A review on conventional and nonconventional machining of SiC particle-reinforced aluminium matrix composites
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A review on conventional and nonconventional machining of SiC particle-reinforced aluminium matrix composites Ji-Peng Chen1,2
•
Lin Gu3 • Guo-Jian He3
Received: 28 December 2019 / Revised: 28 March 2020 / Accepted: 5 June 2020 The Author(s) 2020
Abstract Among the various types of metal matrix composites, SiC particle-reinforced aluminum matrix composites (SiCp/Al) are finding increasing applications in many industrial fields such as aerospace, automotive, and electronics. However, SiCp/Al composites are considered as difficult-to-cut materials due to the hard ceramic reinforcement, which causes severe machinability degradation by increasing cutting tool wear, cutting force, etc. To improve the machinability of SiCp/Al composites, many techniques including conventional and nonconventional machining processes have been employed. The purpose of this study is to evaluate the machining performance of SiCp/Al composites using conventional machining, i.e., turning, milling, drilling, and grinding, and using nonconventional machining, namely electrical discharge machining (EDM), powder mixed EDM, wire EDM, electrochemical machining, and newly developed high-efficiency machining technologies, e.g., blasting erosion arc machining. This research not only presents an overview of the machining aspects of SiCp/Al composites using various processing technologies but also establishes optimization parameters as reference of industry applications.
& Ji-Peng Chen [email protected] 1
School of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, People’s Republic of China
2
Department of Mechanical Engineering, Polytechnic University of Milan, Piazza Leonardo da Vinci 32, Milan 20133, Italy
3
State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
Keywords SiCp/Al Machining Conventional Wear mechanism Nonconventional Performance
1 Introduction Metal matrix composites (MMCs) are prepared by combining a metallic matrix with hard ceramic reinforcements. Usually, metals including aluminum, magnesium, cobalt, titanium, copper, and various alloys of these materials can be adopted as a matrix. Meanwhile, the reinforcement material is generally a hard ceramic material, such as SiC, TiC, B4C [1], Si3N4, AlN, Al2O3, TiB2, ZrO2, and Y2O3 [2]. The most widely used metal matrix materials for producing MMCs are aluminum and its alloys, because their ductility, formability, and low density can be combined with the stiffness and load-bearing capacity of the reinforcement [3]. Among numerous reinforcement materials, SiC is usually employed because it has some unique advantages, e.g., low cost, good hardness, and high corrosion resistance, compared to other reinforcements [4]. With the combined advantages of aluminum matrix materials and SiC reinforcement, SiCp/Al MMCs have been certified and are steadily advancing owing to their excellent properties such as high strength, low density, and h
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