If you don’t have too much time on your hands, that’s completely fine, you can feel free to read our quick overview of how to weld bandsaw blades below. Why You’ll Need to Weld A Bandsaw Blade & How To Do So. Next up, we’ll discuss exactly when and why you’d need to weld a bandsaw blade, as well as step by step guide on how to do so. The Round-Up. Now that you’ve finished reading this article, you should have a fairly solid idea of how to weld a broken bandsaw blade, if you didn’t already.
The material in the middle of the clamp was removed to allow the join to be made without soldering the blade to the clamp. It means the finished blade length will be shorter than before but this should be well within the tension adjustment of the bandsaw. Once the blade has cooled, the braze should be filed to make it smooth and flush with the thickness of the blade.
The “Official” way to make bandsaw blades from coiled stock is resistance butt welding as performed by the kind of welder you find on the side of better contouring metal cutting bandsaws. My experience is the resistance welded band properly done is as strong as the parent band stock and if done really right no teeth are damaged in the weld zone. “My suggestion is to scout up someone with a band welder and coax or rent time on it. Once your get rolling you can cut, weld, temper, de-flash, and grind flush a saw band in a couple minutes, no more than five anyway. The typicasl band welder’s built-in grinder sucks. A fine grit parting wheel in a 4” angle grinder is my go-to band dressing tool.
Be/mqhsZl cseA. I know many of the bandsaw blades appear to be spot welded together and I don’t happen to own a spot welder by I have read of people who have solder the ends together with good results, so that is what I am going to try. From what I learned, the best way of getting the 2 ends together is with a “Lap” joint, which is where the 2 halves of the blade overlap, but instead of being square, I will need to grind the matching ends of the bandsaw blade in a bevel shape to help reduce the bulk that would happen when you overlap a could of bandsaw blades. I fired up my propane torch smeared an abundance of flux on the aligned bandsaw blades and just ran the flame through the joint until I could get the solder to melt at which time it flowed nicely between the 2 parts of the blade.
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.
how to join band saw blade Related Question:
Can you weld a broken band saw blade?
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.
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.
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.
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.
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.