The complexity of chip formation in machining processes stems from the confluence of several physical phenomena mechanical, thermal, and chemical occurring at very high strain rate. The prediction of chip morphology depends on a fundamental understanding of these phenomena and is of industrial importance for cutting force prediction and surface integrity control. Within this framework, our pape...

Hard turning has become an attractive method of machining for most manufacturers in the last few years due to its low cost and superior surface quality compared grinding. In this experimental study, machinability hardened steel under dry on a CNC lathe is undertaken optimize cutting parameters minimum roughness energy consumption with speed (320, 450, 575), tool type (coated uncoated), feed rat...

The possibility for the National Institute for Standards and Technology (NIST) to certify Charpy reference specimens for testing at room temperature (21 °C ± 1 °C) instead of −40 °C was investigated in a previous study, in which a slightly increased likelihood of specimen jamming was observed at the low-energy level (13 J to 20 J). Moreover, there is a concern that the higher impact toughness o...