Numerical interpolators to maintain discretisation step under constant minimum chord error for spiral-type surfaces Online publication date: Tue, 05-May-2015
by N.A. Fountas; P. Zalimidis; N.M. Vaxevanidis
International Journal of Machining and Machinability of Materials (IJMMM), Vol. 17, No. 1, 2015
Abstract: This paper proposes a simple philosophy of machining 2D spiral-type sculptured surfaces by analysing a given mathematical expression which describes such surfaces and then generating a shape interpolator via the implementation of already known numerical techniques for CNC machining such as linear and circular approximation. An algorithm discretises the ideal curve of a given surface so as to maintain the lowest possible value in terms of chordal deviation existed between the theoretical curve and the real tool path trajectory. The algorithm is applied to 2D geometries only and is going to be developed in the near future. Nevertheless, experiments conducted in CAM software simulations to approximate the curve of a centrifugal impeller's blade as a paradigm for three axis machining, have show promising directions for building an entire software-based optimisation system integrated to cutting edge manufacturing systems.
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 Machining and Machinability of Materials (IJMMM):
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