Machinability and damage accumulation in aluminum-silicon carbide particulate reinforced metal matrix composites.

摘要

This study concentrated on chip formation and surface finish during machining of metal matrix composites (MMCs).The MMCs studied were (1) a commercial purity aluminum matrix reinforced with 10 vol.% SiC of either 12 The various MMC materials exhibited notable differences in surface and chip morphology. Although the extent of damage varied, the damage type and morphology did not change with machining conditions. Damage to the surface of the small (0.8During chip formation, material was compressed in the shear zone and elongated at a small angle to the shear direction effectively resulting in a chip thickness greater than the depth of cut. The large (