Abstract
In this study, an online quality control system has been proposed and developed. A quality index, part weight, is measured in each cycle. The difference between this measurement and a quality target is used to adjust mold separation, a process variable. In a cascading fashion, the mold separation is controlled via switchover point and holding pressure, two machine variables, in cycle-to-cycle and within-cycle control. Compared to conventional cavity pressure-based control, the present implementation results in a significant improvement in both long-term and short-term consistency in part quality. In addition, direct quality feedback control has numerous benefits, such as 100% quality inspection and automatic process tuning.
| Original language | English |
|---|---|
| Pages | 2388-2392 |
| Number of pages | 5 |
| State | Published - 2006 |
| Externally published | Yes |
| Event | Society of Plastics Engineers Annual Technical Conference 2006, ANTEC 2006 - Charlotte, NC, United States Duration: 07 05 2006 → 11 05 2006 |
Conference
| Conference | Society of Plastics Engineers Annual Technical Conference 2006, ANTEC 2006 |
|---|---|
| Country/Territory | United States |
| City | Charlotte, NC |
| Period | 07/05/06 → 11/05/06 |
Keywords
- Closed-loop quality control
- Injection molding control
- Process control
- Quality feedback
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