Zobrazeno 1 - 10
of 49
pro vyhledávání: '"M. Mazar Atabaki"'
Publikováno v:
Advances in Manufacturing. 6:176-188
In this investigation, hybrid laser/arc welding (HLAW) was employed to join 8-mm-thick high-strength quenched and tempered steel (HSQTS) plates in the butt- and T-joint configurations. The influences of welding parameters, such as laser power, weldin
Publikováno v:
Materials & Design, Vol 127, Iss, Pp 287-296 (2017)
Decreasing the surface roughness of visible laser welds on aluminum automotive closure panels is of critical importance in the automotive industry. During welding, surface roughness is strongly influenced by the interaction of filler wire, laser, and
Publikováno v:
Optics & Laser Technology. 83:1-12
In this investigation, two laser-based welding techniques, autogenous laser welding (ALW) and laser welding assisted with a cold wire (LWACW), were applied to join thick plates of a structural steel (A36) in a horizontal narrow gap butt joint configu
Publikováno v:
Optik. 127:6782-6804
Partial penetration autogenous-laser welding of an aluminum alloy ( AA 5083-H32 ) is studied. The formation of porosity and its mitigation during the autogenous-laser welding of the aluminum alloy in a thick butt-joint configuration were investigated
Autor:
Wei Liu, Unnikrishnan Vasudevan, Radovan Kovacevic, M. Mazar Atabaki, Junjie Ma, Biju Kumar, Raju Pillai
Publikováno v:
Optics & Laser Technology. 82:38-52
Laser-based welding of thick 17-4 precipitation hardening (PH) martensitic stainless steel (SS) plates in a tubular butt joint configuration with a built-in backing bar is very challenging because the porosity and cracks are easily generated in the w
Autor:
Mohsen Zahiri, M. Mazar Atabaki, Radovan Kovacevic, S. M. Kelly, Mahdi Jamshidinia, Alber A. Sadek
Publikováno v:
Journal of Materials Processing Technology. 226:264-271
Unidirectional heat transfer during additive manufacturing (AM) processes results in anisotropy of microstructure and mechanical properties in fabricated components. In the present study, the influence of in-situ printed heat sinks on the microstruct
Publikováno v:
Materials & Design. 75:120-135
The present investigation is related to the development of the welding procedure of the hybrid laser/arc welding (HLAW) in joining thick dissimilar materials. The HLAW was applied to join aluminum alloy (AA6061) to an advanced high strength steel (AH
Publikováno v:
Materials & Design. 68:146-157
Joining steel plates and aluminium plates by means of using Fe/Al structural (Triclad) transition joints has been well-received in the shipbuilding industry, but is rarely applied in other industries. In this work, 12.7 mm thick plates of advanced hi
Autor:
Raju Pillai, Wei Liu, Harold A. Sreshta, Biju Kumar, Radovan Kovacevic, M. Mazar Atabaki, Junjie Ma, Unnikrishnan Vasudevan
Publikováno v:
Lasers in Manufacturing and Materials Processing. 2:74-90
PH stainless steel has wide applications in severe working conditions due to its combination of good corrosion resistance and high strength. The weldability of 17-4 PH stainless steel is challenging. In this work, hybrid laser-arc welding was develop
Publikováno v:
Materials & Design. 67:509-521
The possible mechanisms of the pores formation and their mitigation during the hybrid laser/arc welding (HLAW) of Advanced High Strength Steel (AHSS) were investigated. Influence of three variables (stand-off distance between the laser and the arc of