How to deal with the sheet metal parts is more appropriate?

In the production process of automobile sheet metal parts, there are certain requirements for stamping technology and stamping die. In the high-speed stamping die stamping equipment and multi-function, is only "high speed" and "multi function" can not meet the requirements of production, only the conveying plate to punch and die continuously, and the sheet metal workpiece after punching in a very short period of time from the stamping die out and transported to the next a pressing station, in order to ensure the realization of economic theory. Therefore, the correct stamping process should be: careful analysis and Research on the stamping process of the whole sheet metal parts, ensuring that the whole process of sheet metal processing from sheet metal is finished, with the shortest production rhythm expected, so as to achieve the best efficiency.

Scavenging treatment

In the steel and copper plates, the rust, dirt and oxide skin of their outer layer will affect the plate, and there may be cracks, holes and so on. So we have to be in before the connection form in general we advanced cleaning, can be treated with acid washing and mechanical method.

Softening treatment

In fact, he is to take the time to work hardening and residual stress produced by are eliminated, restore the original plastic, so we have to carry out softening treatment, according to the general requirements of softening can be divided into full annealing, isothermal annealing, stress annealing and recrystallization annealing etc..

The unfolding of automobile sheet metal parts should be combined to facilitate the saving of materials and machinability.

The automobile sheet metal parts should choose the clearance and the way of the edges reasonably, the following clearance of the T=2.0, the T=2-3 clearance 0.5, the way of the long side package and the short side (the door plate type).

The automobile sheet metal parts should consider the dimension of tolerance in a reasonable way: the negative difference takes the end to the end, and the positive difference is half; the hole size: the positive difference is in the end and the negative difference is half.

The direction of burr;

Check material, plate thickness, plate thickness tolerance;

Tooth extraction, pressure riveting, tearing, punching point (package), and other position direction, draw a sectional view.

Where there are errors (similar asymmetries), places should be highlighted.

In a special angle, the inner radius of the bending angle (general R=0.5) must be folded and unfolded.

The larger size should be added to the large map.

The need for spraying protection must be expressed.