SUNConferences, RAPDASA 2014

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STATE OF THE ART AND REVIEW OF ADVANCED EXPERIENCES IN RAPID TOOLING
Jochen Dietrich, Detlef Kochan, Lutz Lachmann

Last modified: 2014-10-26

Abstract


The paper gives a short overview of the “state of the art” and a review of advanced experiences in rapid tooling. Starting in the early 90th first investigations of rapid tooling using LOM (Laminated-Object Manufacturing), HSC (High Speed Cutting), SLS (Selective Laser Sintering) and metal sheet laminating technologies like MELATO (Metal Laminating Tooling)will be reviewed. The field of application is wide from injection molding, sheet metal forming up to pressure die casting. Developments of the Incremental Sheet Forming (ISF) concept in connection with homogeneous heating tooling for GRP (Glass Reinforced Plastics) applications will be demonstrated too. For the optimization of the entire process chain from tool design with conformal cooling channels and the determined process realization are thermography and simulation applications necessary and useful methods. Some theoretical and practical experiences will be given. The well-known SLM (Selective Laser Melting) principle “LaserCUSING” from the company Concept Laser is quite suitable for injection molding but for high temperature requirements of the pressure-die casting processes the material quality leads to restrictions concerning tool life. Some experiences in this AM (Additive Manufacturing) technology will be demonstrated. In any case for further progress new principles are necessary. Some first experiences with the so called MPA (Metal Powder Application) procedure from the company Hermle will be included in the presentation. Another new approach for the improved heating/cooling procedure is possible with newly developed ceramic heating elements. Some first experiences – related to a new research project - will be demonstrated.

 




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