直交解析とSOMによるダイカスト成形の変形抑制最適条件のモニタリング法の提案

抄録

Increase in quality and decrease in cost of products have been needed in the industrial market. It is necessary to reduce the cost in die-casting products as well that the concept of “Net Shape” becomes popular in light of reductions in machining costs. However, the present technology tends to minimize machining operation instead of completely omitting machining. Thus, the least deformation is desired after the die-casting. Here, we investigate the method to obtain the optimum condition by using orthogonal array and monitoring system for casting condition by SOM (Self Organizing Maps) in order to maintain the optimized casting condition for minimizing deformation. First, the relationship between deformation volume and temperature difference in casting products is found. Through these analyses, we distinct that the products with less temperature difference had less deformation, and obtain the optimum condition by orthogonal array. Next, we suggested a scheme for preparing a basic SOM based on the analysis. It is found that the SOM monitoring system contains effective characteristics to obtain optimum condition for least deformation and monitoring.