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laser welding

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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 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, and thermit...
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
... drastically reduced, as in laser welding. The high thermal expansion of austenitic stainless steel can cause high residual stress around welds, which may require annealing to eliminate. Another serious threat posed by thermal stresses is hot cracking. This can occur to material that has just solidified...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290061
EISBN: 978-1-62708-306-5
..., and laser welding, are: Gas-tight or liquid-tight joints can be produced (not possible with spot welding or projection welding). Seam width may be less than the diameter of spot welds, because the electrode contour can be continuously dressed and is therefore of a stable shape. High-speed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290099
EISBN: 978-1-62708-306-5
... densities that are of the order of 1000 W/cm 2 , such as oxyacetylene flames or electroslag welding, require interaction times of 25 s with steel, whereas laser and electron beams, at 1 MW/cm 2 , need interaction times on the order of only 25 μs. Welders often begin their training with the oxyacetylene...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560309
EISBN: 978-1-62708-291-4
... Abstract This chapter examines the effects of welding on the structure of metal, particularly the changes induced in the isothermal regions adjacent to the weld. It presents more than 150 images identifying structures and features associated with fusion and solid-state welding processes...
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
... the same family (e.g., joining one type of stainless steel with another type). Fusion welding methods include arc welding processes, resistance welding processes, and other methods such as oxyfuel welding, electron beam welding, and laser beam welding. Figure 2.1 compares these five process...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500019
EISBN: 978-1-62708-317-1
... contact-free angle measurement method uses laser beams projected on the contour of the sheet being bent. The charge-coupled device cameras, which are positioned at “A” and “B” in Fig. 2.46 , look up diagonally and measure the positions of the laser projection line on both sides of the bent sheet...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280149
EISBN: 978-1-62708-267-9
...) Submerged arc welding (SAW) Plasma arc welding (PAW) Electron beam welding (EBW) Laser beam welding (LBW) Resistance spot welding (RSW) Resistance seam welding (RSEW) Procedures and equipment are generally similar to those used for welding austenitic stainless steel. Electron beam...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120065
EISBN: 978-1-62708-269-3
...) Electron beam welding (EBW) Laser beam welding (LBW) Procedures and equipment are generally similar to those used for welding austenitic stainless steel or aluminum. Because titanium and titanium alloys are extremely reactive above 538 °C (1000 °F), however, additional precautions, ones exceeding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290001
EISBN: 978-1-62708-306-5
... metal arc welding Flux-cored arc welding Gas tungsten arc welding Plasma arc welding Electroslag welding Electrogas welding Resistance welding Flash welding Oxyfuel welding Diffusion welding Friction welding Electron beam welding Laser beam welding Torch brazing...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780141
EISBN: 978-1-62708-268-6
... subtle. This chapter summarizes a few commonly encountered contaminant sources to stimulate the reader's thinking about potential contaminant sources. A case study of titanium component washing at Litton Lasers is presented to illustrate how the presence of contaminants leads to a system failure...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220085
EISBN: 978-1-62708-259-4
... laser scanning microscopes. atom probe tomography atomic force microscopy laser scanning confocal microscopy metallography scanning electron microscopy scanning transmission electron microscopy transmission electron microscopy Although optical microscopy is based on the interaction of...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910363
EISBN: 978-1-62708-250-1
..., and laser processing. The last section focuses on nonmetallic inorganic coatings including ceramic coating materials, conversion coatings, and anodized coatings. corrosion control protective coatings corrosion inhibitors organic coatings metallic coatings nonmetallic inorganic coatings...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410551
EISBN: 978-1-62708-265-5
... stamping, aluminum die casting, and cold forging and extrusion. Laser and electron beams provide very high energy, directed sources of heat, and are used for many surface-modification techniques. Depending on power input, high-energy beams may be used for cutting and welding, surface melting and...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350095
EISBN: 978-1-62708-315-7
... chapter also covers ion implantation and laser alloying. anodizing conversion coating diffusion coating pack cementation SURFACE TREATMENTS that change the surface chemistry of a metal or alloy, but that do not involve intentional buildup or increase in part dimension, include...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740213
EISBN: 978-1-62708-308-9
... processes such as electrical discharge, abrasive jet, and hydrodynamic machining, laser and electron beam machining, ultrasonic impact grinding, and electrical discharge wire cutting. chip formation cutting fluids cutting tools machinability machining tool wear MACHINING COVERS a large...
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 could seriously affect the structural performance of AHSS components. The ASP led a project to study the welding performance of AHSS for auto body structural components. Five fusion welding processes (MIG pulse/ac, MIG pulse/dc, MIG/laser-assisted, laser, and laser plasma) were used to study...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ahsssta.t53700177
EISBN: 978-1-62708-279-2
... their contacting surfaces by the application of heat and/or pressure. Welding processes are divided into two main categories: Fusion welding , such as arc welding, resistance spot welding, oxyfuel gas welding, electron beam welding, and laser beam welding Solid-state welding , such as...
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
... dwell time of 1/60 of a second. In this cases, welding takes place across a projection designed into the component, and because no filler metal is used, there is no concern for dilution effects. Microstructural changes are limited to the weld zone only. Laser welding is also a filler-metal-free welding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080003
EISBN: 978-1-62708-304-1
... hoods in steel mills, and so forth. With automatic controls for gas metal arc welding machines, a large scale of weld overlay can be applied in vessels or boilers with engineering quality. Laser cladding can also be applied in the shop on large equipment such as waterwall panels. Coextruded composite...