In metal stamping, the die is the basis of production. When designing the die, the die gap is very important. Reasonable stamping blanking die gap is crucial to the service life of the stamping die and product quality. Too large or too small will not only affect the life of the die, but also cause problems such as flatness, dimensional accuracy and appearance burrs on the product, affecting product quality. Kailai Machinery, as a manufacturer of customized metal stamping parts with 28 years of experience, will answer questions about the setting of carbon steel die gap for everyone today.

What is the stamping die gap?

The stamping die gap refers to the distance between the punch and the die edge of the stamping die.

What problems will arise if the stamping gap is unreasonable?

Too small die gap: Too small die gap will increase friction, aggravate die wear, and reduce die life. It will also increase the risk of die edge cracking and increase mold loss.

Too large die gap: Too large a gap causes the shearing force to be much smaller than the tensile force, which increases the collapse angle of the stamping part, the flatness of the product cannot be guaranteed, and the burrs increase accordingly, which reduces the quality of the product.

How to set the gap of carbon steel stamping die?

1. When the thickness of carbon steel plate is 1mm-3mm, its die gap controls about 5%-8% of the material thickness.

2. When the thickness of carbon steel plate is 3mm-5mm, the die gap is 8%-10% of the material thickness.

Reasonable die gap will balance the punching force of the punch press, increase the die life, reduce the die maintenance rate, improve the dimensional accuracy of stamping products, flatness, and reduce burrs.

As a high-quality supplier certified by ISO 9001, Kailai Machinery can provide exclusive die design services for your products. If you need it, please contact us.