FORMING METHOD FOR METAL FORMING ARTICLE EXCELLENT IN ACCURACY OF SHAPE
- 申请公布号：
- JP2004009080(A)
- 申请号：
- JP20020163973
- 申请日期：
- 2002.06.05
- 申请公布日期：
- 2004.01.15
- 申请人：
- NISSHIN STEEL CO LTD;EIBURU:KK
- 发明人：
- SUZUKI SATOSHI;HIRAMATSU NAOTO;NISHIMURA TAIJI;KIJIMA KEIJI;SUGIYAMA SABURO
- 分类号：
- B21D24/10;B21D22/20;B21D22/24;B21D24/00;(IPC1-7):B21D24/10
- 主分类号：
- B21D24/10
- 摘要：
- PROBLEM TO BE SOLVED: To provide a method for manufacturing machine parts and electronic components capable of imparting thickness differences according to the products range, enjoying good dimensional accuracy and improved productivity. SOLUTION: A plate presser foot 4 is located on a die 2 independent of a punch 1, and a counter punch 5 is located at a punch pass-through place inside the die and a press working is performed by ramming a disk-like metal stock 3 into the die 2 with the punch 1, while pressing the disk-like metal stock 3 to the die 2 with the plate presser foot 4 and then, a hot pressing work is performed by independently controlling each wall thickness t1 of the product flange portion by adjusting the plate presser foot amount and each wall thickness t2 of the product punch bottom by adjusting the punch ramming amount and the counter punch plate presser foot amount. COPYRIGHT: (C)2004,JPO
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