Punch Chipping

Punch Chipping

Punch Chipping

Cause	Solution
Sharpening Damage	Flood coolant, check grinding wheel grit and bond

Punch to Matrix Misalignment	Check die & press alignment

Regrind Burr On Punch Or Matrix	Remove regrind burr (break sharp corners on punch face)

Lateral Movement of Part Material	Use a spring stripper

Tight Die Clearance	Increase die clearance Change punch material

Improper Punch Material	Change punch material

Sharp Corners On Shaped Rectangular Punches	Use "L" Punches

Punch Point Breakage \| Slug Jamming \| Slug Pulling
Punch Wear & Galling \| Punch Head Breakage \| Problem Solver Guide