An experimental design of spot welding of Ti6Al4V sheets and numerical modeling approach

Bozkurt, Fatih; Çakir, Fatih

doi:10.1007/s40194-020-01054-3

Cited by 6 publications

(4 citation statements)

References 33 publications

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“…As a cost‐effective way, resistance spot welding (RSW) is considered as an alternative to mechanical fastening and adhesive bonding to join similar/dissimilar alloys in the aerospace field. [ 21–23 ] Yang et al [ 24 ] investigated the RSW of 2195 Al–Li alloy and 5A06 aluminum alloy in terms of microstructure, element distribution, precipitates, microhardness distribution, and tensile‐shear property. Cheng et al [ 25 ] studied the microstructure and mechanical properties of 5A90 Al–Li alloy spot welded joint, and found that the microstructure of the nugget zone is mainly equiaxed grains.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Similar/Dissimilar Resistance Spot‐Welded Aluminum Alloys for Aerospace Applications

Li,

Yang,

et al. 2024

Adv Eng Mater

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2195 aluminum‐lithium (Al‐Li) and 2XXX series aluminum alloys were joined using resistance spot welding (RSW) for the first time. The macrostructure, microstructure, element distribution, microhardness, and tensile‐shear properties of spot welded joints were investigated. The microstructure of the nugget zone of 2195 Al‐Li alloy and 2195, 2219, and 2A14 RSWed joints were fine equiaxed spherical grains. It was found that solute segregation of Cu occurred in the grain boundaries in the nugget zone, forming Al2Cu. The microhardness showed that due to the dissolution of strengthening phase T1, the hardness of the nugget zone of the three types of RSWed joints was smaller than that of the base material. The 2195/2195 joint had the best mechanical performance among the three combinations, with maximum tensile‐shear force and absorbed energy reached 16893.7 N and 24.9 J respectively. The fracture surfaces of all three types of joints exhibited mixed ductile brittle fracture.This article is protected by copyright. All rights reserved.

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Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Similar/Dissimilar Resistance Spot‐Welded Aluminum Alloys for Aerospace Applications

Li,

Yang,

et al. 2024

Adv Eng Mater

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“…Resistance spot welding is a welding method that is very widely used in the automotive, electronics, and other manufacturing industries. This is used to assemble thin sheets of metal in the automotive industry [1], car bodies, frames, doors, and tailgates [2]. This technique involves heating two sheets of metal to the melting point using a high electric current and strong pressure.…”

Section: Introductionmentioning

confidence: 99%

Optimization of resistance spot welding with surface roughness dissimilar mild steel with stainless steel

Ariyanto,

Sukardin,

Renreng

et al. 2023

EEJET

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Resistance spot welding plays a critical role in the manufacture dissimilar material industry. However, there are differences in mechanical properties between mild steel and satinless steel so as to reduce the quality of welded joints. In order for differences in mechanical properties to be corrected, surface roughness was treated. The aim of this study was to optimize the welding parameters of DRSW with surface roughness by analysis using the Taguchi and Anova Methods. In this study discusses about investigates the Resistance spot welding parameters on weld geometry, mechanical properties, and SEM EDS on dissimilar materials of mild steel and stainless steel. The material thickness of the mild steel and stainless steel are 1 mm, respectively. The process parameters of the resistance spot welding joint used, example; surface roughness, current, welding time, and electrode force. Quality welding joint test results include weld geometry, mechanical properties, and SEM EDS. Weld geometry testing to determine the weld nugget profile. The mechanical properties test was shear tensile test, while the SEM EDS included macrostruture and microstructure observations. The results showed the highest nugget diameter 6.65 mm highest shear tensile strength 7.66 kN. The most influential parameter is current by 75.08 %, then surface roughness by 12.35 %. The highest tensile strength has fewer defects. Surface roughness treatment before welding is very good to make welding quality joints between mild steel and quality stainless steel increase. Surface roughness treatment was very good to be included when making welding procedures for welding engineers for welding processes resistance spot welding dissimilar mild steel with stainless steel.

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“…In the recent past, researchers employed the conventional statistical design of experiment (DOE) based techniques like the Taguchi method, Response Surface Methods (RSM), Grey Relational Analysis (GRA), etc to optimize spot-welding process parameters. Attempts to optimize tensile strength for spot-welded joints of Titanium alloy [Bozkurt and Çakır (2021), Fatmahardi et al (2021)], aluminum alloys [Raheem, (2021)], dissimilar materials combining steels and composites [Neystani et al (2019)], steels [Tyagi et al(2022), Kumar et al (2021), Ebrahimpour et al (2021)], have been computed through the Taguchi method [Bozkurt and Çakır (2021), Fatmahardi et al (2021), Neystani et al (2019), Tyagi et al(2022), Kumar et al (2021)] and RSM [Raheem, (2021), Ebrahimpour et al (2021)]. But such processes generally involve high mathematical complexity among operating parameters and possible experimental noise.…”

Section: Introductionmentioning

confidence: 99%

“…The literature survey indicates applications of several conventional statistical methods including Taguchi, RSM, etc to optimize the resistance spot welding processes [Bozkurt and Çakır (2021), Fatmahardi et al (2021), Neystani et al (2019), Tyagi et al (2021), Kumar et al (2021)] Raheem, (2021), Ebrahimpour et al (2021)]. However, those optimization processes have inherent limitations to stuck into local minima often resulting in faulty optimized output for multimodal problems.…”

Section: Introductionmentioning

confidence: 99%

Optimisation of spot-welding process using Taguchi based Cuckoo search algorithm

Chaki¹,

Bose

2022

Decis. Mak. Appl. Manag. Eng.

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The present work evaluated the efficiency of a Taguchi-based Cuckoo Search (CS) algorithm for optimizing the spot-welding process. The L9 orthogonal array of the Taguchi method is used for the conduction of required experiments. During the study input parameters are welding current (kA), hold time (cycles), welding time (cycles), and electrode pressure (kPa) while Peak Load, kN has been considered as an output parameter. The required objective function is developed through regression model formulation. Initially, CS operating parameters such as maximum number of iterations, number of nests, and probability to discover a cuckoo egg by host bird is optimized through the Taguchi method and are found as 40, 20, 0.5 respectively. That optimized CS further optimizes the spot-welding process. The maximum peak load of 34.5 kN is obtained if the welding current is 30.7 kA, welding time is 32 cycles, hold time is 20 cycles, and electrode pressure is 480 kPa respectively. Experimental validation yields a very low % error of 1.93% during optimization with an optimized CS method and while the error is substantially high if optimization is conducted using a non-optimized CS method

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An experimental design of spot welding of Ti6Al4V sheets and numerical modeling approach

Cited by 6 publications

References 33 publications

Microstructure and Mechanical Properties of Similar/Dissimilar Resistance Spot‐Welded Aluminum Alloys for Aerospace Applications

Microstructure and Mechanical Properties of Similar/Dissimilar Resistance Spot‐Welded Aluminum Alloys for Aerospace Applications

Optimization of resistance spot welding with surface roughness dissimilar mild steel with stainless steel

Optimisation of spot-welding process using Taguchi based Cuckoo search algorithm

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