Papers by Author: Zhao Yu Mou

Abstract: The purpose of this paper is to compare different simulation model of orthogonal cutting process using three different FEM commercial codes as well as with the results of orthogonal experiment. For one thing, element type, boundary condition and friction model between the chip and tool commercial have been compared when the numerical model established in implicit finite element code, Deform3D and the explicit code ANSYS/LS-DYNA and Thirdwave AdvantEdge. For another, main and thrust cutting forces, shear angles, chip thicknesses and contact lengths by three codes are compared with the orthogonal metal cutting experiment by Movahhedy and Altintas.

Abstract: A new method was used to analysis the performance of Nano-MAX lapping machine under working condition. Model analysis in ANSYS and operational model analysis in LMS Test.Lab are banded together properly, which reduce the calculation difficulty. Time frequency analysis method is also used to study in which speed is the most suitable one for processing of Nano-MAX lapping machine. Model analysis results reveal that 100Hz is the natural frequency of chassis and the workbench and 178Hz is the natural frequency of chassis and spindle outer covering. If the exciting frequency is 100Hz or 178Hz, there will be two mechanical parts set up resonance which will likely to cause the whole machine resonance.