发明授权
US08156780B2 Method and device for cutting high-tensile sheet metal, and press
失效
切割高强度金属板的方法和装置,并按压
- 专利标题: Method and device for cutting high-tensile sheet metal, and press
- 专利标题(中): 切割高强度金属板的方法和装置,并按压
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申请号: US11569874申请日: 2005-05-12
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公开(公告)号: US08156780B2公开(公告)日: 2012-04-17
- 发明人: Stefan Fellenberg , Juergen Fahrenbach , Hans-Joerg Schaller
- 申请人: Stefan Fellenberg , Juergen Fahrenbach , Hans-Joerg Schaller
- 申请人地址: DE Berlin
- 专利权人: nanoferenz GmbH
- 当前专利权人: nanoferenz GmbH
- 当前专利权人地址: DE Berlin
- 代理机构: Jerry Turner Sewell
- 优先权: DE102004027017 20040602; DE102004034775 20040719
- 国际申请: PCT/DE2005/000869 WO 20050512
- 国际公布: WO2005/120741 WO 20051222
- 主分类号: B21D43/28
- IPC分类号: B21D43/28 ; B21D31/00 ; B26D7/14
摘要:
In a method of cutting high-tensile workpieces, in particular sheet metals of martensite steel, the workpiece is subjected to a bending stress prior and during a shearing process. The bending stress causes a substantial component of a tensile force transverse to a desired cutting contour. Tensile stresses are superimposed to the shearing stresses, which favor the beginning of the workpiece separation. The bending stress is preferably selected so that the resulting tensile stress exists at a side facing the cutting tool.
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