MITSUBISHI MATERIALS CORPORATION
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CHIP CONTROL FOR TURNING

CHIP BREAKING CONDITIONS IN STEEL TURNING
Type A Type B Type C Type D Type E Type
Small Depth
of Cut
d <.276"
Large Depth
of Cut
d=.276"─ .591"		  
Curl Length l Curless l≥2inch l≤2inch
1 ─ 5 Curl		 1 Curl 1 curl─half curl
Note
  • Irregular continuous shape
  • Tangle about tool and workpiece
  • Regular continuous shape
  • Long chips
 Good Good
  • Chip scattering
  • Chattering
  • Poor finished surface
  • Maximum
Cutting Speed and Chip Control Range of Chip Breaker
In general, when cutting speed increases, the chip control range tends to become narrower.
Effects of Coolant on the Chip Control Range of a Chip Breaker
If the cutting speed is the same, the range of chip control differs according to whether coolant is used or not.