The invention provides an assembling and
welding device and an overall assembling and high-energy beam
welding method for scalloped segment parts of a large-size
titanium alloy spray
pipe, and aims to solve the problems that in an existing
welding and assembling method for the large-size
titanium alloy spray
pipe, due to the fact that all scalloped segment parts are sequentially assembled and welded, welding accumulated deformation exists; therefore, when the last two scalloped
petal parts of the large-size
titanium alloy spray
pipe are closed, the opposite seam gap is difficult to meet the high-energy beam welding requirement, and the welding quality is difficult to guarantee. According to the overall assembling and high-energy beam welding method for the large-size
titanium alloy spray pipe scalloped segment parts, a special assembling and welding device is designed, and it can be guaranteed that the butt seam gap and the wall staggering amount between the
titanium alloy spray pipe scalloped segment parts are both within 0.1 mm; precise
assembly is guaranteed, meanwhile, one-time overall welding of all scalloped segment parts of the large-size
titanium alloy spray pipe is achieved without tire dismounting,
welding deformation caused by multiple times of
assembly and welding is avoided, then the welding quality of welding seams is guaranteed, and the
assembly and welding efficiency is improved.