Study of edge radius effects in mechanical micro-machining
by U. Srinivas Rao; L. Vijayaraghavan
International Journal of Precision Technology (IJPTECH), Vol. 3, No. 1, 2012

Abstract: In mechanical micro-machining, the feature size ranges from tens of micrometres to less than a millimetre in size. At this level of cutting, the tool cannot be considered as a sharp tool, as the uncut chip thickness is comparable to the tool edge radius. Due to technological limitations, it is not possible to manufacture a perfectly sharp tool. Researchers have studied various aspects of edge radius of tools, such as size effect, minimum chip thickness effect, ploughing phenomena, etc. In the present study, FEM analysis of the orthogonal machining is presented to study the stress state ahead of the tool, in the machined surface and in the layers encompassing the chip. The uncut chip thickness in this study is chosen to be more than the edge radius of the tool. The study indicates, an optimum value for edge radius can be found and used for processes of constant uncut chip thickness.

Online publication date: Wed, 22-Apr-2015

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
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 Precision Technology (IJPTECH):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your 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