High quality automobile sheet metal parts are applied in all fields of our life

2019-10-08 17:18:39

Automotive sheet metal parts are widely used in various fields of our life, including some electronic devices, automotive parts, decorative materials and so on.

Measuring method of metal automobile stamping parts: The hole measurement of metal stamping parts takes small value according to the general gauge measuring method. When recording with caliper measuring, it can generally record small value (excluding the error caused by too small value, analogy measuring error), (excluding special circumstances). It has no practical significance to record large value and average value, and it has no practical significance to measure the size of aperture in all directions. Differences should be recorded in the roundness of geometric tolerances, not in the aperture.

In addition, if it is surveying and mapping, and no size can be referred to, it should be determined according to its cross-section situation, not only its average value, such as the measured small value may be caused by wear at some point of its punch, at this time the bright band of the cross-section is very small, then the small value is meaningless.

Generally speaking, the wear of punch leads to the smaller punch hole (special-shaped hole needs specific analysis), so when surveying and mapping, we can take its large value, cross-section quality should not be forgotten, because the punch is manufactured with the basic size of the hole + the large value within the allowable deviation multiplied by 0.5-0.75, so as to leave the wear amount, after a period of time, the use of punch hole becomes smaller, but as long as the quality of the cross-section is also acceptable, then its quality is acceptable. When the value is still within tolerance range, it is correct to take a large value at this time (similarly, it should be excluded that the excessive value has some factors such as deformation in the direction of plate thickness, such as hole warping, especially thin plate).

Compared with plastic and mechanical processing, metal automobile stamping processing has many unique advantages in economy and technology. It can be divided into the following points:

1. In the stamping process, because the mold can ensure the shape and size of the automobile stamping parts, and generally does not destroy the surface quality of stamping parts, and the service life is longer. This means that the products produced by stamping are not only of stable quality, but also of good interchangeability.

2. The automobile stamping parts are highly efficient in the production process, and the main thing is that the operation is very convenient, and it is easier to achieve automation and mechanized production.

3. Stamping parts can produce parts with complex shapes and wide sizes, such as small stopwatches and clocks, large parts and automotive panels, or even more different parts. Because the cold deformation and hardening effect of materials in the process of automotive parts are better, the stiffness and strength of stamped parts are also higher. 。

4. There is no debris in stamping, so the waste of materials is reduced, and no other heating equipment is needed at all. So we call it energy-saving and material-saving good equipment, so the cost is correspondingly much lower.