Stirring friction processing remanufacturing method of worn shaft type parts

Abstract

The invention discloses a stirring friction processing remanufacturing method of worn shaft type parts and belongs to a composite processing process for combining the stirring friction overlap welding and the stirring friction processing. Filling materials and worn shaft base body parent materials are overlapped and welded together by a non-consumptive eccentric stirring friction tool, in addition, the overlaying welding process of the filling materials on the shaft surface is realized through the stirring friction processing, and the latch remanufacturing of worn shafts can be realized through a series of standardized technical processes. A specific process consists of pretreatment (worn region cleaning and groove processing of the shaft type parts), accessory processing, (processing of a stirring tool, a filling metal belt, a lead-in lead-out metal belt, an annular clamp and a rotary device), installation and clamping fixation, stirring friction processing treatment, subsequent treatment and the like. The remanufacturing method of the worn shaft type parts provided by the invention belongs to the solid phase processing, the metallurgical bonding among the connecting region materials is adopted, the bonding intensity is high, the comprehensive mechanical performance is excellent, green and environment-friendly effects are realized, and the production efficiency is higher.

Description

technical field [0001] The invention belongs to the field of remanufacturing processing of waste engineering machinery parts, in particular to a friction stir processing remanufacturing method for shaft parts with surface wear. Background technique [0002] The remanufacturing of waste construction machinery parts is an important part of remanufacturing engineering, and one of the important ways to improve resource utilization and develop circular economy. Shaft parts are one of the widely used parts in the transmission mechanism of construction machinery. Due to the large transmission load and repeated loading, various wear failures often occur. Directly discarding partially worn shaft parts will cause serious waste of materials and energy. How to The continued use of worn shaft parts after remanufacturing is an urgent problem to be solved in remanufacturing engineering. Research and development of advanced remanufacturing methods for remanufacturing of worn shaft parts wi...

AI Technical Summary

Problems solved by technology

The invention adopts the friction stir welding and processing method to remanufacture the worn shaft parts, which can overcome the limitations of the current technology. The filler metal and the shaft base material are solid-phase metallurgical combination, and the grains of the structure are fine, which greatly improves the surface of the parts. Wear resistance, minimal residual stress and deformation, no melting defects

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