What is the solution to the easy fracture of tungsten steel punch?

2025-10-09 14:41:42

Tungsten steel punch in the use of stamping die production will produce the phenomenon of punch fracture, the following will introduce you to the common causes of punch fracture: 1. The closing height is too low, and the punch cutting into the knife edge is too long. Solution: adjust the closing height to make the punch blade suitable length. 2. punch edge is not sharp. Solution: Regrinding the cutting edge 3. The lower die waste blocks the knife edge, causing the punch to break. Solution: re-drill the large feeding hole to make the blanking smooth 4. The fixed part (splint) of the punch is offset from the guide part (strike plate). Solution: repair or re-line cutting into the block to make the punch up and down smoothly 5. The punching board is poorly guided, resulting in unilateral force on the punch. Solution: Refit the plate clearance 6. The punch blade is too short, and the plate is dry. Solution: Re-change the punch and increase the length of the knife edge part 7. The punch is not fixed well and moves up and down. Solution: Re-fix the punch so that it can not move up and down 8. Improper positioning of materials, resulting in punching tungsten steel punch cutting unilateral, due to uneven force fracture. Solution: adjust the positioning or feeding device.