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Showing 1 to 20 of 183 for “"molds"”.
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Gate design for injection molds
Generally, the model developed in this investigation predicted quite well the values of the parameters measured experimentally. In certain cases, deviations were observed, but these were due to known factors which have been described in the previous section. This model represents the first link in …
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Liquid metal flows in continuous casting molds
Der Effekt eines externen Magnetfeldes auf die mehrphasige und turbulente Strömung in Stranggußkokillen und deren Wechelspiel führt in den wissenschaftlichen Arbeiten zu widersprüchlichen Aussagen. Die verschiedenen Prozessparameter können innerhalb eines kleinen Varianzbereichs entscheidenden …
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Fluidity of aluminum in green sand molds
Production of casting in sand molds is the basic original method employed by the foundry industry. Other methods are the results of the technological advances, but none has resulted in the extreme flexibility of the sand casting process. The control of the sand properties is important in order to …
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Mold Induced Asthma: Not all Molds are Created Equal
… inflammatory phenotypes induced by individual molds and the mechanisms underlying those phenotypes. The work in this dissertation uses two molds that are common in the Ohio River Valley, Aspergillus versicolor and Cladosporium cladosporioides. In our model mice were repeatedly exposed to either …
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Electroforming of personalized miniature metal parts using additively manufactured molds
… on the development of additively manufactured molds to facilitate the electroforming of personalized metal parts. The methodology encompasses standardized mold design, experimental procedures for mold development and electroforming, and a simulation model for visualizing and predicting the …
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Thermo-Mechanical Behavior During Steel Continuous Casting in Funnel Molds
… steel shell in continuous casting funnel molds, with the goal of understanding the effect of funnel shape on the solidifying steel shell. The numerical models have been calibrated with plant measurements from the Corus Direct Sheet Plant in IJmuiden, The Netherlands, and are used to …
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Implementation of low thermal inertia injection molds using conformal passages
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1995.
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The design, manufacturing and use of economically friendly injection molds
Much of the polymer manufacturing done today involves the process of injection molding. It can be difficult to gain experience in the art of designing and building tooling for this process outside of industry. The goal of this project is to simplify the process involved in the design of an …
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Identification of Volatile Compounds Produced by Brevibacterium Linens that Inhibit Molds
… and/or teratogenic toxins (73) produced by molds commonly associated with food has changed this innocuous and frequent inconvenience into a serious health consideration. The presence of mold on or in cheese is a common occurrence, indeed, many cheeses depend upon molds to provide …
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Optimization of conformal cooling channels in 3D printed plastic injection molds
… of such channels in plastic injection molds. Numerical models have been developed here to represent the thermo-mechanical behavior of the molds and predict the stress and cooling time. The model is then validated experimentally and used in conjunction with DOE (Design of Experiments) to …
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Biological control of postharvest phytopathogenic molds promoted by food-isolated yeasts
In questo studio sono stati valutati i meccanismi d'azione coinvolti nel processo di biocontrollo di muffe patogene del post raccolta di ceppi di lievito appartenenti alle specie Wickerhamomyces anomalus, Metschnikowia pulcherrima, Aureobasidium pullulans e Saccharomyces cerevisiae. Per ogni …
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Fluid Flow Characterization in Rapid Prototyped Common Iliac Artery Aneurysm Molds
… modeling could be employed to manufacture molds for vascular constructs, ii) whether vascular constructs could be created from these molds, and iii) to verify practical equivalence between observed fluid velocities. Dye tracking was to be employed to characterize fluid velocity profiles …
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An investigation of several variables in the strength of shell molds
… curing temperatures on the strength of shell molds, A curing temperature of 500°F is more desirable than one of 600°F.
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Automatic tool path generation for the rough machining of dies and molds.
… machining of sculptured surfaces on dies and molds is presented. The system first decomposes a designed part into a number of parallel layers normal to the z-axis and determines the shape of the part at each of these layers. Then, a geometric description of each cutting layer shape including …
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Development of an ultraprecision shaping machine for manufacturing of Stavax lens molds
The production of high-precision aspheric microlenses has become increasingly difficult due to an increase in the complexity of the profile, the decrease in the lens’ size, and the demand for tighter tolerances. Machines built to fabricate these lenses generally include several expensive components …
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Design of simple multi-use thermoforming molds for the beginner machinist designer
… detail designs to come up with thirty seven molds, out of the five hundred and sixty mold possibilities, which students may use in multiple ways. Choosing Renshape®5025, a polyurethane based thermoset foam for the mold material, allows the limited facility in the EDS lab to repair and …
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Innovative Design: Design of a Press System and Molds to Produce a Skateboard Deck.
<p>Skateboarding is a passion for many people. Homemade skateboard machinery has been fabricated throughout the country. While the demand for skateboards is steady; there is a steady growth in the homemade skateboard deck market. The desire to create a one of a kind deck that expresses a person's …
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