发明申请
- 专利标题: Large strain introducing working method and caliber rolling device
- 专利标题(中): 大应变引入工作方法和口径滚动装置
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申请号: US10557412申请日: 2004-05-20
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公开(公告)号: US20060260375A1公开(公告)日: 2006-11-23
- 发明人: Tadanobu Inoue , Shiro Torizuka , Eijiro Muramatsu , Kotobu Nagai
- 申请人: Tadanobu Inoue , Shiro Torizuka , Eijiro Muramatsu , Kotobu Nagai
- 优先权: JP2003-180291 20030520
- 国际申请: PCT/JP04/07279 WO 20040520
- 主分类号: B21B1/08
- IPC分类号: B21B1/08
摘要:
A method of rolling with a flattened-shaped caliber in a 1st pass and subsequently roiling with a square-shaped caliber in a 2nd pass In a caliber rolling of two or more continuous passes. The rolling is performed with a caliber which sets the ratio of the minor axis (2A01) of a 1st pass flattened to a material opposite side dimension (2A0) to A01/A0≦0.75 and the ratio of a 2nd pass vertical diagonal dimension 2As1 to the major axis 2B1 of a material after the 1st pass to As1/B1≦0.75 to introduce the large strain into the material. Thus, the effect of the distribution of strain introduced into the material in the 1st pass on the distribution of strain and the shape of the next pass is made clear so that the large strain can be introduced into the entire cross sectional are of the material, particularly at the center of the material.