Understand The Basics Of Band Saw Blades

Band saw blades are one of the most commonly used tools when it comes to wood cutting

. The band saw, like the scroll saw, is used primarily for cutting curved or shaping pieces of wood. Use of the miter gauge or tilting of the work table adds versatility and flexibility to this task of using a band saw.

Another important function of a band saw is its ability to resaw or rip narrow pieces of wood. Using a band saw for this function is safer than with a table saw.

The work table is slotted for use with a Miter Gauge that increases the accuracy of straight cuts. Because the table also tilts, the band saw will do ripping and crosscutting at angles of up to 45 degrees.

A blade used for the band saw is a narrow metal strip, with sharp cutting teeth along one edge. The band saw runs around two large motorized pulleys or wheels that are mounted on a frame.

Blades are available with various sizes of teeth. The number of teeth a blade should increase the harder the material you are working with is.

Keep in mind that regardless of the manufacturer all saw blades need to be broken in. New blades are considered too sharp.

If you cut with these sharp blades they can cause fracturing of the outer edges of the cut material. Premature blade failure can result when the blades are not properly broken in.

It is important to take care of the teeth on your blade. Once a single tooth chips or strips, it puts more stress on the other teeth, and can eventually lead to premature blade failure.

When breaking in a new blade the speed of the blade during the first few uses should be slower in order to help dull the new blades before use on real materials. Most machines have a blade speed control that can be varied easily to best suit the materials being cut.

There are many different types of metals used in making this type of blade. The most commonly used steels are mixtures of different metals.

When a metal is made of a mixture of metals it is called an alloy. Metals are mixed to try to make the strongest material from a combination of notable metals.

Researchers are always trying to improve saw blades. One way they are trying to do this is to increase the prestress the metal can handle.

Prestress is applying force to the saw blade to condition it to withstand its working load more effectively. The enhancement of the prestress improves the cutting accuracy of the blade, but at the same time it also increases the possibility of a fatigue break.

These blades are very useful tools. Following a few tips can keep your saw blade in good working order longer.

It can also improve the quality of your cuts. When using these blades, always be aware of safety precautions.

by: Jack Landry

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