cutting tool material
Post on 14-Dec-2014
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CUTTING TOOL MATERIALPresented by : Vipul Patil (10-732)
To produce quality parts, a cutting tool must
have three characteristics:
Wear resistance — having acceptable tool life
before needing to be replaced.
Hardness — hardness and strength at high
temperatures.
Toughness — toughness, so that tools don’t chip or
fracture.
Unstable
Very Inexpensive
Extremely Sensitive to heat
Considered obsolete today
Sharp cutting edge possible
Unstable
Inexpensive
Retain hardness at moderate temperature
Most common material tool used today
Sharp cutting edges possible
Stable
Moderately expensive
High resistance to abrasion
Sharp edges generally no recommended
Stable
Expensive
Coated with one or more thin layer of wear
resistance material – life increased by 5 times
Best applied at high cutting speed
Stable
Very Expensive
The hardest substance known to date
It is used where abrasive materials would wear
anything else
Extremely fragile
Sharp edges generally not recommended
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