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secondary operations

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000167
EISBN: 978-1-62708-312-6
... Abstract This chapter describes secondary processes employed in the production of powder-metal stainless steel parts, including various machining operations, welding, brazing, sinter bonding, resin impregnation, re-pressing and sizing, and surface finishing. It also discusses the factors...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740373
EISBN: 978-1-62708-308-9
... mechanical, chemical, electrochemical, and atomizing processes used in powder production, discusses powder treatments, and describes consolidation techniques along with secondary operations used to obtain special properties or improve dimensional precision. It also discusses common defects such as ejection...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250139
EISBN: 978-1-62708-345-4
... 0.05 mm + 0.001 x diameter Parallelism 0.025 mm + 0.001 x diameter Outside diameter 0.10 mm + 0.002 x diameter Profile tolerance 0.008 mm Tolerances with single press and sinter without secondary operations. Source: Ref 3 Minimum tolerance capabilities for bevel P/M gears...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400161
EISBN: 978-1-62708-316-4
... and reduced scrap rate Reduce impact speed and noise Improve edge quality in blanking and shearing and increase tool life Reduce springback and improve part dimensions by controlling the dwell time at the BDC (bottom dead center) of the slide stroke Allow assembly and other secondary operations...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430409
EISBN: 978-1-62708-253-2
... life assessment secondary superheater tube 8.1 Introduction A large number of coal-fired power plants are currently in operation worldwide and some are older than 30 years. One of the global problems faced by the power sector is the aging of its power plants, including aging of high-pressure...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550223
EISBN: 978-1-62708-307-2
... Abstract Titanium is a lightweight metal used in a growing number of applications for its strength, toughness, stiffness, corrosion resistance, biocompatibility, and high-temperature operating characteristics. This chapter discusses the applications, metallurgy, properties, compositions...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480225
EISBN: 978-1-62708-318-8
... Abstract This chapter discusses the equipment and processes used to convert titanium billet and bar into useful shapes or more refined product forms. These secondary working operations include open-die, closed-die, hot-die and isothermal forging as well as ring rolling and extruding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270138
EISBN: 978-1-62708-301-0
...: 10.31399/asm.tb.faesmch.t51270138 www.asminternational.org CASE 31 Failure of a High-Pressure Turbine Blade in an Aircraft Engine Summary Discussion A nimonic alloy turbine blade failed in service within 5 hours Striations and secondary ssures in zone 2 are typical of high- of total operation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220027
EISBN: 978-1-62708-341-6
... is low, the current drops rapidly as the operating frequency varies from the resonant frequency. Fig. 3.4 Current amplitude as a function of frequency for an ac series LCR circuit whose components have the values indicated. From D. Halliday and R. Resnick, Physics , Wiley, New York, 1966 ( Ref 3...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000185
EISBN: 978-1-62708-312-6
... Characteristics of various grades of powder metallurgy (PM) stainless steels Designation Description Characteristics 303L Free-machining austenitic grade Designed for parts that require extensive secondary machining operations. It has high strength and hardness. This alloy has marginal corrosion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780047
EISBN: 978-1-62708-268-6
... failure as a basic failure event (a circle) going into the OR gate. The failure analysis team should also search for other secondary events, environmental conditions, or human errors that can induce the command event. This search for secondary events, environmental conditions, and operator error...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2023
DOI: 10.31399/asm.tb.ceeg.t59370145
EISBN: 978-1-62708-447-5
... sows and ingots. Die casting and some gravity permanent operations use secondary metal, where the iron content in the remelted alloys is higher (compared to primary metal). Primary metal —produced with low iron content and low impurities and produced as T-bars or ingots by primary smelters...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220047
EISBN: 978-1-62708-341-6
... or balanced three-phase systems, generally with low-voltage work coils that operate from the secondary of an isolation transformer. Depending on power requirements, systems of this type can be operated with standard line voltages of 220 or 440. When high powers are required, transformer primaries should...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220009
EISBN: 978-1-62708-259-4
... to other equipment prepared to receive and process liquid steel. These are called secondary metallurgy operations. Particularly important was the development of “ladle furnaces” that could receive liquid steel from the primary processes and perform the refining operations, freeing the primary furnaces...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.tb.atia.t59340165
EISBN: 978-1-62708-427-7
... eliminate secondary operations, reducing cost compared with welded parts. Eliminating the need to weld saves labor, scrap, inspection, and rework costs. Welded regions of a structure may contain porosity and heat-affected zones are often a metallurgical weak link in a part. Welding cannot increase strength...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110413
EISBN: 978-1-62708-247-1
... system is also required. Figure 1 Block diagram of an SEM. The SEM operates by scanning a finely focused electron beam across a sample surface in a raster pattern. Secondary electrons emitted from the sample surface are collected and amplified, and this signal is then used to modulate...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270175
EISBN: 978-1-62708-301-0
... concluded that cavitation erosion damaged the plungers, causing them to seize. cavitation erosion energy-dispersive X-ray spectrophotometry hydraulic pumps plungers scanning electron microscopy Summary Failure of hydraulic pumps fitted in an aircraft was reported from some of the operating...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780383
EISBN: 978-1-62708-281-5
... a low-pressure microscope. Source: Ref 1 If even greater capability to image nonconductive samples is desired, an environmental SEM can be purchased. This type of SEM operates at vacuum levels of 20 torr and allows both backscattered and secondary images to be obtained from the sample surface...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500301
EISBN: 978-1-62708-317-1
... Abstract This chapter discusses the types of sensors used in sheet forming operations and the information they provide. It explains how force sensors protect equipment from overloads due to tool wear, friction, and misfeeds, how displacement and proximity sensors help to prevent die crashes...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720139
EISBN: 978-1-62708-305-8
... spot on the sample surface. This spot can be rastered across an operator defined area of the surface or stopped and moved to a particular location of interest. The beam penetrates the sample and interacts with the atoms in the first ~1 μm, exciting atoms and producing secondary electrons, exactly like...