With larger blade and with blades where a strong joint is needed you will braze. Too much heat, taking too long to get silver braze to melt will cause flux to get used up dissolving oxides and go black and no longer work and also more time for blade to expand and the overlap joint to slip over it self getting a thicker joint with possible thin spots on both sides after grinding back. File or grind the blob of solder off flush with the surface of the blade and flat off the blade edges to allow smooth running of the blade through the saw guides.
To solder the blades, you will need silver solder and flux. “You will need to know the finished length of blade that works on your saw. To get the measurement either check the owners manual or take a used blade and cut it to measure. I add 1/8” to the total length to allow for the solder joint. Let the blade cool in the fixture and grind the face of the blade smooth.
I read several message board threads about silver soldering blades, but am left with a few questions. Then someone invented the electric butt welder, which became the normal way of joining blades in industry, whether by the blade makers or by welders attached to a saw. All bandsaw blades were carbon steel back in the early days.
04-10-2006, 9:26 AM #1 brazing bandsaw blades I read a post about needing to get a bandsaw blade welded. I thought I’d post about how I braze my own blades for my metal bandsaw. 04-10-2006, 10:26 PM #9 Blade Brazing Woodcraft carries a kit to braze blades, which includes holder, silver soider, and flux.
how to braze bandsaw blades Related Question:
How do you anneal a bandsaw blade?
To anneal, I always shade the weld with my hands to keep the weld darkeded from the ambient light. Gradually heat the weld by pumping the anneal button untill the weld turns cherry red (not orange or yellow) then slowly cool the weld. Remove and test the weld buy bending the blade to a 8″ or 10″ radius.
Can you fix a bent bandsaw blade?
How to straighten a bandsaw blade? It is risky but if it’s absolutely necessary, a temporary fix to straighten a bandsaw blade can be done by placing it on an anvil and gently tapping it flat with a nylon head hammer/mallet or using a pair of gas pliers to straighten out the blade.
Can you arc weld bandsaw blades?
Luckily for you, though – a broken bandsaw blade doesn’t have to be the end of your work. What is this? You can simply weld the bandsaw blade back into shape. Through this article, we’ll explain exactly how you can do that, as well as the importance of doing so when necessary.
Should bandsaw blade twist?
Typical bandsaw blades can be flipped “inside out” to make the teeth point the other direction. On some knife edge style blades and grit edge blades you can get a fresh sharp cutting edge from a blade this way, just by flipping it inside out.
Does welding melt metal?
Joining Metals As opposed to brazing and soldering, which do not melt the base metal, welding is a high heat process which melts the base material. Typically with the addition of a filler material.
What is a blade welder?
The T27555 Blade Welder can cut, weld, anneal, and grind bandsaw blades. This allows you to make new blades from bulk coils of band stock. Quickly rejoin a blade that has been purposely cut for making an internal contour cut. Repair broken blades that are still sharp and useful.