Lehrstuhl für Fertigungstechnologie, Universität Erlangen-Nürnberg

Methods for the computer aided programming of 3D laser micro processing



Datum: 01.01.2001


Author


Reporter

  • Prof. Dr.-Ing. M. Geiger
  • Prof. Dr.-Ing. L. Cser, Bay Zoltán Stiftung Budapest, Ungarn

Three-dimensional Laser Micro Processing is distinguished from other micro processing technologies through its high technological potential. This is to be exploited. The advantages of this technology are only accessible through computer aided planning of the manufacturing steps and programming of the NC-code. The reasons for the necessity of computer assistance are the very high demands on accuracy as well as the small size and complex 3D machining paths which limit the visual control of the process by the worker. During this research methods for the planning of the manufacturing steps and NC-pro-gramming in the field of 3D laser micro processing have been developed. Besides reducing the planning time through automatic offline NC-programming these methods increase the flexibility of the manufacture and thus allow a greater workpiece variety. The first step towards this result was the definition of computer internal data models which cover the planning task completely including the workpiece models and models for the laser beam track in different scanning systems. A major aspect of the research done was the development of planning algorithms that not only the technology but also all task specific limitations into account and increase the efficiency and reliability of the resulting NC-programs through the exploitation of intelligent manufacturing planning and optimisation methods. The resulting concept has been realised in a planning system which enables possibilities of integrating 3D laser micro processing into process chains as well as the support of prototype and small batch manufactures.