Forging process of scroll for novel energy automobile integral type scroll compressor

Abstract

The invention discloses a forging process of a scroll for a novel energy automobile integral type scroll compressor. According to the forging process, a forging die is involved, the forging die comprises an upper die and a lower die, the lower die comprises cavities, the cavities comprise an upper mold cavity and a lower mold cavity, wherein the upper mold cavity is located in the upper portion and is used for forming the bottom of a scroll, the lower mold cavity is positioned at the lower portion and is used for forming a scroll wall, a back pressure body is arranged in the lower die, and anejection mechanism used for driving the back pressure body to eject a forge piece is arranged below the back pressure body. The forging process comprises the following steps that S1, blanking is conducted, a blank is cut into a disc-shaped blank with the phi 104 * 17 mm-phi 104 * 19 mm; S2, heating is conducted, the heating temperature is controlled to be 400-450 DEG C, and an automatic feeding mechanism is using for pushed 4-5 blanks into a intermediate frequency furnace every minute; S3, finish forging is conducted, and the back pressure is controlled to be 10-16T. According to the technicalscheme, the process has the advantages that back pressure forging is adopted, the lower cavity can be guaranteed to be uniformly filled, so that the forming problem that a forge piece is large in high-thickness ratio and small in wall thickness is well solved.

Description

technical field [0001] The invention relates to the technical field of forging, more specifically, it relates to a forging process of a scroll used in an integrated scroll compressor of a new energy vehicle. Background technique [0002] The scroll compressor is a compressor with a compressible volume composed of a fixed involute scroll and an eccentric orbiting and translational involute moving scroll. The scroll compressor is made of two double-function equation-shaped moving and static scrolls meshing with each other. The vortex line of the scroll used in the integral scroll compressor of the new energy vehicle is complicated, the forming is difficult, the forming precision is high, the internal structure of the forging, the mechanical properties, the forging streamline and other requirements are high. The current process has a large machining allowance, and the scrap rate caused by insufficient filling of the upper end surface of the scroll is extremely high. The forgin...

AI Technical Summary

Problems solved by technology

The current process has a large machining allowance, and the scrap rate caused by insufficient filling of the upper end surface of the scroll is extremely high. The forging streamline is not good, the streamline is cut off after machining, and the strength of the parts is weakened.

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