Method for axially feeding, extruding, rolling and forming spline shaft by medium-frequency and high-frequency sensing heating

Abstract

The invention discloses a method for axially feeding, extruding, rolling and forming a spline shaft by medium-frequency and high-frequency sensing heating; firstly, a work piece is clamped; the surface of an end area of a spline section which is formed on the work piece is heated; an extrusion rolling forming mould extrudes, rolls and forms a section to be heated; the section to be heated enters a forming area of a medium-frequency and high-frequency sensing heater to be continuously heated under axial feeding motion; the extrusion rolling mould completes the extrusion rolling formation to splines on the work piece; the medium-frequency and high-frequency sensing heater is arranged between the extrusion rolling forming mould and a work piece clamping position; the medium-frequency and high-frequency sensing heater only heats the local area of a surface to have plastic deformation in the forming area of a part to have extrusion rolling deformation; and the method for axially feeding, extruding, rolling and forming the spline shaft by medium-frequency and high-frequency sensing heating has the advantages of small spline forming force, little heat loss, energy saving, capability of processing spline parts with large material deformation resistance, capability of processing slender shafts and large modulus, high formation precision and surface quality, high production efficiency, wide processing scope and the like.

Description

technical field [0001] The invention belongs to the technical field of advanced material forming, and in particular relates to a method for axially feeding, extruding, rolling and forming a spline shaft by medium and high frequency induction heating. Background technique [0002] The spline is a key part used to transmit force and torque in the mechanical system. As a connection method with high connection strength, compact structure and high reliability, the spline connection is widely used in automobiles, various vehicles and equipment manufacturing industries. . [0003] With the rapid development of the automobile industry, the demand for high-strength and high-precision splines, especially long spline shafts, is increasing and the requirements for use are constantly improving, which poses new challenges to the processing technology and equipment of traditional splines. Spline processing technology is mainly divided into traditional cutting and plastic forming processin...

AI Technical Summary

Problems solved by technology

At present, due to the many advantages of warm forming, many scholars have carried out extensive research on this process, which has been applied to many production occasions and achieved satisfactory results, such as warm deep drawing forming, warm extrusion forming, warm forging precision forming, etc., but Warm forming technology has not been applied to plastic processing of axial feed extrusion roll forming splines

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