The constant temperature plastic mold of plastic molding plastic parts with high precision contours is of significance in determining not only the productivity of the injection plastic molding process but also the product quality. A solution to this challenge is the rapid thermal response plastic molding process in which uniform temperature overall the plastic mold part ensures the product quality by preventing differential shrinkage, internal stress and plastic mold release problems (Li, 2001). Many Computer-Aided-Engineering (CAE) and optimization methods have been carried out to observe and fine-tune the influences of the thermal system (Park et al., 1998). The results of these research works are obtained by using thermal analysis modules of commercial CAE packages such as C-plastic mold or rapid prototype  flow which are based on the initial designs generated by the human. By given an initial thermal configuration design, efficiency and quality of the plastic molded part can be predicted before an actual plastic plastic mold is manufactured. One more necessary step for the complete automation in the plastic molding thermal system is to generate the initial design for the conformal cooling channels.For example casting plastic mould,plastic mold making,rapid prototype  injection plastic mold etc. In this paper, a featured-based approach to this problem is proposed. Super-quadrics is presented as a tool for recognizing the plastic part shapes and an algorithm is applied for generating the center line of the thermal sub-system of each individual surface. Finally, these sub sets of center lines are combined to create a unique center line which is the guide line for generating the cooling channel of the thermal system.

Conformal cooling channel, as the name implies, refers to the channels that conform to the surface of the plastic mold  cavity. Conformal cooling channels have demonstrated simultaneous improvement in production rate and part quality as compared with conventional.