Surface alteration induced by machining
by Gianluca D'Urso, Giuseppe Pellegrini, Giancarlo Maccarini
International Journal of Materials and Product Technology (IJMPT), Vol. 30, No. 1/2/3, 2007

Abstract: This paper, dealing with strain hardening in turning, is a comparison of numerical (Finite Element Method (FEM)) and experimental results. Orthogonal cutting was assumed as the reference working condition. A FEM model was set up to simulate experimental conditions and to evaluate the effects of cutting parameters on surfacial strain hardening. Experimental data were recorded by machining thin disks of C20 steel (1CD20 UNI EN 10017: 2005) with radial feed; several values of both cutting speeds and feed were tested. After machining, work hardening was evaluated by micro Vickers test as a function of the distance from the machined surface. Regression techniques were used to fit experimental data and to find out work hardening patterns (depth of the affected zone, maximum hardness of the surface). FEM simulations of the experiments were performed using a commercial code for forming processes. A plane strain model of a rigid-plastic workpiece was set up with suitable material and interface properties. Good agreement between numerical and experimental results was found, therefore FEM was used to model a wider range of process parameters.

Online publication date: Mon, 09-Apr-2007

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 Materials and Product Technology (IJMPT):
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