PROPERTIES

PRODUCT RANGE

HINTS ON WELDING

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PROPERTIES

BLADE WIDTH SELECTION

TOOTH SELECTION

BLADE WIDTH SELECTION

The dimension from tooth tip to back edge of the blade is the blade width. The greater the width, the greater the resistance to deflection while cutting. For straight cutting applications, use the widest blade the machine can accept. For contour cutting use the widest blade that the contour radius will permit (see Minimum Radii Cut Chart)

Radii in this chart are based on manual feeding of one inch thick milled steel. To cut close tolerance radii the following factors must be considered:

FEED PRESSURE

FEED PRESSURE

Chips tell you what is happening with your feed pressure and your blade. Powdery or fine chips indicate not enough feed pressure is being applied. Loosely curled chips tell you everything is going well. Heavy, thick or blue burned chips mean you are pushing the blade too hard, creating too much heat and load for the teeth.

If a change in feed or speed rates is required, change one at a time and observe the results after each change.

Tooth selection is based on the principle that there is a tooth pitch best suited for the cutting job. Blade selection should be based on the size, shape, accuracy, material and cutting rate expected. The chart below will help you to select the correct pitch for cutting solids, tubes and structural.

Keep in mind these numbers: 3,6,12,24. There should be a minimum of three teeth in work at all times for bimetal bands. Ideally, 6-12 teeth should be in contact with the work; 24 teeth in work is
too many