Effect of tool geometry in nanometric cutting of nanotwinned Cu: a molecular dynamics study Online publication date: Wed, 23-Sep-2015
by Junjie Zhang; Lin Geng; Yongda Yan; Tao Sun
International Journal of Nanomanufacturing (IJNM), Vol. 11, No. 3/4, 2015
Abstract: In the present work we investigate the nanometric cutting of a nanotwinned Cu containing 26° inclined twin boundaries using a diamond cutting tool by means of molecular dynamics simulations, with a focus on examining the influence of rake angle of cutting tools on the cutting processes. The underlying deformation mechanisms of the material are elucidated and are further correlated with the evolution of machining forces and the formation of machined surface and chips. Our simulation results indicate that dislocation slip, interaction of dislocation with twin boundaries and twin boundaries-associated mechanisms work in parallel in the plastic deformation of the nanotwinned Cu. It is found that the rake angle has a significant influence on the deformation behaviour of the material, chip formation and machined surface quality. A rake angle of 45° results in smaller energy dissipation and better machined surface quality than the other two rake angles of 0° and −45°.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Nanomanufacturing (IJNM):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook