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gas lasers

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Published: 01 January 1993
Fig. 6 Types of electric excitation discharge gas lasers and the practical limits of the output power per cavity length. Courtesy of Trumpf Laser More
Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005106
EISBN: 978-1-62708-186-3
... Abstract Cutting with lasers is accomplished with carbon dioxide (CO 2 ) and neodymium: yttrium-aluminum-garnet (Nd:YAG) lasers. This article provides a description of the process variables and principles of laser cutting. It discusses the three basic types of CO 2 gas lasers, namely, slow...
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Published: 01 January 1994
Fig. 7 Influence of gas mixture on hardness profile for laser gas nitrided Ti-6Al-4V, 6.6 × 10 4 W/cm −2 , 1 m/min −1 , 75% track overlap. Source: Ref 15 More
Image
Published: 01 January 1993
Fig. 9 Microstructures of laser-beam-welded austenitic stainless steels. (a) Gas-tungsten arc weld shown on left, with CO 2 laser-beam weld shown on right, in alloy of Cr eq /Ni eq = 1.8. Laser-beam weld on right is single-phase austenite formed as a product of massive transformation. (b More
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Published: 30 November 2018
Fig. 13 Welding head for hybrid laser/metal inert gas welding. Courtesy of Fronius More
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Published: 31 October 2011
Fig. 18 Hybrid laser gas metal arc welding cross section. Courtesy of Edison Welding Institute More
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Published: 01 December 1998
Fig. 18 Schematic of laser beam cutting with a gas jet More
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Published: 31 December 2017
Fig. 6 Dry gas seals with laser-grooved rings More
Image
Published: 01 November 1995
Fig. 14 Gas-assisted laser cutting More
Image
Published: 01 November 1995
Fig. 16 Gas-assisted laser cutting of holes in 19 mm (0.75 in.) thick birch plywood with fixed cutting head, using trepanning technique. The nozzle, which appears to be touching the workpiece, is actually 1 mm (0.04 in.) above it. More
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Published: 01 January 1989
Fig. 1 Schematic of laser beam cutting with a gas jet More
Image
Published: 01 January 1994
Fig. 6 Influence of feed rate on hardness profile for laser gas nitrided Ti-6Al-4V, 6.6 × 10 4 W/cm −2 , 40:60 N2:Ar, 75% track overlap. Source: Ref 15 More
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Published: 31 October 2011
Fig. 13 Influence of oxygen assist gas purity on laser-cutting speed for CO 2 laser and fiber laser cutting of mild steel. Source: Air Liquide-CTAS Cutting and Welding R&D Laboratory More
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Published: 31 October 2011
Fig. 16 Influence of gas pressure set-up on laser-cutting performance. (a) O 2 assist gas with mild steel. (b) N 2 assist gas with stainless steel. Courtesy of Air Liquide-CTAS Cutting and Welding R&D Laboratory More
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005627
EISBN: 978-1-62708-174-0
... was a solid-state flash-lamp-pumped synthetic ruby crystal laser that operated in a pulsed mode at 0.694 μm (27 μin.) wavelength, was developed in 1960 by Theodore Maiman at Hughes Research Laboratories ( Ref 16 ). Shortly afterward, gas lasers based on helium and neon were developed at Bell Labs and were...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006502
EISBN: 978-1-62708-207-5
..., absorptivity, traverse speed, laser welding efficiency, and plasma suppression and shielding gas. The article concludes with a discussion on laser cutting, laser roll welding, and hybrid laser welding. aluminum alloys laser beam welding porosity laser cutting laser roll welding hybrid laser welding...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006532
EISBN: 978-1-62708-207-5
... intensity distribution Types of Lasers Lasers are mainly divided into four types based on the medium in which they are used: solid-state lasers, gas lasers, semiconductor lasers, and dye lasers. For laser-assisted machining, mainly Nd:YAG (a solid-state laser) and CO 2 gas lasers are used...
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
... of the HLAW and describes the major components and consumables used for HLAW. The components include the laser source, gas metal arc welding source, hybrid welding head, and motion system. The article also describes the typical sources of defects and safety concerns of HLAW. arc welding defects sources...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005618
EISBN: 978-1-62708-174-0
...-peening processes of which emphasis is placed on thermal laser cutting. It details the principal set-up parameters, such as the laser beam output, nozzle design, focusing optic position and characteristics, assist gases, surface conditions, and cutting speed. A discussion on the types of gas, supply...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001370
EISBN: 978-1-62708-173-3
... Deep penetration (a) Gas-tungsten arc welding (GTAW). (b) Gas-metal arc welding (GMAW). (c) Submerged arc welding (SAW) Advantages and Limitations of LBW Laser welding offers the following advantages ( Ref 1 , 2 ): Light is inertialess (hence, high processing speeds...