Treatment of NURBS in the system of lath incision

Author

Xueliang, Huang ; Xu, Zhi ; Wen, ChuanXin ; Du, Jian ; Ohsaki, Hiroyuki

Author_Institution

Southeast Univ., Nanjing, China

Volume

2

fYear

2003

fDate

9-11 Nov. 2003

Firstpage

676

Abstract

This paper deals with the method for extracting graphics information from DXF files, in which are the NURBS curves stored. With the extracted data, the parametric formulation of the NURBS curve can be constructed. And then, we provide an algorithm for approximating arbitrary parametric curves with circular arcs. The above processing for NURBS has been applied in the lath incision machine, which makes it possible for the CNC cutter to produce complex shaped workpieces. This machine includes 3 sets of servo motors, one set of 3-axis CNC and a conventional PC. Experimental results indicate that this method is able to provide a satisfactory performance.

Keywords

computerised numerical control; electric machine analysis computing; lathes; servomotors; CNC cutter; DXF files; NURBS curves; arbitrary approximating; complex shaped workpieces; graphics information; lath incision machine; parametric curves; parametric formulation; servomotors; Computer numerical control; Data mining; Graphics; Programmable control; Servomechanisms; Servomotors; Spline; Surface reconstruction; Surface topography; Tiles;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2003. ICEMS 2003. Sixth International Conference on

Conference_Location

Beijing, China

Print_ISBN

7-5062-6210-X

Type

conf

Filename

1274137