Saravanan Kandasamy Ganesan (Author), Rajasekaran Thanigaivelan (Author)

Abstract

Stainless steel (SS316L) is applied in numerous fields due to its intrinsic properties. In this study, micro-dimples were fabricated on SS316L. The effects of laser process parameters, such as frequency, average power, and pulse duration, on the average dimple diameter, dimple distance, and dimple depth were studied using an L9 orthogonal array. The analysis of variance (ANOVA) and multi-objective optimization technique, principal-component-analysis-coupled grey relational grade (GRG), was used to optimize laser process parameters on output responses. The optimal machining parameter settings obtained for the highest GRG peak value of 0.2642 are 15 kHz (frequency), 12 W (average power), and 1500 ns (pulse duration). The ANOVA results showed that average power is the most influential factor, contributing 86.40 % to performance measures (average dimple diameter (%), dimple distance (d), and depth (l). Moreover, the effect of process parameters was studied using mean effect plots, and the micro-dimple quality was analysed using SEM micrographs.

Keywords

lasers;micro-dimples;principal component analysis;grey relational grade;stainless steels;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FS - Faculty of Mechanical Engineering
UDC: 669.14.018.8:535
COBISS: 82700291 Link will open in a new window
ISSN: 0039-2480
Views: 215
Downloads: 48
Average score: 0 (0 votes)
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Other data

Secondary language: Slovenian
Secondary title: Optimizacija parametrov laserske obdelave in geometrije jamic po kombinirani metodi PCA-GRG
Secondary keywords: laserji;mikrojamice;analiza glavnih komponent;siva relacijska stopnja;nerjavna jekla;
Type (COBISS): Article
Pages: str. 525-533
Volume: ǂVol. ǂ67
Issue: ǂno. ǂ10
Chronology: Okt. 2021
DOI: 10.5545/sv-jme.2021.7246
ID: 13763218
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