FRONT AXLE BEAM AND METHOD FOR PRODUCING SAME

WIPO Patent Application WO/2018/186372

A1

In a pressing down step of the present invention, a first forged article (201) is pressed down by a first die (310), and thereby a second forged article (202) that includes a rough flange section (241) having a thickness varied section (141) is formed. The thickness varied section (141) includes an anterior portion that protrudes out frontward from an end of a rough web section (220), and a posterior portion that protrudes out rearward from the aforementioned end. The anterior portion and the posterior portion each include a first portion, and a second portion that is thicker than the first portion and also is farther from the rough web section than the first portion is. In the pressing down step, at least a region (thick region) that is present in the up-down direction of the rough web section (220) is pressed down by the first die (310), and as a result, some material in this region is pushed toward the front and the rear of the first forged article, thus forming the thickness varied section (141).

TAMURA KENJI (JP)
IMANISHI KENJI (JP)
HWANG SAM SOO (JP)
YABUNO KUNIHIRO (JP)
YOSHIDA KUNIHIRO (JP)
ISHIHARA KOICHIRO (JP)

PCT/JP2018/014181

October 11, 2018

April 03, 2018

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NIPPON STEEL & SUMITOMO METAL CORP (JP)

B21K1/12; B21J5/02; B60B35/06; B60G9/04

JPS58164907U	1983-11-02
JPH06190492A	1994-07-12
US6196563B1	2001-03-06
JPH0542307A	1993-02-23
JPS55144347A	1980-11-11
JP2003285771A	2003-10-07
JP2009106955A	2009-05-21

ASCEND IP LAW FIRM (JP)

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