1-20 of 131 Search Results for

shielding gases

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120065
EISBN: 978-1-62708-269-3
..., and the need for contaminant-free surfaces and atmospheres. It describes common forms of fusion, arc, and solid-state welding along with the use of filler metals, shielding gases, and stress-relief treatments. It also discusses the practice of titanium brazing and the role of filler metals. arc welding...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290023
EISBN: 978-1-62708-306-5
... welding, gas metal arc welding, gas tungsten arc welding, plasma arc welding, plasma-GMAW welding, electroslag welding, and electrogas welding. The basic characteristics of gases used for shielding during arc welding are briefly discussed. electrogas welding electroslag welding flux cored arc...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310201
EISBN: 978-1-62708-286-0
... of 316 and above should not have sulfur above 0.001% for these alloys to deliver the expected corrosion resistance. The austenitic stainless steel weld metal composition can be altered by the gases to which the molten base metal is exposed. Lack of shielding can lead to oxygen combining with chromium...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200369
EISBN: 978-1-62708-354-6
... deposition rate and the high cost of the shielding gases, the process is confined primarily to the stainless foundry, or, in the case of fabrication, to the production of root passes. Fig. 25-2 Elements of the gas tungsten-arc process. If filler metal is required, it is fed into the pool from...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280149
EISBN: 978-1-62708-267-9
...′ -hardened superalloys is that some aluminum and titanium may be lost from the matrix, the volume fraction ( V f ) γ′ will be reduced, and/or distribution of the γ′ phase will be distorted by the joining process. Shielding gases or vacuum are used to protect bonds in most γ′ -hardened superalloys...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930353
EISBN: 978-1-62708-359-1
... alloys are welded in vacuum-purged weld chambers that are backfilled with either argon or helium, or a mixture of the two gases. Tantalum can also be welded in a flush chamber when the parts to be welded cannot be shielded properly for open-air welding. Fluxes cannot be used because they cause weld...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480265
EISBN: 978-1-62708-318-8
... alloys. However, shielding conditions must be provided to prevent contamination. Shielding Argon and helium inert gases are used in PAW of titanium and its alloys to prevent contamination. Flow rates of plasma gas are low and do not shield the puddle adequately. Therefore, supplementary shielding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ahsssta.t53700215
EISBN: 978-1-62708-279-2
... and types of steels. Fig. 14.5 Load-carrying capacity of spot welds of various grades and types of steels. Source: Ref 14.1 Arc welding (GMAW, TIG, and plasma) can be used in a similar way to mild steel including the shield gases. Higher-strength filler wires are recommended for higher...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230401
EISBN: 978-1-62708-298-3
... as a function of temperature is shown in Fig. 23.9 . The hydrogen can originate from a number of sources: filler metal, moisture on the filler wire, beryllium, shielding gases, and greases and lubricants used in the manufacture of the wire or parts to be welded [Barker]. Calculations show that 10 ppm by weight...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310225
EISBN: 978-1-62708-286-0
... compartment, so a heat shield of type 409 is used to separate it from the floor. The center pipe conveys the converted gases to the muffler. The cooling exhaust gases no longer present a major oxidation threat, but the condensing water vapor creates an internal corrosion risk, and road salt presents...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930197
EISBN: 978-1-62708-359-1
... produced in arc welds can be grouped into three types: isolated, linear, and cluster. Isolated porosity is caused by a phenomenon similar to boiling when the arc power is too far above the ideal level. Linear or cluster porosity can result from interaction of components of the shielding gas, such as oxygen...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930249
EISBN: 978-1-62708-359-1
... welding process is manual shielded-metal arc welding (SMAW) with coated electrodes. It has been applied to material as thin as 1.2 mm (0.05 in.), and there is no upper limit on thickness. Other very commonly used processes for stainless steels are GTAW, GMAW, submerged arc welding (SAW), flux-cored arc...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030096
EISBN: 978-1-62708-282-2
... precipitation reactions Shielding molten and hot metal surfaces from reactive gases in the weld environment Removing chromium-enriched oxides and chromium-depleted base metal from thermally discolored (heat tinted) surfaces Choosing the proper welding parameters ( Ref 1 ) Weld Solidification...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080335
EISBN: 978-1-62708-304-1
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060117
EISBN: 978-1-62708-261-7
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870573
EISBN: 978-1-62708-314-0
... developed in the 1950s by the aerospace industry for use as rocket motor casings, heat shields, leading edges, and thermal protection. It should be noted that C-C composites are often treated as a separate material class from other ceramic matrix composites, but their usage and fabrication procedures...
Book Chapter

By L. L. Sparks
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860047
EISBN: 978-1-62708-348-5
... (see Fig. 2.15 ) has been removed from the 5-K experimental point. Figure 2.21 (a) Simple Nernst-type calorimeter. (b) Nernst-type calorimeter with thermal shield (isothermal or adiabatic). (c) Calorimeter with thermal shield and mechanical heat switch, which eliminates the need for exchange...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290079
EISBN: 978-1-62708-306-5
... to the welding torch. The mixed gases then pass through the welding tip and produce the flame at the exit end of the tip. This equipment can be mounted on and operated from a cylinder cart, or it can be a stationary installation. Filler metal, when needed, is provided by a welding rod that is melted...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930057
EISBN: 978-1-62708-359-1
... or excessive wind drafts, which result in oxidation Using improper shielding gases such as argon-oxygen or argon-CO 2 mixtures, which are used for GMAW Tungsten inclusions, which are not acceptable for high-quality work, can only be found by internal inspection techniques, particularly radiographic...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350231
EISBN: 978-1-62708-315-7
... hot, ionized gas issuing from an orifice surrounding the electrode and may be supplemented by an auxiliary source of shielding gas, which may be an inert gas or a mixture of gases. Pressure may or may not be used, and filler metal may or may not be supplied. plasma-assisted chemical vapor deposition...