This is the continuation of our blog series on how to choose the right bandsaw blade.
6. Blade Properties
The property of the blade should also be considered based on the cutting that is performed.
Blade width is measured from the tip of the teeth to the back edge of the blade body. Make sure to use the widest blade your machine can accommodate except for cutting contours.
Tooth rake is the angle formed by the tooth face and a line perpendicular to the back of the blade.
7. Tooth Type
Bandsaw blades are also available in different tooth shapes and each has their own characteristics.
Regular tooth is a straight faced tooth with deep gullets to rake out chips. It is usually used for general metal cutting with a straight (zero) rake.
Hook tooth is equipped with deep gullets and widely space teeth with a 10-degree undercut face that helps to dig in and take a good cut. This type of bandsaw is good for cutting non ferrous materials, non-metallic, plastics and wood.
Skip tooth. Similar to the hook tooth but characterized by a straight 90-degree tooth and a sharp angle at the junction of the tooth and gullet to break up chips, this type is best-suited for soft, nonferrous metals, plastics, and wood.
8. Avoid Tooth Stripping
Tooth stripping is one of the problems when it comes to band sawing. This is usually caused by overload of force and caused by repeated impacts with material especially when cutting structural shapes and bundles.
9. Blade Pitch
The blade pitch is the distance between one tooth tip to the next. When cutting thin sections of the material requires a finer pitch and thicker section requires a coarse pitch. There are two kinds of pitch namely constant pitch blade and variable pitch blade.
Other things to remember:
One must check the equipment before going through the cutting process. A well-maintained and vibration free equipment will ensure the blade’s accuracy and long life.
Operators should be able to undergo training to ensure that their skills can keep up with the fast growing industry. One must possess skill in maintenance, cutting techniques, basic troubleshooting and more.
Heat due to friction is the number one cause that makes blades dull and even destroyed. Make sure the equip your machine proper coolant to improve the cut of your bandsaw blade.