Forging process for improving metallographic tissue of gear piece billet
A technology of metallographic structure and billet, which is applied in the field of forging technology to improve the metallographic structure of billet of gear parts, can solve the problems of not attracting attention and high requirements, and achieve the effect of preventing structure inheritance, uniform composition of workpiece and good mechanical properties.
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[0017] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0018] Such as figure 1 As shown, the present invention is a forging process for improving the metallographic structure of a gear billet, characterized in that the forging process includes the following steps:
[0019] The first step: select the raw material produced by LF+VD smelting as the billet, and cut off the riser which accounts for 25%-30% of the total raw material;
[0020] The second step: heating the blank obtained in the first step to 950-1200 degrees;
[0021] Step 3: Put the billet heated in the second step into the forging press for forging. During the whole forging process, according to the dendrite segregation characteristics of each bill...
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