Case Study #2 UBURR
Industry: Cutting Tools Manufacture
Goal: Removing burrs from rear
machined drills
made for clamping screw
Application details:
- Material: AISI 4340, Wr N.1.6928
with 45HRc hardness
- Pilot Holes: Ø5mm / .197”
- Pilot Hole Length: H1=50mm / 1.97”
- Machine: Hermle C50
- Production Volume: 5000
boors/month for one family of tools.
Tool-holder: UB1050; UB-d050-C08-H53-L115
Blade: UB2060; UB-TSB-5-PL
Machining Parameters:
Ød Pilot-Hole | S Spindle Speed | F Table Feed | vc Cutting Speed | fz Feed per tooth |
Coolant | ||||
mm | Inch | RPM | mm/min | inch/min. | m/min. | sfm | mm | inch | |
5.0 | 0.315 | 2500 | 250 | 10 | 40 | 131 | 0.10 | 0.004 | External Air |
Results: The burrs were successfully removed, leaving 0.25×45° chamfers.
The customer saved roughly ~14 hours on manual work in 1 month.
