Machinability Studies on Boron Carbide and Graphite Reinforced Al7029-Based Hybrid Composites

Abstract

AbstractDrilling characteristics in combination with machining factors such as thrust force, torque, and burr height, when drilling on Al7029+B4C and Al7029+B4C-Gr composites are conducted. The liquid metallurgical technique used in the production of composites. The results revealed that considerable influence on thrust force and the exit burr height was caused by the feed rate. The Al7029/10% B4C-5% Gr hybrid composite displays reduced thrust force and burr height, while the Al7029/10% B4C composite has the opposite effect. Graphite surface lubricating characteristics led to the decreased thrust force, torque, and burr height. Graphene-derived chips are discontinuous, allowing them to have applications that involve discontinuous chips. It has been observed that carbide tools are advantageous over the TiN-coated HSS drill bit for machining HMMCs.KeywordsHybrid compositesBoron carbideGraphiteThrust forceBurr height