What specific process gases have been found to improve weldability and under what conditions?
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Specific process gases that have been found to improve weldability include activated fluxes and associated activated tungsten inert gas (TIG) welding . In laser welding of austenitic stainless steels, shielding gases have been shown to improve the mechanical properties of the welds, suppress plasma plumes, and stabilize the keyhole . The addition of surface-active elements to the shielding gas can alter the behavior of the molten pool . The pulsed plasma gas in variable polarity plasma arc welding (VPPAW) has been found to improve the stability and quality of the welding process, enhancing the fluidity of the molten pool and reducing porosity . Different combinations of shielding gas mixtures have been developed to optimize weld joint properties and welding process efficiency, with the ability to closely monitor the shielding gas blend and reduce waste providing cost savings .
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55 Citations | The paper mentions that the addition of O2 and CO2 to argon has been found to improve weld bead profile, but equivalent values were not reached with high helium share gases. |
| The specific process gases that have been found to improve weldability are not mentioned in the provided paper. | |
1 Citations | The specific process gases that have been found to improve weldability are not mentioned in the paper. The paper discusses the potential of shielding gases in improving mechanical properties, suppressing plasma plumes, and stabilizing the keyhole in laser-welded austenitic stainless steel. |
7 Citations | The specific process gases that have been found to improve weldability are not mentioned in the paper. The paper is about enhancing the gas tungsten arc welding process using hydrogen-induced shielding. |
| The specific process gases that improve weldability and the conditions under which they are used are not mentioned in the provided paper. |
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