Vibration-assisted machining of single crystal

International Symposium on Dynamic Deformation and Fracture of Advanced Materials 2013

物理学;材料科学

Zahedi, S.A.^1 ; Roy, A.^1 ; Silberschmidt, V.V.^1

Wolfson School of Mechanical and Manufacturing Engineering, Loughborough University, LE11 3TU, United Kingdom^1

关键词: Accuracy and precision;    Commercial software;    Computational modelling;    Crystallographic anisotropy;    Face-centred cubic;    Smoothed particle hydrodynamics;    Ultraprecision machining;    Vibration assisted machining;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/451/1/012038/pdf
DOI  :  10.1088/1742-6596/451/1/012038

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Vibration-assisted machining offers a solution to expanding needs for improved machining, especially where accuracy and precision are of importance, such as in micromachining of single crystals of metals and alloys. Crystallographic anisotropy plays a crucial role in determining on overall response to machining. In this study, we intend to address the matter of ultra-precision machining of material at the micron scale using computational modelling. A hybrid modelling approach is implemented that combines two discrete schemes: smoothed particle hydrodynamics and continuum finite elements. The model is implemented in a commercial software ABAQUS/Explicit employing a user-defined subroutine (VUMAT) and used to elucidate the effect of crystallographic anisotropy on a response of face centred cubic (f.c.c.) metals to machining.