Cold metal transfer welding of AA1050 aluminum thin sheets

İrizalp, Alaattin Ozan; Durmuş, Hülya; Yüksel, Nilay; Türkmen, İlyas

doi:10.1590/s1517-707620160003.0059

Cited by 12 publications

(6 citation statements)

References 17 publications

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“…Direct current electrode negative (DCEN) results in thicker welds with an unstable arc and frequent arc outages. THI has a substantial influence on the weldment (WM) properties, and it has a huge consequence for the cooling rate of the WM [1]. It can be computed from the equation given below [25].…”

Section: Methodsmentioning

confidence: 99%

“…metal inert gas (MIG). As the word suggests, 'cold' refers to fusion welding technique only, but it has a very low 'thermal heat input' (THI) with negligible distortion due to nonzero current at the time of short circuiting [1]. The main innovation in CMT is in its wire movement assimilation.…”

Section: Introductionmentioning

confidence: 99%

“…It is explained that naval surface ships with considerably less hull distortion reduce hydrodynamic drag, speed and fuel efficiency. I ˙rizalp et al [1] investigated the welding parameters by CMT method and mechanical behaviour of 2-mm-thick AA1050 sheet. Results exhibited the highest tensile strength and microhardness due to minimum heat input.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

CMT Joining of AA6061-T6 and AA6082-T6 and Examining Mechanical Properties and Microstructural Characterization

Koli

Yuvaraj

Aravindan

et al. 2021

Trans Indian Inst Met

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Nowadays, CMT is used for joining dissimilar thickness of dissimilar metals for achieving higher mechanical strength by using properties of both the metals. Joining of dissimilar aluminium alloys with dissimilar thickness by using gas metal arc welding with cold metal transfer (GMAW-CMT) process, is the primary objective of this work. CMT butt joining of 6061-T6 (3.18 mm) and 6082-T6 (2 mm) aluminium alloys was carried out by using ER4043 (Al-5%Si) wire. Mechanical properties and microstructural characterization were carried out for the weld bead. Microstructural examination at different weld zones is studied using optical microscope and field emission scanning electron microscope (FESEM). Macrostructural images were captured to study the weld bead geometry in relation to heat input. Mechanical properties were examined by Vicker's microhardness and tensile test (with reinforcement, that is, the actual profile of the bead and without reinforcement, that is, the profile of bead are flattened to the surface of the plate). The residual stresses were measured using high-resolution X-ray diffraction (HR-XRD) method. Results showed significant changes in mechanical properties when heat input was in the range of 120-130 J/mm. Removal of reinforcement height improved almost 7-11% of tensile strength. Compressive residual stresses were experienced in the weldment. Comparatively cold metal transfer (CMT) showed better residual stress results than metal inert gas (MIG) welding at the same heat input.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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CMT Joining of AA6061-T6 and AA6082-T6 and Examining Mechanical Properties and Microstructural Characterization

Koli

Yuvaraj

Aravindan

et al. 2021

Trans Indian Inst Met

View full text Add to dashboard Cite

show abstract

“…Currently, research in different industries is directed towards the reduction of CO 2 emissions. The combination of heterogeneous materials is necessary to reduce the weight of the structures and CO 2 emissions [7][8][9]. Engineers are increasingly looking to join different material types ensuring good mechanical strength, corrosion resistance, and sealing function [10,11].…”

Section: Introductionmentioning

confidence: 99%

Regression Modeling and Process Analysis of Resistance Spot Welding on Dissimilar Steel Sheets

Ternane

Benachour

Sebaa

et al. 2022

Eng. Technol. Appl. Sci. Res.

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The resistance spot welding process is used to weld dissimilar materials. Dissimilar joining is formed by two 2mm thick sheet metals of 304L austenitic stainless steel and galvanized steel. This study investigates the effects of welding parameters such as welding current, welding time, and welding force. The welding time and the welding force were, respectively, in the range of 10-13 cycles and 7-8bar, while the welding current was in the range of 10–16kA. Tensile tests were applied to determine the resistance parameters of dissimilar joining. The experimental results showed that increasing the welding current increased the tensile shear stress of the weld coupon. Regression analysis was carried out to determine the significance of the process parameters by using the coupled of the full factorial experimental design with statistical and graphical analysis of the results. Furthermore, analysis of variance was used to determine the optimal parameters and combinations to achieve the highest strength level.

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“…Since the arc is always short and the average current level is low, the amount of energy (heat) transferred to the part is usually very small. The CMT Õ version of GMAW has been widely and effectively exploited for thin sheet 12,13 and dissimilar metal joining [14][15][16] and for additive manufacturing. [17][18][19] In the case of dissimilar metal joining, it is possible to observe that the process is capable of forming robust joints without causing extensive melting of the higher-melting-point material, but it is adequately capable of melting the other material, which has a lower melting point, and of course, also the electrodewire.…”

Section: Introductionmentioning

confidence: 99%

Metal matrix composite material reinforced with metal wire and produced with gas metal arc welding

Moreira

Kovalenko

Souza

et al. 2019

Journal of Composite Materials

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In the search for high-performance parts and structures, especially for the aviation and aerospace industry, metal matrix composites appear with prominence. However, despite exhibiting high levels of mechanical properties and low densities, these materials are still very expensive, mainly due to complex production. Thus, this work aims to present and evaluate a novel way of manufacturing metal matrix composites, with relative low cost and complexity: by using low-energy fusion welding to deposit the matrix material on top of continuous metal wire reinforcement. For proof of concept, Al alloy was used as matrix material, a single Ti alloy wire as reinforcement, and gas metal arc welding CMT-Pulse® as the process for material deposition. The simplified Al–Ti composite was evaluated in terms of impact resistance and tensile strength and stiffness. Overall, the mechanical performance of the composite was around 23% higher than that of the matrix material itself (Al), this with only about 2% of reinforcement volume and just over 3% of increase in weight. Analyses of the Al–Ti composite fractures and cross-sections and of chemical composition and hardness of the matrix–reinforcement transition interface indicated the preservation (no melting) of the Ti wire and the existence of a fine contour of bonding between matrix and reinforcement. At the end, a brief discussion on the dynamics of the wire reinforcement preservation is carried out based on high-speed filming.

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Cold metal transfer welding of AA1050 aluminum thin sheets

Cited by 12 publications

References 17 publications

CMT Joining of AA6061-T6 and AA6082-T6 and Examining Mechanical Properties and Microstructural Characterization

CMT Joining of AA6061-T6 and AA6082-T6 and Examining Mechanical Properties and Microstructural Characterization

Regression Modeling and Process Analysis of Resistance Spot Welding on Dissimilar Steel Sheets

Metal matrix composite material reinforced with metal wire and produced with gas metal arc welding

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