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lasing gas

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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
... system, purity level, and flow rates of lasing and assist gases is also provided. The article also describes the metallurgies and other key material considerations that impact laser-cutting performances and includes examples of laser cutting of nonmetal materials. assist gas cutting speed...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006545
EISBN: 978-1-62708-290-7
..., plasma arc welding; GTAW, gas tungsten arc welding; GMAW, gas metal arc welding. Based on data from Ref 19 Fig. 6 A laser consists of a lasing medium with a gain coefficient (γ) greater than 1 enclosed within an optical resonator. The optical resonator consists of a pair of mirrors. One...
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
... on helium and neon were developed at Bell Labs and were capable of being scaled to high powers due to easier heat management of the gas lasing medium ( Ref 16 ). In 1962, semiconducting laser diodes were also developed at Bell Labs, further demonstrating the wide range of media capable of generating laser...
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
... to 6.5 mm (0.25 in.) thick. Fig. 3 shows the typical design theory of a slow axial flow laser. The lasing action occurs by injecting laser gas at a pressure of approximately 2.7 kPa (20 torr) into an evacuated glass tube. The tube has a rear mirror and an output coupler at either end. A high-voltage...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003194
EISBN: 978-1-62708-199-3
... techniques; etching; demasking; cleaning. Two processes involved: chemical milling, chemical blanking Fine abrasive particles carried in a high velocity gas stream are used to machine and grind materials Equipment Chemical milling: Large or small, thick parts; masking facilities, corrosion resistant...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003049
EISBN: 978-1-62708-200-6
... nozzles, heat exchanger heating elements, non-iron metallurgy insulating parts, thermal barrier coatings Mechanical Long-term, high-temperature resistance, fatigue, thermal shock, wear resistance Wear parts; sealings; bearings; cutting tools; engine, motor and gas turbine parts; thermal barrier...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.9781627081740
EISBN: 978-1-62708-174-0
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
... welding, and gas-tungsten arc welding and examines the metallurgy of low-gravity welds. Steps taken to ensure the continued development of welding technology in space are also discussed. References 1. McKannan E.C. and Poorman R.M. , Paper 35812, George C. Marshall Space Flight...
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
... wavelength, while CO 2 lasers have a wavelength of 10.6 µm. Solid-state lasers use a solid as the lasing medium as opposed to gas. These solids are often doped with rare earth elements and include Nd:YAG and Yb:YAG as examples. The higher-wavelength light of CO 2 lasers will absorb into a fiber optic cable...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006421
EISBN: 978-1-62708-192-4
.... , Laser Surface Treatment of Metals , Vol 115 , Springer Science & Business Media , 2012 . 73. Chandler H. , Heat Treater’s Guide , ASM Intl. , 1995 74. Chen Y. , Calka A. , et al. , Nitriding Reactions of Ti-Al System Induced by Ball Milling in Ammonia Gas , Mat...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006365
EISBN: 978-1-62708-192-4
.... and Etsion I. , Analysis of the Hydrodynamic Effects in a Surface Textured Circumferential Gas Seal , Tribol. Trans. , Vol 44 , 2001 , p 472 – 478 10.1080/10402000108982483 127. Ronen A. , Etsion I. , and Kligerman Y. , Friction-Reducing Surface Texturing in Reciprocating...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005680
EISBN: 978-1-62708-198-6
... by the manipulation of lasing hardware (fiber optic, output coupling optics) and welding parameters (weld time, focusing distance). When combined with different welding times, the material may interact with the laser differently. Figure 10 shows the range of physical behavior expected to result as a function...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001294
EISBN: 978-1-62708-170-2
... at the target surface. Many different laser wavelengths have been successfully used. The excimer is the most commonly used laser because of its high peak power (> 40 MW) in the ultraviolet and ease of operation. In an excimer laser, the lasing medium is a rare gas/halogen mixture. A summary of rare gas...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005631
EISBN: 978-1-62708-174-0
... joints kissing welds lap joints laser beam weld design laser beam weld joints laser weld quality laser welding quality assessment wire joints MOST WELD JOINT GEOMETRIES used in conventional fusion welding processes (for example, autogenous automatic gas tungsten arc welding or electron beam...
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
... Interactions During Laser Cutting,” presented at Laser Processing: Fundamentals, Applications, and Systems Engineering, 1986 , Vol 0668 , p 53 – 63 10.1117/12.938884 34. Man H.C. , Duan J. , and Yue T.M. , Dynamic Characteristics of Gas Jets from Subsonic and Supersonic Nozzles...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005808
EISBN: 978-1-62708-165-8
...), laser beam emission ranges from ultraviolet to infrared wavelengths (191 to 10,600 nm). Depending on the active medium used and its physical characteristics, industrial lasers are classified by the type of active medium: solid state, gas, and liquid ( Table 2 , Ref 2 ). Lasers are used in several...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003067
EISBN: 978-1-62708-200-6
... that the thermal resistance of single glazing, R1, can be increased to R4 by the addition of a second layer of glass with a transparent low emissivity coating and an insulating gas such as argon in the cavity. Multiple layers and coatings can give R8 performance or even higher. Half of the potential solar heat...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003005
EISBN: 978-1-62708-200-6
... ∼8) 2 to 19 (average ∼4) 1 to 2 Melting points Low (Ga=29.78 °C, or 85.6 °F) to high (W = 3410 °C, or 6170 °F) High (up to 4000 °C, or 7230 °F) Low Hardness Medium High Low Machinability Good Poor Good Tensile strength, MPa (ksi) Up to 2500 (360) Up to 400 (58) Up to 140 (20...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.9781627082006
EISBN: 978-1-62708-200-6
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.9781627081993
EISBN: 978-1-62708-199-3