702405.fig.004a
(a)
702405.fig.004b
(b)
702405.fig.004c
(c)
Figure 4: The torch with a trilling box (a), the stub pipe with a flange on a welding positioner filled with the argon root shield (b), and the tested pipe joint (c): T and B are the places where the titanium slips for the test pieces were cut out to take the tensile and bend tests.