Disk Laser Welding of Copper to Stainless Steel

Abstract

The paper concerns with welding of copper to stainless steel. Technically pure Cu and AISI 304 austenitic stainless steel with the thickness of 2.0 mm were suggested as experimental metals. TruDisk 8002 laser with the wavelength of 1.03 μm and a maximum power of 8.0 kW was used for production of dissimilar metal welds. Laser power from the range of 2.3 to 2.9 kW and welding speed from 35 to 50 mm/s were used for welding dissimilar metals. Focal position was direct on the surface of welded metals. Helium with flow rate of 17 l/min was used for shielding of molten weld metal. Light microscopy, EDX microanalysis and micro hardness measurements across copper - fusion zone - stainless steel interface were performed in order to study the properties of the weld joints.

Effect of SMAW process parameters on similar and dissimilar metal welds: An overview

“…This is because of reduced region adjacent of fusion zone and higher solubility within the weld region. The addition of nickel or copper as filler material in TIG welding increases the joint properties due to higher dilution ( Sahul et al., 2015 ). Investigation the effects of wave length, power of circular laser welding on microhardness of ferrous and non ferrous joint.…”

The Joining of Copper to Stainless Steel by Solid-State Welding Processes: A Review

“…The diverse nature of both materials is dominant during fusion welding processes. However, considerable effort has been made to join copper to stainless steel via fusion welding processes [ 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 ]. Overall, it is safe to conclude that the metallurgy of copper to stainless steel joints must be the researcher’s focus when welding them with fusion welding processes.…”