In-Mold Rheology Curves with Feedstock and Mold Dimension

Jin Man Jang; Bermha Cha; Won Sik Lee; Jung Sik Seo; Se Hyun Ko; Seong Ho Son

doi:10.4028/www.scientific.net/AMR.291-294.3028

Paper Titles

Synchronous Control of Multi-Integrated System of Electro-Hydraulic with Mechanic Based on Virtual Axis Model
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Research on Output Power of Plasma for PCVD Synthesizing Silica Glass
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Investigation of Dry Cutting and Applications of Cutting Fluid in Ball-End Milling Process
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Development of Recycled TiH₂ Feedstock for Powder Injection Molding
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In-Mold Rheology Curves with Feedstock and Mold Dimension
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Manufacturing Technology of μ-Gear and Mold by Fe-Ni Alloy Electroforming
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In-Process Monitoring and Estimation of Tool Wear on CNC Turning by Applying Multi-Sensor with Back Propagation Technique
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Development of a HLA/RTI for High Performance Simulation
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Color Separation Technique of Jacquard Fabric and the Improved Method Thereof
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In-Mold Rheology Curves with Feedstock and Mold Dimension

Abstract:

In this work, in-mold rheology curves were generated by injection molding machine and the effects of feedstock and mold dimension on in-mold rheology curve were studied. The rheology within mold in µMIM process depends on the shape and/or size of cavity and process conditions rather than intrinsic viscosity of feedstock. The optimum injection speed was determined in region of Newtonian flow of in-mold rheology curve. The dimensional deviation was below about 5 µm in the micro part injected with the optimum speed.