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heat treating operation

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Published: 30 June 2023
Fig. 3.16 Typical heat treating operations and tempers for heat-treatable aluminum alloys More
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Published: 31 December 2020
Fig. 11 Schematic of typical heat treating operations for aluminum alloys More
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Published: 30 April 2024
Fig. 9.20 ISO process audit sheet for entire heat-treating plant operation. Source: Ref 1 More
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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440085
EISBN: 978-1-62708-262-4
... Abstract The temperature and atmosphere conditions must be precisely controlled in order to achieve the desired metallurgical results during heat treating operations. In order to ensure the repeatability of operation, a heat treating system must have the necessary sensors, timers, and variable...
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Published: 01 November 2007
Fig. 15.7 Intergranular attack of a Ni-Cr-Fe alloy coupon welded to a heat treat basket after service for 1 month in a heat treat operation cycling between a molten KCl bath at 870 °C (1600 °F) and a quenching salt bath of molten sodium nitrate-nitrite at 430 °C (800 °F). Source: Ref 13 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320017
EISBN: 978-1-62708-347-8
... steel GEAR HEAT TREATING operations consist of subjecting the gears to a definite time-temperature cycle as for any steel, which may be divided into three parts: heating, holding at temperature (soaking), and cooling. Individual cases vary, but certain fundamental objectives need to be stated...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2024
DOI: 10.31399/asm.tb.phtpp.t59380223
EISBN: 978-1-62708-456-7
... Abstract This article presents a simple cost/pricing system that is reasonably accurate and could easily be recalculated if the yearly cost of any of the basic cost components change. Using the example of a commercial heat treating facility, the operational details are categorized as atmosphere...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440055
EISBN: 978-1-62708-262-4
... radiation heating vacuum furnaces HEAT TREATING FURNACES and related equipment include the heating devices (furnaces), fixtures and/or holding devices, quenching systems, and atmosphere and temperature control systems—all of which are required for the majority of heat treating operations. Specialized...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2024
DOI: 10.31399/asm.tb.phtpp.t59380001
EISBN: 978-1-62708-456-7
... control in heat treating is of paramount importance to maintaining quality and achieving the desired metallurgical results. In a typical heat-treating operation, work is moved into a furnace, heated according to a time-temperature program, cooled or quenched, and finally moved out of the furnace or quench...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440283
EISBN: 978-1-62708-262-4
... control limits (UCL) and lower control limits (LCL) can be established based on the appropriate statistical formulas. Reference Reference 1. Dossett J.L. , Baker G.M. , Brown T.D. , and McCurdy D.W. , Statistical Process Control of Heat-Treating Operations , Heat Treating...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2024
DOI: 10.31399/asm.tb.phtpp.t59380017
EISBN: 978-1-62708-456-7
... treating operate in a range between 675 and 855 °C (1250 and 1750 °F). Low-temperature furnaces range from 105 to 675 °C (225 to 1250 °F). Occasionally, heat treating companies will refer to equipment with operating temperature ranges of 105 to 205 °C (225 to 400 °F) as ovens rather than furnaces...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220001
EISBN: 978-1-62708-341-6
... such as heading. Heat Treating Induction heating is used in surface and through hardening, tempering, and annealing of steels. A primary advantage is the ability to control the area that is heat treated. Induction hardening, the most common induction heat treating operation, improves the strength, wear...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080423
EISBN: 978-1-62708-304-1
... behavior of alloys in molten aluminum, zinc, lead, lithium, sodium, magnesium, mercury, cadmium, tin, antimony, and bismuth. It also discusses the problem of liquid metal embrittlement, explaining how it is caused by low-melting-point metals during brazing, welding, and heat treating operations...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250155
EISBN: 978-1-62708-345-4
... for hardness above the machining limit are first cut to semifinish dimensions and then through hardened. In case of some minor heat treat distortion, a finishing operation such as lapping or grinding is very often used to improve the quality of these gears—American Gear Manufacturers Association (AGMA) class...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2024
DOI: 10.31399/asm.tb.phtpp.t59380185
EISBN: 978-1-62708-456-7
... system are included in this chapter. Note that the procedures shown in this chapter are from an actual heat treating operation and are meant only as guidelines; always refer to the equipment manufacturer’s manual and follow those directions precisely. The work instructions included in this chapter...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280203
EISBN: 978-1-62708-267-9
..., and scale resulting from hot working or heat treating operations must also be removed. Some contaminants such as lower-melting metals can cause severe surface attack and reduce a component to scrap. Surface finishing may be necessary to improve component performance; however, many finishing operations...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440159
EISBN: 978-1-62708-262-4
... be used for several types of heat treating operations such as normalizing, annealing, heating for hardening, tempering, and heating of nonferrous metals. Additionally, this method of heating can also be used for melting, preheating for forging, and welding and brazing. The use of induction heating...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320021
EISBN: 978-1-62708-347-8
... dimensions and then through hardened. In case of some minor heat treat distortion, a finishing operation such as lapping or grinding is very often used to improve the quality of these gears (AGMA class 10 and above); for quality up to class 9, gears are finished cut at least one AGMA class above...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060197
EISBN: 978-1-62708-261-7
... Abstract This chapter discusses the types, methods, and advantages of heat treating procedures, including annealing, normalizing, tempering, and case hardening. It describes the iron-carbon system, the formation of equilibrium and metastable phases, and the effect of alloy elements...