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shell molding

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Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005252
EISBN: 978-1-62708-187-0
... Abstract Shell molding is used for making production quantities of castings that range in weight from a few ounces to approximately 180 kg (400 lb), in both ferrous and nonferrous metals. This article lists the limitations or disadvantages of shell mold casting. It describes the two methods...
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Published: 01 December 2008
Fig. 28 Cost of shell molding versus green sand molding for production of a chair seat bracket in ascending quantities. Pattern costs not included More
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Published: 01 December 2008
Fig. 4 Metal pattern with pins for shell molding More
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Published: 30 November 2018
Fig. 11 Shell molding process. Adapted from Ref 9 More
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Published: 01 December 2008
Fig. 30 Cast section of crankshaft from green sand molding and shell-mold casting More
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Published: 01 December 2008
Fig. 2 Shell-mold castings. (a) Shell-mold casting. (b) Wheel cylinder with O-ring grooves. (c) crankshaft More
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Published: 01 December 2008
Fig. 3 An intricately cored value body cast in a shell mold. This shape was economically producible only by the casting process. Cored passages between individual chambers are not visible in the above views. More
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Published: 01 December 2008
Fig. 17 A thin-wall casting that was successfully produced in a shell mold from magnesium alloy AZ63A. Rejection rate was less than 5%. More
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Published: 01 December 2008
Fig. 6 Unusual padding of the center cavity of this stainless steel shell mold casting simplified production. Without the padding, complicated risering would have been necessary and would have caused high residual stresses. More
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Published: 01 December 2008
Fig. 15 Blast-tip gas-fired manifold oven (a) for curing shell molds. Oven can be fitted with extension burners (b) for directing heat into mold cavities. More
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Published: 01 December 2008
Fig. 17 Propeller bushing that was cast in a shell mold without a separate core More
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Published: 01 December 2008
Fig. 20 Shell mold with crack strips in perimeter to prevent cracking of casting cavities by control of thermal expansion More
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Published: 01 December 2008
Fig. 21 Shell mold for long narrow castings that has diamond-shaped crack strips at ends and along sides to prevent cracking and distortion of casting cavities More
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Published: 01 December 2008
Fig. 22 Nine shell-mold castings that were produced to a high degree of dimensional accuracy. The mold mixture was zircon sand with 21/2% resin and 1/2% calcium stearate. The cold coating process was used. (a) 100 kg (220 lb) carbon steel casting (0.25% C) of highway-tractor fifth wheel More
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Published: 01 December 2008
Fig. 23 Shell-mold-cast sector gear for which addition of flow-offs prevented misruns More
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Published: 01 December 2008
Fig. 27 Cost of a conduit elbow produced in various quantities in shell molds and in green sand molds. Pattern and core equipment costs not included More
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Published: 01 December 2008
Fig. 31 Pump casting produced with minimum draft in a shell mold When casting had been poured in a green sand mold, shaft portion required a draft angle of 1┬░ 30 min and had to be machined. More
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Published: 01 December 2008
Fig. 1 Cope side of a shell mold More
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Published: 01 December 2008
Fig. 5 Motorcycle cylinder that was cast in a shell mold made using the cope-and-drag pattern shown More
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Published: 01 December 2008
Fig. 6 Use of three types of electric elements for heating patterns for shell molds More