Method and device for induction-assisted shot peening refining laser additive manufacturing of light alloy grains

Abstract

The invention discloses a method and device for induction-assisted shot peening refining additive manufacturing of light alloy grains, and belongs to the technical field of laser additive manufacturing. The device comprises a closed processing cabin, a base body located in the closed processing cabin, a first induction coil arranged around a cladding layer above the base body, an infrared temperature measuring device located above the cladding layer, a converter located in the closed processing cabin, a Laval nozzle and a laser cladding head, wherein the Laval nozzle and the laser cladding head are oppositely arranged on the two sides of the converter. The Laval nozzle and the laser cladding head alternately appear above the cladding layer through clockwise rotation of the converter, laser cladding additive manufacturing under high-temperature shot peening strengthening treatment is achieved, internal structure defects of a light alloy are effectively eliminated, the spheroidizing process of the structure is promoted, and the alloy grains are refined; and in addition, the converter is adopted to realize the operation that workpiece changing and equipment replacement do not need to be carried out between the two working procedures of laser cladding and high-temperature shot peening strengthening treatment, the machining efficiency is high, and the working reliability is high.

Description

Technical field [0001] The present invention relates to the field of laser additive manufacturing, laser desertification, and laser thermal spraying techniques, and more particularly to a method and apparatus for inductive auxiliary shot auxiliary laser adding material to produce a light alloy grain. Background technique [0002] Most of the core key components of modern high-end equipment are the causes of moving parts, wear, corrosion, fatigue, etc., causing frequent damage to core key components and even fail, threat equipment long-term reliable operation, causing a large number of expensive core key components to scrap, thus Higher economic losses, resource waste, and energy waste. [0003] With the continuous improvement and development of aerospace technology, the demand and quality requirements of high performance materials are further improved, with the most representative titanium alloy in the light alloy as an example, from the date of self-production, because of its hi...

AI Technical Summary

Problems solved by technology

Under this temperature field, the molten pool solidifies instantaneously, forming coarse columnar crystals penetrating through several cladding layers along the temperature gradient direction, which eventually leads to problems such as poor comprehensive mechanical properties of formed parts and prominent anisotropy.

Images