There are two main ways to deal with the surface problems of automobile sheet metal parts.

2019-09-19 08:51:43

The so-called sheet metal refers to the products processed by sheet metal technology. Sheet metal has been widely used in our daily life. Sheet metal has the characteristics of light weight, high strength, conductivity (can be used for electromagnetic shielding), low cost and good mass production performance. The common problems in the use process are rust on the surface and so on. Problem.

There are two main ways to deal with the surface problems of sheet metal parts:

1. Clearance treatment.

In steel and copper sheets, the corrosion, dirt and oxide scales of their outer layers will affect the sheets, and cracks, pore and so on may occur. So we have to do shape cleaning before connecting. Generally speaking, we can use pickling method and mechanical method to deal with it.

2. Softening treatment.

In fact, he is to eliminate the residual stress during work hardening and production, so that it can be restored to its original plasticity, so we need to soften. Generally speaking, according to the requirements of softening, we can be divided into isothermal annealing, full annealing, stress annealing and recrystallization annealing.

Automobile sheet metal parts are one of the main components of automobiles. The whole body in white is assembled from 400 to 500 stamping parts. Sheet metal parts not only play a protective and aesthetic role, but also are the main carrier of gas resistance for automobiles. The quality and life of sheet metal parts not only affect the appearance of automobile, but also increase the resistance of air to automobile due to quality and deformation, which makes the quality and performance of the whole vehicle decline. Therefore, it is very important to ensure the quality of stamping parts. How to ensure the quality of stamping parts, first of all, we need to understand the common defects and causes. This paper mainly introduces the common defects and reasons of three kinds of stamping parts.