Process method for controlling surface defect of flanged ridge R of tail lamp of side wall outer plate

Abstract

The invention discloses a process method for controlling the surface defects of a flanged ridge line R of a tail lamp of a side wall outer plate for modifying a flanging mode of a third working procedure for processing a side wall outer plate tail lamp area to ensure that flanging inserts are in contact with materials simultaneously during flanging. Processing for the side wall outer plate rear lamp area comprises the following working procedures: firstly, drawing is conducted; secondly, trimming is conducted; thirdly, straight flanging and inclined flanging are conducted, specifically, flanging of a first-layer matching face of the product is completed through one-time flanging, it is guaranteed that flanging inserts make contact with materials at the same time during flanging, cutter connection in a flanging excessive-material area is avoided, and the possibility that the ridge line R is not smooth is theoretically eliminated; and fourthly, straight flanging or inclined flanging is conducted, specifically, flanging of a second-layer welding face of the product is completed, and the flanging ridge line R cannot be affected by the content of the procedure. According to the method,the forming quality of a workpiece in the production process can be guaranteed, the process risk caused by flanging and cutter connecting is reduced, the surface defects such as unsmooth R are overcome, and the round of later workpiece rectification and reforming can be effectively reduced.

Description

technical field [0001] The invention relates to a process method for controlling the surface defects of the edge line R of the flange of the rear taillight of the side wall outer panel, which can not only ensure the forming quality of the workpiece in the production process, reduce the process risk caused by the flange and knives, and solve the problem of R irregularity. Surface defects such as surface defects can effectively reduce the number of rectification rounds of post-production parts. Background technique [0002] The side panel is the largest, most complex, and most critical part of the body outer panel of a passenger car. It is the assembly benchmark of the stamped parts of the whole vehicle. The control of dimensional accuracy has extremely high requirements. Its matching relationship is extremely complicated, and there are strict tolerance matching requirements with main components such as fenders, roof covers, doors, hair covers, rear taillights, and rear bumpe...

AI Technical Summary

Problems solved by technology

[0008] The invention is a method for controlling the surface defect of the outer panel of the side wall, which solves the problem that the edge line R of the flanging is not smooth caused by the flanging knives and the multi-material flanging

The invention can not only ensure the forming quality of the parts in the production process, reduce the process risk caused by the flanging and joining of knives, solve surface defects such as R irregularities, but also effectively reduce the number of rounds of rectification of the later parts

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