Processing process of axle shaft sleeve

Abstract

The invention discloses a processing process of an axle shaft sleeve. The processing process is characterized by comprising the following steps that 1, precision forging of the axle shaft sleeve is carried out, wherein precision forging of the axle shaft sleeve comprises extrusion forming and finishing forging of the axle shaft sleeve, and extrusion forming of the axle shaft sleeve comprises a sorting procedure, a first extrusion forming procedure, a second extrusion forming procedure, a third extrusion forming procedure and a fourth extrusion forming procedure; 2, the axle shaft sleeve is installed and welded; 3, finishing turning is carried out on the axle shaft sleeve. Compared with an original process, the weight of an axle shaft sleeve forge piece is reduced, the weight of one axle shaft sleeve forge piece of a light truck series is reduced by about two kilograms, and the weight of one axle shaft sleeve forge piece of a heavy truck series is reduced by about three kilograms; the time spent in processing the one axle shaft sleeve is shortened by about 0.5 hour; the coaxiality and consistency of the central line of an axle housing and axes of inner holes of axle shaft sleeves at the two ends of the axle housing are better.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a processing technology of a half shaft sleeve. Background technique [0002] The semi-axle sleeve is an important part used on the automobile drive axle. The outer surface of the semi-axle sleeve is equipped with a wheel hub and a brake, and its inner hole has a semi-axis to pass through. The half-axle bushing bears about 70% of the weight of the whole vehicle, and bears alternating impact loads when the vehicle is running, and its working conditions are relatively harsh. Therefore, the half-shaft casing should have high dimension accuracy and good strength and toughness. [0003] The material of the half-shaft casing is 45﹟, 40Cr and other high-quality medium-carbon low-alloy structural steel. At present, the forging and subsequent processing technology of the half-shaft casing is: forging→rough turning→assembly welding→finish turning. [0004] Forging: There are two stru...

AI Technical Summary

Problems solved by technology

As mentioned above, the precision of the half-shaft sleeve forgings produced by the current domestic half-shaft sleeve forging process is low, resulting in more follow-up processing procedures for the half-shaft sleeve forgings, such as: the half-shaft sleeve needs rough turning, finishing The inner hole of the casing of the rear axle shaft needs to be bored; the utilization rate of steel is low, and the processing time is long

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