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Studs

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Published: 01 November 2007
Fig. 16.9 (a) Fractured studs due to cadmium-induced LME during service at 315 °C (600 °F), and (b) optical micrograph showing intergranular cracks at the cross section of a fractured stud. Source: Ref 46 More
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Published: 01 December 2004
Fig. 7 Wedge-test details for studs. D , diameter of stud; C , clearance of wedge hole; R , radius; T , thickness of wedge at short side hole; W , wedge angle More
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Published: 01 November 2011
Fig. 4.6 Common stud configurations for stud arc welding. Source: Ref 4.3 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270180
EISBN: 978-1-62708-301-0
...Abstract Abstract The nose landing gear on an aircraft malfunctioned during landing roll. After the incident, two fractured studs were found in the retraction jack support beam. Based on visual examination and the results of SEM fractography, investigators concluded that the studs failed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290079
EISBN: 978-1-62708-306-5
...Abstract Abstract This chapter discusses the fusion welding processes, namely oxyfuel gas welding, oxyacetylene braze welding, stud welding (stud arc welding and capacitor discharge stud welding), high-frequency welding, electron beam welding, laser beam welding, hybrid laser arc welding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270065
EISBN: 978-1-62708-301-0
...Abstract Abstract An aircraft was heavily damaged when it was forced to land due to a throttle malfunction. Investigators determined that one of the studs linking the throttle to the engine fractured from fatigue, initiated by cracks formed during a riveting procedure. This chapter provides...
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Published: 01 November 2011
Fig. 4.4 Stud arc welding process: (a) gun is properly positioned; (b) trigger is depressed and stud is lifted, creating an arc; (c) arcing period is completed and stud is plunged into molten pool of metal on base material; (d) gun is withdrawn from welded stud and ferrule is removed. Source More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270168
EISBN: 978-1-62708-301-0
... from the dovetail mountings and subjected to further damage. Some of the dovetail mounting regions were also found sheared. The region that had suffered minimum damage was the locking plate region. The two mounting studs were found pulled outward and sheared ( Fig. CH44.9 ), along with the locking...
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Published: 01 November 2011
Fig. 4.3 Typical integrated power/control system for stud arc welding. Source: Ref 4.3 More
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Published: 01 November 2011
Fig. 4.5 Macrosection of low-carbon steel stud weld. Source: Ref 4.3 More
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Published: 01 November 2011
Fig. 4.7 Typical current-versus-time curves for the three capacitor discharge stud welding methods. Source: Ref 4.4 More
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Published: 01 November 2011
Fig. 4.8 Methods used for capacitor discharge (CD) stud welding, (a) initial-gap; (b) initial-contact; (c) drawn-arc. Source: Ref 4.4 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060195
EISBN: 978-1-62708-355-3
... of fasteners and studs can be determined on the ends, wrench flats, or unthreaded shanks after removal of any oxide, decarburization, plating, or other coating material. Rockwell or Vickers hardness standards may be used at the option of the manufacturer. Hardness is determined at midradius of a transverse...
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Published: 01 December 2018
Fig. 6.81 (a) Close-up view at leakage location with leakage in the form of tiny pinholes and smooth outer surface with erosion marks where the studs had worn out. (b) Bent location showing scale deposits. (c) Inner surface view brick red in color indicating absence of protective magnetite scale More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.9781627083010
EISBN: 978-1-62708-301-0
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900163
EISBN: 978-1-62708-350-8
... potentials. Threaded holes must be protected from nitriding. This is accomplished simply by partially inserting a threaded stud into the hole. Screwing three or four threads deep is sufficient ( Fig. 2 ). Fig. 2 Masking of blind tapped holes on a component for plasma nitriding. ...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080423
EISBN: 978-1-62708-304-1
... joints for 304L and alloy 718. Ebert ( Ref 46 ) indicated that cadmium-plated Cr-Mo steel (ASTM A 193 grade B) studs from a steam line connector associated with a power turbine fractured during service at 315 °C (600 °F) by cadmium-induced LME. Figure 16.9(a) shows the fractured studs, and Fig...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900039
EISBN: 978-1-62708-350-8
... Ammonia Leaks Figure 4 shows a nitriding installation that uses a simple seal that fits on the retort flange. Mild steel or stainless steel studs, nuts, and washers secure the sealed top cover. If mild steel fasteners are used, dip the thread into a mixture of oil and flake graphite or molybdenum...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050293
EISBN: 978-1-62708-311-9
.... The examination should include inspection for water leaks from hose connections and signs of discoloration on copper bus, tube connections in oscillator sets, and any signs of oil leaks from capacitors. The studs and taps on any heat station component, such as capacitors or transformers, need to have special...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080359
EISBN: 978-1-62708-304-1
... on the tube surface, thus preventing rapid corrosion of tube metal by the molten salts. With studded carbon steel tubes, a thicker frozen layer is formed ( Ref 10 ). The frozen smelt is not corrosive as long as it remains solid on the tube surface. However, once this frozen smelt layer suffers localized...