Bright yellow (Incandescent) heat and rollers.

Regards Ian.

^^^^ This.

If it has bumps and curves in it, the metal will have been stretched. To get it back flat again you would need to shrink the metal back to original size. Stainlness, being a mongrel to work, due to its tendency to work harden, will resist this process. Not worth the vig.

Hi Dave

Take out your trusty joiners plane and take a shaving off the door – then you won't need to kick it to get it open and you can use your piece of stainless steel for something more creative!

Norman

I dont think Dave needs the plate so as to be able to kick the door open. I,ve seen these plates on many garage doors,they appear to be there to protect the bottom of the doors from——What?

I have never managed to flatten any piece of thin strip,so I,m listening !.

Good clout with a hammer should do the job (with a dolly if we're being dainty), As well as a little manual compression. I wouldn't bother trying to make a jig or machine to do it. I even use my own bench vice and soft jaws to neaten things out.

If anything when you fix the plate to the door that should have some kind of straightening out of it's own provided you can get it relatively even and straight.

The only time you've got to worry is when the stainless is 304, because it's a pig. 316 or 303 are easier to work with.

Any residue marks that remain will just have to be rubbed off manually, if it's bothersome. 

Michael W

Edited By Michael-w on 20/07/2017 18:49:33

Hi Dave,

Like I said,your posts are always interesting.I wonder how a band saw would cope with s/s?. I have used my wood band saw to cut mild steel sheet,with a metal cutting blade but it,s too slow. Never knew there were so many different grades of stainless. I have a few bits of it,no idea what they are,just that they are hard to cut and harder to drill. Think I,ll just give it a miss,life is too short !

I would second Duncans suggestion. I have been doing quite a lot of stainless for the cladding and funnel of my steam launch boiler and have been using 1mm discs that Bosch sell in a round tin. The tin is also useful afterwards for storing small items! I don't know what grade the stainless is it came from the scrappy but it is about a millimeter thick. Rolling it to form the funnel was a bit of a mission, and I also had to make a transition piece at the bottom from round to rectangular, which was a good exercise for 3D CAD.

John