Die Forging Process and Die of High Silicon Aluminum Alloy Swash Plate

Abstract

High-silicon aluminum alloy swash plate die forging process, the plastic forming of the die forging is realized by the small flash open forging die. The heating temperature is 500°C±5°C, the die preheating temperature is 200°C±5°C, and the small flash die forging process directly die-forges the heated aluminum alloy bar into a swash plate die forging with small flash. The die is an open forging die with small flash, which is composed of an upper punch, a lower punch and an extrusion cylinder. The die adopts a separable structure. 3mm, thickness of 0.5mm ring-shaped uniform gap, that is, the flash groove, the draft angle of all surfaces in contact with the extrusion cylinder is less than or equal to 5 degrees, the process flow of the invention is reasonable, the process parameters and performance are stable, the mold structure is simple, It is easy to manufacture, install and use, and works reliably.

Description

technical field

[0001] The invention relates to a high-silicon aluminum alloy swash plate die forging process and mold, which can be directly used in the die forging production of key parts such as automobiles, airplanes and household air-conditioning compressors, which use high-silicon aluminum alloy as materials, and belong to the plastic forming of metal materials Field with mold technology. Background technique

[0002] The swash plate is a key part of the air-conditioning compressor. It drives the piston to reciprocate and work back and forth under high-speed rotation, and the frequency is extremely high. Therefore, the material is required to have the characteristics of high strength, high hardness and good wear resistance. Generally, aluminum-silicon series cast aluminum is used. alloy.

[0003] The content of Si element in A390 aluminum alloy is 16-18%. It is a high-silicon aluminum alloy. It is an American brand of hypereutectic casting aluminum-silicon alloy mater...

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