发明名称 |
METHOD FOR MANUFACTURING HIGH-STRENGTH STEEL SHEET PARTS SUBJECT IN USE TO FATIGUE STRESSES |
摘要 |
<p>The manufacturing method comprises the steps of: carrying out one or more forming operations so as to give the desired geometry to the part; and subjecting the part thus formed to a single heat treatment having only a stress relieving treatment, which is preferably carried out at a temperature in the range from 530° C. to 580° C. for a time in the interval from 45 to 60 minutes and is followed by cooling of the part in air. By virtue of the formed part being subjected to a stress relieving heat treatment, the residual stress state due to the initial forming process and to the bead welding, if any, is eliminated or at least significantly reduced.</p> |
申请公布号 |
EP2675928(A1) |
申请公布日期 |
2013.12.25 |
申请号 |
EP20120704795 |
申请日期 |
2012.02.17 |
申请人 |
SISTEMI SOSPENSIONI S.P.A. |
发明人 |
SANTINI, ANDREA;BORGNA, GUIDO;MONCHIERO, PIERO |
分类号 |
B21C37/08;B21D31/00;B60G7/00;C21D1/30;C21D8/02;C21D8/10;C21D9/00;C21D9/08;C21D9/46;C21D9/50;F16L9/02 |
主分类号 |
B21C37/08 |
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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