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Metalworking related failures

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060209
EISBN: 978-1-62708-355-3
... in order to produce high-quality products. Although commercial metalworking operations cannot be analyzed in terms of a simple stress state, workpiece failures are caused by localized tensile stresses in most instances ( Ref 1 – 4 ). In rolling of plate, for example, edge cracking is caused by tensile...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770099
EISBN: 978-1-62708-337-9
... the damaging influence of calcium aluminates on the fatigue limit of case-hardened test pieces, although it is not clear if the fractures were surface or core initiated. It is not uncommon, in studies related to the fatigue strength of case-hardened test pieces, for failures to initiate at inclusions within...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300391
EISBN: 978-1-62708-323-2
... Relating to flammability Pour point Ability to stay liquid when cold Ash Residue left after combusting oil Acid number The acidity of an oil Base number The alkalinity of an oil Gravity A viscosity component related to solvency Color Clear to dark Volatility Ease of evaporation...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240279
EISBN: 978-1-62708-251-8
...Abstract Abstract This chapter describes the general characteristics of two commonly classified metalworking processes, namely hot working and cold working. Primary metalworking processes, such as the bulk deformation processes used to conduct the initial breakdown of cast ingots, are always...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060117
EISBN: 978-1-62708-261-7
... be eliminated. See DIN 7526, now a European standard, EN-10243 (a) . Rotary swaging An incremental metalworking process for reducing the cross-sectional area or otherwise changing the shape of bars, tubes, or wires by repeated radial blows with two or more dies. The work is elongated as the cross-sectional...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240201
EISBN: 978-1-62708-251-8
..., the true strain at failure, ε f , can be determined from the reduction of area, q , by: (Eq 12.17) ε f   =   ln 1 1 − q   The flow curve for many metals in the region of uniform plastic deformation can be expressed by the Holloman power curve relation: (Eq 12.18) σ...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230295
EISBN: 978-1-62708-298-3
...Abstract Abstract The vast majority of beryllium products are manufactured from blocks, forms, or billets of compacted powder that are machined or worked into shape. This chapter describes the metalworking processes used, including rolling, forming, forging, extrusion, drawing, and spinning...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610025
EISBN: 978-1-62708-303-4
...-strain curve is based on the instantaneous cross-sectional area, the curve continues to rise until failure. The strain rate ε ˙ = d ε / d t can also influence the flow stress, particularly at elevated temperatures. The strain-rate sensitivity of metals is low at room temperature...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220085
EISBN: 978-1-62708-341-6
... temperature, and so forth. The major applications of induction technology include through heating, surface heating (for surface heat treatment), metal melting, welding, brazing, and soldering. This chapter summarizes the selection of equipment and related design considerations for these applications...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630001
EISBN: 978-1-62708-270-9
... Book of ASTM Standards , ASTM , 1978 • Timmons P.F. , Solutions to Equipment Failure , ASM International , 1999 • Tung P.P. , Agrawal S.P. , Kumar A. , and Katcher M. , Ed., Fracture and Failure: Analyses, Mechanisms and Applications , Materials/Metalworking...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130133
EISBN: 978-1-62708-284-6
... may be of insufficient quality to be adequately formed without cracking, or the forging process may introduce various types of discontinuities that cause failure during services. For example, well-known forging-related discontinuities include: As case studies were being selected, each...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740103
EISBN: 978-1-62708-308-9
... Desk Edition , 2nd ed. , ASM International , 1998 8. Failures Related to Metalworking , Failure Analysis and Prevention , Vol 11 , ASM Handbook , ASM International , 2002 10.31399/asm.hb.v11.a0003507 9. Altan T. , Ngaile G. , and Shen G. , Cold and Hot Forging...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610585
EISBN: 978-1-62708-303-4
.... Failures Related to Metalworking , Failure Analysis and Prevention , Vol 11 , ASM Handbook , ASM International , 2002 10.31399/asm.hb.v11.a0003507 3. Wilson A.D. , Calcium Treatment of Plate Steels and Its Effect on Fatigue and Toughness Properties , Proc. 11th Annual Offshore...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.9781627083553
EISBN: 978-1-62708-355-3
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170573
EISBN: 978-1-62708-297-6
... of a proper grade for a given application depends on an understanding of the complete process and the dominant failure mechanisms observed in the tool material. Examples of typical applications are shown in Table 2 . Properties of representative cemented carbides used for nonmachining applications Table...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400089
EISBN: 978-1-62708-316-4
... a is the average shear stress at contacting asperity peaks, and τ b is the average shear stress (lower stress) at the lubricant pockets. This model explicitly formulates the real contact area ratio, α, related to τ a and the lubricant behavior related to τ b that is influenced by viscosity, pressure, sliding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.9781627082501
EISBN: 978-1-62708-250-1
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400073
EISBN: 978-1-62708-316-4
.... They are used in automotive mufflers and related components, household appliances, industrial heating equipment, and so forth. Aluminum-Zinc Alloy Coatings Aluminum-zinc alloy coatings have improved corrosion resistance of galvanized parts. One type consists of about 55% Al and 45% Zn; the other type...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060251
EISBN: 978-1-62708-355-3
..., and metalworking. The behavior of materials under high strain rate tensile loads may differ considerably from that observed in conventional tensile tests. High strain rate sensitivity is primarily manifested in variations in yield and failure criteria. Yielding and failure are also affected by stress state...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630169
EISBN: 978-1-62708-270-9
... of the general characteristics and effects of and the methods for preventing or reducing different categories of wear failures, namely abrasive (erosive, grinding, and gouging), adhesive, and fretting wear. References References 1. Failure Analysis and Prevention , Vol 11 , ASM Handbook , ASM...