Method for determining fillet radiuses of spinning rollers during spinning of tubular part by three spinning rollers

Abstract

The invention relates to a method for determining the fillet radiuses of spinning rollers during spinning of a tubular part by three spinning rollers. By comprehensively considering the influence rules of the diameter D of the tubular part, the initial wall thickness t0 of a spinning blank, the pass reduction amount delta t, the type and strength of metal materials, the rigidity of a spinning machine, the number of spinning rollers, spinning core mold parameters, a cooling mode and the flow of cooling liquid on the spinning forming precision of the three spinning rollers of the tubular part, the calculation method determines the fillet radiuses of the spinning rollers during three-spinning-roller spinning of the tubular part, and provides a basis for calculation and selection of the fillet radiuses of the spinning rollers of the high-precision thin-wall tubular part during three-spinning-roller spinning. The method is used for guiding the actual production and machining process, conveniently and rapidly setting the fillet radius parameters of the spinning rollers and stably forming a high-precision tubular spinning structural part, and has high machining precision and stability.

Description

technical field [0001] The invention relates to the spinning manufacturing industry, in particular to a method for determining the radius of the wheel fillet of a cylindrical part when the three-wheel spinning is performed. Background technique [0002] With the rapid development of my country's aviation, aerospace technology and national economy, the demand for thin-walled metal spinning cylindrical parts is becoming more and more urgent, and the precision requirements of parts are also getting higher and higher. Therefore, for The requirements for the stability, applicability, scientificity and quickness of parameter selection of the strong spinning process of cylindrical parts are also getting higher and higher. [0003] The corner radius of the rotary wheel is an important tooling structure parameter for the strong spinning process of cylindrical parts. Spinning production practice shows that within a certain range, when the radius of the fillet of the rotating wheel is ...

AI Technical Summary

Problems solved by technology

Some relevant literatures have proposed simple calculation methods for the radius of the spinner fillet during three-spinning of cylindrical parts. These calculation methods generally only make judgments on the structure and parameters of the spinner, and do not fully consider the spinning cylinder. The material of the shaped part, the diameter of the cylindrical part, the initial wall thickness of the spinning blank, and the thinning amount of the pass, etc., are not considered comprehensively, and the actual radius of the round corner of the spinning wheel often needs to be further adjusted according to the results of multiple trial spinning processes , does not have sufficient guiding significance for actual production, and the calculation formula is complex, the amount of calculation is large, and it does not have fast and convenient practicability