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Book Chapter

By H.W. Stoll
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009014
EISBN: 978-1-62708-187-0
... Abstract This article discusses issues that impact a good casting design. The focus is on the casting design in general, and on sand and permanent mold aluminum casting in particular. The article examines the casting design process from a variety of design and processing perspectives...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009015
EISBN: 978-1-62708-187-0
... Abstract This article provides a general introduction on casting processes and design techniques. It discusses the process steps and methods of the main categories of shape casting methods, namely, expendable molds with permanent patterns, expendable molds with expendable patterns, and metal...
Book Chapter

By Michael Gwyn
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009020
EISBN: 978-1-62708-187-0
... Abstract Casting offers a great amount of component design flexibility. This article discusses six casting design parameters that drive the geometry of casting design from a process standpoint. It provides information on the design of junctions and addresses considerations of secondary...
Book Chapter

By Thomas S. Piwonka
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003176
EISBN: 978-1-62708-199-3
... Abstract This article provides general guidelines for casting design to provide progressive solidification, minimize heat concentration, eliminate cores, and prevent distortion. Casting design also affects tolerances. Casting tolerances depend on the alloy being poured, the size of the casting...
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Published: 01 December 2008
Fig. 35 Use of brackets in steel casting design (top). Lightening of a casting that is too massive by means of ribs and recessing (bottom) More
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Published: 01 December 2008
Fig. 25 Good casting design, permitting ideal location of gates, made for efficient production of this aluminum permanent mold casting. Although this casting had a wall thickness of 0.093 in., the recommended minimum for the material and process ( Table 1 ), all surfaces were produced More
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Published: 01 December 2008
Fig. 5 Casting design that would require different shrinkage allowances than those normally used. Dimension X can contract freely, while dimension Y is restrained by the core used to make the hole. More
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Published: 01 December 2008
Fig. 2 Traditional casting design process More
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Published: 01 December 2008
Fig. 4 Structure of guidelines for light metal casting design More
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Published: 01 December 2008
Fig. 19 Casting design and solidification of a simple wedge. (a) Riser placed at narrow end of wedge; shrinkage occurs at wide end. The crosshatched region represents the approximate area of the casting where solidification is first complete, thus cutting off the feeding path of the casting More
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Published: 30 November 2018
Fig. 33 Good casting design permitting ideal location of gates enabled efficient production of this aluminum permanent-mold casting. Although casting wall thickness is only 2.36 mm (0.093 in.), all surfaces were produced to a finish of at least 125 micro-in. More
Book Chapter

By Thomas S. Piwonka
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002484
EISBN: 978-1-62708-194-8
... Abstract Casting offers the cost advantages over other manufacturing methods for most components. This article reviews the aspects of castings with which designers should be familiar, as well as the methods used by foundries to produce high-integrity castings. It discusses the design concepts...
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Published: 01 December 2008
Fig. 24 General design rules for riser necks used in iron casting applications (side view and top view, respectively). (a) General type of side riser. (b) Side riser for plate casting. (c) Top round riser. Source: Ref 33 More
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Published: 01 December 2008
Fig. 24 This aluminum casting illustrates good design for the permanent mold process. There is adequate metal around the cast-in-place inserts, and the web is heavy enough to permit feeding of the center section. More
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Published: 01 December 2008
Fig. 13 Good design facilitated production of this permanent mold casting from aluminum alloy 355. (See text.) More
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Published: 01 December 2008
Fig. 29 Improved design that eliminated one core and eight ribs from a sand casting. This resulted in a stronger, more economical part. More
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Published: 01 December 2008
Fig. 9 Design of a casting for automatic degating. A two-cavity die is used to make electrical conduit connector castings. Use of thin gates and placement of the mass of the casting at the end of a runner allow the use of tumbling to automatically degate this high-volume part. Zinc casting More
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Published: 01 December 2008
Fig. 4 Redesign of casting to minimize heat concentration. (a) Design has numerous hot spots (X junctions) that will cause the casting to distort. (b) Improved design using Y junctions. More
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Published: 01 December 2008
Fig. 17 The effects of design on distortion of castings. (a) Top view of casting; numbers indicate moduli of the two sections. (b) Distortion caused by solidification stresses More
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Published: 01 December 2008
Fig. 42 Redesign of a casting to avoid waterfalling. (a) In this design, waterfalling results when casting is filled from the bottom. (b) Improved design provides a path for the metal to follow as it fills the mold. More