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http://dx.doi.org/10.3795/KSME-A.2010.34.10.1513

Comparative Analysis of Injection Molding Process by On-line Monitoring in Cylinder of Injection Molding Machine and in Cavity of Mold  

Park, Hyung-Pi (Molding & Forming R&D Department, Korea Institute of Industrial Technology)
Cha, Baeg-Soon (Molding & Forming R&D Department, Korea Institute of Industrial Technology)
Tae, Jun-Sung (Dept. of Mechanical Engineering, Ajou Univ.)
Choi, Jae-Hyuk (Dept. of Mechanical Engineering, Ajou Univ.)
Rhee, Byung-Ohk (Dept. of Mechanical Engineering, Ajou Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.34, no.10, 2010 , pp. 1513-1519 More about this Journal
Abstract
Recently, on-line process monitoring systems using sensors are being extensively used to produce highquality products. However, the difficulty in installing the sensors within the mold in the cases of micro-molds, optical molds, and molds with complex structures is a serious disadvantage of such process monitoring systems. In this study, the quantitative index of a process monitoring system was evaluated with the mold cavity pressure and the nozzle pressure for the injection molding machine. In order to evaluate the effect of the nozzle pressure, we performed correlation analysis for the weight of the molded product. We also examined the control characteristics of the injection molding machine by analyzing the effect of multistage injection speed, holding pressure, and injection pressure limit on the process monitoring data.
Keywords
Injection Molding; Nozzle Pressure; Cavity Pressure; Process Monitoring System; Injection Speed;
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