What are the causes of burrs in metal stamping parts? In the process of processing metal stamping parts, it is sometimes found that there are some burrs of different sizes in stamping parts, which have a certain impact on product quality. Next, let me introduce you to the reasons:

First, the blade is blunt. Burrs can be produced when the cutting edge is worn, blunted or gnawed. The factors that affect the dullness of the cutting edge are:

1. The materials of the male and female dies of the die and their surface treatment conditions are poor, and the wear resistance is poor;

2. The punching die has poor structure and poor rigidity, resulting in gnawing injury;

3, the operation is not timely lubrication, wear fast;

4. The sharp edge was not sharpened in time.

Second, the gap. Too large, too small or uneven blanking gap can produce burrs. There are the following factors that affect the gap is too large, too small or uneven:

1, mold manufacturing error, die parts processing does not conform to the drawings, poor parallelism of the bottom plate, etc.;

2. Die assembly error, large gap of guide part, misalignment of punch and die assembly, etc.