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grinding retemper burns

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320033
EISBN: 978-1-62708-347-8
.... The tooth needs to be sectioned perpendicular to the hardened surface. Cutting or grinding that would affect the original hardness is to be avoided. Polishing of the specimen is quite important. This polishing should be done finely enough so that hardness impressions are unaffected. A Tukon (Wilson...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250163
EISBN: 978-1-62708-345-4
... with carburizing are then covered, followed by the processes involved in heat treat distortion and shot peening of carburized and hardened gears. Information on grinding stock allowance on tooth flanks to compensate for distortion is also provided. The chapter further discusses the applications of carburized...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770171
EISBN: 978-1-62708-337-9
... and reducing the propensity of quenched carburized steels to burn and crack during surface grinding. The chapter includes numerous data plots and tables showing how the various treatments influence hardness, wear resistance, tensile properties, and fatigue and fracture behaviors. bending fatigue carbon...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610147
EISBN: 978-1-62708-303-4
..., such as corrosion pits or grinding burns. Fig. 34 Surface of a fatigue fracture in a 1050 steel shaft, with hardness of approximately 35 HRC, that was subjected to rotating bending. Presence of numerous ratchet marks (small shiny areas at surface) indicates that fatigue cracks were initiated at many...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130043
EISBN: 978-1-62708-284-6
..., a large anisotropy in material properties also results. Due to the drawing operation, cracks or microcracking can occur. This could be due to improper lubrication or improper die design. The localized changes in ductility can also contribute to failure. Machining and grinding can create high residual...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610585
EISBN: 978-1-62708-303-4
... of the problems in heat treated parts are attributed to faulty heat treatment practices, such as overheating and burning, nonuniform heating and quenching, a deficiency in the steel grade used, part defects, improper grinding, and/or poor part design. Overheating and Burning of Low-Alloy Steels When low...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200437
EISBN: 978-1-62708-354-6
... in the product of combustion, or the products of combustion are oxidizing to the metal being heated. Atmosphere, Reducing . . . Furnace atmosphere which absorbs oxygen under suitable conditions, or in which there is insufficient air to completely burn the fuel, or the product of combustion is reducing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240395
EISBN: 978-1-62708-251-8
... range and immediately quenched to produce fresh martensite at the surface. The part is then retempered to produce the desired surface hardness. The hard surface layers and the soft core will generally be separated by a cushion layer of bainite that helps in reducing cracking and spalling. In addition...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2024
DOI: 10.31399/asm.tb.phtpp.t59380235
EISBN: 978-1-62708-456-7
... ciency of water at the vapor phase or hot stage of the quenching process. brittle fracture Separation of a solid accompanied by little or no macroscopic plastic deformation. Typically, brittle fracture occurs by rapid crack propagation with less expenditure of energy than for ductile fracture. burning (1...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2024
DOI: 10.31399/asm.tb.phtpp.9781627084567
EISBN: 978-1-62708-456-7
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740271
EISBN: 978-1-62708-308-9
... time for quenching of workpieces past the nose of the TTT curve. Martempering is especially appropriate for carburized parts, such as splined shafts, cams, and gears, because these parts generally are more difficult to grind, more costly to fabricate, and are made to closer dimensions than are parts...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.9781627082822
EISBN: 978-1-62708-282-2
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030380
EISBN: 978-1-62708-282-2
.... Atmospheric precipitation with a pH below 5.6 to 5.7. Burning of fossil fuels for heat and power is the major factor in the generation of oxides of nitrogen and sulfur, which are converted into nitric and sulfuric acids in atmospheric moisture (fogs and precipitation). See also atmospheric corrosion. acrylic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060197
EISBN: 978-1-62708-261-7