Effects of process parameters and thermo-mechanical simulation of GMAW process for welding of 3Cr12 steel

Kamble, Avinash; Rao, R. Venkata

doi:10.1080/2374068x.2016.1243406

Cited by 4 publications

(3 citation statements)

References 15 publications

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“…Accordingly, the optimal conditions were estimated using a second-order polynomial function, which generates a correlation between the factors under study and the response. The general form of the equation is given in Equation (1) [ 35 , 36 ]:

where Y , X i , β o , β i , β ii , β ij , k , and ε are the predicted response, independent input variable, constant-coefficient, linear coefficient, quadratic coefficient, interaction coefficient, represent the number of process parameters, and residual error, respectively. Finally, a confirmatory test was performed under optimal conditions for validation regarding the error between experimental and theoretical results.…”

Section: Methodsmentioning

confidence: 99%

Optimization of Bobbin Tool Friction Stir Processing Parameters of AA1050 Using Response Surface Methodology

et al. 2022

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The current research designed a statistical model for the bobbin tool friction stir processing (BT-FSP) of AA1050 aluminum alloy using the Response Surface Method (RSM). The analysis studied the influence of tool travel speeds of 100, 200, and 300 mm/min and different pin geometries (triangle, square, and cylindrical) at a constant tool rotation speed (RS) of 600 rpm on processing 8 mm thickness AA1050. The developed mathematical model optimizes the effect of the applied BT-FSP parameters on machine torque, processing zone (PZ) temperature, surface roughness, hardness values, and ultimate tensile strength (UTS). The experimental design is based on the Face Central Composite Design (FCCD), using linear and quadratic polynomial equations to develop the mathematical models. The results show that the proposed model adequately predicts the responses within the processing parameters, and the pin geometry is the most influential parameter during the BT-FSP of AA1050. The analysis of variance exhibit that the developed mathematical models can effectively predict the values of the machine torque, PZ temperature, surface roughness, hardness, and UTS with a confidence level of over 95% for the AA1050 BT-FSP. The optimization process shows that the optimum parameters to attain the highest mechanical properties in terms of hardness and tensile strength at the lowest surface roughness and machine torque are travel speed (TS) of 200 mm/min using cylindrical (Cy) pin geometry at the constant RS of 600 rpm. The PZ temperature of the processed specimens decreased with increasing TS at different pin geometries. Meanwhile, the surface roughness of the processed passes and machine torque increased with increasing the TS at different pin geometries. Increasing TS from 100 to 300 mm/min increases the hardness values of the processed materials using different pin geometries. The highest UTS of 79 MPa for the processed specimens was attained at the TS of 200 mm/min and RS of 600 rpm using the Cy pin geometry.

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Section: Methodsmentioning

confidence: 99%

Optimization of Bobbin Tool Friction Stir Processing Parameters of AA1050 Using Response Surface Methodology

et al. 2022

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“…As expected, the best conditions were achieved when joining both sides in the same direction and at the same time. Kamble and Rao [10] developed a three-dimensional sequentially coupled thermomechanical model of 10 mm thick plate. e GMAW process was used for joining two 3Cr12 stainless steel plates.…”

Section: Introductionmentioning

confidence: 99%

Thermal and Residual Stress Distributions in Inconel 625 Butt‐Welded Plates: Simulation and Experimental Validation

Vemanaboina

Gundabattini

Kumar

et al. 2021

Advances in Materials Science and Engineering

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Thermal and residual stress distributions induced by the gas tungsten arc welding (GTAW) process on Inconel 625 were studied using numerical simulation and experiments. A multi-pass welding model was developed that uses a volumetric heat source. Thermomechanical analysis is carried out to assess the Thermal and residual stress distributions. Experiments were carried out with 5 mm thick Inconel 625 plates. X-ray diffraction techniques were used to measure residual stresses, and IR thermometry was employed to capture the temperature values on the welded joints. Simulations were performed with ANSYS numerical code, and a close agreement was found between the predicted and experimentally measured residual stress. Thermal measurements were collected pass by pass from the analysis, and the agreement was 9.08%. The agreement between the measured and analysed residual stress was 11%.

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“…3Cr12 ferritik paslanmaz çeliklerin kaynaklı birleştirme işlemleri kapsamında yapılan çalışmalar araştırılmıştır. Kamble ve Rao'nun yaptığı çalışmada [19], kaynak gerilimi, kaynak hızı, tel besleme hızı ve gaz akış hızı dikkate alınarak 3Cr12 çeliğinin kaynağı için gaz metal ark kaynağı işlemi kullanılmış ve yükseklik, genişlik ve penetrasyon gibi geometrileri ile çekme mukavemeti ve sertlik gibi mekanik özellikler belirlenmiştir. Madyira ve arkadaşlarının yaptığı çalışmada metal transfer modlarının kaynaklı 3Cr12 paslanmaz çeliğin mekanik özellikleri üzerindeki etkisi araştırılmıştır [20].…”

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Investigation of the Effect of Additional Wire Type on Microstructure and Mechanical Properties in Joining 3Cr12 Ferritic Stainless Steels with Gas Metal Arc Welding

ÇETİNKAYA,

TAŞÇI,

ADA

2023

Politeknik Dergisi

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3Cr12 ferritik paslanmaz çelikler, yapı çelikleri ile östenitik paslanmaz çelikler arasında bir korozyon direnci performansı sergilemekte olup, yapı çeliklerine yakın mekanik özellikleri ile bilinmektedir. Bu çalışmada farklı ilave teller ile birleştirilen 3Cr12 ferritik paslanmaz çelik malzemelerin kaynaklı birleştirme performansı araştırılmıştır. Çalışmada ilave tel olarak ER308LSi, ER309LSi ve ER316LSi kaynak telleri kullanılarak gaz metal ark kaynağı yöntemi ile birleştirilmiştir. Birleştirme işlemi sonrasında gerçekleştirilen görsel muayenede herhangi bir hata görülmemiştir. Birleştirmelerden alınan numunelerin yapısal karakterizasyonunu belirlemek için, numunelere makroyapı ve mikroyapı incelemeleri; mekanik karakterizasyonunu belirlemek için ise; çekme, sertlik ve eğme testleri uygulanmıştır. Makro incelemelerde; kaynak metali (KM) ve ısıdan etkilenen bölge (IEB) açıkça ayırt edilebilmektedir. Kaynak kalitesini ve mekanik özellikleri olumsuz etkileyebilecek boşluk, çatlak ve nüfuziyet eksikliği gibi hatalar görülmemiştir. Mikro incelemelerde ise KM ile ana metal arasındaki yapısal değişimler ile ergime - katılaşma çizgisi açıkça tespit edilmiştir. Çekme testlerinde, ER308LSi tel ile yapılan birleştirmenin % uzama, akma ve çekme mukavemeti değerlerinin diğer tellerle yapılan birleştirmelerden çok az seviyede daha iyi sonuçlar sergilemiştir. Sertlik testlerinde, ortalama sertlik değerleri yaklaşık olarak ana metalde 150 HV, IEB’de 300 HV, KM’de ise 190 HV ölçülmüştür. Eğme testlerinde ise kaynaklı birleştirmelerin, yaklaşık olarak malzeme kadar süneklik sergilediği tespit edilmiştir.

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Effects of process parameters and thermo-mechanical simulation of GMAW process for welding of 3Cr12 steel

Cited by 4 publications

References 15 publications

Optimization of Bobbin Tool Friction Stir Processing Parameters of AA1050 Using Response Surface Methodology

Optimization of Bobbin Tool Friction Stir Processing Parameters of AA1050 Using Response Surface Methodology

Thermal and Residual Stress Distributions in Inconel 625 Butt‐Welded Plates: Simulation and Experimental Validation

Investigation of the Effect of Additional Wire Type on Microstructure and Mechanical Properties in Joining 3Cr12 Ferritic Stainless Steels with Gas Metal Arc Welding

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