发明名称 |
Production process of a piston |
摘要 |
To improve the abrasion resistance by increasing the ratio of copper content in the copper-type alloy layer on the periphery of the ring groove of a piston. A peripheral groove having a section of a roughly large trapezoidal shape larger than that of the ring groove is formed preliminarily on the outer peripheral face of the piston. While the powder of a copper-type alloy material is supplied to this peripheral groove, the laser beam is irradiated to melt the powder, and a thickening layers is thus formed. The thickening layer of a copper-type alloy is subjected to the machining process to form a ring groove for attaching the top ring,
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申请公布号 |
US5653021(A) |
申请公布日期 |
1997.08.05 |
申请号 |
US19960612522 |
申请日期 |
1996.03.08 |
申请人 |
NISSAN MOTOR CO., LTD. |
发明人 |
MATSUYAMA, HIDENOBU;NISHIMURA, KIMIO |
分类号 |
B23K26/00;B23K26/34;B23K35/28;B23K35/30;B23P15/10;C22C1/02;F02F3/00;F16J9/00;(IPC1-7):B23P15/00 |
主分类号 |
B23K26/00 |
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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