Rectification method for improper flanging angle and uneven flanging surface of automobile L-shaped stamping parts
A stamping and L-shaped technology, which is applied in the field of rectification of insufficient flanging angle and uneven flanging surface of automotive L-shaped stamping parts, which can solve the problem of uneven flanging surface of L-shaped stamping parts, large matching gap, affecting welding quality, etc. problems, to achieve the effect of ensuring accuracy and flatness
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[0018] The L-shaped stamping parts on the car are mainly formed by the forming process, and the flanging angle is 90 degrees or greater than 90 degrees.
[0019] The invention discloses a method for rectifying the flanging angle of an L-shaped stamping part of an automobile that is not in place and the flanging surface is uneven, such as figure 1 As shown, in the stamping process of L-shaped parts, the die 2 of the mold includes the flanging surface of the stamping part, the working surface of the side part of the die 2 and the working face of the side part of the punch 1 are inclined outwards, and the concave The working surface on the upper part of the mold 2 is a slope inclined downward toward the side of the die 2, and the working surface on the upper part of the punch 1 is a slope inclined downward toward the side of the punch 1, and the workpiece is rotated on the mold for 2~ 7 degrees, the rebound process allowance is reserved on the part, so that the stamping angle of...
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