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Cutting on the Band Saw


The band saw is an all around tool. The band saw can be used to cut many different types of cuts that include: curved, irregular,
beveled, and straight cuts.
This web page describes the proper way to cut a curved or irregular cut.

 

Controls: The controls on the Vertical Band Saw in the materials processing laboratory consist of the following:

  • A magnetic power switch that must be reset if the power in the laboratory is interrupted. 
  • A knob to loosen the saw blade guard and guide block assembly.
  • A miter gauge for straight cuts. 
  • A handle to lock the table at the desired angle.
  • A blade tension knob on top of the saw.
  • A blade tracking knob on the back of the upper wheel guard.
  • A Chart is posted on the Saw that lists speeds and blades for different types of stock.
Operation (Irregular or Curved Cuts): An irregular or curved cut is achieved when a piece of stock is moved around in a circular motion to make a curve or square.
 
  • First mark out the shape you want to cut on the stock to be sawed.
  • Make sure the cutting surface is clutter free.
  • Adjust the blade guard and guides so they 1/4" above the stock you are cutting.
  • Turn the saw on and start to make your cut, if the curve is too sharp you may need to make relief cuts to allow for clearance. Do Not Back Out!!! 
  • Finish the cut and turn the saw off and wait until the blade comes to a complete stop before removing any scraps.
Stock is being pushed into the blade. Note the position of the hands and the blade guards height above the stock. Again note the position of the hands, they are a safe distance away from the blade. Only turn the stock while moving forward.

Potential hazards: Because the blade on the band saw is one continuous blade and for the speed that it goes the follow hazards exist.
 

  • Contact with the blade can cause serious injury.
  • Loose clothing can get caught in the blade.
  • The blade can break if twisted or pinched.
  • Although uncommon a piece of scrap or the broken blade could be shot out.
Safety practices: Because of these potential hazards the following safety rules must be followed.
 
  • Only perform operations if you have read and understand instructions and All Safety Procedures and properly know how to use the machine.
  • Always wear safety glasses.
  • Don't wear loose clothing that could be caught in the machine. Roll up sleeves tie back hair.
  • Remove Jewlry such as finger rings, watches, bracelets etc.
  • Be sure machine is electrically grounded.
  • Be sure to have a good hold of the stock.
  • Make sure the blade guide is at the proper height 1/4" above the stock.
  • Check the cutting surface to make sure the stock will not hang up on anything.
  • Match the radius of the curve to the saw blade.
  • Choose the Correct speed for the size and type of stock.
  • Make all adjustments with the saw turned off, and unplugged in cases where the blade is or could be touched. 
  • Check the saw to make sure it is in good working order.
  • Don't back out of cuts
  • Don't force the cut.
  • Keep you fingers a safe distance away form the blade.
  • Be sure to have firm footing. 
  • Turn off the saw to clear any materials from near the blade.
  • Avoid distractions, never look away during a cut. 
  • Do not allow others to crowd around the saw. 
  • Turn the saw off immediately if it does not sound right or if the blade binds.. 
References:
Duvall, John B., (1996) Contemporary Manufacturing Processes. Goodheart-Willcox Company Inc. Tinley Park, Illinois.

ITT 252 - Materials Processing
Department of Technology
University of Southern Maine
Prepared by Keith Wallace, 12/11/02