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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.

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