Effect of Welding Parameters on Weldability of A6061 Aluminum Alloy/Q235 Mild Steel
The welding characteristics of A6061 aluminum alloy and low carbon steel were experimentally studied,and the microstructure and composition of the welding zone were analyzed.The effects of welding current and welding time on the weld core size and shear resistance of the welding zone were discussed.The results show that the welding is mainly carried out along the aluminum alloy,the melting of metal in the low carbon steel is not obvious,and the reaction layer at the interface of the aluminum alloy and low carbon steel shows some uneven phenomenon.Before and after welding,the phase of aluminum alloy and welding area is composed of Al and Mg2Al3,and the diffraction value fluctuates to a certain extent.The diameter of the weld core and the maximum shear resistance of the welding area both increase first and then decrease with the extension of welding time and welding current,and the turning point occurs when the welding time is 150 ms and the welding current is 25 kA.
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