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Eight properties of copper forging

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Copper forging generally through forging, machining, heat treatment and other processes. In order to ensure the quality of mold manufacturing, reduce the production cost, the materials should have good ductility and machinability, hardenability and hardenability and grindability; should have oxidation, decarburization sensitivity and quenching cracking tendency of small deformation.

1, malleable: with a lower hot forging deformation resistance, good plasticity, forging temperature range, forging cold cracking and carbide precipitation network tendency is low.

2, annealing process: the annealing temperature range is wide, the annealing hardness is low and the fluctuation range is small, the rate of the ball is high.

3, cutting processing: the amount of cutting, cutting tool loss is low, the processing surface roughness is low.

4, oxidation and decarburization sensitivity: when heated to high temperature oxidation with good decarburization rate is slow, not sensitive to the heating medium, produce pitting tendency.

5, quenching hardness: after quenching with uniform and high surface hardness.

6, quenching: after quenching can get a deeper hardened layer, the use of the quenching medium can quench hardening.

7, quenching deformation cracking tendency: the conventional quenching volume change is small, the shape is warped, the distortion is slight, the abnormal deformation tendency is low. The quenching cracking sensitivity is low, which is not sensitive to the quenching temperature and the shape of the workpiece.

8, grinding: grinding wheel is relatively small loss, no limit of grinding burn of large amount, is not sensitive to the quality of the grinding wheel and the cooling conditions, not prone to abrasion and grinding crack.

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