Multi-objective optimization of FSW process parameters for AA1100 joints by using a hybrid technique of PCA-TOPSIS

被引:0
|
作者
Senapati, N. Pallavi [1 ]
Bhoi, Rajat Kumar [2 ]
Bommana, Divakar [3 ]
机构
[1] NSRIT A, Dept Mech Engg, Visakhapatnam, India
[2] SOA Univ, Dept Mech Engg, ITER, Bhubaneswar, India
[3] Gitam Univ, Dept Mech Engg, Visakhapatnam, India
来源
FORSCHUNG IM INGENIEURWESEN-ENGINEERING RESEARCH | 2024年 / 88卷 / 01期
关键词
STIR WELDING PROCESS; MECHANICAL-PROPERTIES; ALUMINUM-ALLOY; NEURAL-NETWORK; TENSILE PROPERTIES; FRICTION; MICROSTRUCTURE; AA5083-AA6082; SPEED;
D O I
10.1007/s10010-024-00756-0
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The friction stir welding (FSW) process is generally preferred to join aluminium and its alloys to facilitate effective joining with better strength and lesser defects. In the present work, application of full-factorial experimental design in combination with principal component analysis (PCA) and Technique for order of preference by similarity to ideal solution (TOPSIS) have been adopted to evaluate the effectiveness of optimizing multiple performance characteristics for joining 5 mm thick AA1100 plates by FSW technique with a square pin tool. The effect of process parameters such as tool rotational speed, welding speed and plunge depth on the response variables that are ultimate tensile strength, flexural stress, microhardness, average grain size and residual stresses has been studied. The optimal parameter setting is achieved at rotational speed = 1200 r min-1, welding speed = 40 mm min-1 and plunge depth = 0.3 mm. Predicted results have been verified by confirmatory tests which show an improvement of 1.45 Mpa increase in tensile strength of the weld sample. This procedure can be advantageous for various industries and researchers as an optimum condition for multiples responses is very essential for manufacturing processes in the current scenario. Das Reibr & uuml;hrschwei ss verfahren (FSW) wird im Allgemeinen zum Verbinden von Aluminium und seinen Legierungen bevorzugt, um eine effektive Verbindung mit besserer Festigkeit und weniger Defekten zu erm & ouml;glichen. In der vorliegenden Arbeit wurde die Anwendung des vollfaktoriellen experimentellen Designs in Kombination mit der Hauptkomponentenanalyse (PCA) und der Technik zur Pr & auml;ferenzreihenfolge anhand der & Auml;hnlichkeit zur idealen L & ouml;sung (TOPSIS) & uuml;bernommen, um die Wirksamkeit der Optimierung mehrerer Leistungsmerkmale f & uuml;r das F & uuml;gen zu bewerten 5 mm dicke AA1100-Platten durch FSW-Technik mit einem Vierkantstiftwerkzeug. Der Einfluss von Prozessparametern wie Werkzeugrotationsgeschwindigkeit, Schwei ss geschwindigkeit und Eintauchtiefe auf die Reaktionsvariablen Zugfestigkeit, Biegespannung, Mikroh & auml;rte, durchschnittliche Korngr & ouml;ss e und Eigenspannungen wurde untersucht. Die optimale Parametereinstellung wird bei Drehzahl = 1200 U/min, Schwei ss geschwindigkeit= 40 mm/min und Eintauchtiefe = 0,3 mm erreicht. Die vorhergesagten Ergebnisse wurden durch Best & auml;tigungstests best & auml;tigt, die eine Verbesserung der Zugfestigkeit der Schwei ss probe um 1,45 MPa zeigten. Dieses Verfahren kann f & uuml;r verschiedene Branchen und Forscher von Vorteil sein, da optimale Bedingungen f & uuml;r Mehrfachantworten f & uuml;r Herstellungsprozesse im aktuellen Szenario von entscheidender Bedeutung sind.
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页数:14
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