High-strength automobile axle housing material and method for manufacturing axle housing

Abstract

The invention discloses a high-strength automobile axle housing steel plate material and a method for manufacturing the axle housing. The axle housing is formed by punching and welding a hot continuous rolling steel plate, wherein the hot continuous rolling steel plate comprises the following chemical ingredients in percentage by weight: 0.10 to 0.20 percent of C, 0.20 to 0.60 percent of Si, 1.00 to 1.70 percent of Mn, less than or equal to 0.025 percent of P, less than or equal to 0.010 percent of S, less than or equal to 0.05 percent of Ti, less than or equal to 0.20 percent of V, less than or equal to 0.10 percent of Nb, less than or equal to 0.30 percent of Cr, less than or equal to 0.80 percent of Ni, less than or equal to 0.55 percent of Cu, 0.020 to 0.065 percent of Alt, less than or equal to 0.22 percent of Nb and V and Ti and the balance of Fe and inevitable impurities. The axle housing is high in strength, stamping formability and welding performance; and after the axle housing material is subjected to hot compacting, the problem of the deformation of an axle housing assembly which is subjected to profiling, welding and machining is solved by adjusting parameters of a welding process, welding materials and a process, so that the axle housing is reliable and stable in performance and long in fatigue life.

Description

technical field [0001] The invention relates to the technical field of automobile axle housings, in particular to a high-strength automobile axle housing material and a manufacturing method for the axle housings. Background technique [0002] Weight reduction and energy saving are one of the themes of automobile development at present. With a certain reduction in weight, trucks can carry more goods of corresponding weight, and can also reduce the consumption of raw materials required for manufacturing bicycles. In an environment where the country encourages weight reduction and energy saving, fully tapping the weight reduction and lightweight potential of auto parts is a long-term task for material technicians in the automotive industry. The axle is one of the main components of the entire vehicle driving system, supporting the frame and the weight of each assembly on the frame, and protecting the components in the transmission system. Among them, the axle housing is one of...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is exactly in order to solve the above-mentioned problems existing in the prior art; Provide a kind of high-strength automobile axle housing material; Have material strength high, stamping formability is good and have good welding performance, after the axle housing material hot pressing forming, through Adjust the welding process parameters, welding materials and process flow, and solve the deformation problem of the axle housing assembly after pressing, welding and machining. The performance of the axle housing is reliable and stable, and the fatigue life is high

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