Optimising Tool Positioning for End-Mill Machining of Free-Form Surfaces on 5-Axis Machines for both Semi-Finishing and Finishing |
| |
Authors: | J-M Redonnet W Rubio F Monies G Dessein |
| |
Affiliation: | (1) Laboratoire de Gérnie Mécanique de Toulouse, Université Paul Sabatier, Toulouse, France, FR |
| |
Abstract: | End-milling of free-form surfaces on 5-axis NC machine tools is a complex problem which has been studied by a large number
of research scientists. When end-milling non-convex surfaces there is a risk of interference between the tool and the surface.
Using a 5-axis NC machine tool enables the tool to be oriented in any spatial direction to access a given point. This means
interference can be avoided and the position of the tool can be optimised so as to minimise residual material. Here, a new
method is presented for tool positioning in end-milling of free-form surfaces based on evaluating the interference for a set
of test points distributed around the circumference of the tip of the tool. Distinction is made between the cases of semi-finishing
and finishing which can be performed using a large diameter flat-end tool and a toroidal tool, respectively. Further, all
developments are implemented for interactive use in a CAD/CAM software environment. |
| |
Keywords: | :5-axis NC machine tool CAM End-milling Flat-end milling cutter Free-form surfaces NURBS Optimisation Toroidal shaped tool |
本文献已被 SpringerLink 等数据库收录! |