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thin-wall permanent mold casting

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Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009021
EISBN: 978-1-62708-187-0
... steel sand castings, thin-wall aluminum and magnesium castings, thin-wall permanent mold castings, and thin-wall investment castings, with schematic illustrations. thin-wall investment casting thin-wall permanent mold casting thin-wall steel sand casting thin-wall aluminum casting magnesium...
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
... reviews the basic components of mold coatings: refractory fillers, binder, and carrier. Casting defects and suggested corrective actions for permanent mold casting are summarized in a table. The article concludes with a discussion on thin-wall permanent-mold castings. cast aluminum alloys casting...
Image
Published: 01 December 2008
Fig. 9 In this permanent mold casting, functioning of heavier ribs with thin walls induced hot tears and shrinkage at the junctions. Uniformity of wall thickness would have eliminated these defects. More
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005299
EISBN: 978-1-62708-187-0
... explains the sand casting and permanent mold casting of steel. The process design and casting of thin sections are also discussed. thin-wall steel castings castability graphite molds induction melting permanent mold castings sand mold castings steels solidification characteristics melting...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009022
EISBN: 978-1-62708-187-0
... was made to good quality. The design of this casting could have been improved by increasing the thickness of the inner wall to equal that of the heavier adjoining ribs. This uniformity of wall thickness would have eliminated the shrinkage defects. Fig. 9 In this permanent mold casting, functioning...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005260
EISBN: 978-1-62708-187-0
... Manually operated permanent molds for low production may consist of a simple book-type mold arrangement ( Fig. 2 ). For castings with high ribs or walls that require mold retraction without rotation, the manually operated device shown in Fig. 2 can be used. With either type of device, the mold halves...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009023
EISBN: 978-1-62708-187-0
..., increasing the wall thickness and thereby adding unwanted weight was mandatory in order to produce acceptable castings. Permanent Mold Castings Permanent mold castings require flow and feed paths similar to those required by sand castings. The example shown in Fig. 10 was produced in a simple two...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009019
EISBN: 978-1-62708-187-0
... shapes of the cored sections permit easy removal of core sand after the casting has cooled. Fig. 10 Well-proportioned cored passages. Sand core was able to withstand normal foundry handling, provided stable positioning in the mold, and was easily vented. Thin-Wall Casting Sections Formed...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005259
EISBN: 978-1-62708-187-0
... and permanent molds and their production considerations. It describes the speed of rotation, mold speeds curves, and pouring techniques that are considered in the operation of vertical centrifugal casting machines. vertical centrifugal casting machines sand molds vertical centrifugal casting mold...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006588
EISBN: 978-1-62708-210-5
... Abstract Alloy 713.0 is an aluminum-based casting alloy that ages at room temperature to provide high-strength sand and permanent-mold castings. This datasheet provides information on key alloy metallurgy, processing effects on physical and mechanical properties, and fabrication characteristics...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009025
EISBN: 978-1-62708-187-0
...% of the castings at the junctions of the thin wall with the heavier flanges; the thin wall froze and contracted in advance of the heavy tapping bosses and the flanges. Fig. 10 Mold restraint coupled with nonuniform freezing of the various sections of this aluminum (alloy 356) semipermanent mold casting...
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
... of shrinkage tendencies Casting design considerations: draft, wall thickness, internal passages. (For example, parts with undercuts and complex internal passageways can usually be made by sand, plaster, or investment casting but may be impractical or impossible to produce in permanent mold or pressure die...
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 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 methods...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006326
EISBN: 978-1-62708-179-5
... that mold filling is also relatively easy in thin sections ( Ref 8 , 9 ). It is normally recommended not to design ductile iron castings thinner than 4 to 5 mm (0.16 to 0.20 in.) in predominant wall thickness ( Ref 1 , 4 ). However, due to competition from light metal alloys, the interest in thin wall...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006590
EISBN: 978-1-62708-210-5
... effects on physical and mechanical properties, and application characteristics of these alloys. Permanent-mold aluminum casting rotating-beam fatigue curves for 850.0-T101, 850.0-T5, and 852.0-T5 alloys are also presented. aluminum alloy 850.0 aluminum alloy 851.0 aluminum alloy 852.0 aluminum...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006327
EISBN: 978-1-62708-179-5
... and physicochemical state of the liquid metal is of fundamental importance for preparing thin-wall castings with good mechanical properties and performance while avoiding casting defects. The cooling rate is affected primarily by the wall thickness of the casting but also by the ability of the mold material...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003127
EISBN: 978-1-62708-199-3
... weigh less than 10 kg (20 lb), but castings weighing up to 25 kg (50 lb), and sometimes even up to 100 kg (200 lb), are not uncommon. Permanent mold castings have smoother surfaces than those of sand castings and exhibit superior pressure tightness. Tapered metal cores are used to form straight-wall...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005244
EISBN: 978-1-62708-187-0
..., and additives used in coremaking. It discusses the curing of compacted cores by core baking and the hot box processes. The article provides an overview of the core coatings, assembling and core setting, coring of tortuous passages, and cores in permanent mold castings and investment castings. It also discusses...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005277
EISBN: 978-1-62708-187-0
..., for conventional sand and gravity die (permanent mold) casting, the requirement effectively dictates bottom-gating into the mold cavity and excludes any other form of gating at any other height. Also excluded are any filling methods that cause waterfall effects in the mold cavity. Avoiding waterfalls dictates...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005258
EISBN: 978-1-62708-187-0
... horizontal roller-type machine double-face plate machine pouring HORIZONTAL CENTRIFUGAL CASTING is used to cast parts having an axis of revolution. The technique uses the centrifugal force generated by a rotating cylindrical mold to force the molten metal against the mold wall to form the desired...