蘇聖倫

Model transformation and refinement in between productand

process activities is the corner stone of computer-

aidedconcurrent product and process development. Conventionally,

feature recognition and extraction techniques were used

indeveloping feature-based model for process planning.

Howeverdue to the limitation and difficulty in feature

recognition,the goal for integrated product and process

development is not yet achieved. This thesis develops a

feature-based model refinementmethodology, including a model

refinement procedure and mechanisms,that is able to transform

feature-based molding product modelsinto feature-based mold

models to support computer-aided concurrentmolding product and

(1) the feature recognition difficulty iseliminated and thus

increases the efficiency of model refinement ,(2) the

consistency between product models and mold models can

bedynamically maintained that makes integrated product and

processdevelopment possible and (3) it supports various molding

productand process development activities such as cost

effectivenessevaluation, mold manufacturability assessment and

mold manufacturingprocess planning. The result of this research

enables computer-aidedconcurrent product and process development

and thus help increasesproduct quality and reduces product cost

and development time andeventually increases product

marketability.