Flat grinding platen

M

miden

Joined
Sep 9, 2005
Messages
835
Hi Guys, could you please advise which would be the more wear resistant steel for the back plate on a platen? I have some 01 and some A2.

Thanks
 
Devin,
What kind of heat treat would you suggest?

What do you think of AR500 as a platen?

Thanks
Steve Hostetler
 
I have use both A2 and O1 and they worked great. I now use a pyro glass platen and it works better then either of them
 
I've been using a AS quenched O1 platen, 15 mm thick, for some years now. It hasn't dished out yet.
 
AR500 isn't as wear resistant as the various tool steels. It's "wear resistant" in relation to structural steels. It would work as a platen, better than 1018 or whatever welding steel you get but not as long as tool steel.
 
miden said:
Hi Guys, could you please advise which would be the more wear resistant steel for the back plate on a platen? I have some 01 and some A2.

Thanks
Click to expand...
Find some broken HSS circular saw and cut piece in dimension you need. It will out last every regular steel . . . .
 
I use ceramic tile from the home improvement stores.
It is cheap and doesn't conduct heat like steel.
I typically get 6 to 8 months out of one before it starts to dish.
Been using tiles for several years now.
 
Big Chris said:
I use ceramic tile from the home improvement stores.
It is cheap and doesn't conduct heat like steel.
I typically get 6 to 8 months out of one before it starts to dish.
Been using tiles for several years now.
Click to expand...

Floor tile?

Hoss
 
There are more ideas than I could have wished for. Great variety of options, and all good!
Thank you very much Gentlemen, may the coming year be a good one for all of you.

Mike
 
Big Chris said:
I use ceramic tile from the home improvement stores.
It is cheap and doesn't conduct heat like steel.
I typically get 6 to 8 months out of one before it starts to dish.
Been using tiles for several years now.
Click to expand...

How do you attach it to the platen?
 
Bob Duguay said:
How do you attach it to the platen?
Click to expand...
USA sells precut fireplace glass. There are other suppliers available in BF posts as well. You just epoxy it to the steel platen. Amazing at conducting heat. The platen stays cool to the touch regardless of how long I grind or how much pressure I use. As I recall it cost about $30. But I have seen pairs available for $24. Frank Niro invented this in like 1990.
 
Bob Duguay said:
How do you attach it to the platen?
Click to expand...
I've found that using 3M double sided tape Heavy Duty Strength is good. You need to have a small lip or shelf on the bottom of the steel platen to keep the glass from being pulled down and off. I drilled a couple 3/32 pin holes and ground them flush with the bottom of the glass. The nice part about the tape vs JB Weld is that you can use a heat gun to soften the tape and it pulls off easy no grinding left over epoxy or JB Weld.
 
Any local glass shop should sell pyroceram/neoceram for $10-15 for a platten sized piece. I epoxy it on. Warming it slightly with a torch will make the epoxy fail. The platten will come off, and the remaining epoxy will be soft enough to effortlessly scrape off with a razor blade. Frank Niro uses the double sided tape.

For what its worth, although a shelf won't hurt anything, Frank has never used one and never had a problem in the 20-30 years he's done it. Its a good idea, but not necessary
 
You must log in or register to reply here.
Back
Top