发明名称 |
Magnesium-base alloy screw and method of manufacturing the same |
摘要 |
[Problems] It is an object of the invention to provide a producing method of a magnesium-based alloy screw capable of producing a screw made of magnesium-based alloy having excellent strength with excellent productivity, and to provide a magnesium-based alloy screw. [Means to Solve the Problem] The producing method includes a head forging step in which a head working for forming a head portion of a screw on a wire made of magnesium-based alloy obtained by drawing is carried out by warm working to produce a screw blank, and a thread rolling step in which thread rolling for forming screw thread on the screw blank is carried out by warm working to produce a screw. The head working in the head forging step is carried out using holding die which fixes the wire and a punch which forms a head portion of the screw. The holding die and the punch are heated, in which at least the holding die are heated to 140° C. or higher and 250° C. or lower, thereby heating the wire to 140° C. or higher and lower than 250° C.
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申请公布号 |
US2006130947(A1) |
申请公布日期 |
2006.06.22 |
申请号 |
US20050561536 |
申请日期 |
2005.12.19 |
申请人 |
OISHI YUKIHIRO;KAWABE NOZOMU;HASHIMOTO KENZABURO;FUKUDA KENJI |
发明人 |
OISHI YUKIHIRO;KAWABE NOZOMU;HASHIMOTO KENZABURO;FUKUDA KENJI |
分类号 |
C22F1/06;B21H3/06;B21J1/06;B21J5/00;B21K1/46;B21K27/06;C22C23/02;C22F1/00;F16B33/00;F16B35/00 |
主分类号 |
C22F1/06 |
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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