Analysis of Influence of Process Parameters of Laser Cutting on Al 6061

We Selected material of Aluminum 6061Alloy .We Selected Fiber as a Laser to cut the material. We Consider process parameter like cutting speed, laser power, gas pressure(bar). We selected performance parameters like kerf width, kerf taper angle, surface roughness, HAZ(Heat affected zone),Striation.Using Design of Experimentation software V13 by using Box Behnken method we generated a table. By using the DOE table we cut the aluminum material into 17 pieces.Now we have to measure the performance parameters.Then we have to develop the model to predict the performance parameters and analysis of model. Then we have to optimize the process parameters to improve performance parameters. The study investigated the effect of cutting speed, laser power, and gas pressure on the laser cutting of Aluminium 6061 A total of 17 experiments were conducted using the Design of Experiments (DOE) method. The process parameters were optimized using the Linear Regression method. Surface roughness increased with higher laser power and gas pressure, while it remained nearly constant with cutting speed. Kerf width and kerf taper increased with laser power but decreased with higher cutting speed and gas pressure. Striation decreased with an increase in laser power, cutting speed, and gas pressure, improving cut quality. The predicted results closely matched the experimental results, confirming the accuracy and reliability of the developed model. The optimized laser cutting parameters can be used to achieve better cutting quality for Aluminium 6061 alloy.

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