Stamping factories may produce varying degrees of burrs during processing, which can seriously affect the quality of stamped parts. If the burrs on stamped parts are too large, they can wear out protective gloves and pose safety hazards; Stamping burrs can collide and fall on the mold, and the resulting iron filings can create protrusions on the stamped parts, leading to surface defects; Stamping burrs can cause scratches and surface defects when there is a conflict between sheet metal parts; If the flanging position occurs at a location with excessive burrs, it is easy to cause cracking at the flanging point; Excessive burrs can also lead to easy falling and corrosion after painting, reducing the service life of the vehicle body; Excessive burrs can also affect the edge quality of stamped parts. The burrs on stamping parts are usually considered to be unavoidable, so in people‘s minds, any stamped part should have burrs. In fact, burrs in stamping processing plants also have their allowable scale:

1. Stamping parts require the length of burrs to be less than 10% of the thickness of the sheet metal;

2. Burrs that cannot affect the degree of welding edge fitting;

3. Burrs that cannot easily cause personal injury;

4. Punching burrs that cannot affect the positioning and assembly of parts.

This article is from EMAR Mold Co., Ltd. For more EMAR related information, please click: www.sjt-ic.com，