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torch construction

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Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005590
EISBN: 978-1-62708-174-0
..., and applications of the process. It describes the equipment used for GTAW, namely, power supplies, torch construction and electrodes, shielding gases, and filler metals as well as the GTAW welding procedures. The article concludes with a review of the safety precautions to avoid possible hazards during the GTAW...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001356
EISBN: 978-1-62708-173-3
.... (a) Thyristor-controlled source. (b) Inverter-controlled source. Faster response of inverter-controlled arc welding machine (2 ms to go from 0 to 100 A) indicates a more stable arc. Torch Construction The welding torch holds the tungsten electrode that conducts the current to the arc, and it provides...
Book Chapter

Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001483
EISBN: 978-1-62708-173-3
.... The operator changes the cutting capacity of the torch by changing the cutting tip size and by resetting pressure regulators and control valves. Because different fuel gases have different combustion and flow characteristics, the construction of cutting tips, and sometimes of mixing chambers, varies according...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001372
EISBN: 978-1-62708-173-3
... of several sizes of welding tips or a cutting attachment to be added. The general construction of an OFW torch is shown schematically in Fig. 3 . The principal operating parts are inlet valves, rear body, handle, and head. A mixing chamber with a welding tip, heating nozzle, or cutting attachment...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005205
EISBN: 978-1-62708-187-0
... within a plasma torch. Most plasma generators (plasma torches) for melting processes use an electric arc to produce gaseous discharges. The characteristics of an electric arc include relatively high current densities, low cathode fall, and high luminosity of the column. A typical potential distribution...
Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005175
EISBN: 978-1-62708-186-3
.... The operator changes the cutting capacity of the torch by changing the cutting tip size and by resetting pressure regulators and control valves. Because different fuel gases have different combustion and flow characteristics, the construction of cutting tips, and sometimes of mixing chambers, varies according...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003208
EISBN: 978-1-62708-199-3
... permit one of several sizes of welding tips or a cutting attachment to be added. The general construction of an OFW torch is shown schematically in Fig. 2 . The principal operating parts are inlet valves, rear body, handle, and head. Fig. 2 Oxyfuel gas welding torch Flame Adjustment...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001484
EISBN: 978-1-62708-173-3
... (electrically conductive) gas to melt and sever metal in a narrow, localized area. Process Description In the PAC process, a cool and inert gas, such as compressed air, is forced under pressure through a small orifice in the front of the cutting torch. This torch is connected by leads to a direct-current...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003179
EISBN: 978-1-62708-199-3
..., gas supply hoses, and a cutting torch with a set of exchangeable cutting tips. Such manually operated equipment is portable and inexpensive. Principles of Operation Oxyfuel gas cutting begins by heating a small area on the surface of the metal to the ignition temperature of 760 to 870 °C (1400...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006830
EISBN: 978-1-62708-329-4
... to the flexibility of the wire rope. The degree of flexibility of a wire rope is determined by its construction. Figure 2 illustrates the component parts of a wire rope. Fig. 2 Components of a steel wire rope. Source: Ref 1 . Created by P. Toone. Courtesy of OSHA DTSEM/SLTC The construction...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001811
EISBN: 978-1-62708-180-1
... sheaves or drums are involved, and they almost always are, the diameter of the sheave or drum has a direct relationship to the flexibility of the wire rope. The degree of flexibility of a wire rope is determined by its construction. Figure 2 illustrates the component parts of a wire rope. Fig. 2...
Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005176
EISBN: 978-1-62708-186-3
... by the intense heat of the arc and then removed by the jetlike gas stream issuing from the torch nozzle. The PAC process relies on heat generated from electrical arcing between the torch electrode and the workpiece. It generates very high temperatures (28,000 °C, or 50,000 °F, compared to 3000 °C, or 5500 °F...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001485
EISBN: 978-1-62708-173-3
..., an air compressor, a carbon electrode, and a gouging torch. Figure 1 shows how the components are typically arranged. Fig. 1 Arrangement of components used in the CAC-A process Cuts or gouges should be made only in the direction of the air flow. The electrode angle will vary, depending...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005130
EISBN: 978-1-62708-186-3
... Abstract This article begins with a discussion on the energy sources used for thermal forming. These include electric induction coil, gas flame, plasma torch, and laser beam. The article discusses the mechanisms of forming and different modes of deformation. It describes the effect of process...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005197
EISBN: 978-1-62708-187-0
... is processed in a variety of ways. It can be cut with a cutting torch, sheared with a large blade shear, shredded in a hammer mill, or bailed into cubes. Each method produces a useable material for cupola melting, but each has its own melting characteristics. Cupolas are erally flexible enough in design...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005600
EISBN: 978-1-62708-174-0
... Other variables, such as base-metal composition, joint design, part fit-up, GMAW torch angle, shielding gas flow rate, laser wavelength, position of the laser focus with respect to the work surface, and preheat temperature, can play important roles in hybrid welding but are variables usually defined...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001452
EISBN: 978-1-62708-173-3
... an emphasis on the selection of suitable filler metal, brazing processes, and its corresponding furnace atmosphere for brazing different grades of stainless steel. The types of brazing processes include torch brazing, furnace brazing in different atmospheres (dissociated ammonia, dry hydrogen, and vacuum...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005759
EISBN: 978-1-62708-171-9
.... There are three main types of enclosures used to contain the process and allow its operator to remain outside its confines. Walk-in Style Booth A walk-in booth consists of an enclosure that surrounds the process, the part, and the gun or torch manipulating equipment in such a manner that the operator need...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005706
EISBN: 978-1-62708-171-9
... is a brief description of thermal spray technology. Thermal Spray Processes Thermal spray processes include flame spray, electric arc spray, plasma arc spray, high-velocity oxyfuel spray, detonation gun deposition, and cold spray ( Ref 1 , Ref 2 ). Coating material is fed to the thermal spray torch...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006515
EISBN: 978-1-62708-207-5
... of the molten weld and support the molten underbead. Torch Construction and Electrodes The welding torch holds the tungsten electrode that conducts the current to the arc, and it provides a means of shielding the arc and molten metal. The major components of a typical welding torch are shown in Fig. 14...