Chip Morphology and Surface Integrity in Turning AZ31 Magnesium Alloy under Dry Machining and Submerged Convective Cooling

Magnesium alloys have broad applications, including medical implants and the aerospace sector owing to their great density high strength-to-weight ratio. Dry cutting is a frequent technique for machining this material. However, it always leads an excessive rise in temperature due absence of cooling at zone, which affects machined surface integrity chip morphology. In study, morphology AZ31 magnesium alloy were investigated turning process using internal method called submerged convective (SCC) overcome dry cutting. This can exploit advantage specific heat capacity water as fluid without any reaction between create element zone. The morphologies analyzed experimentally with varying speeds under SCC experimental results revealed that produced saw-tooth or serrated formation. chips continuous, while was short discontinuous result severe crack on back chip. It discovered grain refinement layer samples thinner turning. increased microhardness by 60.5% from 55 HV 88.3 HV, exhibited 49% increase microhardness. roughness improved 10.8%, 9.4% 4.7% (V) 120, 180, 240 m/min, respectively, cooling. Based obtained, outperformed terms breakability, refinement, microhardness, roughness.