If you think of 45 degrees being one division. If you divide 45 by the number of divisions you have your angle. Half of the that is the angle from the height, which you reflect to define the are you you area going to remove. If you have a particular inner or outer radius you want there is a way of working that out you based on the number of division but i won't do your homework for you.
Use a pipe bender. if anything the distortion would stiffen the tube make it structurally sound. It may lack a squareness but you can make sure, you control the distortion, inwards. and the top at least will be fairly flat. You can heat it up, you are going to have similar kind of distortion and it will likely thin out the wall in places Sometime it is about what looks ok, not necessarily what look perfect. Unless the inner dimension matter, then you don't need a complicated solution.
How to Measure for bending
If you think of 45 degrees being one division. If you divide 45 by the number of divisions you have your angle. Half of the that is the angle from the height, which you reflect to define the are you you area going to remove.
If you have a particular inner or outer radius you want there is a way of working that out you based on the number of division but i won't do your homework for you.
@paulthomas8262 can you explain it's in a video plzz
Would that be a stronger way to do it?
Use a pipe bender. if anything the distortion would stiffen the tube make it structurally sound. It may lack a squareness but you can make sure, you control the distortion, inwards. and the top at least will be fairly flat.
You can heat it up, you are going to have similar kind of distortion and it will likely thin out the wall in places
Sometime it is about what looks ok, not necessarily what look perfect. Unless the inner dimension matter, then you don't need a complicated solution.