发明名称 |
MANUFACTURING METHOD OF PLANET CARRIER FOR VECHICLE |
摘要 |
The present invention relates to a method for manufacturing a planet carrier for vehicles. As to the method for manufacturing a planet carrier forging used for a vehicle transmission, the invention comprises: a step of preparing a predetermined weight of round bars as a raw material; a step of up-setting the raw material into a round plate shape with a predetermined thickness after heating the raw material to a predetermined temperature; a finisher step which hot-sizes the heated material into a predetermined shape using a pre-heated mold; a piercing step which forms a predetermined hole on a central shaft of the product after the finisher step; and a step of sizing the products after the piercing step through hot forging in order to satisfy a predetermined size. The invention is to reduce the weight of the raw materials to input without a trimming process, thereby being capable of reducing manpower and manufacturing equipment with required quality for complete products. [Reference numerals] (AA) Raw material (S25C);(BB) Upsetting step;(CC) Finisher step;(DD) Piercing step;(EE) Trimming step;(FF) Sizing step;(GG) Before improvement;(HH) After improvement |
申请公布号 |
KR20130138891(A) |
申请公布日期 |
2013.12.20 |
申请号 |
KR20120062392 |
申请日期 |
2012.06.12 |
申请人 |
HYUNDAI WISCO CO., LTD. |
发明人 |
LEE, SEE HUN;LEE, JONG KIL |
分类号 |
B21K1/28;B21J5/08;B21K7/12 |
主分类号 |
B21K1/28 |
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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