Jan 8 2018 – Meeting Agenda Sharpening

 Sharpening with Presenters:  Bob Seigel, Alan Becker, John Cobb, Derek Roff, Dave Wahl and You
Sharpening gouges and scrapers involves (1) a dull tool and (2) some abrasive surface that will remove metal from the tool.  When we see a ragged surface on a piece we are turning, we frequently say to ourselves “I need to go sharpen this gouge.”  But do we really need to sharpen the tool if it doesn’t do what we want it to do?  What does sharpening mean? And what are the differences between dressing, grinding, shaping, honing, and lapping when you want to sharpen your tool?

Well our presenters will have something to say about these things, and all of us are supposed to chime in too!
We talk about dressing a grinding wheel to return it to its original round shape & clean away clogged areas to expose a fresh cutting surface.  We usually sharpen a tool on a stone or diamond surface to create or refine a sharp edge of appropriate shape.  Honing is done with a stone or diamond surface to improve and refine the form and edge of the tool after it has been sharpened.  And lapping the tool on a belt or fiber with a compound will refine the edge of the tool even more.

An old  Kentucky woodturner, Rude Osolnik, always had a curved and flat honing stone in his shirt vest pocket, and during an hour long demonstration he would very frequently hone the tool he was using, and he never went to the grinder.
Advertisements

Single Post Navigation

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

w

Connecting to %s

%d bloggers like this: