1-20 of 344 Search Results for

casting tolerances

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
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...
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
... operations in design. The article describes the factors that control casting tolerances and provides specific tips for designing castings with uniform wall thickness and unequal sections, designing thin sections, designing for economical coring, designing for functional packaging, and core design principles...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005292
EISBN: 978-1-62708-187-0
... the same as mentioned previously: It eliminates the need for the operator to reach between the dies. Normally, the inserts need to have a tight tolerance when placed into the die. A large die casting production is beyond the operator's reaching capability. Before the die closes, the temperature may...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005186
EISBN: 978-1-62708-187-0
... solidification time and casting geometry. Early 1940s—Statistical process control is first employed as a quality control tool in U.S. machine shops, principally to control dimensional tolerances. Inoculation of gray iron becomes common as high-quality cast irons replace scarce steel. 1941—U.S. Lt. Col. W.C...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005257
EISBN: 978-1-62708-187-0
... flexibility: Horizontal centrifugal casting allows the manufacture of pipes with maximum outside diameters close to 1.6 m (63 in.) and wall thicknesses to 200 mm (8 in.). Tolerances depend on part size and the type of mold used. Quality: The centrifugal action removes unwanted inclusions, dross, cleaner...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005253
EISBN: 978-1-62708-187-0
... Abstract Depending on the size and application, castings manufactured with the expendable mold process and with expendable patterns increase the tolerance from 1.5 to 3.5 times that of the permanent pattern methods. This article reviews the two major expendable pattern methods, such as lost...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005318
EISBN: 978-1-62708-187-0
... product design design tolerance air venting shrinkage THE DESIGNER OF DIE CASTING TOOLING must balance the functional requirements of the part being cast with the cost, speed, and quality requirements of the process, considering properties of the material being cast, the capacity and operating...
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
... Fig. 2 . Dimensional tolerances are compared in Tables 1 , 2 , 3 , for different shape casting processes. Table 4 compares general characteristics of sand casting, permanent mold casting, and die casting of aluminum. Fig. 2 Suggested design details for aluminum alloys. Recommended...
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
... sections are also discussed. thin-wall steel castings castability graphite molds induction melting permanent mold castings sand mold castings steels solidification characteristics melting melt treatment melting furnaces direct arc melting boiling shape casting tolerances core size...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005307
EISBN: 978-1-62708-187-0
... cases, zinc die casting alloys can tolerate these impurity amounts up to the limit of their solubility during solidification (generally <0.02%). The quantities of these elements present in excess of solubility limits will form oxides and/or complex intermetallic compounds, especially when iron is...
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
... higher permeability than nonferrous castings. Silica was the refractory of choice in the early days of the process, but today (2008), castings with high dimensional tolerances are delivered with various low-expansion sands. The problem with silica sand is that the material has a high coefficient of...
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
... castings, but production quantities should be high enough to justify the cost of the molds. Compared to sand casting, permanent mold casting permits the production of more uniform castings, with closer dimensional tolerances, superior surface finish, and improved mechanical properties. In many applications...
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
... Table 1 Shape casting processes ratings chart Mold method Capabilities Applicable metals Productivity (a) Disposable cores Casting size Dimensional control Expendable mold with permanent patterns  Bonded sand processes   Green sand All 5 Yes Unlimited...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005267
EISBN: 978-1-62708-187-0
..., multiple-cavity combination, or unit dies. However, dies that are designed to produce zinc alloy castings can seldom be used to produce castings of aluminum alloys or other metals that are cast at higher temperatures, because zinc alloys can be cast at thinner sections, smaller radii, and closer tolerances...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005306
EISBN: 978-1-62708-187-0
... method coupled with the adaptation of hot isostatic pressing (HIP) to the most critical castings (see the article “Titanium and Titanium Alloy Castings” in this Volume). Significant design complexity, tolerance, and surface-finish control have been achieved, and large parts approaching 1.5 m (5 ft...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005266
EISBN: 978-1-62708-187-0
... higher than for gravity or low-pressure casting. The ability to produce castings with close dimensional tolerances greatly reduces machining operations. Die castings have good surface finish, which is a prime requirement for plating. Die castings can be produced with much thinner wall thickness, reducing...
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 focuses on casting design in general and on sand and permanent mold aluminum casting in particular. It examines the casting design process from a variety of design and processing perspectives. Excessive design iterations can adversely impact the casting design. The article...
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
... part Introduce molten metal to the part in the selected casting process In terms of capability, each shape casting process has its niche, depending on the metal or metals being cast, productivity; component size, dimensional tolerances, and configuration details. The choice of pattern materials...
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
... leak path to atmosphere (via a double-oxide film or via a liquid region in contact with the surface at a hot spot) is rather easy in many castings, making the whole principle of uphill feeding so risky that it should not be attempted where porosity cannot be tolerated. The recent practice of active...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005286
EISBN: 978-1-62708-187-0
... rates an order of magnitude greater (180,000 Mg/yr, or 400 million lb/yr) than strip casters and, as opposed to strip casting, are relatively alloy-tolerant. Casting speeds approximate 4 m/min (13 ft/min). The metallurgical structure of the slab and the reroll gage product is similar to that of metal...