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An experimental study of the fluid mechanics of filling a small part of modular moldMiller, Mark Wade, 1967- 01 May 1991 (has links)
Investment casting has been an important form of metal casting
for many years, but little is understood about the fluid flows that
occur during mold filling. A key to quality castings is the
understanding and control of the fluid flows that are present when the
mold is filled with molten metal. It is thought that with a greater
understanding of these flows, better control can be maintained and the
end result will be a more efficient process that produces better parts.
The subject of this thesis is the experimental study of the fluid
mechanics of filling a small part mold. The experiments included
tests on different downsprues, wells, runners, and chokes. The
collected data were analyzed and the following recommendations were
made:
The shape of the downsprue, whether tapered or straight, does
not seem to be important as long as the minimum area is small enough
to provide the required choking.
The use of a well has contributed to the smoothness of a flow,
but its effect can be provided instead by chokes.
Overflow chokes in the horizontal portions of the mold seem to
be more effective than choking in the downsprue, but the use of both
improves the flow.
While runner extensions and underflow chokes might help to
reduce impurities, they do little to help the smoothness of the flow. / Graduation date: 1991
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Cold shut formation in castingsBittencourt, Luiz Augusto Siqueira. January 1979 (has links)
No description available.
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A theoretical study of interfacial resistance in metal casting with heat pipe and chillLodhia, Ashwin V. 05 1900 (has links)
No description available.
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Castability control in metal casting via fluidity measures Application of error analysis to variations in fluidity testing.Dewhirst, Brian A. January 2008 (has links)
Thesis (Ph. D.)--Worcester Polytechnic Institute. / Keywords: castability; metal casting; error analysis; casting fluidity; a356; solidification processing; fluidity. Includes bibliographical references (leaves 85-90).
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The effect of section size on the mechanical properties of copper-base alloy castingsBhawalkar, Pradip Devidas, January 1970 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1970. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
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Assessment of the accuracy of a computational casting model.Tjoa, Robertus Tjin Hok, Carleton University. Dissertation. Engineering, Mechanical. January 1992 (has links)
Thesis (M. Eng.)--Carleton University, 1992. / Also available in electronic format on the Internet.
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Optimization of the heat treatment of semi solid processed A356 aluminum alloyDewhirst, Brian A. January 2005 (has links)
Thesis (M.S.)--Worcester Polytechnic Institute. / Keywords: microstructure; casting; Fluid Bed; Quality Index; Aluminum; A356; heat treatment; SSM; Semi Solid Metal Includes bibliographical references. (p.105-106)
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Heat-transfer analysis of casting solidification and comparison with geometric modelingSeume, J. January 1984 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1984. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 149-153).
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Factors affecting feeding in ductile iron castingsPlutshack, Lee. January 1975 (has links)
Thesis (M.S.)--University of Wisconsin--Madison. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaf 70).
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Development of a computer risering programSchmidt, David Carl. January 1982 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1982. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 86-89).
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