Results 211 to 220 of about 66,166 (260)
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Proceedings of Fall Meeting of the Society of Petroleum Engineers of AIME, 1971
Introduction A recent study of laser-assisted mechanical rock tunneling, conducted at the United Aircraft Research Laboratories under Department of Transportation sponsorship, had as a goal the investigation of laser-assisted mechanical rock fracture for use in tunneling machines boring in extremely hard rock.
Jeffrey P. Carstens, Clyde O. Brown
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Introduction A recent study of laser-assisted mechanical rock tunneling, conducted at the United Aircraft Research Laboratories under Department of Transportation sponsorship, had as a goal the investigation of laser-assisted mechanical rock fracture for use in tunneling machines boring in extremely hard rock.
Jeffrey P. Carstens, Clyde O. Brown
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Welding in the World, 2004
Laser cutting offers unique possibilities for different production systems. So far the utilisation has been most advanced in cutting of metal products. Lasers have also been used for paper and board cutting in some specific applications. This document, which concentrates on the physical phenomena of laser cutting of birch pulp, is part of a national ...
Hovikorpi, Jari +4 more
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Laser cutting offers unique possibilities for different production systems. So far the utilisation has been most advanced in cutting of metal products. Lasers have also been used for paper and board cutting in some specific applications. This document, which concentrates on the physical phenomena of laser cutting of birch pulp, is part of a national ...
Hovikorpi, Jari +4 more
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Laser Cutting of Reinforced Materials
2021The work is a review of the laser cutting of Fibre Reinforced Plastics: the major parameters determining the cutting results, especially with respect to quality, are discussed and explained.
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Latest developments of laser cutting
ICALEO 2016: 35th International Congress on Applications of Lasers & Electro-Optics, 2016Laser cutting was one of the first applications of laser material processing. Today, laser cutting is the most widespread application among laser material processing besides laser marking. Meanwhile, nearly each material can be cut by means of a laser, in particular since ultra short pulse lasers are available in the power range of up to 100 W.
Wetzig, Andreas +9 more
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Flexible Laser Metal Cutting: An Introduction to the ROBOCUT Laser Cutting Technique
2014This paper describes a new flexible and fast approach to laser cuttingcalled ROBOCUT. Combined with CAD/CAM technology, laser cutting of metalprovides the flexibility to perform one-of-a-kind cutting and hereby realises massproduction of customised products.
Villumsen, Sigurd +2 more
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Cutting Front Formation in Laser Cutting
CIRP Annals, 1989Summary In order to be able to describe and understand the laser cutting process, the cut front has to be investigated in details, which means that the temperature distribution on the melt surface in the cut front, the melt flow pattern, the temperature gradients through the melt and the melt front propagation through the solid material must be ...
Flemming O. Olsen, L. Alting
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Laser glass cutting techniques—A review
Journal of Laser Applications, 2013With the advancement of glass technology in recent times, glass has become one of the most important engineering materials in architectural, medical, automotive, flat panel display, and electronics applications. Desired shape and size of the glass can only be achieved through accurate and precise cutting technique.
Nisar, S., Li, L., Sheikh, M.A.
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Some Considerations On Laser Metal Cutting
SPIE Proceedings, 1989The use of c.w. laser cutting of mild steel and aluminum alloys was already been investigated. As others authors already pointed out, a converse proportion relation between thickness of material subjected to the cutting and speed of travel of the material itself takes place.
Sergi, V, TAGLIAFERRI, VINCENZO
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UV laser cutting of organic nanofibers
SPIE Proceedings, 2005Nanofibers made from organic molecules such as para-hexaphenyl allow guiding of electromagnetic waves. Since they possess nanometric widths and heights but macroscopic lengths they represent the smallest possible optical waveguides. Recently, gain enhancement has been observed, pointing to possible applications as nanolasers.
Balzer, F. +3 more
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2006
AbstractCutting with lasers is accomplished with carbon dioxide (CO2) 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 CO2 gas lasers, namely, slow axial flow, transverse flow, and fast axial flow and reviews the ...
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AbstractCutting with lasers is accomplished with carbon dioxide (CO2) 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 CO2 gas lasers, namely, slow axial flow, transverse flow, and fast axial flow and reviews the ...
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