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conventional sand castings

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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
... in shell molds but not in production quantities. As compared to conventional green sand molding, the shell-mold process can produce castings with greater dimensional accuracy and thus reduce the amount of machining required for completion of the part. Shell molds impart a smoother surface to castings...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006548
EISBN: 978-1-62708-210-5
...Abstract Abstract This article aims to comprehensively review and summarize the material properties and engineering data for aluminum alloy castings and their many applications. The discussion focuses on conventional sand, permanent mold, and die castings as well as the premium engineered...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005254
EISBN: 978-1-62708-187-0
... by over an order of magnitude compared to conventional sand casting processes. Recognize that in conventional sand casting, molten aluminum shrinks approximately 6% on solidification and still leaves approximately 1% porosity in sand castings. Thus, in lost foam with pressure where the porosity...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006508
EISBN: 978-1-62708-207-5
... in the lost foam casting process and difficult in the other conventional casting processes, can completely eliminate hydrogen porosity and can decrease unfed shrinkage porosity by over an order of magnitude compared to conventional sand casting processes. Recognize that in conventional sand casting...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006533
EISBN: 978-1-62708-207-5
... and mechanical properties among castings in multiple production runs. The ability to create consistency depends on the manufacturing controls used to prevent variability. The advantage of PSC over conventional sand casting is its ability to produce geometrically complex shapes with very high degrees...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.9781627082075
EISBN: 978-1-62708-207-5
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001061
EISBN: 978-1-62708-162-7
...Factors affecting selection of casting process for aluminum alloys Table 7 Factors affecting selection of casting process for aluminum alloys Factor Casting process Sand casting Permanent mold casting Die casting Cost of equipment Lowest cost if only a few items required Less...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006524
EISBN: 978-1-62708-207-5
...Relative characteristics of aluminum alloys used in sand, permanent mold, and die casting Table 2 Relative characteristics of aluminum alloys used in sand, permanent mold, and die casting Rating scheme: 1, best; 5, worst. Individual alloys may have different ratings for other casting...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005249
EISBN: 978-1-62708-187-0
.... Figure 1 shows that the freezing time for a test casting made in a conventional plaster mold is more than four times as long as that for one made in a hard-rammed green sand mold. Following assembly, the mold is ready for preheating. Some foundries preheat all conventional plaster molds to a pre...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005256
EISBN: 978-1-62708-187-0
...Abstract Abstract The Replicast process is developed to overcome the formation of lustrous carbon defects and carbon pickup observed in conventional evaporative pattern casting processes. This article provides a discussion on the pattern production, process capabilities, advantages...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005187
EISBN: 978-1-62708-187-0
...Abstract Abstract This article discusses the categories and subcategories of shape casting processes. These include single-use processes such as sand, plaster, ceramic, and graphite molding; essentially unpressurized multiuse processes, such as permanent mold; and high-pressure metal mold...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003172
EISBN: 978-1-62708-199-3
... processes Squeeze casting Semisolid metal casting (rheocasting) (a) When sand or plaster complex cores are used instead of metal cores, the term semipermanent mold casting should be used. Fig. 13 Steps in the investment casting process Fig. 9 Lost foam pattern system...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005354
EISBN: 978-1-62708-187-0
... of Nobake Molding Operations , Mod. Cast. , July 28 , 2005 • “Reclamation of No-Bake Organic and Sodium Silicate Sands,” Special Report 16, Steel Founders' Society of America , Dec 1978 • Scott W.D. and Alexander J. , Process Control Tips for a Phenolic Urethane Nobake...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006332
EISBN: 978-1-62708-179-5
..., combined with high elevated-temperature strength and high thermal expansion rates. Consequently, care should be taken not to shake out too hot, and mold cooling is recommended for intricately shaped castings and castings of widely varying section thickness. Conventional ferrous molding sands are used...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009018
EISBN: 978-1-62708-187-0
... location discussed with Fig. 4 . Fig. 16 Conventional molding of a circular sand casting is shown in (a). A specification requiring the large face to be smooth necessitated placing this face in the drag half of the mold, as shown in (b), to obtain maximum smoothness of surface. ...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005251
EISBN: 978-1-62708-187-0
... molding plastic film SAND MOLDING PROCESSES are classified according to the way in which the sand is held (bonded). Most sand casting employs green sand molds, which are made of sand, clay, and additives. Binders are also used to strengthen the cores, which are the most fragile part of a mold...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005328
EISBN: 978-1-62708-187-0
... castings. Conventional ferrous molding sands are used, including green sand, shell mold, and chemically bonded sands. The same precautions taken for high-strength irons apply to these alloys. Solidification should progress from thin to thick sections without interruption. Abrupt changes in section...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006589
EISBN: 978-1-62708-210-5
... of linear thermal expansion 24.7 μm/m °C · from 20–100 °C Alloy 771.0 typical mechanical properties of separately sand-cast test bars Table 3 Alloy 771.0 typical mechanical properties of separately sand-cast test bars Temper Tensile strength, min, MPa (ksi) Yield strength, min, 0.2...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006513
EISBN: 978-1-62708-207-5
... parts for reciprocating and jet-type aviation engines, missiles, forms for concrete, textile machine parts, electric-motor housings, portable- and hand-tool components, support members for outdoor-light standards, and electric griddles and kitchen pots and pans. Compared with sand casting, permanent...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005287
EISBN: 978-1-62708-187-0
...Dimensional limits and tolerances for aluminum castings produced by different processes Table 1 Dimensional limits and tolerances for aluminum castings produced by different processes Sand castings Diameter of cored holes: Tolerance ±0.75 mm (0.030 in.). If cored hole is to be used...