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- Title
Warpage phenomenon of thin-wall injection molding.
- Authors
Chiang, Yuh-Chyun; Cheng, Hsin-Chung; Huang, Chiung-Fang; Lee, Jeou-Long; Lin, Yi; Shen, Yung-Kang
- Abstract
This study investigates warpage of electronic dictionary battery covers fabricated using thin-wall injection molding as a replacement for conventional insert molding. The primary concern is the molding window in thin-wall injection molding for acrylonitrile-butadiene styrene (ABS) and polycarbonate (PC)+ABS plastics. Finally, the process parameters for thin-wall injection molding that eliminate warpage of electronic dictionary battery covers are identified. Experimental results demonstrate that the area of the molding window for ABS exceeds that for PC+ABS. Analysis of the molding window reveals that ABS is more appropriate than PC+ABS for battery covers. Low melt temperature, high injection speed, and high packing pressure eliminate battery cover warpage. Melt temperature is the most important process parameter for eliminating warpage when using both ABS and PC+ABS.
- Subjects
CHEMICAL molding; ELECTRIC batteries; MANUFACTURING processes; ACRYLONITRILE; STYRENE; POLYCARBONATES; TAGUCHI methods; LOW temperatures
- Publication
International Journal of Advanced Manufacturing Technology, 2011, Vol 55, Issue 5-8, p517
- ISSN
0268-3768
- Publication type
Article
- DOI
10.1007/s00170-010-3106-4