How can I make inside a LSAW pipe uniform and smooth?

Question

I am using a LSAW 16mm(OD) pipe, and I need to have a smooth and uniform surface inside it so a piston can reciprocate easily inside it. What is the best and fastest way to remove the inside weld line? It is going to be part of a production line, therefore, the speed of this process is very important.

Answer 1

In order to have an internal surface of sufficient surface finish for a piston to seal properly, the cylinder must be internally machined. Properly, it should be bored and honed. To speed up the process, it may be reamed and polished or perhaps burnished, depending on the sealing/pressure required, that may not be sufficient enough.