Friction-stir welding blank-making device for aluminium alloy hub, and treatment process thereof

Abstract

The invention provides a friction-stir welding blank-making device for an aluminium alloy hub, and a treatment process thereof, and belongs to the technical field of hub welding. The friction-stir welding blank-making device for the aluminium alloy hub comprises a rotary device arranged on a workbench, a location device arranged on the rotary device and a compression device arranged on the location device, wherein the compression device comprises a compression head arranged on a lower hub sheet in a sleeving manner and a compression disc compressing an upper hub sheet. According to the friction-stir welding blank-making device for the aluminium alloy hub, and the treatment process thereof, the upper hub sheet with a thickened weld and the lower hub sheet with a thickened weld are installed between the rotatable compression head and compression disc, and welding for the upper hub sheet and the lower hub sheet is realized through rotation and in combination with the welding of a welding head, so that production for the hub is realized; and the hub is subjected to cutting machining after being welded, a thermal mechanical affected zone formed due to welding is removed, and the consistency of the performance of the welds and the performance of a matrix is ensured, so that a better product quality and a wider application range are achieved.

Description

technical field [0001] The invention relates to the technical field of wheel hub welding, in particular to an aluminum alloy wheel hub friction stir welding blank making device and a processing technology thereof. Background technique [0002] With the development of the automobile industry, the demand for the supporting parts of the automobile is also growing rapidly. As the most important part of the automobile parts, the wheel hub can realize the production of the wheel hub reasonably and quickly, and improve the quality of the wheel hub. the key of. [0003] At present, the wheel hub products on the market are welded by friction stir welding of two pieces of wheel hub blanks with the same thickness. It will leave a heat-affected zone at the welding place of the two wheel hub blanks, resulting in the strength of the welded joint performance being lower than that of the matrix structure, and the joint performance can only reach 90% of the matrix structure, resulting in lo...

AI Technical Summary

Problems solved by technology

[0003] At present, the wheel hub products on the market are welded by friction stir welding of two pieces of wheel hub blanks with the same thickness. It will leave a heat-affected zone at the welding place of the two wheel hub blanks, resulting in the strength of the welded joint performance being lower than that of the matrix structure, and the joint performance can only reach 90% of the matrix structure, resulting in low quality of the hub, which limits other aspects Applications

[0004] To sum up, the existing wheel hub welding method has the problem that the performance of the product after welding is lower than that of the matrix structure, which is not conducive to the welding method and the application of the product in other aspects

Images