Machining method for titanium alloy thin-walled part

Abstract

The invention provides a machining method for a titanium alloy thin-walled part. The method effectively improves the machining efficiency and machining precision of the thin-walled part and ensures the economic performance of machining. The method comprises the steps of S1, clamping: fixing a machining workpiece on a machining tool, and reserving a feeding path of a cutter; S2, rough machining: conducting layered milling to remove blank quantity along the upper end to the lower end of the machining workpiece, and thus forming a ladder-like thin-walled part; S3, semi-finish machining and finishmachining: conducting layered machining for the ladder-like thin-walled part along the upper end to the lower end; and milling the uppermost layer of surface type, and then milling the next layer ofsurface type along a ladder. When the next layer of surface type is milled by a milling cutter, the last layer of machined surface type is milled and dressed synchronously under the same cutting condition. By the layered milling for the machining workpiece, the method is beneficial to discharge of cuttings and can effectively take away the cutting heat. The remain of blanks is effectively removed,so that the vibration frequency of the cutter is different from the natural frequency of a machine tool, and stability of the machining process is guaranteed.

Description

technical field [0001] The invention relates to the field of processing technology of thin-walled parts, in particular to a method for processing titanium alloy thin-walled parts. Background technique [0002] With the rapid development of my country's aerospace industry, due to the characteristics of high specific lightness and high specific heat of titanium alloys, the demand for thin-walled titanium alloy parts in the aerospace field is also increasing. However, due to poor processing performance of titanium alloys and thin The metal removal rate of wall parts is high in the process of processing, which is easy to cause serious tool wear, and the characteristics of thin-wall parts are easy to deform, which seriously restricts the processing efficiency and affects the processing accuracy of parts. [0003] At present, common processing methods for thin-walled parts include plunge milling and auxiliary support processing. The method of plunge milling has low processing effi...

AI Technical Summary

Problems solved by technology

The method of plunge milling has low processing efficiency, it is easy to cause tool wear during processing, and the processing economic performance is poor

The method of auxiliary support processing needs to design a specific fixture, and the process is cumbersome

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