Back turning ｜ Swiss CNC Lathes
Swiss CNC lathe back turning
➀ Excellent surface with good chipcontrol
➁ Improved surface finish thanks to wiper flat on cutting edge.
➀ Stable clamping force from three face contact with V-bottom
➁ Utilizes tool pressure to increase clamping force.
BACK DUO
BACK DUO is able to machine by guide bush for high accuracy back turning.
Conventional
BACK DUO
Excellent surface by 1Pass
Conventional
Conventional machining requires a second finishing cut on the end face.
End face
Excellent surface
Diameter
Ra：0.90μm / Rz：4.11μm
End face
Rough surface
Diameter
Ra：2.16μm / Rz：10.28μm
Work material：SUS304
Holder：TBDPR12
Insert：TM4 TBDP2201MR
Cutting condition： Vc=
80m/min
.260 SFM
(x)=
0.02mm/rev
.001 IPR
(z)=
0.08mm/rev
.003 IPR
ap=
3.0mm
.120 inches
WET
| ISO | Work material | Grade | vc (m/min) (SFM) | ap (mm) (inch) | X Direction f (mm/rev) (IPR) |
Z Direction f (mm/rev) (IPR) |
|---|---|---|---|---|---|---|
 |
Carbon steel Alloy steel |
DM4 | 40 – 150 130 – 500 | 0.5 – 3.0 .020 – .120 | 0.01 – 0.04 .0004 – .0016 | 0.02 – 0.08 .0008 – .0031 |
| TM4 | 40 – 90 130 – 300 | |||||
| QM3 | 40 – 150 130 – 500 | |||||
 |
Difficult-to-cut Free-cutting stainless steel |
ST4 | 40 – 150 130 – 500 | 0.5 – 3.0 .020 – .120 | 0.01 – 0.04 .0004 – .0016 | 0.02 – 0.08 .0008 – .0031 |
| DM4 | 40 – 100 130 – 330 | |||||
| TM4 | 40 – 90 130 – 300 | |||||
| QM3 | 30 – 90 100 – 300 | |||||
 |
HRSA Co-Cr alloy |
DM4 | 20 – 80 70 – 260 | 0.5 – 2.0 .020 – .080 | 0.01 – 0.03 .0004 – .0012 | 0.02 – 0.08 .0008 – .0031 |
For more information about this product, visit our online e-catalog, or download the catalog/product report
