Closed die forging die and closed die forging method
A technology of die forging and occlusion, which is applied in the direction of manufacturing tools, forging/pressing/hammer devices, forging/pressing/hammering machinery, etc., can solve the problems of complex shape, large deformation, large forging volume, etc., and reduce production costs , The effect of reducing the failure rate
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Embodiment 1
[0021] Such as figure 1 , figure 2 , image 3 , is a schematic diagram of a closed die forging die for a joint flange (also known as "flange fork"), including an upper die 2 and a lower die 3, and the upper die 2 is provided with a barrel 4 and a punch 1. The punch The rod 1 extends into the barrel 4 .
[0022] The die forging method of the joint flange is as follows:
[0023] Step a: heating the blank, opening the closed forging die, and putting the blank into the cavity of the closed forging die;
[0024] Step b: Close the upper mold 2 and the lower mold 3, and lock the upper mold 2 and the lower mold 3;
[0025] Step C: the punch rod 1 is punched down in the barrel 4, so that the blank fills the entire die cavity;
[0026] Step D: Open the closed forging die after the blank is formed by die forging, and take out the forging.
[0027] After forging, trimming, shot blasting, cold finishing, turning and other processes can also be carried out.
Embodiment 2
[0029] Such as Figure 4 , Figure 5 , is a schematic diagram of a closed die forging die for a triangular flange, and its basic structure is the same as in Example 1 except that the cavity shape is different from that of Example 1.
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