http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
사출 성형 공정에서의 수축 현상 최소화를 위한 냉각 채널 설계
문형준(Hyoung_jun Moon),이상교(Sangkyo Lee),조종두(Chongdu Cho) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
During the whole injection molding process, the cooling effect should be taken into account since it affects the roughness of the surface, the reduction of shrinkage and the quality of the final product as well, Varying cooling temperature from inner to outer surfaces may cause shrinkage and warpage. In order to prevent the occurrence of shrinkage and warpage, a proper scheme of cooling process must be adopted. Based on the concept of baffle channel pattern, cooling system model has been studied. A numerical simulation for analyzing the shrinkage phenomenon in the proposed model is performed by using commercial CAE package MOLDFLOW. The simulation results present a good prediction of the shrinkage phenomenon during the injection molding process.
사출 성형 공정에서 wide-thin 제품의 변형 감소를 위한 연구
김재민(Jaemin Kim),문형준(Hyoung_jun Moon),심길보(Kil bo Sim),이상교(Sangkyo Lee),조종두(Chongdu Cho) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.11
Injection molding is used to manufacture various kinds of products including very thin plate like frames. One such product is Door video phone system Panel which is our present object of investigation. During the molding process, large deflection problems in the final product always provokes for the several trials for the accuracy. To solve the issue we use Moldflow6.2 which is injection molding simulation software. It simulates the product exactly the way it happens in actual manufacturing environment. Differences in the geometrical parameters such as thickness changes will lead to the large deformation problems in the frame. However in our present study we simulate it in a well defined condition under several trials. Interesting observations are made in minimizing the deformation of the frame during the injection molding process. This way of approach is very useful in further works if any changes have to be made in the product.