In this paper

through analysis the composition structure of curved beam in aluminum alloy high-speed EMU

a set of threesided turntable integrated welding tool equipment for end-wall curved beam was developed

to form a high-efficiency welding process for end-wall curved beam with rapid positioning and assembly features. Many process steps

the pre-weld positioning assemble

formal welding

setting of positioner

compactor and reverse deformation

are integrated together by our process. The end-wall bending beam does not need to be adjusted after welding

and its verticality

profile degree and flatness meet the design requirements. It reduces the operation space and the labor intensity in production

and effectively solved the production mode of small-size thin-plate work pieces

mass production and standardized operation for end-wall curved beams and arched beams

which greatly improves production efficiency and product quality.