Controlling Burrs in High Speed Stamping

For electrical components, burrs are not just ugly—they can cause short circuits. At Atharva Engineers, we follow a strict protocol for burr control.

The 10% Rule

Generally, the maximum allowable burr height should not exceed 10% of the material thickness. For a 0.5mm brass terminal, the burr must be under 0.05mm.

Correct Cutting Clearance

The most common cause of excessive burrs is incorrect clearance between the punch and the die. If the clearance is too tight, the secondary shear creates a burr. If too loose, the material tears.

Tool Maintenance Schedule

We regrind our cutting elements after every 50,000 strokes for high-precision jobs, ensuring the cutting edge remains razor sharp.

Burrs on parts from an existing tool? Our die maintenance and repair service covers regrinding and clearance correction.