发明名称 |
METHOD FOR MANUFACTURING MOLDED MATERIAL, AND SURFACE-TREATED METAL PLATE USED THEREIN |
摘要 |
This method for manufacturing a molded material includes a step wherein a convex molded part is formed by performing a molding process one or more times on a surface-treated metal plate, and a step wherein an ironing process is performed on the molded part by means of an ironing mold after the molded part is formed. The ironing mold is equipped with a punch that is inserted into the interior of the molded part, and a die having a push-in hole into which the molded part and the punch are pushed. The inner circumferential surface of the push-in hole is provided so as to extend non-parallel to the outer circumferential surface of the punch, and so as to have a clearance with respect to the outer circumferential surface in accordance with the non-uniform sheet thickness distribution of the molded part in the push-in direction prior to the ironing process, so as to achieve a fixed amount of ironing of the molded part along the push-in direction. |
申请公布号 |
PH12016501125(A1) |
申请公布日期 |
2016.08.15 |
申请号 |
PH12016501125 |
申请日期 |
2016.06.10 |
申请人 |
NISSHIN STEEL CO., LTD. |
发明人 |
NAKAMURA, NAOFUMI;YAMAMOTO, YUDAI;KUROBE, JUN |
分类号 |
B21D22/28 |
主分类号 |
B21D22/28 |
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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