Effect of heat input in deep penetration laser welding of carbon steel

Carlson, K. W.

doi:10.1364/cleo.1986.wj5

Cited by 6 publications

(1 citation statement)

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“…A laser beam is a numerically controlled, fully automated, highspeed system [11][12] formalised paraphrase. Because of the advantages of laser beam welding over traditional welding, the results reveal improved complete penetration welding in thicker sheets [13][14][15][16][17]. The material gap of between 0.2 and 0.3 mm is likewise good in terms of mechanical properties for the wider weld width.…”

Section: Introductionmentioning

confidence: 94%

Using the RSM method of improving process parameters of welding AISI 316 and nickel 201 using CO2 laser

G.¹,

Velmurugan²,

Kannan

2022

Matéria (Rio J.)

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The dissimilar butt welding of nickel 201 and AISI 316 was studied by utilising a 4 kW CO 2 laser with the help of Response Surface Methodology (RSM). The effects of laser power are 2580-3420 W; welding speed 450-1150 mm/s; focal position -1 to 0 mm; beam angle 84-96 degrees; and beam offset 0-0.2 mm on weld geometry, i.e., depth of penetration, bead width, and the Fusion Zone Area (FZ). The required weld profile responses for dissimilar butt welding were modeled mathematically. The constructed models were tested using the sequential F-test, lack of fit test, and analysis of variance (ANOVA). Mathematical models are reflected in the output answers within the parameters of the input process. This laser welding process with an optimal condition zone was discovered using a numeric optimization technique. It aids in the optimization of this process's regulated responses by allowing for more effective parameter combinations. It is clear from the tensile test results that the expected weld strength has been achieved. There is some delta ferrite found in the interdendritic zone in the microstructure and the solidification process reveals columnar grains.

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