Quote:
Originally Posted by Mel Ristau
I've been cutting light gauge metal sheet with a 24” DI-ACRO O’NEIL-Irwin shear for about 30 years. Cuts are no longer clean. The shear has been used a few times a year to cut .03 aluminum. Can't afford to have it professionally sharpened. Is there advice/info here on how to go about tuning/adjusting? Thanks!
https://www.dropbox.com/scl/fi/zsumq...1scneb2d2&dl=0 |
Knife shears have a "pinch" tolerance and cutting angles.
Where the blades bypass one another wear occurs.
With this size I would try a diamond "stone" making flat passes on the bypass surfaces - w/ light oil, and cleaning the surface and stone every so often.
After the faces clean up I would take a look at the narrow faces. -
-- Oh- just reminded myself that some blades have two cutting faces, so flipping blades may be good - IF not done prior?
