MANUFACTURING METHOD OF PRESS-MOLDING

专利名称：MANUFACTURING METHOD OF PRESS-MOLDING

发明人：TOBITA SHUNSUKE,飛田 隼佑,SHINGU

TOYOHISA,新宮 豊久,YAMAZAKI YUJI,山▲崎▼ 雄司

申请号：JP2017152412申请日：20170807公开号：JP2019030886A公开日：20190228

专利附图：

摘要：To provide a manufacturing method of a press-molding capable of reducing

spring-back in the width direction along the longitudinal direction without complicating ametal mold.SOLUTION: A manufacturing method for manufacturing by press-molding ametal plate in a product shape 1 having a cross-sectional shape of continuing a side wallpart 1B on both sides in the width direction of a top plate part 1A and having a curvedpart curved in the width direction along the longitudinal direction, comprises a firstprocess 10B of manufacturing an intermediate part by molding the line length along thelongitudinal direction of the curved convex side WA shorter than the line length in theproduct shape 1 on the curved part and molding the line length along the longitudinaldirection of the curved concave side WB longer than the line length in the product shape1 and a second process 10C of molding the line length of the curved convex side WAlonger than the line length in the first process 10B to the intermediate part and moldingthe line length of the curved concave side WB shorter than the line length in the firstprocess 10B.SELECTED DRAWING: Figure 1

申请人：JFE STEEL CORP,ＪＦＥスチール株式会社

地址：東京都千代田区内幸町二丁目２番３号

国籍：JP

代理人：森 哲也,田中 秀▲てつ▼,廣瀬 一,宮坂 徹

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