Laser treatments of Nimonic 263 nickel-based superalloy

Petronić, Sanja; Milovanović, Dubravka; Milosavljević, Aleksandra; Radovanović, Željko; Cekić-Erić, Olivera; Jovičić, Radomir

doi:10.5937/zasmat1901026p

Cited by 1 publication

(1 citation statement)

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“…Achieving optimal hole quality is an important area of current research, and laser drilling has several advantages over conventional procedures. Also, conventional laser surface treatments are mostly thermal or thermo-chemical while laser shock peening induces shock waves of purely mechanical or thermomechanical effects [1].…”

Section: Introductionmentioning

confidence: 99%

The comparison of metaheuristic algorithms in parametric optimization of laser-based processes

Šibalija¹,

Petronić²

2021

Tehnika

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The paper presents parametric optimization of two heterogeneous laser-based processes with multiple outputs (laser drilling and laser shock peening), using an advanced optimisation methodology. The data obtained from experimentations are processed by statistical method to address requirements for multiple responses, and then the process interrelationships are mapped using artificial neural networks. The neural process model is fed into three major metaheuristic algorithms whose effectiveness are benchmarked: genetic algorithm, simulated annealing and particle swarm optimization. The results are discussed in terms of the quality of the obtained solutions and convergence rate, as well as the influence of the algorithm's hyper-parameters on the obtained results. The adopted optimization results are successfully verified in practice. The recommendations for the metaheuristic algorithm selection and guidelines for the algorithm settings are drawn.

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Section: Introductionmentioning

confidence: 99%