Processing method of high-volume-fraction aluminum-based silicon carbide material

Abstract

The invention relates to a processing method of a high-volume-fraction aluminum-based silicon carbide material. The processing method is characterized by comprising the following steps: in a rough processing stage: S1, carrying out laser-induced oxidation treatment on the aluminum-based silicon carbide material to oxidize the surface of the aluminum-based silicon carbide material to form a loose oxide layer and a transition layer; S2, processing and removing the oxide layer on the surface of the induced aluminum-based silicon carbide material by adopting a hard alloy cutter; S3, repeatedly executing the steps of S1 to S2 until single-layer induced oxidation processing of the surface of the high-volume-fraction aluminum-based silicon carbide material is completed; and S4, repeatedly executing the steps of S1 to S3 until the processing depth reaches the allowance of 2 mm required by the processing size, and executing a finish machining stage; and in the finish machining stage: S5, removing the transition layer and the base body layer on the surface of the aluminum-based silicon carbide material subjected to rough machining in a multi-dimensional vibration ultrasonic milling mode, andforming a processed precision surface.

Description

technical field [0001] The invention relates to the field of precision machining of composite materials, in particular to a high-efficiency precision machining process for aluminum-based silicon carbide composite materials, and belongs to the technical field related to precision machining. Background technique [0002] Aluminum-based silicon carbide materials have excellent properties such as high specific strength, high specific stiffness, high specific modulus, high temperature resistance, corrosion resistance, and fatigue resistance, and are highly valued by technicians from various countries. Based on the characteristics that the comprehensive properties of composite materials can be designed according to the material ratio, composite materials have been widely used in the development of key components under special working conditions such as complex loads and complex environments in military industries such as aviation, aerospace, and weapons, which effectively guarantee...

AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the present invention is: aiming at the problems that the tool is easy to wear and frequent tool change in the processing of aluminum-based silicon carbide material, resulting in short tool failure period, high processing cost, low part processing efficiency and poor processing quality, an improved method is proposed. A new process method for high-efficiency and precise machining of aluminum-based silicon carbide can greatly improve machining efficiency, reduce tool wear, reduce production costs, and improve machined surface quality

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