In principle yes it could be jigged up and welded, but how easy would that be to organise ( do you know any good welders who would do it for a beer or two?)
Was it wind damage in the recent gales that did it or is it just not man enough for the dish you have on the end of it. Just wondered cos it almost certainly will happen again if that is the case.
With the price of actuators at the moment you are probably best off biting the bullet and replacing it at least when the wind does blow a bit, your dish won't flap about and wreck itself.
(sorry for the doom and gloom)
good luck
L