In-Mold Rheoiogy Curves with Feedstock and Mold Dimension

摘要

In this work, in-mold rheoiogy curves were generated by injection molding machine and the effects of feedstock and mold dimension on in-mold rheoiogy curve were studied. The rheoiogy within mold in uMIM 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 rheoiogy curve. The dimensional deviation was below about 5 urn in the micro part injected with the optimum speed.