Effectiveness of ultrasonic vibration on press forming

Yutaka Ashida, Hideki Aoyama

研究成果: Conference contribution

抜粋

In press forming, it is most important to prevent wrinkling and cracking. A small clearance between the upper and lower dies is effective for preventing wrinkle generation. However, the small clearance increases sliding resistance between sheet material and dies and causes cracking of sheet material. On the other hand, large deformation of sheet material requires multi-step press working which involves incremental small deformations in order to avoid wrinkling and cracking. But this method requires a number of dies so that it increases cost and development time. In press forming, lubricant to reduce sliding resistance of sheet material is used for preventing wrinkling and cracks. However, the use of lubricant such as chlorofluorocarbon and trichloroethane has been restricted due to environmental concerns. The development of new press working techniques that do not use lubricant is thus desired. Since wrinkling and cracking are mainly caused by friction between sheet material and dies, forming techniques which can decrease the friction without lubricant are needed.

元の言語English
ホスト出版物のタイトルAdvances in Abrasive Technology XVI
ページ350-355
ページ数6
DOI
出版物ステータスPublished - 2013 10 25
外部発表Yes
イベント16th International Symposium on Advances in Abrasive Technology, ISAAT 2013 and 17th Chinese Conference of Abrasive Technology, CCAT 2013 - Hangzhou, China
継続期間: 2013 9 232013 9 26

出版物シリーズ

名前Advanced Materials Research
797
ISSN(印刷物)1022-6680

Other

Other16th International Symposium on Advances in Abrasive Technology, ISAAT 2013 and 17th Chinese Conference of Abrasive Technology, CCAT 2013
China
Hangzhou
期間13/9/2313/9/26

ASJC Scopus subject areas

  • Engineering(all)

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  • これを引用

    Ashida, Y., & Aoyama, H. (2013). Effectiveness of ultrasonic vibration on press forming. : Advances in Abrasive Technology XVI (pp. 350-355). (Advanced Materials Research; 巻数 797). https://doi.org/10.4028/www.scientific.net/AMR.797.350