Semi-solid Process for Fabricating Aluminum Alloy Crankshafts of Air Conditioning Compressors Induced by Radial Forging Strain
An air-conditioning compressor, strain-induced technology, applied in engine components, mechanical equipment, metal processing equipment, etc., can solve the problem of inability to mass-produce large-sized semi-solid billets, large plastic deformation forming force, mechanical agitator Corrosion and other problems, to achieve the effects of good microstructure, reduced plastic forming force, and strong continuous production capacity
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[0018] The present invention will be further described in detail below by taking an aluminum alloy rod of Φ60 mm as an example in conjunction with the accompanying drawings.
[0019] refer to figure 1 and figure 2 , a semi-solid process for preparing an aluminum alloy crankshaft of an air-conditioning compressor induced by radial forging strain, including the following steps:
[0020] 1) Preheat the aluminum alloy bar, heat the Φ60 aluminum alloy bar to 250-350°C with the furnace and keep it warm for 30-40 minutes to ensure that the entire billet is heated through;
[0021] 2) Radial forging of aluminum alloy rods, that is, the preheated aluminum alloy rods are clamped by the manipulator and fed in the axial direction. The radial forging machine distributes four hammers symmetrically around the blank, and carries out high-frequency high-frequency forging along the radial direction of the blank. Reciprocating forging makes the billet elongate and thinner under the condition ...
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