发明名称 |
Laser hardened steel cutting rule |
摘要 |
The invention relates to surface hardening of steel workpieces using laser beams and more particularly to laser hardening steel cutting rules. The method comprises applying a first laser beam of a first intensity and focused to a first focal point to a selected surface area of the metal workpart and subsequently applying a second laser beam having a second intensity and focused to a second focal point to the selected surface area. Application of the first laser beam heat treats the selected surface area to a predetermined depth, thereby increasing the surface hardness. Application of the second laser beam relieves internal stresses produced by the heat treating while retaining the increased hardness.
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申请公布号 |
US6218642(B1) |
申请公布日期 |
2001.04.17 |
申请号 |
US19990350999 |
申请日期 |
1999.07.12 |
申请人 |
J. F. HELMOLD & BRO., INC. |
发明人 |
CHRISTMAS DARRYL L.;GOOSSEN JAMES C. |
分类号 |
C21D1/09;C21D9/24;(IPC1-7):B23K26/00 |
主分类号 |
C21D1/09 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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