Evaluation of the effect of process parameters on the cut quality in fiber laser cutting of duplex stainless steel using Response Surface Method (RSM)

2021 ◽  
pp. 103896
Author(s):  
Ming Li
Keyword(s):  
Stainless Steel ◽  
Fiber Laser ◽  
Duplex Stainless Steel ◽  
Response Surface ◽  
Response Surface Method ◽  
Process Parameters ◽  
Laser Cutting ◽  
Surface Method ◽  
Cut Quality

scholarly journals Optimizing Laser Powder Bed Fusion Parameters for IN-738LC by Response Surface Method

Materials ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 4879
Author(s):  
Mireia Vilanova ◽  
Rubén Escribano-García ◽  
Teresa Guraya ◽  
Maria San Sebastian
Keyword(s):  
Response Surface ◽  
Response Surface Method ◽  
Process Parameters ◽  
Crack Density ◽  
Processing Parameters ◽  
Optimum Process ◽  
Powder Bed Fusion ◽  
Laser Powder Bed Fusion ◽  
Powder Bed ◽  
Surface Method

A method to find the optimum process parameters for manufacturing nickel-based superalloy Inconel 738LC by laser powder bed fusion (LPBF) technology is presented. This material is known to form cracks during its processing by LPBF technology; thus, process parameters have to be optimized to get a high quality product. In this work, the objective of the optimization was to obtain samples with fewer pores and cracks. A design of experiments (DoE) technique was implemented to define the reduced set of samples. Each sample was manufactured by LPBF with a specific combination of laser power, laser scan speed, hatch distance and scan strategy parameters. Using the porosity and crack density results obtained from the DoE samples, quadratic models were fitted, which allowed identifying the optimal working point by applying the response surface method (RSM). Finally, five samples with the predicted optimal processing parameters were fabricated. The examination of these samples showed that it was possible to manufacture IN738LC samples free of cracks and with a porosity percentage below 0.1%. Therefore, it was demonstrated that RSM is suitable for obtaining optimum process parameters for IN738LC alloy manufacturing by LPBF technology.

Optimization of a nanoparticle ball milling process parameters using the response surface method

2018 ◽  
Vol 29 (9) ◽  
pp. 2129-2139 ◽  
Author(s):  
Srdjan Petrović ◽  
Ljiljana Rožić ◽  
Vesna Jović ◽  
Stevan Stojadinović ◽  
Boško Grbić ◽  
...  
Keyword(s):  
Response Surface ◽  
Ball Milling ◽  
Response Surface Method ◽  
Process Parameters ◽  
Milling Process ◽  
Ball Milling Process ◽  
Surface Method
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