Machining method of valve assembly made of dissimilar materials

Abstract

The invention discloses a processing method of a valve assembly made of dissimilar materials, and particularly relates to a processing method of a valve assembly made of metal and non-metal dissimilar materials in a novel carrier rocket pressurized conveying system, which comprises the following steps of: 1, planning processing strategies of different areas according to the distribution condition of the dissimilar materials on the end surface of the valve assembly; secondly, the structure of a machining tool is improved, and technological parameters of the machining tool are optimized; thirdly, machining of the end face of the core characteristic dissimilar material in the valve assembly is achieved; and fourthly, machining of all the characteristics of the assembly is completed. According to the method, efficient precision machining forming of the dissimilar material end face of the valve assembly can be achieved, the surface machining quality and machining efficiency of the end face of the valve assembly are effectively improved, the sealing performance of the valve assembly is greatly improved, and the sealing reliability of a valve structure of a carrier rocket pressurized conveying system under the complex working condition is guaranteed.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a processing method for a valve assembly composed of different materials. Background technique [0002] With the vigorous development of China's aerospace industry, a new generation of launch vehicles shoulders the launch tasks of various types of space vehicles, which effectively guarantees the development of the national space science field. The core product of the new-generation launch vehicle fuel pressurization delivery system is the valve. Various valves are opened and closed in a precise and orderly manner to realize the precise transmission of fuel in the pressurized delivery system, control the fuel supply pressure of the engine, and directly affect the flight status of the launch vehicle. [0003] The key component of the valve opening and closing is the valve assembly. The valve assembly refers to a product that is machined into a valve assembly blank made by placi...

AI Technical Summary

Problems solved by technology

Solve the quality problems such as lack of non-metallic surface materials and roughness in the processing of valve components, solve the manufacturing problems of valve components composed of dissimilar materials, improve the processing quality of the end faces of dissimilar materials of valve components, and reduce the quality cost of valve component production. Improve product processing efficiency

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