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What are the major processes of hardware molds?

Source of information:internet Published on:2021-05-14

The manufacture of metal molds generally involves several processes such as forging, cutting, and heat treatment. Several major technological properties of hardware molds:

1. Forgeability:
   has low hot forging deformation resistance, good plasticity, wide forging temperature range, low forging cold cracking and low tendency to precipitate network carbides.

2. Annealing processability:
   The spheroidizing annealing temperature range is wide, the annealing hardness is low and the fluctuation range is small, and the spheroidizing rate is high.

3. Machinability:
   Large cutting amount, low tool loss, low surface roughness.

4. Sensitivity to oxidation and decarburization:
   Good oxidation resistance when heated at high temperature, slow decarburization speed, insensitive to heating medium, and little tendency to produce pitting.

5. Hardenability:
   has uniform and high surface hardness after quenching.

6. Hardenability:
  After quenching, a deeper hardened layer can be obtained, and it can be hardened by using a mild quenching medium.

7. Tendency of quenching deformation and cracking:

   The volume change of conventional quenching is small, the shape is warped, the distortion is slight, and the tendency of abnormal deformation is low. Conventional quenching has low sensitivity to cracking, and is insensitive to quenching temperature and workpiece shape.

8. Grindability:
   The grinding wheel is relatively low in wear, and the non-burn limit grinding consumption is large. It is not sensitive to the quality of the grinding wheel and cooling conditions, and does not cause abrasion and cracks in the grinding precision stamping die.

9. Blanking die:
   Separation of materials along a closed or open contour line. Such as blanking die, punching die, cutting die, slitting die, trimming die, cutting die, etc.

10. Bending die:
  Making sheet blanks or other blanks along a straight line (bending line) to produce bending deformation, so as to obtain a certain angle and shape of the workpiece mold.

11. Drawing die:
   is a mold that makes the blank of the sheet into an open hollow part, or makes the hollow part further change the shape and size of the mold.

12. Forming die:
   is a mold that directly replicates the blank or semi-finished workpiece according to the shape of the convex and concave molds, and the material itself only generates local plastic deformation. Such as bulging molds, necking molds, flaring molds, undulating forming molds, flanging molds, shaping molds, etc.
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