"Gunner" wrote in message
...
On Sat, 26 Jan 2008 06:47:29 GMT, "Harold and Susan Vordos"
wrote:


"Don Foreman" wrote in message
. ..
On Fri, 25 Jan 2008 06:33:53 GMT, "Harold and Susan Vordos"
wrote:


"DoN. Nichols" wrote in message
...
snip-----

It depends on the tools.

Exactly.

Only a fool tries finish machining with negative rake inserts----that's
where you change to positive rake, diamond ground inserts. They're very
sharp and will easily take fine cuts------but never lose sight of the
fact
that some materials refuse to cooperate. Mild steel is one of the
worst
of
all materials when it comes to light cuts.

Harold

Would you except 12L10 or similar from this statement, Harold?

Absolutely. The leaded alloys don't behave at all like common low carbon
steel. If you've worked with materials like Stressproof or even 303 S or
Se, you likely know they cooperate much better, too.

Harold

However..its not great for welding.

Gunner

Not even recommended. That's pretty common for the majority of free
machining materials. What makes them free machining generally makes welding
difficult or impossible.

Harold