Earring forging forming method
A technology of forging and earrings, which is applied in the field of forging, can solve the problems of large and small section excessive parts folding, low material utilization rate, mold cavity wear, etc., to achieve the effect of reducing forming force, reducing processing allowance, and reducing equipment tonnage
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[0030] The earring forging molding method of the present embodiment comprises the following steps:
[0031] S1: Material selection: Select the appropriate bar material as the raw material according to the specifications of the required earring product, and the weight of the raw material is 1.18 to 1.2 times the weight of the earring product;
[0032] S2: Preliminary forging: the raw material in step S1 is forged into preliminary billet 1 through free forging, the process of preliminary forging includes:
[0033] S21: upsetting the raw material;
[0034] S22: Flip the upset blank by 90° and place it so that the processing surface in step S21 is perpendicular to the worktable;
[0035] S23: Continue forging to make the billet finally form the shape of the blank 1 .
[0036] Wherein, the cross-section of the blank 1 is as follows: figure 1 As shown, it is surrounded by two outwardly protruding arcs with different diameters and two tangents connecting the two arcs; the ratio of...
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