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DIHART ® Application Examples<br />
<strong>Reaming</strong> Bearing Case with<br />
Dihart ® Cutting Ring<br />
1<br />
Machining Data:<br />
Cutting Material: TlN<br />
Geometry: ASG01<br />
Surface Finish: Ra 0.4<br />
Run-out: 0.003<br />
Cutting data:<br />
v c<br />
= 246 SFM (75 m/min);<br />
v f<br />
= 787 ft/min (240 m/min)<br />
n = 200 rpm<br />
f = 0.047 in/rev (1.2 mm/U)<br />
The task:<br />
Finish machining operation for bearing<br />
case in class 25 cast iron.<br />
Parameters:<br />
Diameter: Ø 110 mm H6<br />
Hole Length: 1.968 inch (50 mm)<br />
Surface Finish: Ra 0.4<br />
Pre-machined: Ø 4.315 inch (Ø 109.6 mm)<br />
2<br />
3<br />
4<br />
5<br />
<strong>Reaming</strong> Cylinder Liner<br />
with Reamax ® TS<br />
6<br />
The task:<br />
Finish machining operation for cylinder<br />
liner in 34CrAlNi7V (nitride steel).<br />
Previously getting 23 ft of tool life.<br />
Parameters:<br />
Diameter: Ø 25 mm H7<br />
Hole Length: 0.9874 inch (25 mm)<br />
Surface Finish: Rz 1.6<br />
Machining Data:<br />
Cutting Material: HM/TlN<br />
Geometry: ASG09<br />
Surface Finish:
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