Forging method of 7-type AerMet100 ultrahigh-strength steel forge piece

Abstract

The invention belongs to the field of forging hot working, and relates to a forging method of a 7-shaped AerMet100 ultrahigh-strength steel forge piece. Comprising the following steps: step 1, selecting a bar as a blank, wherein the sectional area of the blank is 1.1-1.25 times of the sum of the sections of a forge piece and burrs; 2, a material distribution groove is machined, and the blank is divided into a head material and a rod material through the groove; 3, the blank is placed on a hammer anvil, and head material division is conducted with the groove as the boundary; eccentrically drawing out the rod part material, wherein one side face of the eccentric rod is flush with one side face of the head part; 4, after the blank is turned over by 90 degrees, head rods are distributed, and the head rods and the tips of the head rods are pressed; and 5, shaping the blank obtained in the step 4 to obtain a 7-shaped blank. And the qualified rate of products is improved.

Description

technical field [0001] The invention belongs to the field of forging thermal processing, and relates to a forging method of a "7" type AerMet100 ultra-high-strength steel forging. Background technique [0002] There are often some "7" type forgings with special shapes in aviation products, such as figure 1 As shown, the shape and structure of this type of forging is characterized by the long rod 1 having a large volume and using more materials, the head rod 2 being short and using less material, the long rod 1 and the head rod 2 form a certain angle θ, and the head 3 is relatively small. The head rod 2 is bulky. For this "7" type forging, at present, the traditional manufacturing process is to use billet + bending forming ( figure 2 , figure 2 The bending arrow in indicates the bending direction) + the method of die forging. The problems of this method are: in the bending forming process, special tooling is needed, and the operation is difficult, the fire is frequent, ...

AI Technical Summary

Problems solved by technology

The problems of this method are: in the process of bending and forming, special tooling is needed, and the operation is difficult, the number of fires is high, the R is prone to pinching, and the production efficiency is low.

For AerMet100 ultra-high-strength steel with multiple fires and small deformation, problems such as coarse grains and unqualified performance are likely to occur, resulting in the scrapping of forgings

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