This video introduces a machining example using Nakanishi motor spindle (new coolant through motor spindle: CTM-4020).
Drilling φ0.5 mm × depth 6 mm through holes in stainless steel 303 is shown.
[Point]
Doubled feed rate enables significant improvement in machining efficiency by using the Nakanishi high-speed spindle based on the tool manufacturer's recommended cutting conditions.
[Drilling conditions]
• Nakanishi spindle CTM-4020 working conditions
Workpiece material: Stainless steel 303
Tool diameter: φ0.5 mm drill (Mitsubishi Materials/MWS0050XB-VP15TF)
Hole depth: 6 mm, through hole
L/D: 12
Cutting speed: 31 m/min
Motor speed: 20,000 min⁻¹
Feed rate: 0.01 mm/rev
Feed speed: 200 mm/min
Coolant: internal lubrication (30 MPa) + external lubrication
　　　　oil-based coolant viscosity VG 7
Drilling: non-peck drilling
Pilot hole: depth 1 mm
φ0.5 mm drill (Mitsubishi Materials/MWS0050SB)
Processing time: 3 sec/hole
• Tool manufacturer's recommended conditions
Workpiece material: Stainless steel 303
Tool diameter: φ0.5 mm
Hole depth: -
L/D: ≦12
Cutting speed: 20 m/min
Motor speed: 12,700 min⁻¹
Feed rate: 0.008 mm/rev
Feed speed: 100 mm/min
Coolant: Internal lubrication
Drilling: -
Pilot hole: with pilot hole
Processing time: -
[Products]
Coolant through motor spindle(CTM-4020)
en.nakanishi-spindle.com/product/ctm-4020/
[Contact us]
en.nakanishi-spindle.com/inquiry/inquiry/
[Website]
en.nakanishi-spindle.com/
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