Thank you jaroslav
I had another go this afternoon.
I just cut the flange off from the last attempt I posted and reused the metal just for practice,then tipped a flange again.
This time I used the bead roller for a few extra passes until the flange was about 60° and started forming tucks by itself.
Then as you recommended I heated the metal and used a round steel dolly and wooden mallet and tipped the flange the rest of the way.
This is the best result I've had so far.
As I said this was only for practice so I didn't take pictures during the process.but when I repeat this again on a new peice of steel will take few more pictures.
Thanks again for the helpful advice you've given me
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