1-20 of 232 Search Results for

laser beam surface modification

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003681
EISBN: 978-1-62708-182-5
... approach to promote corrosion resistance. surface composition ion implantation rapid melt quenching corrosion resistance energy beams high-power laser melting surface modification SURFACE MODIFICATION, in the context of this article, is the alteration of surface composition or structure...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002168
EISBN: 978-1-62708-188-7
... of surface treatment: heat treating, cladding, surfacing, glazing, and marking. carbon dioxide lasers cladding glazing heat treating laser beam machining laser cutting monochromatic light neodymium-doped yttrium aluminum garnet lasers neodymium-glass lasers percussion drilling surface...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005707
EISBN: 978-1-62708-171-9
... gas also aids in the rapid quenching necessary for the hardening process. Laser Heating When component distortion due to overheating is a concern, solid-state transformation hardening by lasers can be employed. The laser beam interacts with the surface of a material to a depth dependent...
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
.... To understand various surface modification techniques using laser, knowledge about material response to the laser beam is essential. Thermophysical properties and type of laser used play a key role. Fundamentals of laser materials interaction are discussed in the following section. Laser Materials Interaction...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005771
EISBN: 978-1-62708-165-8
..., nitriding, carbonitriding, and austenitic and ferritic nitrocarburizing, as well as selective-hardening methods, such as laser transformation hardening, electron beam hardening, ion implantation, selective carburizing, and surface hardening with arc lamps. The article also discusses the factors affecting...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001311
EISBN: 978-1-62708-170-2
... behavior. Europium, which is one of the less soluble elements in titanium, was shown to produce significant inhibition to oxidation at 600 °C, where the presence of ternary oxides was a prerequisite for a strong inhibitive effect. Laser and Electron Beam Treatment Energy beam surface treatment...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005632
EISBN: 978-1-62708-174-0
.... Laser cladding has evolved from weld-metal deposition processes relying on the modification of an existing substrate surface or base component. Laser near-net shape processing has evolved from laser cladding or rapid prototyping technology of nonmetals to create complex parts or features without...
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
...Abstract Abstract Laser surface hardening is a noncontact process that provides a chemically inert and clean environment as well as flexible integration with operating systems. This article provides a brief discussion on the various conventional surface-modification techniques to enhance...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006570
EISBN: 978-1-62708-290-7
... to about 3.5 μm Ra. A laser beam is used to selectively melt or sinter metallic powders or metallic wires in additive manufacturing. A laser with controlled parameters can also be used for surface micromachining or polishing. Inert gas should be used to minimize surface oxidation of the workpiece...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005639
EISBN: 978-1-62708-174-0
...-tension-driven forces (Marangoni flow), and the reaction force from rapid evaporation (Newton's second law). Clearly, shielding-gas-driven viscous aerodynamic surface drag does not apply in the vacuum of an electron beam chamber, and because laser shielding gas flow is not driven by an arc plasma jet...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005130
EISBN: 978-1-62708-186-3
..., and to do it as rapidly as possible will generate the maximum amount of bending for each thermal scan ( Ref 9 ). With a laser beam, this refers to the laser power, beam spot size, rate of travel over the workpiece surface, and the efficacy of the coupling medium on the surface. For plasma forming...
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
... in space and low-gravity environments and describes the unique aspects of the space environment. It compares the applicable welding processes, namely, electron-beam welding, laser-beam welding, and gas-tungsten arc welding and examines the metallurgy of low-gravity welds. Steps taken to ensure...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006436
EISBN: 978-1-62708-192-4
...Abstract Abstract This article describes the surface modification treatments used to modify the tribological properties of titanium alloys. These include physical vapor deposition and thermochemical conversion treatments. The physical vapor deposition includes ion implantation, sputtering...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006460
EISBN: 978-1-62708-190-0
... broad independence regarding part shape and orientation of the part surface relative to the laser beam. The fact that ultrasound is emitted by the part itself, however, has the drawback that too high laser power or energy could cause undesirable damage. Also, transduction efficiency could be highly...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001421
EISBN: 978-1-62708-173-3
.... This article provides a detailed discussion on weldability and the effect of viscosity, chemical reactions, and solidification on weldability. It discusses different welding processes, namely, gas-tungsten arc welding, gas-metal arc welding, laser-beam welding, electron-beam welding, resistance welding...
Series: ASM Handbook
Volume: 23A
Publisher: ASM International
Published: 12 September 2022
DOI: 10.31399/asm.hb.v23A.a0006859
EISBN: 978-1-62708-392-8
...Abstract Abstract Powder-bed fusion (PBF) is a group of additive manufacturing (AM) processes that includes selective laser sintering, selective laser melting, and electron beam melting. This article explains the processes and parameters of PBF systems that are used for biomedical applications...
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
..., and shock-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...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005579
EISBN: 978-1-62708-174-0
... transport on arc plasma and weld pool are discussed. The article reviews the strategies for controlling poor and variable penetration and describes the formation of keyhole and fluid flow in electron beam and laser welds. It also explains the fluid flow in gas metal arc welding and submerged arc welding...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006549
EISBN: 978-1-62708-290-7
... Computer-controlled system used to manage and synchronize the various components and processing parameters in an automated fashion Heat Sources Directed-energy deposition uses several heat sources to melt and deposit material, the most prevalent being laser beams, electron beams, and electric arcs...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001334
EISBN: 978-1-62708-173-3
... doped with sulfur and selenium. Source: Ref 7 The surface-tension-driven fluid flow model should be applicable to non-arc processes, provided the energy input distribution is similar to a GTA arc. This condition is satisfied for conduction-mode electron beam and laser welds. Dramatic increases...