Greg
In my experience green woods do not dull the edge faster than dry ones with
a couple of notable exceptions. (I am turning mostly woods domestic to Nova
Scotia) Cedar and juniper family trees will have sap that will dull a blade
faster than even hard maple. The sawyers here use special mills to cut dedar
boards, special because they do not mind sharpening saws. The other
exception comes from most of the green wood I turn still having the bark on
and it often has abrasive dust from the felling and sometimes from the
environment. Once the bark has been removed the edges last longer.

--
God bless and safe turning
Darrell Feltmate
Truro, NS Canada
http://aroundthewoods.com
http://roundopinions.blogspot.com

"Greg Lyman" wrote in message
news
Anyone have opinions about why green wood dulls gouges (M2, M4, and Kryo
M2) and band saw blades so fast relative to the same wood dry? One would
think that the water would cool and lubricate the cut versus dry wood, but
still it appears as if tools dull much faster. I work mostly with English
Walnut, "Black" Walnut root burl and Western Maple. Perhaps having a
scary-sharp edge is just more critical to sever the wet fibers...I don't
know. Do you?

This group has never been short of people with opinions (albeit some more
reasoned than others) so I thought I'd ask to see if anyone has a
reasonable explanation.