Automobile sheet metal parts should have good optimization design method

2021-05-07 09:24:16

Automobile sheet metal parts should have good optimization design methods. Therefore, stamping manufacturers take stamping optimization design as an important way to reduce the cost of automobile manufacturing, which can make the car appearance beautiful. The air resistance is reduced, and the number of stamping parts and welding joints can be reduced, and the cost can be effectively reduced.

At present, we make many products with moulds, and then use the mold to make them, which can improve the production efficiency. Also have many friends consult about the automobile stamping die selection principle what?

Selection principle of stamping die:

1. First, it is necessary to consider the die set under "select stamping die". Analyze whether the straight line to be pressed is greater than or equal to 1.5 times of the edge length of the die for the set square die. When the inside of the circle punch curve, analyze whether the diameter of the arc to be pressed is greater than the diameter of the punch, if so, use the set die.

2. It can be classified into the outline of basic graphics. First, search the die library for stamping die which is exactly the same as the contour and can be punched out by a stamping action. If there is such a mold, the stamping die set under "select stamping die" will be ignored and the found stamping die will be directly used.

3. For rectangular outline, if the long side is greater than or equal to 1.5 times of the short edge, it will automatically search for the square stamping die consistent with the short side of the rectangle: search for the round stamping die with the same groove width for the long round groove or circular groove. If any, use the punch directly. If the punch is not determined in the above two steps, the square punch or circular punch shall be used to step straight or circular arc.

Experience method. The method is mainly based on some empirical calculation formulas, so its application range is affected, and it is mainly used in the simple shape of expandable stamping parts (such as rotating parts, bending parts, or stamping parts composed of these simple shapes). Generally speaking, the method of developing free surface of plate by experience is a method of coincidence. Its accuracy is influenced by the rich degree of user experience, the empirical formula adopted and the selection of specific process parameters. The accuracy of the method needs to be further improved.