METALLURGICAL ASPECTS OF WELDABILITY OF MULTIPHASE STEELS FOR AUTOMOTIVE INDUSTRY [PDF]
Applied Engineering Letters, 2017 This paper presents some of technical aspects of the twin-spot laser welding of multiphase steels for automotive industry. The dual beam was obtained using a special optical system that divides a laser beam.
M.Morawiec, A.Grajcar
doaj
Invited Article: CO_2 laser production of fused silica fibers for use in interferometric gravitational wave detector mirror suspensions [PDF]
, 2011 In 2000 the first mirror suspensions to use a quasi-monolithic final stage were installed at the GEO600 detector site outside Hannover, pioneering the use of fused silica suspension fibers in long baseline interferometric detectors to reduce suspension ...
Barton, M. A. +19 more
core +2 more sources
Acoustic process monitoring in laser beam welding
Procedia CIRP, 2020 Abstract Structure-borne acoustic emission (AE) measurement shows major advantages regarding quality assurance and process control in industrial applications. In this paper, laser beam welding of steel and aluminum was carried out under varying process parameters (welding speed, focal position) in order to provide data by means of structure-borne AE ...
Schmidt, Leander +9 more
openaire +1 more source
Effect of high-pressure rolling followed by laser processing on mechanical properties, microstructure and residual stress distribution in multi-pass welds of 304L stainless steel [PDF]
, 2016 Multi-pass fusion welding by a filler material (wire) is normally carried out to join thick steel sections used in most engineering applications. Multiple thermal cycles from a multi-pass weld resulted in a variable distribution of residual stress field ...
Ganguly, Supriyo +3 more
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Archives of Metallurgy and Materials, 2015 Autogenous laser welding of 0.8 mm thick butt joints of car body electro-galvanized steel sheet DC04 was investigated. The Yb:YAG disk laser TruDisk 3302 with the beam spot diameter of 200 μm was used.
Lisiecki A. +6 more
doaj +1 more source
Laser Beam Welding of CubeSat 1U Structure Parts Obtained by Powder Bed Fusion
Metals, 2022 This study contributes to a possible methodology for manufacturing CubeSats using additive manufacturing and laser beam welding. Titanium connectors were constructed by selective laser melting and electron beam melting and characterized from a ...
Rafael Humberto Mota de Siqueira +2 more
doaj +1 more source
Microstructural and Corrosion Properties of Cold Rolled Laser Welded UNS S32750 Duplex Stainless Steel [PDF]
, 2018 The main goal of this work was to study the effect of plastic deformation on weldability of duplex stainless steel (DSS). It is well known that plastic deformation prior to thermal cycles can enhance secondary phase precipitation in DSS which can lead to
B\uf6gre, Balint +5 more
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Adaptive optics for control of the laser welding process
EPJ Web of Conferences, 2013 The laser head with fixed focus optics is commonly used for the deep penetration laser welding. In such case the geometry and position of the beam waist are defined by the focusing lens.
Jedlička Petr +3 more
doaj +1 more source
Grain refinement and laser energy distribution during laser oscillating welding of Invar alloy
Materials & Design, 2020 Laser oscillating welding method was employed to welding of Invar alloy so as to achieve grain refinement and decrease internal defects. Effects of frequency and amplitude of beam oscillation with sinusoidal trajectory on weld appearance and ...
Zhenguo Jiang +6 more
doaj +1 more source
Possible explanations for different surface quality in laser cutting with 1 micron and 10 microns beams [PDF]
, 2012 In laser cutting of thick steel sheets, quality difference is observed between cut surfaces obtained with 1 micron and 10 micron laser beams. This paper investigates physical mechanisms for this interesting and important problem of the wavelength ...
Golubev V. S. +10 more
core +6 more sources