A critique on the micromachining of steel. (11th May 2010)

• Record Type: Journal Article
• Authors: Jackson, Mark J.; Novakov, Tamara
• Is Part Of: International journal of computational materials science and surface engineering. Volume 3:Number 2/3(2010)
• Page Start: 251
• Page End: 273
• Publication Date: 2010-05-11
• Subjects: micromachining -- steel -- plasticity -- materials science -- machining -- finite element method -- modelling -- FEM -- surface engineering -- chip formation -- quasi-shear extrusion; Surfaces (Technology) -- Periodicals; Materials -- Computer simulation -- Periodicals; Materials -- Mathematical models -- Periodicals; 620.110151
• Languages: English
• ISSNs: 1753-3465

Abstract

A critique on some recent computational results on the subject of micromachining of steel is presented in this paper. A scientific-based criticism is presented of selected results and analysis on the nature of chip formation at the microscale. The paper confirms that a mechanism known as 'quasi-shear extrusion' takes place when machining materials of variable hardness and is confirmed using a dedicated finite element model for the analysis of machining at the microscale. The authors also provide an insight into how to further investigate the phenomenon of 'quasi-shear extrusion chip formation' from an experimental viewpoint.