A kind of artificial joint parts abrasive flow turbulent flow polishing variable temperature processing method

Abstract

The invention discloses a joint prosthesis part abrasive flow turbulence polishing varying-temperature processing method, which comprises the following steps of (1) building a profiling runner; (2) establishing a relational expression of tubulence energy h and turbulence intensity I of an abrasive flow in the profiling runner; (3) establishing a kinetic energy loss formula of the abrasive flow; (4) combining a computational formula of the tubulence energy and a computational formula of linear loss and local loss so as to establish a relation expression of temperature and a processing route; (5) setting multiple electromagnetic wave heating sources along the side face of the profiling runner according to a temperature compensation function T; and (6) carrying out temperature compensation on each position in the profiling runner through independently adjusting each electromagnetic wave heating source. According to the joint prosthesis part abrasive flow turbulence polishing varying-temperature processing method provided by the invention, the temperature variation of the abrasive flow in the profiling runner is intuitively reflected in real time through establishing the temperature compensation function, so that the temperature compensation is carried out conveniently on each position in the profiling runner, the electromagnetic wave heating sources are accurately controlled conveniently, and the homogeneity in a processing process is ensured.

Description

technical field [0001] The invention relates to the technical field of abrasive flow polishing, and more specifically, relates to a method for turbulent abrasive flow polishing and variable temperature processing of similar artificial joints. Background technique [0002] Artificial joint is an artificial organ designed by people to save joints that have lost their function. It has the best curative effect among artificial organs. The commonly used materials for artificial joints are metal alloys. Among them, special titanium alloys are suitable for the manufacture of artificial joints because of their biocompatibility, corrosion resistance, and elastic modulus, which are close to those of human bones. The surface quality of artificial joints determines the surface friction properties. The greater the roughness, the higher the contact probability of asperities on the surface, resulting in increased adhesive wear. As we all know, titanium alloy has poor processing technology...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problem that the turbulent total kinetic energy of the abrasive particle flow changes with time during the turbulent precision machining process of the existing artificial joint parts, which leads to the poor uniformity of the machining effect in the entire machining process, and provides a kind of artificial joint. Abrasive flow turbulent flow polishing of joint parts with variable temperature processing method

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