The Optimum Design of Tool Path and Dimensional Accuracy for the Plastic Injection Mold

摘要

In cutting practice, the cutting time, work piece quality, cutting cost were the important parameters to upgrade the competition. How to obtain the optimum cutting time (path) and machining accuracy, in order to shorten the mold manufacturing time, is the same goal for industry. The objective of this research is to investigate how to decrease the CAM programming time and machining time, and accomplish the demand of machining accuracy in the same time, when the cutting-use simulation software and actuality machining were applied to High Speed Machining of plastic injection mold manufacturing. There are two factors will be discussed in the following: (1)During end mill machining, under the condition of no retained material, the setting of tool displacement. (2)The selection of optimum shape contours tolerance. The experimental results show that: (1)Under the condition of no retained material, the optimum tool displacement equal to 70% of the tool diameter. (2)According to the work piece contour tolerance value, under the satisfication of request for cutting accuracy and cutting time, the optimum value equal to 0.01mm.