Real-time Diagnosis of Micro Powder Injection Molding Using Integrated Ultrasonic Sensors
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C.-C. Cheng
Abstract
Real-time diagnostics of ceramic powder injection molding using a commercial micromolding machine was performed using ultrasound. Miniature ultrasonic sensors were integrated onto the mold insert. Melt front, solidification, temperature variation and part detachment of the feedstock inside the mold cavity were observed. It has been demonstrated that ultrasonic velocity in feedstock inside the mold cavity, the ultrasonic contact duration during which the part and mold are in contact, and holding pressure can be used to assist with optimization of injection and cooling parameters to minimize energy consumption and maximize process efficiency.
Acknowledgments
The author would like to thank M. Kobayashi for fabricating the UTs, and Y. Thomos, V. So, and S. Mercier for technical assistance in PIM experiments. Financial supports of Joint Science and Technology Fund of National Research Council Canada and British Council, and the Natural Sciences and Engineering Research Council Canada are acknowledged.
References
1 German, R. M., in: Powder Injection Molding: Design and Application. Innovative Material Solutions Inc. Publishers, State College, PA, p. 1/8 (2003)Search in Google Scholar
2 Piotter, V., Benzler, T., Gietzelt, T., Ruprecht, R., Haubelt, J.: Adv. Engineer. Materials 10, p. 639 (2000)10.1002/1527-2648(200010)2:10<639::AID-ADEM639>3.0.CO;2-ASearch in Google Scholar
3 Gietzelt, T., Piotter, V., Jacobi, O., Riprecht, R., Hausselt, J.: Adv. Engineer. Materials 5, p. 139 (2003)10.1002/adem.200390022Search in Google Scholar
4 Whiteside, B. R., Martyn, M. T., Coates, P. D., Allan, P. S., Hornsby, P. R., Greenway, G.: Plastics, Rubber and Composites 32, p. 231 (2003)10.1179/146580103225002650Search in Google Scholar
5 Yoshikawa, K., Ohmori, H.: RIKEN 34, p. 13 (2001)10.1002/hbm.1023Search in Google Scholar
6 Piotter, V., Bauer, W., Benzler, T., Emde, A.: Microsystem Technologies 7, p. 99 (2001)10.1007/s005420100094Search in Google Scholar
7 Hongerholt, D. D., Rose, J. L., German, R. M.: JOM 9, p. 24 (1996)10.1007/BF03223068Search in Google Scholar
8 Hongerholt, D. D., Rose, J. L., German, R. M.: NDT&E International 30, p. 389 (1997)10.1016/S0963-8695(97)00004-2Search in Google Scholar
9 Ono, Y., Cheng, C.-C., Kobayashi, M., Jen, C.-K.: Polym. Eng. Sci. 45, p. 606 (2005)10.1002/pen.20310Search in Google Scholar
10 Kobayashi, M., Ono, Y., Jen, C.-K. Cheng, C.-C.: IEEE Sensors Journal 6, p. 55 (2006)10.1109/JSEN.2005.856119Search in Google Scholar
11 Kobayashi, M., Jen, C.-K.: Smart Materials and Structures 13, p. 951 (2004)10.1088/0964-1726/13/4/033Search in Google Scholar
© 2007 Walter de Gruyter GmbH, Berlin/Boston, Germany
Articles in the same Issue
- Contents
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- Functionalization of Low Density Polyethylene with Ricinol-2-oxazoline Methyl Maleate in a Twin-screw Extruder
- Modelling of Phase Transitions and Residual Thermal Stress of CTBN Rubber Modified Epoxy Resins during a Pultrusion Process
- Real-time Diagnosis of Micro Powder Injection Molding Using Integrated Ultrasonic Sensors
- Rheological Behavior of HEUR Mixtures in Aqueous Media
- Spinnability and Dyeability for Copolymer/Nano-SiO2 Fiber of Glycol and 1,2-Propanediol with PTA
- Development of a Novel Transcription Molding Process to Fabricate Sophisticated Polymer Products with Precise Microstructure and High Transparency Applicable to Display Devices and Bio-chips
- Effect of Aspect Ratio of Whisker on the Fibrillation of Liquid Crystalline Polymer in Polysulfone Matrix
- Gas Assisted Injection Molding of an Industrial Part: 3D Simulation Provides Virtual Molding Trials
- Analysis of Film Blowing with Flow-enhanced Crystallization
- Analysis of Film Blowing with Flow-enhanced Crystallization
- A Composite Model for Melting, Pressure and Fill Factor Profiles in a Metered Fed Closely Intermeshing Counter-rotating Twin Screw Extruder
- Surface Defects of TPO Injected Foam Parts for Automotive Applications
- PPS News
- PPS News
- Seikei-Kakou Abstracts
- Seikei-Kakou Abstracts
Articles in the same Issue
- Contents
- Regular Contributed Articles
- Functionalization of Low Density Polyethylene with Ricinol-2-oxazoline Methyl Maleate in a Twin-screw Extruder
- Modelling of Phase Transitions and Residual Thermal Stress of CTBN Rubber Modified Epoxy Resins during a Pultrusion Process
- Real-time Diagnosis of Micro Powder Injection Molding Using Integrated Ultrasonic Sensors
- Rheological Behavior of HEUR Mixtures in Aqueous Media
- Spinnability and Dyeability for Copolymer/Nano-SiO2 Fiber of Glycol and 1,2-Propanediol with PTA
- Development of a Novel Transcription Molding Process to Fabricate Sophisticated Polymer Products with Precise Microstructure and High Transparency Applicable to Display Devices and Bio-chips
- Effect of Aspect Ratio of Whisker on the Fibrillation of Liquid Crystalline Polymer in Polysulfone Matrix
- Gas Assisted Injection Molding of an Industrial Part: 3D Simulation Provides Virtual Molding Trials
- Analysis of Film Blowing with Flow-enhanced Crystallization
- Analysis of Film Blowing with Flow-enhanced Crystallization
- A Composite Model for Melting, Pressure and Fill Factor Profiles in a Metered Fed Closely Intermeshing Counter-rotating Twin Screw Extruder
- Surface Defects of TPO Injected Foam Parts for Automotive Applications
- PPS News
- PPS News
- Seikei-Kakou Abstracts
- Seikei-Kakou Abstracts
