SiCp/Al composite materials are widely used in various industries such as the aerospace and the electronics industries, primarily due to their excellent material properties. However, their machinability is significantly weakened due to their unique characteristics. Consequently, efficient and precise machining technology for SiCp/Al composite materials has become a crucial research area. By conducting a comprehensive analysis of the relevant research literature from both domestic and international sources, this study examines the processing mechanism, as well as the turning, milling, drilling, grinding, special machining, and hybrid machining characteristics, of SiCp/Al composite materials. Moreover, it summarizes the latest research progress in composite material processing while identifying the existing problems and shortcomings in this area. The aim of this review is to enhance the machinability of SiCp/Al composite materials and promote high-quality and efficient processing methods.

A Review on Machining SiCp/Al Composite Materials

As the ideal high-temperature component materials, Cf/SiC composites require high grinding surface quality for their final preparation. It is a challenging issue to achieve the desired surface quality of such hard brittle material with serious rapid tool wear. A surface roughness predictive model involving the grinding wheel cumulative wear was developed for grinding process of 2.5D needled Cf/SiC composites. Compared with the experimental data, the predicted ground surface roughness errors of 2.5D needled Cf/SiC composites are less than 12 %. It is found that due to the grinding wheel cumulative wear effects, the resin-bonded diamond wheel presented self-sharpening phenomenon as increasing specific material removal volume (SMRV). The grinding wheel cumulative wear effects are conducive to Cf/SiC ground surface improvement. When the SMRV reached 720 mm3/mm, the surface roughness decreased by 21.2 % with a 180# grinding wheel, and 8.6 % with a 280# grinding wheel. This work provides some insights for preparing the tool condition during grinding 2.5D needled Cf/SiC composites. 

Wear-induced variation of surface roughness in grinding 2.5D Cf/SiC composites

Abstract SiC particle reinforced Al matrix composites (SiC p /Al MMCs) have been widely used in aerospace and other fields due to their excellent mechanical properties, and their machined surface integrity is crucial for the use of new generation high-tech equipment. In order to enhance the understanding and regulation of machined surface integrity in Al matrix composites, this article provides a comprehensive review of the research advancements regarding influential factors, damage characteristics, creation techniques for machined surfaces, as well as technologies for controlling machined surface integrity both domestically and internationally. The present study discusses the key issues and solutions in the processing of aluminum matrix composite materials, along with examining the extent and mechanism of various energy field assistance influence on the surface integrity of mechanically processed aluminum matrix composites. Ultimately, this article proposes future research prospects for achieving high surface integrity machining of aluminum matrix composites. 

Machined surface formation and integrity control technology of SiCp/Al composites: a review

Effect of Hot Rolling on Microstructures and Mechanical Properties of SiCp/A356 Aluminum Matrix Composites

Wear behavior of white alumina and seeded gel abrasive wheels in ultrasonic vibration-assisted grinding of nickel-based single-crystal alloy

Surface Morphology and Kerf Quality During Fiber Laser Cutting of High Volume Fraction SiC Particles-Reinforced Aluminum Matrix Composites

Grinding force during profile grinding of powder metallurgy superalloy FGH96 turbine disc slots structure using CBN abrasive wheel

CBN grain wear and its effects on material removal during grinding of FGH96 powder metallurgy superalloy

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Papers

Surface Morphology and Kerf Quality During Fiber Laser Cutting of High Volume Fraction SiC Particles-Reinforced Aluminum Matrix Composites

Grinding force during profile grinding of powder metallurgy superalloy FGH96 turbine disc slots structure using CBN abrasive wheel

CBN grain wear and its effects on material removal during grinding of FGH96 powder metallurgy superalloy