I've a question about bandsaw blade life.
I use premium bimetal 18 tpi 1/2" wide blades on my 2-speed Delta 14"
bandsaw. These puppies aren't cheap; about $40 a pop, and they seem to
wear out after an unusually short life.
I'm cutting mainly carbon or stainless steels; annealed 1095, ATS-34,
etc. 1/8" to 3/16" thick, titanium up to 1/8" thick, and some other
softer (bronze, nickel silver, e.g.) metals up to 1/2" thick.
I've tried running at both slow and high speeds with no noticeable
difference in blade life. No coolant (not set up for it). A new blade
will slice through the first inch or two of any of the above materials
almost effortlessly, then bog down and cut much slower. After a few
cuts it seems to be mainly friction cutting, leaving hellacious burrs
on the bottom of the piece.
Generally, I can cut a maximum of half dozen blade blanks for my knives
before having to mount a new blade. I contend the blades should last
much longer than this.
What am I doing wrong?
- posted 17 years ago