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 <7mm
Small Depth of Cut d=7─15mm		－
Curl Length l	Curless	l≥50mm	l≤50mm 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.