Joining of Dissimilar 6063 Aluminium Alloy – 316L Stainless Steel by Spot Welding: Tensile Shear Strength and Heat Treatment

2013 ◽  
Vol 795 ◽  
pp. 492-495 ◽  
Author(s):  
Mohd Noor Mazlee ◽  
Alvin Tan Yin Zhen ◽  
Shamsul Baharin Jamaludin ◽  
Nur Farhana Hayazi ◽  
Shaiful Rizam Shamsudin
Keyword(s):  
Heat Treatment ◽  
Stainless Steel ◽  
Shear Strength ◽  
Spot Welding ◽  
316L Stainless Steel ◽  
Welding Current ◽  
Tensile Shear Strength ◽  
Tensile Shear ◽  
Heat Treated ◽  
6063 Aluminum Alloy

Tensile shear strength and ageing treatment of dissimilar 6063 aluminum alloy-316L stainless steel joint fabricated by spot welding were investigated. The results showed that tensile shear strength increased with the increasing of welding current. The enhancement of tensile shear strength of the joints was due to the enlargement of the nugget diameter. It was also found that the tensile shear strength values for heat treated joint almost similar to that of non-heat treated joint.

Resistance Spot Welding between Mild Steel and Stainless Steel

2014 ◽  
Vol 675-677 ◽  
pp. 23-26
Author(s):  
Nan Nan Wang ◽  
Ran Feng Qiu ◽  
Wei Jian Peng ◽  
Hong Xin Shi
Keyword(s):  
Stainless Steel ◽  
Shear Strength ◽  
Mild Steel ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Welding Current ◽  
Welding Parameters ◽  
Tensile Shear Strength ◽  
Tensile Shear ◽  
Resistance Spot

Mild steel Q235 and stainless steel SUS304 were welded using resistance spot welding with an interlayer of Ni. The mechanical properties of the joint were examined, the effects of welding parameters on the nugget size and tensile shear strength were investigated. Both the tensile shear strength and nugget diameter increased with the increasing of welding current and welding time, whereas they decreased with the increasing of electrode pressure. The results indicate that the tensile shear strength of joint welded by resistance spot welding with a Ni interplayer is higher in comparison with that obtained by conventional resistance spot weling.

scholarly journals Optimization of Tensile-Shear Strength in the Dissimilar Joint of Zn-Coated Steel and Low Carbon Steel

2020 ◽  
Vol 3 (3) ◽  
pp. 115-125
Author(s):  
Sukarman Sukarman ◽  
Amri Abdulah ◽  
Jatira Jatira ◽  
Dede Ardi Rajab ◽  
Rohman Rohman ◽  
...  
Keyword(s):  
Shear Strength ◽  
Carbon Steel ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Low Carbon Steel ◽  
Welding Current ◽  
Welding Time ◽  
Tensile Shear Strength ◽  
Low Carbon ◽  
Tensile Shear

The present study features analytical and experimental results of optimizing resistance spot welding performed using a pneumatic force system (PFS). The optimization was performed to join SECC-AF (JIS G 3313) galvanized steel material with SPCC-SD low carbon steel. The SECC-AF is an SPCC-SD (JIS G 3141) sheet plate coated with zinc (Zn) with a thickness of about 2.5 microns. The zinc coating on the metal surface causes its weldability to decrease. This study aims to obtain the highest tensile-shear strength test results from the combination of the specified resistance spot welding parameters. The research method used the Taguchi method using four variables and a combination of experimental levels. The experimental levels are 2-levels for the first parameter and 3-levels for other parameters. The Taguchi optimization experimental results achieved the highest tensile-shear strength at 5049.64 N. It properly worked at 22 squeeze time cycles, 25 kA of welding current, and 0.6-second welding time and 12 holding-time cycles. The S/N ratio analysis found that the welding current had the most significant effect, followed by welding time, squeeze time, and holding time. The delta S/N ratio values were 1.05, 0.67, 0.57 and 0.29, respectively.

Effect of Heat Treatments on 302 Austenitic Stainless Steel Spot Weld

2018 ◽  
Vol 29 ◽  
pp. 19-25
Author(s):  
A.M. Al-Mukhtar ◽  
Shaymaa Abdul Khader Al-Jumaili ◽  
Ali Hussein Fahem Al-Jlehawy
Keyword(s):  
Stainless Steel ◽  
Shear Strength ◽  
Austenitic Stainless Steel ◽  
Spot Welding ◽  
Welding Process ◽  
Annealing Treatment ◽  
Treatment Temperature ◽  
Tensile Shear Strength ◽  
Tensile Shear ◽  
The Reformation

The shear strength of 302 austenitic stainless steel spot welds has been studied. Thewelding current in resistance spot welding process (RSW) plays a significant role. However,this item's effect is well known and extensively studied in the previous literature. This work aims toshow the heat treatment’s effect on different joints that welded at various current. The experimentalresults show that the tensile shear strength is increased with increasing the current. Annealingtreatment improves the tensile shear strength due to the reformation of the grain size and removesthe residual stresses. Grain refinement is an effective technique for improving the strength.Therefore, the tensile shear strength is increased by annealing treatment temperature up to 750 °C.However, at 850°C, the tensile shear strength is dropped down.

scholarly journals Optimization of Resistance Spot Welding (RSW) Parameters by using Taguchi Method

2020 ◽  
Vol 9 (3) ◽  
pp. 2795-2800
Keyword(s):  
Shear Strength ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Welding Current ◽  
Welding Parameters ◽  
Welding Time ◽  
Tensile Shear Strength ◽  
Tensile Shear ◽  
Resistance Spot ◽  
Electrode Force

This study was intended to optimize the resistance Spot Welding Parameters (RSW) of sheet metals joints. The variation parameters selected were electrode force, welding current and welding time of 1.2 mm thickness low carbon steel. The settings of process parameters were conducted according to the L9 Taguchi orthogonal array in randomized way. The optimum process parameter was then obtained by using signal to noise ratio and analyzed further on the significant level by using Analysis of Variance (ANOVA). The developed response has been found well fitted and can be effectively used for tensile shear strength prediction. The optimum parameters achieved were electrode force (2.3 kN), welding time (10 cycles) and welding current (8 kA). Based on the ANOVA, it was found that the electrode force is a vital parameter in controlling the tensile shear strength as compared to welding time and welding current.

Effect of Cryogenic Treated Electrodes on Sensitization in Resistance Spot Welding of Stainless Steel

2016 ◽  
Vol 1137 ◽  
pp. 15-23 ◽  
Author(s):  
Rupinder Singh ◽  
R. Sharma
Keyword(s):  
Stainless Steel ◽  
Shear Strength ◽  
Flow Rate ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Tensile Shear Strength ◽  
Tensile Shear ◽  
Resistance Spot ◽  
Weld Properties ◽  
Weld Time

The aim of this study is to investigate the effect of cryogenic treated electrodes on the sensitization of ‘304 SS’ in resistance spot welding (RSW). An approach to model sensitization based upon the weld properties like: hardness, tensile-shear strength (T-S), while RSW of 304SS has been proposed and applied. Relationship between hardness, T-S and other parameter has been deduced by using Taguchi L9 orthogonal array (OA). The results indicate that for sensitization; coolant flow rate (CFR), weld time and voltage contributes significantly in RSW of SS.

scholarly journals OPTIMIZATION OF THE RESISTANCE SPOT WELDING PROCESS OF SECC-AF AND SGCC GALVANIZED STEEL SHEET USING THE TAGUCHI METHOD

SINERGI ◽  
2021 ◽  
Vol 25 (3) ◽  
pp. 319
Author(s):  
Sukarman Sukarman ◽  
Amri Abdulah ◽  
Apang Djafar Shieddieque ◽  
Nana Rahdiana ◽  
Khoirudin Khoirudin
Keyword(s):  
Shear Strength ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Welding Current ◽  
Galvanized Steel ◽  
Welding Time ◽  
Tensile Shear Strength ◽  
Tensile Shear ◽  
Resistance Spot ◽  
Steel Sheets

This article present the optimization work describes out to joint the dissimilar galvanized steel of SECC-AF (JIS G 3313) and SGCC (JIS G 3302) material. A zinc coating on the surfaces of the galvanized steel sheets will decrease the weldability characteristic of the material. This study used dissimilar galvanised steel sheets to obtain the highest tensile shear strength from the specified resistance spot welding. This research used the Taguchi method with 4-variables and mixed-experimental levels. The mixed-experimental level, namely 2-experimental levels for the first variable and 3-experimental levels for other variables. The highest tensile shear strength was achieved in 5282.13 N. This condition is achieved at a squeezed time of 20 cycles, 27 kA-welding currents, welding time of 0.5 seconds, and holding time of 18 cycles. The S/N ratio analysis has shown the welding current had the most significant effect, followed by welding time, squeeze time, and holding time. The delta values of S/N ratio were 0.79, 0.64, 0.26 and 0.07, respectively. The ANOVA analysis has shown that the P-value of welding current and welding time is 0.006 (0.6%) and 0.015 (1.5%), respectively. This result is expected for optimizing resistance spot welding quality in other materials or significant aspects.

scholarly journals Optimasi parameter resistance spot welding pada pengabungan baja electro-galvanized menggunakan metode Taguchi

2021 ◽  
Vol 11 (1) ◽  
pp. 39
Author(s):  
S. Sukarman ◽  
A. Abdulah
Keyword(s):  
Shear Strength ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Welding Current ◽  
Strength Test ◽  
Welding Time ◽  
Tensile Shear Strength ◽  
Tensile Shear ◽  
Shear Strength Test ◽  
Resistance Spot

The present study features analytical and experimental results of optimizing resistance spot welding performed using a pneumatic (electrode) force system (PFS). This optimization was carried out to incorporate the galvanized steel sheet material SECC-AF (JIS G 3313) and SPCC-SD (JIS 3141) sheet plate coated with zinc with a thickness of about 2.5 microns. The zinc coating on the metal surface causes its weldability to decrease. This study aims to obtain the highest tensile shear strength test results from the combination of the specified resistance spot welding parameters. The research method used the Taguchi method using four variables and a combination of experimental tingkats. This study's experimental tingkat is two tingkats in the first parameter and three tingkats in other parameters. Taguchi optimization results show that the highest tensile shear strength test obtained is 5049.64 N. This was achieved at 22 cycles of squeeze time, 25 kA of welding current, and 0,6-second welding-time, and 12 cycles of holding-time. The S / N ratio analysis found that the welding time had the most significant effect, followed by welding current, holding time, and squeeze time. The delta S / N ratio values were 0.62, 0,41, 0.34 and 0.07, respectively.

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