Technique for processing honing tube

Abstract

The invention relates to a processing technique for a honing pipe in the fields of aerospace and pressure machinery and the like, in particular to the processing technique for the honing pipe with the tensile strength of not less than 1,140 MPa, the yield strength of not less than 1,030 MPa, the tensile stretch of not less than 16 percent and the specific elongation of not less than 38 percent, and higher requirement on the processing precision. The adopted process is to select a TC4 titanium alloy bar material with proper dimension to finish the processing of the honing pipe with the stated dimension and requirements through the steps of straightening, boring deep holes, honing, turning, polishing and the like according to the processes of roughing, open die forging and heat treatment. The processing technique is simple and efficient with low cost, and satisfies the use requirements on high-performance honing pipes in the fields of aerospace and pressure machinery and the like in China.

Description

technical field [0001] The invention relates to the processing technology field of a honing tube, in particular, the tensile strength is not less than 1140Mpa, the yield strength is not less than 1030Mpa, the elongation is not less than 16%, and the elongation is not less than 38%. The processing technology field of honing tubes that require high processing accuracy. Background technique [0002] At present, honing tubes are often used in aerospace, pressure machinery and other fields such as aircraft landing gears and oil cylinders, especially in important parts such as aircraft landing gears. The requirements for some honing tubes are: the tensile strength is not less than 1140MPa, the yield strength is not less than 1030MPa, the elongation is not less than 16%, and the elongation is not less than 38%, and the processing accuracy of the honing tube is higher. The conventional manufacturing method is to process ordinary titanium, steel and other rods or pipes into pipes wi...

AI Technical Summary

Problems solved by technology

The conventional manufacturing method is to process ordinary titanium, steel and other rods or pipes into pipes with required external dimensions by mechanical processing methods such as drawing, and then use high-pressure water or artificial diamond knife cutting to process the inner holes of the pipes. Made into honing tubes, but the manufactured honing tubes cannot meet the mechanical properties and processing accuracy requirements of the above-mentioned honing tubes at the same time, and can only meet the general use purposes, and cannot meet the use requirements of my country's aerospace, pressure machinery and other technical fields

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