MITSUBISHI MATERIALS CORPORATION
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PCD(POLYCRYSTALLINE DIAMOND)
  • Suitable for materials such as aluminium alloy,non-ferrous metals,and fibre strengthened plastic.
  • Suitable for extermely high speed finishing.
 MD220
  Micro-Structure of MD220
 
SELECTION STANDARD
TURNING,MILLING
SELECTION STANDARD

(Note.1):1st recommendation. :2nd recommendation.
(Note.2) Not suitable for steel.
 
GUN REAMER "For general use, use MD220."
Workpiece Recommended Conditions Finished Accuracy
Cutting Speed
(m/min) 		Feed Per Tooth(mm/tooth) Surface Roughness
(µ m)		 Oversize
(µ m)
－ø10 ø10－ø20 ø20－ø30
Aluminium Alloy 150
(100－200)		 0.03
(0.02－0.04)		 0.045
(0.03－0.06)		 0.055
(0.04－0.07)		 0.3－2.0 -5－+5
Copper Alloy 130
(80－180)		 0.03
(0.02－0.06)		 0.045
(0.03－0.06)		 0.055
(0.04－0.07)		 0.5－3.0 -5－+5
Sintered Alloy 30
(20－40)		 0.045
(0.03－0.06)		 0.5－2.0 0－+5
 
CUTTING PERFORMANCE
CUTTING PERFORMANCE
 
APPLICATION
Grade
MD205 MD220 MD230
Please use when there is insufficient resistance to wear with the MD220. Apply for general finishing of non-ferrous metals and no-metal cutting. Please use when a fracture has occurred with the MD220 and you desire a high-quality finished surface.