Our customer, a Swiss subcontracter to the machine building industry, manufactures a tube piece with 4 bores. Lacking an alternative, they deburred the holes manually.
The workpiece shows 2 x 2 bores. Per year, 50'000 units are manufactured. This results in 200'000 bores to be deburred annually.
- Bore-Ø d: 14.0 mm / 20.0 mm
- Inner tube-Ø D: 30.0 mm
- Outer tube-Ø: 35.0 mm
- Deburr size: max. 0.5 mm
- Material: Steel
- Machine: Long turning lathe
- Machining: Radially, from the bar, coolant pressure 30 bar
The tools proposed by HEULE are:
- Ø14.0 mm:
Tool: COFA C12/13.5/H-OM
Blade: C12-M-0008-T (M/25°)
- Ø20.0 mm:
Tool: COFA C12/19.5/H-OM
Blade: C12-M-0009-T (M/30°)
Ø14.0 mm: S = 455 min-1 (v = 20 m/min)
Ø20.0 mm: S = 280 min-1 (v = 17 m/min)
Ø14.0 mm: f = 0.4/0.13 mm/rev (F = 182/60 mm/min)
Ø20.0 mm: f = 0.5 mm/rev (F = 140 mm/min)
- Costs economies:
Automatic, process capable deburring - Elimination of manual work
Use of "unmanned" hours
- Reduction of cycle time:
Cycle time can be reduced by 20% at least.
"COFA is a most suitable possibility to eliminate manual processes and to make use of the ghost shift.", reports the customer.