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PCD Tipped Insert Speed and Feed Chart

Material BHN / Rc Speed Range
(SFM)
Cutting Conditions
Max DOC
ACD & ATD
Max DOC
ACT & ATP
Feed
IPR
Low Silicon Aluminum 225-350 BHN 1000-5000 0.025 0.08 .001-.007
High Silicon Aluminum 270-425 BHN 600-3000 0.025 0.08 .001-.007
Metal Matrix Composites N/A 500-2000 0.015 0.035 .001-.007
Copper Alloys, Brass, Bronze 80-120 BHN 750-3500 0.025 0.08 .001-.007
Presintered Tungsten Carbide 140-300 BHN 100-350 0.007 0.012 .001-.005
Acrylics N/A 700-1500 0.025 0.08 .001-.007
Fiberglass N/A 600-1000 0.02 0.06 .001-.007
Graphites N/A 600-1000 0.025 0.08 .001-.007
Nylon, Plastic N/A 700-1500 0.025 0.08 .001-.007
Hard Rubber N/A 500-2500 0.025 0.08 .001-.007

SFM = Surface Feet per Minute

AS THE DOC DECREASES, THE FEED RATE CAN INCREASE

SCT PCD inserts are excellent for continuous cutting of a wide range of non-ferrous and non-metal materials. The inserts are precision ground for machining to sub-micron finishes with maximum tool life. PCD tipped inserts allow for higher cutting speeds with longer tool life.

Applications

Abrasive
Nonmetallic
Carbon Fiber Bicycles
Carbon Fiber Car Parts
Ceramic Gas Turbine Parts
Ceramic Bearings
Fiberglass Bodies for Cars and Boats
Nonferrous
Materials
Aluminum Rims
Aluminum Spools
Brass Fittings
Precious Metals
Presintered Tungsten Carbide

Application Guidelines

  • Make sure the machine and setup is rigid and solid - chatter will cause chipping.
  • Tool height when boring should be slightly above center - tool deflection will put the tool on center.
  • Do not stop the machine with the tool in cut - this will result in tool breakage.
  • Use of coolant will reduce heat and improve surface finish.
  • Do not contact the tool to hard surface prior to the machining process - this will cause chipping.
  • Higher speeds minimize tool buildup.
  • Depth of cut should not exceed 70% of PCD tip length.