Radial forging type strain-induced semi-solid die forging process for outer cylinder forged piece of aircraft landing gear
A technology for aircraft landing gear and semi-solid die forging, which is used in metal processing equipment and other directions, can solve the problems of low fatigue strength and stability, high mold heating temperature, and large forging forming force, etc. Low pressure and uniform distribution
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[0021] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0022] refer to figure 1 , the radial forging type strain-induced semi-solid die forging process of aircraft landing gear outer cylinder forgings, comprising the following steps:
[0023] 1) Preliminary deformation of the bar: first prepare the metal bar 1 made of ultra-high-strength steel or titanium alloy for forming the forging of the outer cylinder of the aircraft landing gear; then preheat the metal bar 1 and perform repeated upsetting and elongation , to obtain a distorted metal rod 2 that stores distortion energy;
[0024] 2) Bar radial forging: refer to figure 2 , image 3 , Figure 4 and Figure 5 , using residual heat to radially forge the distorted metal bar 2 obtained in step 1) to obtain a radially forged distorted billet 3, specifically: using a radial forging machine to symmetrically distribute four hammerheads 6 around the billet, High-frequenc...
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Abstract
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