Chen Mei-Yung, Tzeng Huan-Wen, Chen Yi-Cheng, Chen Shia-Chung
Department of Mechatronic Technology, National Taiwan Normal University, Taipei, Taiwan.
ISA Trans. 2008 Jan;47(1):119-26. doi: 10.1016/j.isatra.2007.07.001. Epub 2007 Sep 18.
This research proposes the fuzzy theory for the control of weld lines in plastic injection molding. The weld line occurs as a result of geometrical changes in molded parts in the injection molding process. The weld line is one of the defects present in plastic injection-molded parts; the line affects the quality of parts as well as the strength of the products. In the present study, fuzzy theory was applied in the design of injection molding. First, expert experiences were transformed into IF approximately THEN approximately rules to establish the knowledge base for developing fuzzy inference rules. The rules were then used to adjust the molding parameters, which in turn were applied to control the weld line position in the injection molding process. The results indicate that fuzzy theory exhibited favorable applicability in the control of the weld line as well as decreased the simulation time, thereby accelerating the design process of injection molding.
本研究提出了用于控制注塑成型中熔接线的模糊理论。熔接线是注塑成型过程中成型部件几何形状变化的结果。熔接线是注塑成型部件中存在的缺陷之一；该线条会影响部件质量以及产品强度。在本研究中，模糊理论应用于注塑成型设计。首先，将专家经验转化为“如果近似……那么近似……”规则，以建立用于制定模糊推理规则的知识库。然后使用这些规则来调整成型参数，进而将其应用于控制注塑成型过程中的熔接线位置。结果表明，模糊理论在熔接线控制方面表现出良好的适用性，同时减少了模拟时间，从而加快了注塑成型的设计过程。
