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hardening depth

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Published: 01 August 2015
Fig. 2.12 Interrelationship of heating time, power density, and hardened depth at cycle times (a) 0.4 s, (b) 1.15 s, and (c) 6.5 s. Source: Ref 7 More
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Published: 01 January 2015
Fig. 21.2 The effect of flame speed on depth of hardening of a 1050 steel forging. Source: Ref 21.3 More
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Published: 01 April 2013
Fig. 20 The depth and extent of hardening in these induction hardened gear teeth made of AISI 1055 carbon steel was determined by macroetching with 10% aqueous HNO 3 . Surface hardness was 53 to 54 HRC while the unhardened area was about 23 HRC. Source: Ref 2 More
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Published: 01 December 1984
Figure 1-32 The depth and extent of hardening in these induction-hardened gear teeth made of AISI 1055 carbon steel was determined by macroetching with 10% aqueous HNO 3 . Surface hardness was 53 to 54 HRC (Rockwell hardness on the C scale), while the unhardened area was about 23 HRC. More
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Published: 01 June 1988
Fig. 7.6 Case depth obtained by induction surface hardening of a steel bar as a function of ∫   I c 2 dt , where l c and t denote induction coil current and time, respectively. From J. D. Verhoeven, H. L. Downing, and E. D. Gibson, Journal of Heat Treating , Vol 4, No. 3, June More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050009
EISBN: 978-1-62708-311-9
... tend to be confined to the outer surface of the workpiece, a phenomenon known as the skin effect. The chapter includes several data plots showing how the depth of heating varies with frequency and how heating time, power density, and thermal conduction rate correspond with hardening depth...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220039
EISBN: 978-1-62708-259-4
... Abstract This chapter discusses the practices and procedures used to reveal and record macrostructural features such as hardening depth, weld thickness, crack size, porosity, hot folds, and machining and tooling marks. It provides information on sectioning, sample location, orientation, surface...
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Published: 01 October 2011
Fig. 31 Position of hardness indentations for determination of the effective hardening depth. Source: Ref 8 More
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Published: 01 September 2008
Fig. 57 Determination of upper and lower confidence limit and arithmetic mean values of residual stresses through the hardened depth. Source: Ref 54 More
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Published: 01 August 2015
Fig. 11.3 Interrelationship among heating time, surface power density, and hardened depth for various induction generator frequencies. Source: Ref 3 More
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Published: 01 June 1988
Fig. 6.16 Interrelationship among heating time, surface power density, and hardened depth for various induction generator frequencies. From M. G. Lozinskii, Industrial Applications of Induction Heating , Pergamon Press, London, 1969 ( Ref 12 ) More
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Published: 01 September 2008
Fig. 76 Maximum temperature drop as a function of depth in the hardened steel during grinding with various work speeds, V w . Source: Ref 15 , 65 , 66 More
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Published: 01 September 2008
Fig. 77 Grinding temperature cycles in different depths in the hardened steel at given grinding conditions. Source: Ref 15 , 65 More
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Published: 01 November 2012
Fig. 21 Effect of case depth on fatigue life. Fatigue tests on induction-hardened 1038 steel automobile axle shafts 32 mm (1.25 in.) in diameter. Case depth ranges given on the chart are depths to 40 HRC. Shafts with lower fatigue life had a total case depth to 20 HRC of 4.5 to 5.2 mm (0.176 More
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Published: 01 December 1984
Figure 6-4 Comparison of the effective case depth of flame-hardened AISI 8660 alloy steel assessed by visual estimation and by microhardness (500-g) traverses (100 ×, nital, transition zone shown). More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220085
EISBN: 978-1-62708-341-6
... of induction through heat treating operations is very similar to those procedures employed for through heating prior to hot working, which were discussed in the previous section. In this section, only guidelines for surface and localized hardening and annealing processes are discussed. A more in-depth...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320175
EISBN: 978-1-62708-347-8
... hardened and on process details involved in induction hardening gears. It discusses the processes involved in heating, quenching, and tempering of gears. Information on surface hardness and case depth after induction hardening, induction hardening problems, the applications of induction hardening gears...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250249
EISBN: 978-1-62708-345-4
... not lend itself to carburizing and quenching the entire part. This chapter focuses on the processes involved in the induction and flame hardening, covering the applicable materials, hardening patterns, preheat treatment, quenching, tempering, surface hardness, case depth, hardening problems, dual-frequency...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440159
EISBN: 978-1-62708-262-4
... softer products such as ferrite or pearlite so rapidly that only the outer layer is cooled quickly enough to form martensite. Figure 1 shows that only a narrow band of full hardness is obtained after heating and quenching. Because of the lesser mass involved, the depth of the hardened zone is greater...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.htpa.t53310091
EISBN: 978-1-62708-346-1
... the use of ultrasound to determine the depth of hardening in a metal or alloy. The chapter reviews methods used to check and calibrate hardness testing machines and indenters and the use of hardness reference blocks for verification and calibration of test machines. It also addresses conversion...