نتایج جستجو برای: molding
تعداد نتایج: 5327 فیلتر نتایج به سال:
Epoxy molding compounds have been developed which can simultaneously underfill and overmold the Flip Chip die in a single transfer molding process. Transfer molding is a well-defined industry process; with suitable mold design, these materials can utilize the currently installed capital base. The ability to apply pressure during the molding process can reduce the void rate under the die as well...
E. Ragan, J. Dobránsky, P. Baron, M. Kočiško, J. Svetlík, Technical University in Košice, Slovakia Most plastic parts used in automobile production are manufactured by injection molding. Their quality depends also on taking out molding and on the manipulators for it. Task of this contribution is to theoretically describe a transport of molding at taking out after injection molding in relation o...
Objective. Short-term nasal forms following primary lip repair were compared between presurgical nasal molding and control groups. Aim. To compare nasal symmetry between patients that had nasal molding and lip repair with those that had only lip repair. Design. Retrospective case-control study Patients. Complete unilateral CL+P patients had basilar and frontal photographs at two time points: (1...
This research work introduces the Early Triassic, Late Triassic-Early Jurassic, and Early Cretaceous silica-rich sand levels at east and central Alborz, Kopeh-Dagh, and Central Iran, and compares them with the Permian silica-rich sand level in the Chirouk mine at east Iran. Ghoznavi and Gheshlaq loose sand in Alborz (Early Triassic-Early Jurassic), Soh quartzite in Central Iran (Early Triassic...
Decision Support for IC Molding Parameter Settings Using Grey Relational Analysis and Neural Network
In order to be competitive in the semiconductor manufacturing industry, quality improvement and yield enhancement have received increasing attention. The research focuses on the molding process of Integrated Circuit (IC) assembly. The defects often occurred in molding process include hole, vein, crack, and floss. In order to raise the yield of molding process, the study applies the Taguchi meth...
Title of Dissertation: ALGORITHMS FOR GENERATING MULTI-STAGE MOLDING PLANS FOR ARTICULATED ASSEMBLIES Alok K. Priyadarshi, Doctor of Philosophy, 2006 Dissertation directed by: Associate Professor Satyandra K. Gupta Department of Mechanical Engineering Plastic products such as toys with articulated arms, legs, and heads are traditionally produced by first molding individual components separately...
http://www.journal-imab-bg.org / J of IMAB. 2016, vol. 22, issue 3/ ABSTRACT Purpose: The purpose of this in vivo study is to register the forces necessary to displace maxillary complete dentures fabricated by compression molding and injection molding techniques on one and the same patient and to compare the interfacial surface tension and capillarity which are achieved by both techniques. Mate...
Cleft of the lip, alveolus and palate (CLAP), is a complex facial deformity, which requires multiple surgeries and bone grafting to correct the defect. Active or passive Pre surgical Orthopedic Molding reduces the deformity and thus reduces number of surgeries to achieve superior post surgical esthetic. Pre-surgical nasoalveolar molding (PNAM) is passive molding which align and approximate the ...
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...
Injection molding technology continually develops, with major milestones including the introduction of the first thermoplastic materials, the reciprocating screw design, the first hot runner systems, engineering materials, the introduction of microprocessors for machine control, Computer Aided Engineering flow simulation software, and recently the application of expert systems for optimized mac...
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