Bending and forming ammonia axial channel heat pipe based on laser induction

Abstract

The invention relates to a method for bending and forming an ammonia axial channel heat pipe based on laser induction. The method comprises the following steps of blanking an ammonia axial channel heat pipe raw material in a laser cutting manner, and milling a product notch, a hole site and a bending section fin according to a process drawing to obtain an ammonia axial channel heat pipe test piece; the surface of the test piece is coated with an ablation heat-proof material; and simulation is conducted on the laser-induced bending forming parameters of the test piece, the bending forming angle, the temperature distribution cloud picture and the stress-strain cloud picture of the test piece under the laser-induced bending forming parameters are determined, and the laser-induced bending forming parameters with the surface quality and the forming angle meeting the requirements of the test piece are determined through simulation. The ammonia axial channel heat pipe test piece is tested according to the determined laser-induced bending forming parameters, whether bending forming of the ammonia axial channel heat pipe meets the requirements or not after testing is judged, and if not, the laser-induced bending forming parameters are optimized, and the ammonia axial channel heat pipe test piece is tested again till the requirements are met.

Description

technical field [0001] The invention relates to a method for bending and forming an ammonia axial channel heat pipe. Background technique [0002] At present, ammonia axial channel heat pipes are mainly bent and formed by hand. After forming, there will be defects such as cross-section distortion, wall thickness thinning, and bending springback, which have always affected the qualification rate and quality of ammonia axial channel heat pipe products. It is difficult to automate product production. , batching, and standardization. The laser-induced bending forming does not rely on molds and manpower, which solves the problems of springback and thinning of the outer wall thickness, and saves a lot of manpower, material resources and financial resources. In practical engineering applications, laser-induced bending forming can integrate laser cutting, laser heat treatment and laser inspection, which can realize integrated product forming, improve the forming accuracy of the pro...

AI Technical Summary

Problems solved by technology

Foreign technicians have conducted a series of studies on laser-induced bending of pipes, but there is no in-depth research, especially for ammonia axial channel heat pipes.

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