Study on grinding of SiCp/Al composites by micro-textured monolayer brazed diamond wheel

• Published in: International journal of advanced manufacturing technology 2023-06, Vol.126 (9-10), p.4607-4615
• Main Authors: Li, Kai-jiang, Liao, Yan-ling, Zhou, Yu-mei, Zhang, Feng-lin, Liu, Jiang-wen, Wu, Shi-xiong, Tang, Hong-qun, Pan, Xiao-yi
• Format: Article
• Language: English
• Subjects: Ablation; Advanced manufacturing technologies; CAE) and Design; Composite materials; Computer-Aided Engineering (CAD; Diamond machining; Dry grinding; Engineering; Grinding wheels; Grooves; Industrial and Production Engineering; Integrity; Laboratories; Lasers; Mechanical Engineering; Media Management; Monolayers; Original Article; Scanning electron microscopy; Silicon carbide; Wheels
• ISSN: 0268-3768; 1433-3015
• DOI: 10.1007/s00170-023-11448-4

It is difficult to machine with high machining efficiency and surface integrity for SiCp/Al composite, especially for those with a high volume fraction of SiC. Here, we present monolayer brazed diamond grinding wheels that contain different micro-textures ablated by pulse laser. The dry grinding characteristics of SiCp/Al composites with 70 vol.% SiC using the wheels with different micro-textures were investigated. The influence of micro-textures on the grinding force, grinding temperature, and surface integrity was examined. The results indicated that micro-textures on diamond grits can induce cleavages and form more micro-cutting edges in grinding of SiCp/Al. The wheel contains both micro-grooves and micro-hole and owns the lowest grinding force, grinding temperature, and surface integrity. The micro-textured wheel produces smaller grinding chips and less fracture, crushing, and pull-out of SiC particle on the ground surface of SiCp/Al composites than other wheels.