A method for raising the temperature of abrasive particle flow in turbulent flow machining of similar artificial joints

Abstract

The invention discloses a method for heating abrasive flow in turbulent flow processing of a similar-artificial joint. The method comprises the following steps: (1) establishing a profiling flow channel; (2) establishing a simulating model of the abrasive flow; (3) calculating a temperature compensation curve required for the profiling flow channel on the basis of tubulence energy of the abrasive flow and linear loss and local loss of the tubulence energy; (4) obtaining a temperature curve in the flow channel of the abrasive flow on the basis of the simulating model; (5) calculating a heating temperature curve; (6) equally dividing the profiling flow channel into N sections, wherein N ranges from 10 to 30; (7) mounting N electromagnetic wave heating sources on a side surface of the profiling flow channel; and (8) adjusting the working efficiency corresponding to each electromagnetic wave heating source 3 according to the heating temperature curve in the step (5). The fluid simulating model is established to obtain the heating temperature curve, temperature change of the abrasive flow in the profiling flow channel is visually reflected in real time, the electromagnetic heating sources are accurately controlled by the heating temperature curve, and therefore, uniformity of processing is guaranteed.

Description

technical field [0001] The invention relates to the technical field of abrasive flow polishing, and more specifically, relates to a method for raising the temperature of abrasive flow during turbulent flow 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 techno...

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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 of the existing artificial joints, which leads to the poor uniformity of the machining effect in the entire machining process, and provides a guarantee Method for raising the temperature of abrasive particle flow during turbulent flow processing of similar artificial joint parts with stable abrasive flow temperature during processing

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