Abstract
The purpose of this research is to determine the state inside the material using finite-element analysis and to improve the performance of a rotary-draw bending forming by clarifying the mechanism of wrinkle generation. An analytical model of rotational drawing was made by using the general-purpose nonlinear finite-element analysis software MSC Marc, and the analytical results were compared with experimental results to verify the validity of the model. Furthermore, the mechanism of wrinkle generation was investigated. With the progress of processing, wrinkles occur not in the R part but in the original tube-side straight-tube part. The coefficient of friction between the tube material and the R portion of the bending mold promotes the occurrence of wrinkles and the growth of the generated wrinkles. Because wrinkles occur even if the friction coefficient between the tube material and bending mold R part is ignored, the generation condition of wrinkles also depends on parameters other than the friction coefficient.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference6 articles.
1. The Japan Plastic Processing Society, Tube Forming – Secondary Processing of Tubular Materials and Product Design –, Corona Company, Tokyo, 1992, p.39 – 40.
2. Shigeki Mori, ken–ichi Manabe, Hisashi Nishimura and Kimio Tamura, Deformation of Clad Tubes in Rotary Draw Bending, J. of JSTP, 33–378 (1992) 862 – 867.
3. Osamu Sonobe, Yuji Hashimoto, Koji Suzuki, Kei Sakata and Ken–ichi Kawai, Experimental and Analytical Studies of Deformation Behavior of ERW Tubes in Rotary Draw Bending, J. of JSTP, 51 – 589 (2010) 121 – 125.
4. Shuji Sakaki, Yusuke Okude and Shoichiro Yoshihara, Working Limit for Several Types of Cross Section in Draw Bending, J. of JSTP, 53 – 614 (2012) 246 – 250.
5. Masabumi Yuhara, Makoto Hoshino and Osamu Wada, Draw Bending of Tube Using Ultrasonic-Vibration Plug, J. of JSTP, 53 – 618 (2012) 646 – 650.
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