Manufacturing Technology for Complex Geometries based on Rational Splines

Objective

The objective of MATRAS is to enhance the representation of freeform workpiece geometry in machine tool controllers (CNC) for 3 to 5 axis milling. This will allow the use of CAD datafiles including complex mathematical descriptions such as rational surface splines as direct input for the CNC, and interpretation of such surfaces including all corrections and transformations in realtime at the CNC.

Work will include the development of spline interpretation within the CNC, using both cubic splines and rational surface splines, and a new expanded geometric data interface between CAD and CNC.

After integration of the system components, the system will be tested and optimised in a setting which is representative of technical and commercial industrial requirements. Results of the project will be incorporated in CNCs marketed by consortium members.

Fields of science

• natural sciences › mathematics › pure mathematics › geometry

Programme(s)

• FP3-ESPRIT 3 - Specific research and technological development programme (EEC) in the field of information technologies, 1990-1994

Topic(s)

Data not available

Call for proposal

Data not available

Funding Scheme

Data not available

Coordinator

Mandelli SpA

Address

Via Caorsana 35-112
29100 Piacenza
Italy

Participants (4)

Aérospatiale Société Nationale Industrielle SA

France

Address

37 Boulevard De Montmorency
75781 Paris

EIDGENOESSISCHE TECHNISCHE HOCHSCHULEZURICH

Switzerland

Address

Leonardstr., 27
8092 Zurich

GRUNDIG ATEK SYSTEMS

Switzerland

Address

Promenade, 26, Atek Brugg
5200 Brugg

Rheinisch-Westfälische Technische Hochschule Aachen (RWTH)

Germany

Address

Steinbachstraße 53b
52074 Aachen