Industrial pure titanium TA2 due to its excellent corrosion resistance is widely used in the water environment

in the actual production

pure titanium is mostly welded by TIG welding

but slow welding speed leads to low efficiency. The subject of the 0.9 mm TA2 laser welding research

first has carried on the orthogonal experiment of four factors and five levels. These four factors are laser power

welding speed

defocusing and laser incident angle

it is found that laser power and welding speed have the greatest influence on forming;then each factor is analyzed by single factor analysis

found that increasing laser power or decreasing welding speed can suppress the undercut

increasing the amount of positive defocus can reduce the back spatter

forward laser incident is easier to achieve penetration than backward incident.