Invention Grant
US4122697A Means and method for reducing radius expansion in the bending of
elongated materials
失效
用于减小细长材料的弯曲中的半径膨胀的方法和方法
- Patent Title: Means and method for reducing radius expansion in the bending of elongated materials
- Patent Title (中): 用于减小细长材料的弯曲中的半径膨胀的方法和方法
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Application No.: US709929Application Date: 1976-07-29
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Publication No.: US4122697APublication Date: 1978-10-31
- Inventor: Susumu Hanyo , Jousuke Yamaguchi , Yoshiyuki Morishita , Itoshi Noguchi
- Applicant: Susumu Hanyo , Jousuke Yamaguchi , Yoshiyuki Morishita , Itoshi Noguchi
- Applicant Address: JPX
- Assignee: Daiichi Koshuha Kogya Kabushiki Kaisha
- Current Assignee: Daiichi Koshuha Kogya Kabushiki Kaisha
- Current Assignee Address: JPX
- Priority: JPX50-64956 19750530
- Main IPC: B21D7/025
- IPC: B21D7/025 ; B21D7/16 ; B21D7/024
Abstract:
A means and method is provided for reducing radius expansion of bent, elongated materials due to "spring-back" occurring after the material is released from the bender clamps of a hot bending apparatus, wherein the longitudinal axis of the unbent portion of the material is displaced by a small angle from a perpendicular to a line running through the center of the bend and the bender heating means.
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