Weldless integrated forged axle housing manufacturing process

Abstract

The invention provides a manufacturing process of an integrally forged and pressed axle housing without a welding seam, and belongs to the technical field of machinery manufacturing technology. The manufacturing process of the integrally forged and pressed axle housing without the welding seam comprises the steps that roll forging refining is carried out on a primary blank through a forge rolling machine, then a friction press is used for stamping a central pot, the central pot is loaded into a combined module, extrusion forming is carried out through a multi-head extruding machine, overall shaping is carried out through a comprehensive molding press, flanges and burrs are removed through an edge grinding machine, the combined module is taken out to finish the precision forging of the blank, the blank is placed into a normalizing furnace for aging normalization, flaw detection observation is carried out on the blank after the blank is cooled, cold pressing and correction are carried out on the blank, coarse cooling processing is carried out on the overall blank, quenched-tempered heat treatment is carried out, finish machining is carried out on the blank in all directions after cooling, a bulge test is carried out the blank, paint is sprayed on the blank, and the blank is packaged and put in storage. The manufacturing process of the integrally forged and pressed axle housing without the welding seam improves the quality of products, improves the rigid strength, compression resistance, fracture resistance and tenacity of the products, overcomes the defect of oil impregnation and leakage of welded axle housings and cast steel axle housings, and lightens the weight of products. By means of the process, production efficiency is largely improved, and production cost is largely lowered.

Description

technical field [0001] The invention relates to the technical field of mechanical manufacturing technology, in particular to a welding-free integrated forging axle housing manufacturing technology. Background technique [0002] The axle housing is the basic part for installing the main reducer, differential, half shaft, wheel hub and suspension. Its main function is to support and protect the main reducer, differential and half shaft. At the same time, the axle housing is one of the main components of the driving system. The drive axle housing should have sufficient strength and rigidity, low mass, and facilitate the disassembly and adjustment of the main reducer. There are defects and deficiencies in the quality of axle housing products in traditional technology, and the steel strength, compressive resistance, flexural resistance and toughness of the products cannot meet the needs of use or work well; when oil leakage occurs in welded axle housings and cast steel axle hous...

AI Technical Summary

Problems solved by technology

There are defects and deficiencies in the quality of axle housing products in traditional technology, and the steel strength, compressive resistance, flexural resistance and toughness of the products cannot well meet the needs of use or work; when oil leakage occurs in welded axle housings and cast steel axle housings There are occurrences; the insurance factor cannot be fully guaranteed, and the service life is very limited; and the production efficiency of the axle housing at this stage is low, and the production cost is relatively high

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