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Tooling Suitable For Hard Metals
Posted: Wed 04 Apr , 2007 10:21 am
by Mark.T
The item in question is the door frame component of a Yale type lock and we want to grind one of the faces down a couple of mm.
We are aware that we will need to take very small bites at a time and move slowly but for a hard metal like this, what would be a suitable machine tool?
Best Wishes
Mark Townsend
Posted: Wed 04 Apr , 2007 11:32 am
by Steve
WHAT TYPE OF METAL IS THE LOCK MADE OF?
DO YOU ALREADY HAVE A MACHINE?
TRY FILING THE METAL, IF IT WILL FILE AWAY THEN YOU COULD USE STANDARD MILLING CUTTERS.
IF YOU HAVE A GRINDER THIS MAY ALSO BE AN OPTION.
Tooling Suitable For Hard Metals
Posted: Wed 04 Apr , 2007 13:12 pm
by Mark.T
> WHAT TYPE OF METAL IS THE LOCK MADE OF?
We do not know but as it is part of a lock mechanism, we are assumming that it is quite hard.
> DO YOU ALREADY HAVE A MACHINE?
Yes
> TRY FILING THE METAL, IF IT WILL FILE AWAY THEN YOU COULD USE STANDARD MILLING CUTTERS.
The surface is an interior surface with insufficient clearance for filing but we could probably get enough room to do a test filing. Good idea.
> IF YOU HAVE A GRINDER THIS MAY ALSO BE AN OPTION.
Not an option on this face with limited acccess.
Best Wishes
Mark Townsend
Posted: Thu 05 Apr , 2007 8:23 am
by Steve
What machine do you have?
If the lock is steel or cast iron then a medium spindle speed would be best with a shallow depth of cut and a feedrate the machine sounds comfortable with. Try programming 400mm/min and use the Feed override to get a good result.
If Aluminium run the spindle flat out and again use the override to work out the best feed.
Tooling Suitable For Hard Metals
Posted: Thu 05 Apr , 2007 10:25 am
by Mark.T
> What machine do you have?
Good question!
> If the lock is steel or cast iron then a medium spindle speed would be best with a shallow depth of cut and a feedrate the machine sounds comfortable with. Try programming 400mm/min and use the Feed override to get a good result.
> If Aluminium run the spindle flat out and again use the override to work out the best feed.
I think it is time for a few tests and these are a great start. Many thanks.
Best Wishes
Mark Townsend
0845 458 1001
07968 125075
Posted: Thu 05 Apr , 2007 12:57 pm
by Steve
What machine do you have?
I guess from your reply not a Denford
Keep us informed.
Everyone is welcome on the forum!
Tooling Suitable For Hard Metals
Posted: Thu 05 Apr , 2007 13:49 pm
by Mark.T
>> What machine do you have?
> I guess from your reply not a Denford Embarassed
It IS a Denford, I just do not know which model.
> Keep us informed.
I will.
Best Wishes
Mark