Fem Assisted Observations Of Cutting Forces, Temperature And Chip Curling In Oblique Machining

Abstract

It is easier to numerically model the machining process assuming the orthogonal cutting conditions, however the realistic industrial machining arrangements are closer to the oblique machining conditions. In oblique machining the cutting edge is located at a certain inclination angle resulting in a third radial force component. The inclination angle in oblique machining arrangement has a controlling influence over the chip curling and resulting plastic deformation is more complex as compared to the orthogonal machining arrangements. The current study has incorporated a threedimensional finite element model to predict the machining of Inconel 718 using SIALON cutting tool materials under oblique machining conditions. The study incorporates different cutting edge-based inclination angles and resulting simulated machining performance has been reported. The machining performance has been evaluated by observing the simulated cutting forces, cutting temperature, and chip curling.

Hybrid manufacturing of titanium Ti-6Al-4V combining laser metal deposition and cryogenic milling

“…However, it was unexpected that chips appeared more regular when cooling was increased further. One potential explanation might be that the increase in mass flow rate of the cryogenic medium decreases the radius of the chip curvature and the chip length, while the larger cooling effect results in higher temperature gradients and thus more pronounced bending stresses [40,41]. Nevertheless, further investigation would be required in order to fully understand the observed chip morphologies.…”