On a machine with screw over spring tensioning, the most common on smaller machines, only really dependable way to set the blade tension is with a blade tension gauge. The machine manufacturer will provide a chart showing how much blade force is generated by any air pressure, and the blade tension in typical blade sizes. Over tightening the blade will shorten the life of the blade wheel rubber, bearings, and blade.
In this study, a mathematical model of tangential tensioning stress in the edge of a circular saw blade tensioned by multi-spot pressure was established by theoretical analysis for the quality control of circular saw blades. The tangential tensioning stress in the edge of circular saw blades tensioned by multi-spot pressure is the key factor that describes the tensioning effect and determines the quality of the saw blade. The mathematical model for the tangential tensioning stress on the edge of the circular saw blade tensioned by multi-spot pressure establishes a theoretical foundation for the multi-spot pressure tensioning process of circular saw blades.
tensioning a saw blade Related Question:
What is saw tensioning?
The process of straightening is called “levelling”, while the intentional introduction of internal stress is called “tensioning”. In practice, these two effects cannot be considered apart from each other. As soon as a distorted saw is slightly straightened, internal stresses are set up, .
How much tension should there be on a bandsaw blade?
For carbon steel toothed blades (cutting blades) this is typically 15,000 to 25,000 PSI. Slitting type blades typically are tensioned in the range of 12,000 to 20,000 PSI. In general bandsaw blades are never tensioned past 35,000 psi.
What causes bandsaw blade drift?
Drift is cause because the blade buckles under the load. You can see that by stretching a ribbon between 2 points and applying a pressure to one of the edges, it will turn sideway easily. A sharp blade and high blade speed will help a lot with that.
Why does my bandsaw blade wobble?
The blade on a saw left idle for long periods of time can leave an impression in the rubber tire which might cause erratic tracking. Purchase and install aftermarket replacement tires. (Search for “bandsaw tire” at woodcraft.com.) If you still see a back-and-forth motion, the culprit is probably the wheel itself.
How much tension should a hacksaw have?
I would endorse the ‘finger tight plus three turns’ recommendation. It is important that the blade is taut. Also the angle of the saw when cutting is important, always use it by sloping the front end downwards, away from you, never upwards.
Why wont my circular saw cut straight?
What Causes a Circular Saw to Not Cut Straight. A faulty circular saw is likely to have issues such as an unstable blade or a warped blade edge. The problem could also be the way you operate the saw. If you do not operate the circular saw properly, it will not cut straight.
What can I do with old hand saws?
hang them on your garage or garden shed, or even decorate your work room. Sprinkle them with old saw dust for a full effect! Vintage hand saws with star shaped cut outs hang them on your garage or garden shed, or even decorate your work room.
Which way do the teeth go on a circular saw?
The teeth should be cutting UPWARDS, in a clock-wise direction. You’ll also notice that when your blade is installed correctly, the teeth will be pointing upward. Remember: circular saws (as most saws) cut on the upward stroke.
Why does my circular saw blade stop spinning?
The most common reason your circular saw blade stops spinning is because your workpiece is pinching the blade. This can also cause the blade to kickback. To prevent this from happening you need to support your workpiece properly to allow it to set securely through the entire cut.
What does a brake do on a circular saw?
Electric Brakes – An electric brake stops the motor in about two seconds after releasing the trigger, while a saw without an electric brake will take about 10 to 15 seconds to stop. The electric brake works by reversing the flow of electricity to the saw motor.