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Analysis of geometry at abrasive waterjet cutting operation

 
: Henning, A.; Westkämper, E.; Schmidt, B.

Gee, C. ; BHR Group, Cranfield/Bedford:
Advances and Future Needs: Papers presented at 17th International Conference on Water Jetting : Mainz, Germany, 7-9 September 2004
Cranfield, Bedford, England, 2004
ISBN: 1-85598-059-2
S.465-474
International Conference on Water Jetting <17, 2004, Mainz>
Englisch
Konferenzbeitrag
Fraunhofer IPA ()
Wasser-Abrasivstrahlschneiden; waterjet; Wasserstrahl; Wasserstrahlschneiden

Abstract
The application of abrasive waterjets is spreading more and more among various industries. Two different trends are currently being spotted. The first is high performance cutting operation when competing against thermal cutting operation (e.g. flame cutting) and the second is to utilize the capabilities of 3D cutting with 5-axis machines in order to achieve highest possible accuracy. This paper presents a geometrical approach to three dimensional modeling for high precision abrasive water jetting operation. On the basis of phenomenal analysis of the actual taper of the cutting contour a volumetric jet shape model is derived. This model was evaluated for a high number of parameter combinations and proved to be of highest accuracy. Even in simulation of critical situations such as corners or curves the jet shape model does replicate the special critical effects. This model can be used as a basis for waterjet specific computer aided manufacturing systems. Here with the implementation of machining strategies valuable time can be saved through off-line programming and both cutting edge quality and performance of the cut can be improved.

: http://publica.fraunhofer.de/dokumente/N-24531.html