177/0265691417690996.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

This article uses turn-of-the-century editorial cartoons and other imagery mass produced by the Spanish press to examine a period in Spanish history when the momentum of a developing national identity collided with the challenges of war and decolonization. Through a detailed exploration of the iconography embedded in caricatures published in the pages of a politically diverse selection of turn-of-the-century Spanish publications, this article seeks to demonstrate that the fear of an uncertain future combined with the disaster of a collapsing empire were projected onto images of the enemy which reflect a submerged anxiety over the threat of an ascendant and vulgar modernity. This anxiety manifested itself in dueling metaphors that presented the essence of Spanishness as a bulwark against industrialization, modernization, and liberalization.

37

Li, Xi Ning, Cheng Yu Jiang, and Zhong Qi Wang. "Study for Rectangular Box Drawing of Segmented Variable Blank Holder Force." Materials Science Forum 628-629 (August 2009): 523–28. http://dx.doi.org/10.4028/www.scientific.net/msf.628-629.523.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

The sheet forming simulation of rectangular box was conducted by finite element method (FEM), the forming process experiment, further, was investigated, so as to understand the effect of the form of blank holder and the manner of blank holder force (BHF) on the complicated parts forming. In my study, a kind of low carbon steel was investigated, and its mechanical properties were obtained by simple tension tests. The outermost contour of the blank shape was determined by “one step method”. Furthermore, the finite element model was constructed by ANSYS parametric design language (APDL), which has characteristic of grid meshing by Belytschko-Tsay (BT) shell element, applying anisotropic constitutive equation of Barlat yield criterion, dealing contact by penalty function method and using adaptive mesh algorithm in the simulation process. Then the forming process simulation of rectangular box with segmented variable BHF was conducted. On the basis of analyzing the work principle and technical parameters of XP3CEF-100 hydraulic press, the rectangular box drawing system of segmented VBHF was established, which was made of hydraulic press, rectangular box drawing die of segmented blank holder, hydraulic part of blank holder and control part. Finally the low carbon steel forming tests were fulfilled by the rectangular box drawing system on the basis of the simulation result.

38

Han, Jiang, Hai Jin Huang, Lian Xia, and Hua Zhai. "Fault Diagnosis Method for Automotive Panel Processing Equipment Hydraulic System Based on Rough Sets - Neural Networks." Key Engineering Materials 522 (August 2012): 546–51. http://dx.doi.org/10.4028/www.scientific.net/kem.522.546.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

The application, which the intelligence is used in the fault diagnosis, is the main direction of research currently, especially in the fault diagnosis of large mechanical equipment. In order to improve hydraulic system failure diagnosis of high-speed deep drawing hydraulic press, reduce the efficiency and accuracy of difficulty diagnostic staff. By using rough sets theory combining neural network and the method of large NC hydraulic press, hydraulic system fault diagnosis of diagnosis. This paper established based on rough set - neural network fault diagnosis model, and the following hydraulic cushion hydraulic system as an example, the diagnosis in establishing the fault table based on the rough set theory to fault table attribute reduction and generating rules, will rule input to the BP neural network was trained learning. Get in neural network after the test data repository and simulation. Test results show that the method for the diagnosis of high-speed deep drawing hydraulic press hydraulic system fault is effective.

39

Sekeres, Thiago, Cleber Fernandes, José Carlos Santos, Eduardo Nunes, and Ronald Lesley Plaut. "FEM Modelling and Press Signature Evolution of a Typical Car Stamping." Materials Science Forum 704-705 (December 2011): 717–27. http://dx.doi.org/10.4028/www.scientific.net/msf.704-705.717.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

A typical car stamping is analyzed in terms of FEM and its press signature is evaluated in detail. Microstructural, crystallographic texture and surface roughness evolution are studied in conjuntion with press performance. Careful press signature calibration is discussed in order to point out relevant aspects. Deep drawing steels are analyzed in terms of their evolution in microstructure and texture and path-related to the FLD (Forming Limit Diagram). 3D-Surface roughness is tentatively evaluated and related to the steel stampability.

40

Denison, Jim, and Pirkko Markula. "The Press Conference as a Performance: Representing Haile Gebrselassie." Sociology of Sport Journal 22, no. 3 (September 2005): 310–34. http://dx.doi.org/10.1123/ssj.22.3.310.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Pre-event sports press conferences remain largely unexamined by sport sociologists. In this article we present a thick description (Geertz, 1973) of a recent press conference staged on behalf of the Ethiopian long-distance runner, Haile Gebrselassie. We first discuss the workings of whiteness in relation to the ways in which a black Ethiopian distance runner is imagined by Western sports journalists. Then, drawing on the work of a number of performance theorists, we conceptualize Gebrselassie’s press conference as a performance. Finally, we interpret the meaning of Gebrselassie’s press conference using the semiotics of Roland Barthes (1977).

41

Stutz, Lennart, Julian Quade, Michael Dahms, Dietmar Letzig, and Karl Ulrich Kainer. "Achievements in Deep Drawing of Magnesium Alloy Sheets." Materials Science Forum 690 (June 2011): 302–5. http://dx.doi.org/10.4028/www.scientific.net/msf.690.302.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Magnesium alloy sheets bear significant potential in replacing conventional materials such as aluminium and steels in ultra lightweight designs. High specific strength and stiffness, combined with the lowest density of all structural metals make magnesium alloy sheets candidates to face the challenges of reducing vessel weight in the transportation industry and thus, green house gas emissions. For forming components from sheet metal, deep drawing is a well established and commonly applied process. Due to the limited formability of magnesium sheets at room temperature, deep drawing processes have to be conducted at elevated temperatures. In the present study, hot deep drawing experiments on an industrial scale hydraulic press were successfully conducted. Forming was done at moderately low temperatures from 150°C to 250°C. Sheets of the magnesium alloy AZ31B (Mg-3Al-1Zn-Mn) were drawn to symmetrical cups according to Swift. For AZ31, distinct basal type textures are formed during hot rolling. The influence of texture on earing is displayed. The microstructural evolution of the material is dominated by the formation of twins and dynamic recrystallisation. By optimising the process, a drawing ratio of 2.9 was achieved for AZ31 sheet, outperforming conventional materials at ambient temperature.

42

Ohara, M., Yorinobu Takigawa, and Kenji Higashi. "Development of Surface Treatment in Industrial Scale for Components with Metallic Luster on AZ31 Sheets." Materials Science Forum 610-613 (January 2009): 999–1002. http://dx.doi.org/10.4028/www.scientific.net/msf.610-613.999.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

We have developed a new surface treatment, Mgbright, which produces a luster on AZ31 magnesium alloy surfaces. The treatment consists of a chemical process and a coating process, and the primary characteristics are that of developing a luster on AZ31 magnesium alloy and imparting a high resistance to corrosion. When Mgbright was applied, the value of surface roughness, Ra, required for developing luster was 1.5 µm. As the target Ra value of press-formed articles was set to less than 1.5 µm, mass-production press-forming was tested by means of the 100,000 times square-cup drawing method, and the target was achieved. We applied the Mgbright treatment techniques and the square-cup drawing test, and produced a laptop computer chassis.

43

Breunig, A., and P. Groche. "Pressure Distributions in Deep Drawing with a Passive Cardanic Blank Holder." IOP Conference Series: Materials Science and Engineering 1284, no. 1 (June 1, 2023): 012082. http://dx.doi.org/10.1088/1757-899x/1284/1/012082.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Abstract Deep drawing processes are strongly influenced by the blank holder forces, as well as their local distribution. In current deep drawing tools, this pressure distribution is dominated by the compliance of the specific machine the tool is mounted on. Therefore, each tool must be manually polished to enable the desired distribution of the blank holder pressure. This regularly causes problems when transferring tools from one machine to another, for example from a try-out press to a regular press line. As both machines have unique compliances, the pressure distribution on the flange of the drawn part changes. Additional manual spot grinding is needed to achieve the desired pressure distribution on the flange. To counteract this problem, the use of a passive cardanic blank holder is proposed in this paper. The cardanic blank holder can freely tilt around two axes, which leads to an auto-leveling effect of the blank holder on the sheet, resulting in a more uniform blank holder pressure. This effect is demonstrated experimentally using pressure sensitive film on the same tool with two different blank holders, one equipped with a conventional blank holder, the other with a cardanic blank holder. To demonstrate transferability, the experiments are repeated on multiple single acting presses. The contribution will present and discuss the resulting pressure distributions.

44

Sakamoto, Hidetoshi, Yoshifumi Ohbuchi, Hiroyuki Kuramae, and Jian Shi. "Deep Drawing Formability Analysis of AZ31 Mg-Alloy." Advanced Materials Research 337 (September 2011): 701–4. http://dx.doi.org/10.4028/www.scientific.net/amr.337.701.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Light and highly resistant, magnesium has been more and more included into alloys composition, especially in automotive and electronic devices. Usual automotive applications for magnesium alloys are gearbox, cylinder head covers and other types of covers, when electronic industry uses this alloys for mobile computers and mobile phones frames (chassis). However casting is still the first production process for magnesium application, press forming is considered as having significant potential. Yet, influences of many key parameters are not clearly known. In this report, sheets of AZ31 magnesium alloy were submit to deep drawing tests to investigate the influence of temperature, lubricant, blank holding pressure and speed. As a result, an appropriate lubricant was selected out of a set of potentially interesting lubricants selected with respect to their announced properties. Deep drawing tests also enlighten the poor formability of AZ31 even at 160°C and an apparent optimum formability temperature at 200°C. Other tests and controls, like thickness profile, were also performed to complete knowledge of AZ31 properties.

45

Ong, Kuan Liang, and Chin Joo Tan. "Estimating Forming Conditions for Deep Drawn SUS304 Square Cups Having no Delayed Cracks Using FE Simulation." Materials Science Forum 1078 (December 22, 2022): 17–22. http://dx.doi.org/10.4028/p-6w41co.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Forming conditions for deep drawn SUS304 square cups having no delayed cracks are determined using finite element (FE) simulations based on the threshold % of wall thickening for delay cracking obtained from deep drawing tests of SUS304 cylindrical cups. The maximum drawing ratio and the initial blank thickness are fixed at 1.87 and 0.8 mm, respectively in this study taken into the considerations of the capacity of the press machine i.e., 100 kN. The blank holding forces (BHF), punch corner radius, rp and die corner radius, rd are varied to obtain 75 mm x 75 mm square cups having % of local thickening less than the threshold value i.e., 47% in the cracking zones located adjacent to the top corners of the cups. A quarter 3D FE simulation model of the deep drawing process is constructed, the wall thickness distributions of the cups are calculated. The simulation results showed that the forming conditions for the crack-free cups could be obtained with BHF ≥ 47 kN, rp ≥ 8.5 mm and 6.8 mm ≤ rd ≤ 9.5 mm. A method for designing the forming conditions of deep drawn SUS304 square cups is proposed in this study.

46

Steins, Gisela, and Robert A. Wicklund. "Perspective-Taking, Conflict, and Press: Drawing an E on Your Forehead." Basic and Applied Social Psychology 18, no. 3 (September 1996): 319–46. http://dx.doi.org/10.1207/s15324834basp1803_5.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

47

Großmann, K., H. Wiemer, A. Hardtmann, L. Penter, and S. Kriechenbauer. "Static compensation for elastic tool and press deformations during deep drawing." Production Engineering 4, no. 2-3 (March 13, 2010): 157–64. http://dx.doi.org/10.1007/s11740-010-0216-7.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

48

Kriechenbauer, Sebastian, Reinhard Mauermann, and Dirk Landgrebe. "Deep Drawing with Local Hardening on Digital Multi-axis Servo Press." Acta Metallurgica Sinica (English Letters) 28, no. 12 (December 2015): 1490–95. http://dx.doi.org/10.1007/s40195-015-0348-z.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

49

Klingel, Lars, Lars Penter, Philip Mayer, Steffen Ihlenfeldt, and Alexander Verl. "Digital Twins in deep drawing for virtual tool commissioning and inline parameter optimization." IOP Conference Series: Materials Science and Engineering 1238, no. 1 (May 1, 2022): 012072. http://dx.doi.org/10.1088/1757-899x/1238/1/012072.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

Abstract Fluctuating boundary conditions and the highly nonlinear process behavior of deep drawing operations make experience-based selection of suitable control parameters difficult. Nowadays, commissioning deep drawing tools, i.e., die spotting and identification of suitable control parameters for defect-free parts, is conducted on real world try-out presses. Transferring the tools to production machines entails adaption of these initial parameters. Once production is ramped up, any changes to material properties, lubrication and press behavior require continuous manual machine parameter tuning. Virtual tool commissioning and utilizing these simulation models in the production phase to adapt control parameters would reduce time and cost over the entire life cycle of the machine and the tool sets. The virtual representative, which provides services for a plant over several life cycle phases, is also referred to as Digital Twin. In this paper, the authors present a Digital Twin concept for deep drawing presses to predict the state of the system and optimize the control parameters during the production. The integration of all involved subsystems into one system simulation and its efficient calculation is the biggest challenge. The authors combine a virtual commissioning simulation tool with a finite element model to implement all relevant properties of the deep drawing press and the interaction of its subsystems. It is shown, how the idea of a system simulation makes predictions of system parameters specific to a production situation possible, and therefore, can help to select suitable control parameters that leads to a reduction of the error rate in deep drawing.

50

Ku, Tae Wan, Ho Yeun Ryu, June Key Lee, and Beom Soo Kang. "Numerical and Experimental Approach for Rectangular Cup of Li-Ion Battery Container with Extreme Aspect Ratio." Key Engineering Materials 340-341 (June 2007): 689–94. http://dx.doi.org/10.4028/www.scientific.net/kem.340-341.689.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Анотація:

The main goal of this study was to develop the technique of process design and manufacturing for a rectangular deep drawn cup with very narrow width by using finite element analysis scheme and a series of experiments. The manufacturing process of this rectangular cup required several intermediate steps to generate the final shape. The multi-stage deep drawing process was applied to finite element analysis, and a continuous progressive press was employed in a series of experiments. Final specifications of the rectangular deep drawn cup were length of 33.70mm, height of 48.30mm and width of 3.46mm, respectively. In this study, finite element analysis for this drawing process was carried out from the first to the seventh stage, and a series of practical experiment was performed. These simulated results of the rectangular cup were compared with the prototypes of the experiments in view of the deformed shape in each mid-part. The results of finite element analysis showed good agreement with those from the experiments.