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casting quality

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260233
EISBN: 978-1-62708-336-2
... charts. It then lays out the steps that would be followed in order to implement statistical testing for billet casting, die performance, or any other process or variable that impacts extrusion quality. The chapter concludes with an overview of the fundamentals of total quality management. control...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220519
EISBN: 978-1-62708-259-4
... Abstract This chapter examines the microstructure of special bar quality (or engineering) steels and how it is influenced by carbon content, tempering temperature, and prior austenitic grain size. It explains how some of the changes are difficult to detect and require special etching and/or...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440243
EISBN: 978-1-62708-262-4
... Abstract A successful heat treating operation is determined by the ability to satisfy the customer's quality requirements consistently and economically. This chapter reviews the steps that are important to produce quality parts in heat treating with a brief practical explanation of each. The...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060149
EISBN: 978-1-62708-261-7
... Abstract This chapter explains how metallography and hardness testing are used to evaluate the quality and condition of metal products. It also discusses the use of tensile testing, fracture toughness and impact testing, fatigue testing, and nondestructive test methods including ultrasonic, x...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260119
EISBN: 978-1-62708-336-2
... Abstract This chapter describes various aspects of the billet making process and how they affect the quality of aluminum extrusions. It begins with an overview of the direct-chill continuous casting technique and its advantages over other methods, particularly for hard aluminum alloys. It then...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410001
EISBN: 978-1-62708-280-8
... castability Design freedom to combine sections and form complex shapes. Advantages include: Cost advantage through reduced number of parts Weight reduction through thin wall capability Potential for high casting-quality Heat treat capability Ability to enhance engineering properties...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280079
EISBN: 978-1-62708-267-9
...-connected porosity, particularly in large castings of iron-nickel- and nickel-base superalloys. Improved fatigue and creep life generally result ( Fig. 5.15 ), because casting quality is improved by HIP. (See Chapter 12 for more on this subject.) Hot isostatic pressing has been applied not only to PC...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140021
EISBN: 978-1-62708-335-5
... Principles of Gating , American Foundrymen’s Society , 1967 • Basic Principles of Risering , American Foundrymen’s Society , 1968 • Bouse G. and Behrendt M. , Metallurgical and Mechanical Property Characterization of Premium Quality Vacuum Investment Cast 200 and 300 Series...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410029
EISBN: 978-1-62708-280-8
.... In addition, the ability to cast several aluminum alloys makes the process suitable for various applications. Recent advances in solidification simulation and flow modeling, coupled with process automation, have positioned the GPM process to meet the most stringent safety quality requirements for...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740047
EISBN: 978-1-62708-308-9
... old, while others did not exist two generations ago. The selection of the correct one to use in a specific casting application depends on the alloy, the dimensional tolerances desired, the quality of the casting, and the price the customer is willing to pay. Most metals and alloys can be cast using...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310155
EISBN: 978-1-62708-286-0
... from 0.010% in stabilized ferritic alloys to about 0.07% in normal austenitic alloys, impossible to produce. The advent of AOD, continuous casting, ladle metallurgy, and powerful hot rolling mills has led to stainless steels of much higher quality produced at lower cost. Ironically, the low processing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140007
EISBN: 978-1-62708-335-5
... magnesium can affect casting quality. Spinels of aluminum and magnesium oxides form with unprotected exposure at high molten metal temperatures. The potential for inclusions is especially important because many applications involve polishing and/or fine surface finishing. Alloys containing >7.0% Mg...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480161
EISBN: 978-1-62708-318-8
.... Large furnaces of this type serve almost exclusively for producing high-quality titanium, zirconium, and other active and refractory metals, some superalloys, and a few steels. Casting is the oldest metals net-shape technology. For thousands of years it provided inexpensive, complex-shaped...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410021
EISBN: 978-1-62708-280-8
... designs or make changes based on the failure mode of the prototypes. It should be emphasized that the supplier of the prototypes should be a qualified casting producer with stringent quality control capability. The prototype casting producer should have: A number of sand castings work successfully...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230253
EISBN: 978-1-62708-298-3
... Abstract This chapter provides an overview of beryllium casting practices and the challenges involved. It discusses the stages of solidification, the effect of cooling rate, the difficulty of heat removal, and the potential for hot cracking. It describes common melting techniques, including...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130151
EISBN: 978-1-62708-284-6
... desirable or undesirable changes in the chemical, physical, and mechanical properties of the metallic materials. The dimensional precision grade of the feeding system should also be taken into consideration. Therefore, the quality of the casting product is related to the physical integrity of the...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310147
EISBN: 978-1-62708-286-0
... Abstract With typical alloy systems, casting is often the most convenient method by which to produce components. This is true for stainless steels, both for corrosion-resisting and for heat-resisting applications. This chapter discusses stainless steel casting alloys and their metallurgy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240095
EISBN: 978-1-62708-251-8
... partial pressure of gas at the metal surface. Fig. 7.13 Maximum solubility of hydrogen in nickel and iron at H 2 pressure = 1 atm. Source: Ref 7 Hydrogen is often removed by vacuum degassing prior to casting. For example, premium-quality steels are commonly vacuum degassed. In addition...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720293
EISBN: 978-1-62708-305-8
... Abstract The inspection of castings normally involves checking for shape and dimensions, coupled with aided and unaided visual inspection for external discontinuities and surface quality. This chapter discusses methods for determining surface quality, internal discontinuities, and dimensional...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140055
EISBN: 978-1-62708-335-5
... Abstract Hot isostatic pressing (HIP) is a process refinement available to address internal porosity in castings. The HIP process may be used, in particular, for applications requiring very high quality and performance. This chapter discusses the principles, advantages, and disadvantages of HIP...