Band saw blades are replaced rather than sharpened. There is a tendency to incorporate this in all sorts of situations, which has led to the label “throw-away society.” This is not a compliment in my estimation. It is too often a commercial contrivance appealing to ease. Planer blades have gone this way in the benchtop 12″ models, which is too bad. But band saw blades seem to be an exception. Sharpening them would be impractical. But more importantly, the matter of metal fatigue from the flexing on each revolution limits the life of the blade itself.
What is possible is to break the dependence on made-up blades, and become independent with a simple method for silver brazing band saw stock in your shop.”
This project first appeared in Popular Woodworking, #169, June 2008.