高體積分?jǐn)?shù)SiCp/A1復(fù)合材料電解-機(jī)械組合低磨損加工方法研究

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關(guān)鍵詞：鋁基碳化硅復(fù)合材料；電解加工；工具磨損；金剛石磨棒

中圖分類號(hào)：TG662

DOI：10.3969/j.issn.1004-132X.2025.04.012 開(kāi)放科學(xué)（資源服務(wù)）標(biāo)識(shí)碼（OSID）：

Study on Low Wear Machining Method of High Volume Fraction SiCp/Al Composite Materials by ECM-mechanical Combined Machining Processes Method

HE Bin*ZHOU Xingyu LU Hongyu ZHANG Junfei DING Kai LI Qilin LEI Weining School of Mechanical Engineering，Jiangsu University of Technology，Changzhou，Jiangsu，213001

Abstract： To improve the problems of tool wear，poor surface quality and low machining efficiency of aluminum-based silicon carbide（SiCp/Al） composites with high volume fraction under conventional machining，an ECM-mechanical combined machining method was proposed，and the ECMmechanical combined machining experiments of 60% volume fraction SiCp/Al composites were carried out. The results show that SiC particles are exposed on the surfaces with the removal of aluminum matrix.There is a certain depth of transition zone between the surface of the workpiece and the matrix after ECM，the aluminum matrix in the transition zone is locally removed，and the binding force of SiC particles is reduced. When the diamond grinding rod is used for machining the transition zone，the aluminum matrix adhesion phenomenon is not observed，the diamond grinding rod has almost no wear，and the surface damages are obviously reduced. The machinability of high volume fraction SiCp/Al composites may be improved by ECM-mechanical machining processes.

Key words： aluminum-based silicon carbide composites（SiCp/Al）； electrochemical machining （ECM） ；tool wear;diamond grinding rod

0 引言

鋁基碳化硅（SiCp/AI）復(fù)合材料以鋁（AI）金屬為基體，碳化硅（SiC）顆粒為增強(qiáng)相，具有強(qiáng)度高、耐磨性優(yōu)、密度小、膨脹率低、導(dǎo)熱性強(qiáng)等特性，廣泛應(yīng)用于航空航天、汽車工業(yè)、機(jī)械設(shè)備制造、電子電氣、輕量化應(yīng)用等領(lǐng)域[1-4]。（剩余10784字）