How to prevent galling?ACADEMY > TIPS AND INFORMATION > Punching thicker material ( <3~4mm MS / <2~3mm SS)Punching non-metallic or plastic materials
Punching thicker material ( <3~4mm MS / <2~3mm SS)
Extra Back Taper on the punch tip - 0.5 ° per side (standard 0.2 ° per side)
Corner radius - 0.5mm C.R. on shaped punch (Min.)
- Sharp punches and dies;
- Multiply the standard game x 1.4;
- Extra Back-taper on the punches;
- Ratio between diameter min. punch and material thickness of at least 1.5 ~ 2;
- Check the wear of tools often;
- Lubricate the plate, punch and guide;
- Make the machine work slower;
- Use heavy duty tools (if available);
- Check if the tool holder springs are in place;
- Use a larger station with special tools.