Title of Thesis: Computer Aided Design of Side Actions for Injection Molding of Complex Parts Ashis Gopal Banerjee, Master of Science, 2006 Thesis directed by: Associate Professor Satyandra K. Gupta Department of Mechanical Engineering Often complex molded parts include undercuts, patches on the part boundaries that are not accessible along the main mold opening directions. Undercuts are molded...

Injection molding is a manufacturing technique that, through filling of a mold cavity (typically made from steel or aluminum alloys) with molten polymer, produces plastic parts. The geometry of the mold cavity is identical to the desired part shape, after taking into account thermal shrinkage. This manufacturing process is an economical and reliable way to mass-produce a variety of parts. Tradi...

Core pin driving method in the injection mold was proposed, which core pins were installed runners located on both sides of flow front meeting area, and internal melt generated at part by up-and-down movement pins. In this paper, using a new installation position changed inside cavity, first, simple for estimating caused drive proposed. Then, method, flow, glass fiber orientation, tensile stren...

The presence of an already molded component during the second and subsequent molding stages makes multi-material injection molding different from traditional injection molding process. Therefore, designing multi-material molded objects requires addressing many additional manufacturability considerations. In this paper, we first present an approach to systematically identifying potential manufac...

Background: The evaluation of curricula shows that in educational systems, attention is paid only to the intellectual dimension of learners and other dimensions of existence, especially the spiritual and moral dimension, are neglected. The current research was conducted with the aim of providing a spiritual curriculum model based on ethics. Method: In terms of practical purpose, this research ...

A passive sensing node technology is introduced for monitoring the integrity of RF coaxial transmission lines and associated RF connectors in the UHF range of frequencies. Each passive sensing node is powered by a transmission line coupler inside the coaxial cable. Passive sensing node sensing elements, fineline interconnect metallurgy, transmission line coupler, and electronics are packaged on...

Injection molding is an important mass-production tool in the optical industry. In this research our aim is to develop a process of combining ultraprecision diamond turning and injection molding to create a unique low-cost manufacturing process for progressive addition lenses (PALs). In industry, it is a well-known fact that refractive index variation and geometric deformation of injection mold...