Machining method of aluminum-based silicon carbide launch tube

Abstract

The invention provides a machining method of an aluminum-based silicon carbide launch tube. The machining method comprises the following steps of step one, rough turning, wherein rough turning of theouter circle and an inner hole of a launch tube blank is carried out according to the design size with a special tool, and one-sided allowance of 2 mm is reserved; step two, artificial aging treatment, wherein firstly the temperature of the launch tube blank is heated to 490 DEG C, then the temperature is kept for 3 hours, then water cooling is carried out, when the temperature of the launch tubeblank drops to 190 DEG C, the blank is taken out, and the temperature is kept for 8 hours; and step three, semi-finish turning, wherein semi-finish turning of the outer circle and the inner hole of athin tip end of the launch tube blank is carried out, and one-sided allowance of 0.5 mm is reserved. The machining method has the beneficial effects that the aluminum-based silicon carbide launch tubeis machined through a novel machining technology, the residual stress inside an aluminum-based silicon carbide material can be eliminated in time during the machining process, the stability of the machining size of the launch tube is ensured, roughness of the surface of the launch tube can be avoided through using the novel tool, the accuracy of the shape and position tolerance is effectively ensured, the wear of the tool is also delayed, and the practicability is good.

Description

technical field [0001] The invention relates to the field of aerospace processing, in particular to a processing method for an aluminum-based silicon carbide launching cylinder. Background technique [0002] Aluminum-based silicon carbide is the abbreviation of aluminum-based silicon carbide particle-reinforced composite material. It fully combines the different advantages of silicon carbide ceramics and metal aluminum, with high thermal conductivity, thermal expansion coefficient matching the chip, low density, light weight, and High hardness and high flexural strength. It is the leader in the new generation of electronic packaging materials, which meets the requirements of lightweight and high-density packaging. It is especially suitable for use in aviation, aerospace, high-speed rail, and microwave fields. It is the first choice for solving thermal management problems, especially for It is widely used in the aerospace field that requires high heat resistance and deformat...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a new processing method for the aluminum-based silicon carbide launch tube in order to solve the above problems, to solve the difficulty of processing the aluminum-base silicon carbide launch tube with the existing conventional processing technology, serious tool wear, and The surface of the launching tube is rough, and the shape and position tolerance cannot be guaranteed, etc.

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