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METHOD OF PRESS-FORMING TUBULAR MEMBER HAVING IRREGULAR CROSS-SECTIONAL SHAPE, AND TUBULAR MEMBER HAVING IRREGULAR CROSS-SECTIONAL SHAPE, FORMED BY THE PRESS-FORMING METHOD
METHOD OF PRESS-FORMING TUBULAR MEMBER HAVING IRREGULAR CROSS-SECTIONAL SHAPE, AND TUBULAR MEMBER HAVING IRREGULAR CROSS-SECTIONAL SHAPE, FORMED BY THE PRESS-FORMING METHOD
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机译:具有不规则横截面形状的管状构件的压制方法以及具有不规则横截面形状的管状构件的压制方法
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摘要
A method of press-forming a tubular part having a cross section of an irregular shape crushes a steel tube between an upper die and a lower die in order to form a V-shaped cross section. When the curvature radius of a tip of the upper die is defined as R 1 , the curvature radius of a bottom portion of the lower die corresponding to the tip of the upper die is defined as R 2 , and the wall thickness of the steel tube is defined as t; R 1 , R 2 , and t satisfy R 1 +2t=R 2 and 1.5t‰¤R 1 ‰¤3t.
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机译:压制成形具有不规则形状的横截面的管状部件的方法将钢管压在上模具和下模具之间以形成V形横截面。当将上模具的尖端的曲率半径定义为R 1时,下模具的与上模具的尖端对应的底部的曲率半径定义为R 2,并且钢管的壁厚定义为t; R 1,R 2和t满足R 1 + 2t = R 2和1.5t≤R1≤¤3t。
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