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repair welding

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Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005345
EISBN: 978-1-62708-187-0
...Abstract Abstract Repair welding is a necessary operation for most fabricators and can cost more than the price of the original component if performed improperly. This article provides a discussion on the repair welding of castings for ferrous and nonferrous materials. The discussion focuses...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001476
EISBN: 978-1-62708-173-3
...Abstract Abstract Repair and maintenance of parts and components is carried out as a logical procedure that ensures the production of a usable and safe component or it can be approached haphazardly. This article describes the requirements and repair techniques of arc and oxyfuel welding...
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Published: 01 January 1993
Fig. 16 Use of carbon backing to provide support when repair welding surfaces and contours More
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Published: 01 January 1993
Fig. 6 Repair welding of AZ91C alloy aircraft wheel rim casting Manual GTAW Weld type Surfacing, for repair Welding position Flat Preheat None Shielding gas Helium, 0.6 m 3 /h (20 ft 3 /h) Electrode 2.4 mm ( 3 32 in.) diam EWP Filler metal 3.2 mm ( 1 More
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Published: 01 January 1993
Fig. 7 Repair welding of a cast AZ92A alloy compressor housing Manual GTAW Joint type Butt Weld type 60° double-V-groove repair Shielding gas Argon, 0.6 m 3 /h (20 ft 3 /h) (a) Electrode 1.6 mm ( 1 16 in.) diam EWTh-2 Filler metal 1.6 mm ( 1 16 More
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Published: 30 August 2021
Fig. 39 Macroetched cross section through a failed shaft showing a repair weld overlay around the entire circumference as well as two keyways that had been filled in by welding More
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Published: 31 October 2011
Fig. 23 Sequence of operations required for electron beam welding repair of an air seal. See text for details. More
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Published: 31 August 2017
Fig. 20 Repair of a large crack in a gray iron punch-press frame by gas welding under conditions given in the table ( Example 11 ). Dimensions given in inches. Source: Ref 3 More
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Published: 01 January 1993
Fig. 8 Manual GTAW repair of sand castings Welding condition Example 8 Example 9 Example 10 Conditions for manual GTAW (a) Fixtures None Plates None Welding position Flat Flat Flat Shielding gas Argon; 0.57–0.68 m 3 /h (20–24 ft 3 /h) Argon; 0.68–0.79 m 3 More
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006301
EISBN: 978-1-62708-179-5
...Abstract Abstract This article describes some examples of the different welding processes for gray, ductile, and malleable irons. These processes include fusion welding, repair welding, shielded metal arc welding, gas metal arc welding, flux cored arc welding, gas tungsten arc welding...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001440
EISBN: 978-1-62708-173-3
... discusses the role of filler metals and shielding gases in welding titanium and titanium alloys. It describes the equipment used for gas-tungsten arc welding and concludes with information on repair welds. alpha titanium alloys aluminum austenitic stainless steel electron-beam welding friction...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001439
EISBN: 978-1-62708-173-3
... suitable to arc welding of magnesium alloys. The article describes the repair welding of castings, with examples. It concludes with a discussion on heat treatment of castings after welding. casting gas-metal arc welding gas-tungsten arc welding heat treatment magnesium alloys repair welding...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001373
EISBN: 978-1-62708-173-3
...-carrying capacity and the ability to withstand corrosion, when compared with a mechanical bond. Repair Welding Large-diameter rolls, shafts, ingot molds, and heavy mill housings can be successfully repaired by using the thermite welding process. The metallurgical aspects of the process, when used...
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Published: 01 January 2002
Fig. 6 Overload failure of a bronze worm gear ( example 4 ). (a) An opened crack is shown with a repair weld, a remaining casting flaw, and cracking in the base metal. (b) Electron image of decohesive rupture in the fine-grain weld metal. Scanning electron micrograph. 119×. (c) Morphology More
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Published: 01 January 2002
(region A) that originally joined the flange to the case (region B) and the stiffener (region C). The external repair weld (region D) had only partial fusion with the earlier bead. The arrow shows a film of oxide slag at the interface. Etched with 2% chromic acid plus HCl. 10× More
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Published: 01 August 2018
Fig. 33 Magnetic-particle indications of cracks in a large cast splined coupling. Indication (at arrow) in photo at right is along the fusion zone of a repair weld. More
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001425
EISBN: 978-1-62708-173-3
... for alteration or repair. In many cases it becomes necessary to splice new materials into old. Most of the above materials require special conditioning before repair welding. Solid-Solution Nickel Alloys These materials have good weldability and are often used in the as-welded condition. The alloys...
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
... a positive-pressure welding outfit. The article provides information on forehand welding and backhand welding, as well as various joints used. It concludes with a discussion on repairs and alterations, as well as the safety aspects. acetylene backhand welding filler metal forehand welding hoses...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001465
EISBN: 978-1-62708-173-3
...Abstract Abstract Welding as an assembly process has become increasingly more attractive to designers of space structures because of its sufficient strength, endurance, reliability during their service lives, and ease of repair. This article reviews a variety of applications for welding...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001428
EISBN: 978-1-62708-173-3
..., this level of silicon may result in weld cracking. When welding surface defects that occurred during the casting process, which is a common welding procedure with castings, most welding methods can be used with most of the solid-solution nickel-base alloy castings. Repair Welding The solid-solution...