How to handle with the jumping scrap crushing for stamping die?

The reason why crushing came out as blow:
1. Gap is too big;
2. Unsuitable feeding;
3. Too much stamping oil,scraps pasted on the part;
4. Tooling without demagnetization;
5. Punch weared, scraps pressed on the punch;
6. Punch is too short, length isn’t enough when inserted to the die;
7. Raw material is too hard, part with easy sharp;
8. Emergency measurement;

The relative countermeasures as blow:
1. Control the fabrication precision or change the designing gap.
2. Cut the material strip when feeding to the right position, and clean the tooling meanwhile.
3. Control the stamping oil adding speed, or change oil to reduce it’s voscosity.
4. After grinding, part must do demagnetization process. (especially for stamping steel material)
5. Grinding core plate die.
6. Adjust the length when punch blade into the die.
7. Change raw material,revise the design, punch blade side pack out or sharped with a slope or arc (pay attention to the direction), reduce  the joint area between punch blade area and the scraps.
8. Reduce die blade’s sharpness and grinding size, add surface roughness of the punch blade. use cleaner to collect the waste material, bring down the stamping speed,in order to avoide jumping scraps.