How do I calculate the torque and horsepower needed to saw mat.?
How do I calculate the torque and horsepower needed to saw mat.?
(OP)
For example, I want to know what motor specs I need to design a saw that will cut through a fiberglass rod.
Are there equations for this? For instance, number of teeth on the blade coupled with a cross sectional area of the material are some data that could be used?
Are there equations for this? For instance, number of teeth on the blade coupled with a cross sectional area of the material are some data that could be used?





RE: How do I calculate the torque and horsepower needed to saw mat.?
Required feed rate, cutting speed, or cycle time
Type of saw (circular, reciprocating, band, etc)
Will saw start/stop often, come up to speed and stay, etc
My suggestion: find an existing saw that's similar to the one you want to design. Make sure it cuts like you want. Size your motor accordingly.
RE: How do I calculate the torque and horsepower needed to saw mat.?
I was curious if someone had experience doing this or knew how companies like Barringer or Kaltenbach accomplish this. Im guessing they do it with the good old educated guess from experience and test method.
RE: How do I calculate the torque and horsepower needed to saw mat.?
I may be wrong, but I have only seen the stuff cut with a grinding cut-off wheel, although I assume a diamond-tipped saw would be ok.
Cheers
Harry
RE: How do I calculate the torque and horsepower needed to saw mat.?
I suspect that FRP falls somewhere in between.
I have a faint recollection of going through the metal cutting exercise in a lab course sophomore or junior year.
RE: How do I calculate the torque and horsepower needed to saw mat.?
We’re on the blade side, specifically the cutting tip material on the blade and blade design. Don’t forget blade life. An advanced carbide grade can give at least twice the life in a highly fibrous material.
When we design and test new blades we basically follow handleman’s plan.
Tom
Thomas J. Walz
Carbide Processors, Inc.
www.carbideprocessors.com
RE: How do I calculate the torque and horsepower needed to saw mat.?
Don
Kansas City
RE: How do I calculate the torque and horsepower needed to saw mat.?
Try chip load and feeds and speeds,
h
Tom
Thomas J. Walz
Carbide Processors, Inc.
www.carbideprocessors.com
RE: How do I calculate the torque and horsepower needed to saw mat.?
RE: How do I calculate the torque and horsepower needed to saw mat.?
You can cut fiberglass with a tipped saw. Use a 10 degree hook with good side clearance. Use a nano-grain carbide with something like a CO/CR or Ni/Cr binder to instead of Co. Add a fair amount of Ti as TiC or TiCN to increase lubricity and to lower thermal transfer.
Depending on how clean you need the cuts consider a scoring saw to prevent chipout.
ATB is the safest way to start but you might have better luck with a California triple chip or a modified California triple chip.
Depending on what you mean by fiberglass the major problem is the filler in the bonder and the tension as the tip comes out of the cut in each individual fiber. An addition of TaNbc can also be advantageous.
Thomas J. Walz
Carbide Processors, Inc.
www.carbideprocessors.com