Optimization of Process Parameters for Microwave Convective Drying of Grapes Using Response 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.

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

Advanced Powder Technology ◽

10.1016/j.apt.2018.05.021 ◽

2018 ◽

Vol 29 (9) ◽

pp. 2129-2139 ◽

Cited By ~ 11

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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Improving structural properties of polymer fibers to design and construct fiber spinneret and optimize process parameters using response surface method and gage R&R

Journal of Mechanical Science and Technology ◽

10.1007/s12206-018-0216-7 ◽

2018 ◽

Vol 32 (3) ◽

pp. 1135-1142 ◽

Cited By ~ 2

Author(s):

Hossein Gheshlaghi Gadim ◽

Ali Doniavi

Keyword(s):

Response Surface ◽

Structural Properties ◽

Response Surface Method ◽

Process Parameters ◽

Polymer Fibers ◽

Surface Method

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Analysis and optimization of process parameters of the degradable fiber mulch paper made from pineapple leaf and rice straw by response surface method

BioResources ◽

10.15376/biores.16.2.3454-3468 ◽

2021 ◽

Vol 16 (2) ◽

pp. 3454-3468

Author(s):

Xianglan Ming ◽

Qichao Li ◽

Jinlong Feng ◽

Wei Jiang

Keyword(s):

Response Surface ◽

Rice Straw ◽

Response Surface Method ◽

Process Parameters ◽

Technical Support ◽

Wet Strength ◽

Pineapple Leaf Fiber ◽

Surface Method ◽

Tension Strength ◽

Leaf Fiber

To improve the utilization rate of pineapple leaf and crop straw, and provide technical support for making biodegradable fiber mulch paper through organic cultivation, the process and properties of the degradable fiber mulch paper made from pineapple leaf and rice straw were studied. The degradable fiber mulch paper was prepared as a hybrid composite in which pineapple leaf fiber and rice straw fiber were used as raw materials, and environmentally friendly agents were added. A four-factor five-level quadratic orthogonal rotation central composite design of the response surface method was employed. The beating degree of pineapple leaf fiber, basis weight, addition ratio of pineapple leaf fiber, and wet strength agent content were process parameters; dry tension strength, wet tension strength, and bursting strength were objective functions. The optimal technology parameters of pineapple leaf and rice straw fiber mulch paper were 70 to 90 g/m2 basis weight of pineapple leaf fiber, 17% to 25% addition ratio of pineapple leaf fiber, 55 °SR beating degree, and 1.5% wet strength agent content. According to the tensile strength and bursting strength standards, the degradable fiber mulch paper made from pineapple leaf and rice straw was feasible. The results provide theoretical basis and technical support to use pineapple leaves and rice straw to make degradable mulch paper.

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