Scrap jumping, waste plugging, poor flaring and uneven trimming of the mold

Scrap jumping, waste plugging, poor flaring and uneven trimming of the mold

Scrap jumping, waste plugging, poor flaring and uneven trimming of the mold

  1. Scrap jumping

  2. a. If the punch is not long enough, replace the punch according to one material thickness plus 1mm when the punch cutting edge cuts into the female die
    b. Excessive clearance of female die Cut in tool to reduce clearance or use coating machine to reduce clearance
    c. The punch or template is not demagnetized. Use a demagnetizer to demagnetize the punch or template
  3. Waste plugging

  4. a. The blanking hole is small or deviated, and the blanking hole is enlarged to ensure smooth blanking
    b. The blanking hole has a chamfer. Increase the blanking hole to remove the chamfer
    c. Cut taper or reverse expansion hole to reduce the length of straight wall position
    d. The straight wall position of the knife edge is too long and the reverse side is drilled to shorten the straight wall position of the knife edge
    e. The cutting edge collapses, resulting in a large flaring edge, and the material is blocked and the cutting edge is reground
  5. Poor tip

  6. a. The edge is broken, causing excessive flaring and regrinding the edge
    b. The clearance between the punch and the female die is too large, cut the line into the block, and re fit the clearance
    c. Straight wall position of polishing edge with poor finish of concave die edge
    d. If the clearance between the punch and the die is too small, the die shall be saved again, and the clearance shall be provided
    e. If the ejecting force is too large, pull out the flaring edge reversely to replace the spring, reducing the ejecting force
  7. Uneven trimming

  8. a. Positioning offset adjusting positioning
    b. Unilateral forming, pulling, increasing pressing force, adjusting positioning
    c. Design error, causing unevenness of the cutter, and cutting the edge insert with new lines
    d. Feeding is not allowed to adjust the feeder
    e. Recalculate the feeding step if the calculation is wrong, and reset the tool position

Scrap jumping, waste plugging, poor flaring, and uneven trimming are common problems that can occur during mold processing. Scrap jumping occurs when the mold produces products with excessive burrs or flash, which affects the product's appearance and performance.

Waste plugging occurs when the mold cavity or runner is blocked, leading to incomplete product formation or even equipment damage. Poor flaring occurs when the product's edge is uneven, leading to poor aesthetics and performance. Uneven trimming occurs when the trimming process is not precise, leading to product size deviations or other quality issues. To avoid these problems, mold processing technicians need to have a deep understanding of the processing parameters, materials, and equipment used in the process. Proper training and regular maintenance can also help to prevent these issues.

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