%0 Journal Article %T A Review of Effects of Molding Methods, Mold Thickness and Other Processing Parameters on Fiber Orientation in Polymer Composites %A Ahmed N. Oumer %A Othman Mamat %J Asian Journal of Scientific Research %D 2013 %I Asian Network for Scientific Information %X In injection molded fiber reinforced composites, the mechanical and physical properties of the final product are highly dependent on the patterns of fibers alignment. The orientation of the fibers can be influenced by many factors such as molding methods, materials used, geometry of the part and other processing parameters. Thus, there is considerable interest in studying the factors that affect the fiber orientation, hence the properties of the final product. This study presented a general review on the effects of these factors on fiber orientation in injection molded fiber-reinforced polymer composites. The fiber orientation of a part made by conventional injection molding is compared with those produced by injection-compression and push-pull injection techniques. Effects of injection speed, type of flow and mold thickness on fiber orientation are also discussed. Hence, this review could assist in decisions regarding the design of composite products. %K Polymer composites %K fiber-reinforced %K mechanical properties %K fiber orientation %K injection molding %U http://docsdrive.com/pdfs/ansinet/ajsr/2013/401-410.pdf