Predictive Modeling of Scribing Brittle Material Using Diamond Tool with Improved Geometry

摘要: This paper discusses the predictive modeling of a scribing process. The diamond tool geometry is important for this As prototype tool, four-sided pyramid taken. Some minor changes are made in its purpose to make modified tools. factor which affects greatly quality final product, forming, and overall efficiency Scribing brittle sheet with studied via parametric finite element (FEM) aid ANSYS software package computer-aided engineering. heterogeneous mesh generated using solid elements quadratic form function. To obtain more precise simulation decrease singular effect under force loading conditions, contact increased density knots near tooltip added mesh. variants tools developed provide necessary groove on material surface regardless movement direction. Finally, algorithm corresponding program module solution have been created internal APDL programming language. computation results sufficiently agree experimental data obtained work earlier. calculated stress intensity along normal direction has large value up 15 μm from cutting tip decreases sharply than cross section. So, approach presented helps understand process improve machining technology materials.