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Abstract: In
order to meet the demands for hollowed prototypes in casting and rapid
prototype manufacturing, a new hollowing method in rapid prototyping is
presented. According to the part’s Stereolithography models and slicing
information, plane offsetting along slicing direction and contour
offsetting are employed to perform the hollowing operation, which can
reduce the difficulty in hollowing Stereolithography models with complex
surfaces. Adopting this method, hollowing process is dramatically
simplified and the efficiency is improved greatly. This method is
verified by practical engineering case, which shows that this hollowing
operation can obviously reduce prototype’s building time and cost.
Key words: Rapid
prototyping Contour offsetting Hollowing
CLC No: TH16 TH161.5
国家863计划基金(2002AA414110，2002AA414060)和上海市重点科技攻关基金(021111126)资助项目.
Received 20030406, received in revised form 20030705 |