Abstract
The article presents the results of the study of the influence of welding conditions on welding deformations of Ti samples. Welding using a non-consumable electrode in shielding gas was aimed at obtaining thin ribbed samples used in the aircraft building industry. The difficulty of welding a sheet with a stiffener is due to the occurrence of defects: changes in the surface geometry (angular deformations). The article aims to assess capability of controlling welding deformations using a tail heat sink due to local thermal tension for Ti alloy welded joints. The effect of welding conditions on the value of angular welding deformations of samples was determined. The best results were obtained for parts produced using a device designed by the author. The device combines gas protection of the cooling section of the welding joint and contributes to local thermal tension. The X-ray control did not identify internal defects in the joints produced by the standard method and the method using a tail heat sink. The tests showed that the use of a tail heat sink does not affect the structure and properties of welded joints made from the Ti-Al-Zn system alloy. The experiments proved the efficiency of the method for controlling welding deformations using a tail heat sink.
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