Prediction of weld strength by parametric optimization of resistance spot welding using Taguchi method

2019 ◽  
Author(s):  
P. A. Dhawale ◽  
B. P. Ronge Name
Keyword(s):  
Taguchi Method ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Parametric Optimization ◽  
Weld Strength ◽  
Resistance Spot

Studies on the Mechanical Property of Ring Nugget Formed in Sheet to Tube Joining

2011 ◽  
Vol 291-294 ◽  
pp. 819-822
Author(s):  
Cai Ping Liang ◽  
Fang Fang Sun ◽  
Xiao Hang Liu
Keyword(s):  
Mechanical Property ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Maximum Stress ◽  
Failure Criteria ◽  
Weld Strength ◽  
Automobile Manufacturing ◽  
Resistance Spot ◽  
Vehicle Structure ◽  
Ring Spot

Single sided resistance spot welding (SSRSW) developed from resistance spot welding (RSW) is a feasible plan to join vehicle structure to closed-form tube and is increasingly used in automobile manufacturing. A ring spot weld can be formed between the two workpieces during this process. The weld strength is critical to the performance of vehicle. The mechanical property of the ring nugget, however, is lack of attention. In this study, a simulation model of workpieces with ring nugget for tensile-shear test was established and the stress and strain distributions around the weld were researched in detail. It was found that the maximum stress is generally concentrated at the out edge around the ring nugget. The failure region, however, may be in the heat affected zone (HAZ) instead of in the place of maximum stress, which should be judged by stress failure criteria (SFC) in the model. In addition, the tensile stress and shear stress on the surface of the lower sheet and upper tube were illustrated.

Multi-Response Optimization Using Taguchi Method of Resistance Spot Welding Parameters

2014 ◽  
Vol 660 ◽  
pp. 120-124 ◽  
Author(s):  
Farizah Adliza Ghazali ◽  
Yupiter HP Manurung ◽  
Mohamed Ackiel Mohamed
Keyword(s):  
Shear Strength ◽  
Taguchi Method ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Signal To Noise Ratio ◽  
Welding Parameter ◽  
Welding Parameters ◽  
Resistance Spot ◽  
Electrode Force ◽  
Weld Current

This paper presents the effects of spot welding parameters on multi-response weld quality and optimizes the governing parameters of Resistance Spot Welding (RSW) towards the tensile shear strength and nugget size using Taguchi method. The main affecting welding parameters such as electrode force, weld time and weld current were determined as the basis for quality evaluation. The selected quality features were classified into shear strength and nugget size which were required for application with highly dynamic loading. The optimum welding parameter was obtained using multi signal-to-noise ratio (MSNR) and the significant level of welding parameters was further analysed using analysis of variance (ANOVA). Based on the results, electrode force was found to be most effective parameter affecting shear strength and nugget size. The experiment was conducted at optimum welding parameter and validated the used of multi-objective Taguchi method for enhancing performance and optimizing the welding parameters in RSW process.

scholarly journals Optimization of the Process Parameters of Resistance Spot Welding of AISI 316l Sheets Using Taguchi Method

2019 ◽  
Vol 23 (1) ◽  
pp. 64-69
Author(s):  
P. Muthu
Keyword(s):  
Shear Stress ◽  
Taguchi Method ◽  
Process Parameters ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Sheet Thickness ◽  
Experimental Investigations ◽  
Tensile Shear ◽  
Optimal Process ◽  
Resistance Spot

Abstract Resistance spot welding (RSW) is a fabrication process that is being used in the automobile and aerospace industry since many years for joining low carbon or “mild” steel. Quality and strength of the welds depend upon the process parameters of RSW. The most effective parameters in this process are: current intensity, welding time, sheet thickness and material, geometry of electrodes, electrode force, and current shunting. This paper presents the experimental investigations for the optimization of tensile shear stress of RSW for stainless steel grade 316L sheets by using Taguchi method. The experiments were conducted using Taguchi’s L27 orthogonal array under varying process parameters, namely electrode diameter, welding current, and heating time. The experimental data were analyzed using signal-to-noise ratio (S/N ratio) to find the optimal process parameters. Analysis of variance (ANOVA) and F test were used to find the most significant parameters affecting the spot weld quality characteristics. Confirmation tests with optimal process parameters were conducted to validate the test results. From the results, it was found that it is possible to increase tensile shear stress significantly.

scholarly journals USING BRASS FOIL INTERLAYER TO IMPROVE THE RESISTANCE SPOT WELDING AA5451 WITH APPLY TAGUCHI METHOD

2019 ◽  
Vol 42 (3) ◽  
pp. 120-124
Author(s):  
Osamah Sabah Barrak ◽  
Mohammed Helan Sar ◽  
Mursal Luaibi Saad ◽  
Abbas Khammass Hussein ◽  
Sabah Khammass Hussein
Keyword(s):  
Taguchi Method ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Resistance Spot ◽  
Foil Interlayer

STRENGTH CHARACTERISTICS ON RESISTANCE SPOT WELDING OF Al ALLOY SHEETS BY TAGUCHI METHOD

2006 ◽  
Vol 20 (25n27) ◽  
pp. 4297-4302 ◽  
Author(s):  
HAN-KI YOON ◽  
BYEONG-HYEON MIN ◽  
CHIL-SOON LEE ◽  
DO-HYOUNG KIM ◽  
YOUN-KYOUM KIM ◽  
...  
Keyword(s):  
Experimental Design ◽  
Taguchi Method ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Welding Current ◽  
Al Alloy ◽  
Welding Time ◽  
Tensile Shear ◽  
Resistance Spot ◽  
Electrode Force

Optimal welding condition in resistance spot welding of 7075-T6 aluminum alloy sheets with the thickness of 0.4mm was investigated by the tensile-shear strength tests and Taguchi method in experimental design with changing various welding conditions respectively. The tensile-shear tests were carried out at cross-head speeds of 0.1mm/min in accordance with the KS B0851. Design methods were systematically performed using an L27(39) orthogonal array table. In the experimental design, three control factors of resistance spot welding conditions were electrode force, welding current and welding time. Electrode force conditions were 882N, 1323N and 1764N, and welding current were 13.5kA, 14kA and 14.5kA, and welding time were 3cycle, 4cycle and 5cycle.

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