Tooth Form The shape of the tooth’s cutting edge affects how efficiently the blade can cut through a piece of material while considering such factors as blade life, noise level, smoothness of cut and chip carr ying capacity. 4 G U I D E TO B A N D SAW I N G TPI For maximum cutting efficiency and lowest cost per cut, it is important to select a blade with the right number of teeth per inch for the material you are cutting. 32 G U I D E TO B A N D SAW I N G GLOSSARY OF BAND SAWING TERMS DISTANCE OF CUT The distance the blade travels from the point it enters the work to the point where the material is completely cut through.
You must select the correct Teeth Per Inch for the thickness of material you are cutting. That’s why Dakin-Flathers have created this useful bandsaw teeth per inch chart. Use the bandsaw teeth per inch chart below to select the optimum TPI for your project needs.
To achieve a smoother, more refined cut choose a blade that has more TPI. High TPI configurations should be used on thinner materials and may require a reduced material feed rate through the blade. Thicker materials require a low TPI blade, but may be fed through the blade at a higher feed rate. A regular tooth blade is available in higher TPI blades and produces smoother cuts in all woods.
The TPI of a bandsaw blade is usually listed within the product specifications that come with a new blade. Always begin the TPI measurement in the center of the gullet. Measure left to right one inch along blade, from the center of the gullet.
The wider the blade, the stronger the beam strength; therefore, a 1″ blade has far greater beam strength than a 1/8″ blade and will cut straighter and is more suitable for resawing. BLADE BACK- The back of the blade that runs on the back blade guide. BLADE MAINTENANCE- There is not very much that needs to be maintained on the blade, but below are a few points that will help you keep your blade in peak cutting performance.
These smooth cuts come at the price of speed since blades with many teeth achieve their fine finish by cutting slowly. At the same feed speed, a fine-tooth blade with a high TPI count is bringing more teeth to bear on the cut, which means that each tooth is responsible for cutting a smaller amount of wood. The 1/2-inch, 3/4-inch and 1-inch blades should be 3 TPI blades, while the thinner blades should have a greater number of teeth per inch.
Band saw tooth size is determined by the size and type of material to be cut and the desired finish. Find material dimensions on bottom of chart and move up for appropriate teeth per inch. In general the following rule applies to choosing the speed of your band saw blade: The harder the material, the slower the speed; conversely, the softer the material, the faster the speed.
what is tpi bandsaw blade Related Question:
Is more TPI better?
Woodworkers quickly learn that the number of teeth-per-inch (TPI) on the blade has a big impact on the quality of a cut. The general rule of thumb is “the more TPI, the smoother the cut.” The true answer, however, is just a little more complicated than that, as you’ll learn once you understand how saw teeth work.
How many TPI does a bandsaw blade need?
For general wood cutting duties in typical 3/4″ material, use a 4 TPI blade for coarse, fast cutting and a 14 TPI blade for slower, smoother cutting. A blade in the 6 to 8 TPI range provides good general-purpose performance.
What TPI is best for cutting wood?
If you’re looking to cut wood or other soft materials, you’ll need a blade with a TPI of 6 up to 20. For harder materials like metal, a TPI between 14 up to 36 is more suitable. The number of teeth can be found on the blade.
What TPI is best?
Teeth-Per-Inch (TPI) Blades in the 3 – 11 TPI range are typically best for wood and demolition work. Pruning blades tend to be at the low end, and demolition/nail-eating blades tend to be around 8-11 TPI. General purpose wood cutting blades are in the middle, often around 6 TPI, and can also cut nails.