Effect of Process Parameter on Tensile Strength of Spot Welded S235 Sheet Using Simulation and Experimental

2020 ◽  
Vol 899 ◽  
pp. 169-179
Author(s):  
Mohd Nazri Yusuf ◽  
Wan Emri Wan Abdul Rahman ◽  
Yupiter H.P. Manurung
Keyword(s):  
Tensile Strength ◽  
Welded Joint ◽  
Simulation Analysis ◽  
Fem Simulation ◽  
Welding Process ◽  
Process Parameter ◽  
Low Carbon ◽  
Premature Failure ◽  
Optimum Result ◽  
Spot Welded

This study focused on investigation of the effect of process parameter to the tensile strength of a spot welded S235 low carbon steel through simulation and experiment. Resistance spot welding (RSW) is commonly used in joining metal sheets due to its key capabilities, which is time and cost effective as well as high adaptability for automation. However, strength and reliability of a spot welded joint especially in an auto vehicle can be unpredictable. Premature failure of a spot welded joint can be difficult to be predicted but common factors that had been discussed in many research is related with fatigue and residual stress. Process parameter is recognized as one of critical factors affecting the reliability and quality of a spot welded joint. Different type of material and thickness may require different set of parameter to achieve an optimum result. Experimental procedure alone to demonstrate and investigate the effect could be too costly and time inefficient. Therefore, design of experiment and non-linear FEM simulation analysis were used to analyze and validate the result. This study shows the significance of process parameters such as weld current and electrode pressure to the strength of a spot welded joint and accurate setting is needed prior to the welding process to achieve an optimum result.

Influence of Friction Stir Welding Process on the Weld Formation and Tensile Strength of Titanium and Aluminum Dissimilar Alloys Welded Joint

2011 ◽  
Vol 189-193 ◽  
pp. 3266-3269 ◽  
Author(s):  
Yu Hua Chen ◽  
Peng Wei ◽  
Quan Ni ◽  
Li Ming Ke
Keyword(s):  
Tensile Strength ◽  
Friction Stir Welding ◽  
Cross Section ◽  
Welded Joint ◽  
Welding Process ◽  
Dissimilar Materials ◽  
Influence Of Process Parameters ◽  
Friction Stir ◽  
Dissimilar Alloys ◽  
Titanium Aluminum

Titanium alloy TC1 and Aluminum alloy LF6 were jointed by friction stir welding (FSW), and the influence of process parameters on formation of weld surface, cross-section morphology and tensile strength were studied. The results show that, Titanium and Aluminum dissimilar alloy is difficult to be joined by FSW, and some defects such as cracks and grooves are easy to occur. When the rotational speed of stir head(n) is 750r/min and 950r/min, the welding speed(v) is 118mm/min or 150mm/min, a good formation of weld surface can be obtained, but the bonding of titanium/aluminum interface in the cross-section of weld joint is bad when n is 750r/min which results in a low strength joint. When n is 950r/min and v is 118mm/min，the strength of the FSW joint of Titanium/Aluminum dissimilar materials is 131MPa which is the highest．

Fiber Laser Welding of Noncombustible Magnesium Alloy

2008 ◽  
Vol 580-582 ◽  
pp. 479-482 ◽  
Author(s):  
Yuji Sakai ◽  
Kazuhiro Nakata ◽  
Takuya Tsumura ◽  
Mitsuji Ueda ◽  
Tomoyuki Ueyama ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Magnesium Alloy ◽  
Laser Welding ◽  
Fiber Laser ◽  
Vickers Hardness ◽  
Laser Power ◽  
Welded Joint ◽  
Welding Process ◽  
Fiber Laser Welding ◽  
Laser Welding Process

Noncombustible magnesium alloy AMC602 (Mg-6mass%Al-2mass%Ca) extruded sheet of 2.0mm thickness was successfully welded using a fiber laser welding process at welding speed of 10m/min at 3kW laser power. Tensile strength of the welded joint was about 82 to 88% of that of the base metal. Vickers hardness, tensile strength and micro structural properties are also discussed.

Optimization of Argon Gas Metal Arc Welding Process Parameters with Regard to Tensile Strength for AISI 310 Stainless Steel Using Taguchi Technique

2022 ◽  
Vol 58 ◽  
pp. 1-10
Author(s):  
Hanmant Virbhadra Shete ◽  
Sanket Dattatraya Gite
Keyword(s):  
Tensile Strength ◽  
Arc Welding ◽  
Welded Joint ◽  
Gas Metal Arc Welding ◽  
Welding Process ◽  
Taguchi Technique ◽  
Argon Gas ◽  
Metal Arc Welding ◽  
310 Stainless Steel ◽  
Arc Welding Process

Gas metal arc welding (GMAW) is the leading process in the development of arc welding process for higher productivity and quality. In this study, the effect of process parameters of argon gas welding on the strength of T type welded joint of AISI 310 stainless steel is analyzed. The Taguchi technique is used to develop the experimental matrix and tensile strength of the welded joint is measured using experimental method and finite element method. Optimization of input parameter is performed for the maximum tensile strength of welded joint using ANOVA. The results showed that welding speed is the most significant factor affecting the tensile strength followed by voltage in argon gas metal arc welding (AGMAW) process. Argon gas welding process performance with regard to the tensile strength is optimized at voltage: 18.5 V, wire feed speed: 63 m/min and welding speed: 0.36 m/min.

Enhancements on dissimilar friction stir welding between AZ31 and SPHC mild steel with Al-Mg as powder additives

2021 ◽  
pp. 1-22
Author(s):  
Mohd Ridha Muhamad ◽  
Sufian Raja ◽  
Mohd Fadzil Jamaludin ◽  
Farazila Yusof ◽  
Yoshiaki Morisada ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Friction Stir Welding ◽  
Mild Steel ◽  
Welding Speed ◽  
Welded Joint ◽  
Microstructural Analysis ◽  
Welding Process ◽  
Dissimilar Materials ◽  
Friction Stir ◽  
Welding Interface

Abstract Dissimilar materials joining between AZ31 magnesium alloy and SPHC mild steel with Al-Mg powder additives were successfully produced by friction stir welding process. Al-Mg powder additives were set in a gap between AZ31 and SPHC specimen's butt prior to welding. The experiments were performed for different weight percentages of Al-Mg powder additives at welding speeds of 25 mm/min, 50 mm/min and 100 mm/min with a constant tool rotational speed of 500 rpm. The effect of powder additives and welding speed on tensile strength, microhardness, characterization across welding interface and fracture morphology were investigated. Tensile test results showed significant enhancement of tensile strength of 150 MPa for 10% Al and Mg (balance) powder additives welded joint as compared to the tensile strength of 125 MPa obtained for welded joint without powder additives. The loss of aluminium in the alloy is compensated by Al-Mg powder addition during welding under a suitable heat input condition identified by varying welding speeds. Microstructural analysis revealed that the Al-Mg powder was well mixed and dispersed at the interface of the joint at a welding speed of 50 mm/min. Intermetallic compound detected in the welding interface contributed to the welding strength.

J0470105 Effect of friction welding condition on tensile strength of friction welded joint between Ti-6Al-4V and low carbon steel

2015 ◽  
Vol 2015 (0) ◽  
pp. _J0470105--_J0470105-
Author(s):  
Masaaki KIMURA ◽  
Tsukasa IIJIMA ◽  
Masahiro KUSAKA ◽  
Koichi KAIZU ◽  
Akiyoshi FUJI ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Carbon Steel ◽  
Friction Welding ◽  
Welded Joint ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Welding Condition

scholarly journals Tensile stress-strain analysis of resistance spot weld using non-linear FEM with experimental verification

2021 ◽  
Vol 66 (1) ◽  
pp. 5-21
Author(s):  
Nazri Mohd ◽  
Emri Wan ◽  
Yupiter Manurung ◽  
Micheal Stoschka ◽  
Muhammad Suhaimi ◽  
...  
Keyword(s):  
Tensile Test ◽  
Fem Simulation ◽  
Low Carbon Steel ◽  
Welding Process ◽  
Strain Analysis ◽  
Spot Weld ◽  
Low Carbon ◽  
Stress Strain ◽  
Resistance Spot ◽  
Resistance Spot Weld

This research presents an investigation on stress-strain behavior induced by resistance spot weld followed by tensile shear test. The spot weld is modeled according to standardized dimension for tensile test with main material properties of Cu as electrode and low carbon steel S235 as plates with 1mm thickness which include electric conductivity, resistivity and heat transfer coefficient for solid body as well as a contact interface. The FEM simulation is conducted using the process parameter of current between 6,000 A to 15,000 A, force at 5,000 N and different stages of time following the welding process and tensile test which is carried out after releasing both of the electrodes and material reaches the initial temperature with contact clamp velocity of 5mm/min. To ensure the glued elements between the plates, subroutine in MSC Marc/Mentat is used in the simulation with defined temperature. The outcome of simulation results will be verified with series of experiments. It is expected that simulation will give good agreement compared to experimental analysis within acceptable range of error.

ANALISA KEKUATAN MEKANIS SAMBUNGAN LAS KAMPUH V TUNGGAL DAN V GANDA PADA BAJA KARBON RENDAH DENGAN PROSES PENGELASAN SMAW

2021 ◽  
Vol 12 (2) ◽  
pp. 103
Author(s):  
Sudarsono Sudarsono ◽  
Hidayat Hidayat ◽  
Aminur Aminur ◽  
Sarwo Pranoto ◽  
Prinob Aksar
Keyword(s):  
Tensile Strength ◽  
Bending Strength ◽  
Low Carbon Steel ◽  
Welding Process ◽  
Bending Test ◽  
Uniaxial Tensile ◽  
Uniaxial Tensile Test ◽  
Low Carbon ◽  
Shielded Metal Arc Welding ◽  
Metal Arc Welding

Welding is one of the methods widely used in the joining of metals for structural elements. One of the factors that influence the strength of welded metals is types of welding joints. Suitability of the type of welding joint with geometries of base metals is required to obtain welded metal products with optimum properties. In this study an attempt is made to investigate mechanical properties of welded metals with two different types of joints (single-V and double-V) using the shielded metal arc welding (SMAW) process. Low carbon steel with bevel angle of 60° was used in this study. Welding process was performed using current of 70 A with a constant welding speed. The flexural properties and uniaxial tensile properties are studied by three-point bending test and uniaxial tensile test respectively. Test results show that the tensile strength and the bending strength of single-V specimens is 521.64 N/mm2 and 525.11 N/mm2 respectively. In addition, the tensile strength and the bending strength of double-V specimens is 517.33 N/mm2 and  504.24 N/mm2 respectively

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