Structure for body-side outer panel and fender piece area of automobile

Abstract

The invention relates to a structure for a body-side outer panel and a fender piece area of an automobile. The structure comprises the body-side outer panel and the fender piece area; a tail end of a body-side A pillar is closed; the structure is characterized in that a distance (H) between a body-side peak of a fender piece and a welding edge is in contrast with the distance (W) between a line of the fender piece and the tail end of the body-side A pillar; the distance (H) between the body-side peak of the fender piece and the welding edge is less than the distance (W) between the line of the fender piece and the tail end of the body-side A pillar; and transition (G), namely a profile of which is within an area between the line of the fender piece and the tail end of the body-side A pillar, is smooth. In the structure, the distance between the body-side peak of the fender piece and the welding edge and the distance between the line of the fender piece and the tail end of the body-side A pillar are controlled, so that the transition, namely the profile of which is within the area between the line of the fender piece and the tail end of the body-side A pillar, is smooth, thereby being capable avoiding the phenomena of folded materials and corrugation on the body-side welding edge.

Description

technical field [0001] The invention relates to the field of design of automobile body-in-white parts, in particular to the part structure design and forming quality control of the parts area of ​​the automobile side wall outer panel and fender panel. Background technique [0002] A new car costs a lot of money from initial market research to mass production. The cost and time of body development and design account for about 70% of the cost and time of vehicle development. The side panels developed for early new models adopt a split design. With the improvement of technology level and material performance, such as figure 1 As shown, the side panels are now of a one-piece design. The one-piece design of the side panel is the core of the body-in-white parts manufacturing. It has the characteristics of complex shape, large structural size, difficult forming, and high quality requirements for the outer surface. In the development process of vehicle body parts, the side panel ...

AI Technical Summary

Problems solved by technology

In the side shaping stage of the stamping process, the drawn sheet cannot be released, the side wall after side shaping and the welding edge S are seriously overlapped, the corner area C of the side wall is severely cracked, and the defects of the part cannot be solved by the process

The structural design of this part increases the difficulty of the process and the mold debugging cycle, resulting in a high scrap rate of the parts and a large increase in production and manufacturing costs

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