OIL JETTER SYSTEM for NC LATHE
The problem of NC lathe process is said to be inner diameter machining. Drilling Boring Variation in inner diameter dimension NIKKEN OIL JETTER SYSTEM developed for internal rationalization solves this problem. ｝ Solution Coolant is not enough for external supply
Trouble frequent due to insufficient supply of coolant
Cutting feed movement OK
NG
Coolant is not supplied to required area.
Boring
Drilling
Matarial : JIS SUJ2, Drill : φ23mm Shank Protruding Length 65mm Cutting Length : 85mm Through Hole, Cutting Speed : 30m/min Feed : 0.3mm/rev
Matarial : JIS S55C, Boring Bar : φ 12mm Shank Protruding Length 65mm Insert tip : Cermet, Depth of Cut : 0.5mm/φ Wear Cutting Speed : 100m/min, Feed : 0.3mm/rev
Outer Coner Wear
With reliable jetting Edge Cooling Chip Discharge Long Service Life of Cutting Tool Reduction of Setup Time and Setup Times Unattended Operation at Night
Wear （μ m ）
Drill with oil hole
60
Coolant External Supply
Sandard drill with THE OIL JETTER DRILL SLEEVE SYSTEM
Flank Wear
40
OIL JETTER BITE SLEEVE SYSTEM
Outer Coner Wear and Flank Wear
20
2
3
4
5
6
7
10
20
30 Total cutting length (m)
40
50
60
Standard drill with Coolant External Supply
Total cutting length (m)
● With external supply, the total cutting length is 17m and wears by 70µm, and the service life is reached. ● In THE OIL JETTER BITE SLEEVE SYSTEM it is possible to continue with wear of 50µm even after cutting 60m.
Oil hole drill is good for life expectancy, ● The outer corner wear and there are many regrinding steps. ● Not suitable for through holes. ● There is a limit to the discharge amount. ● It is expensive.
In contrast, THE OIL JETTER SLEEVE SYSTEM ● Mainly flank are wear, easy to regrinding. ● Suitable for through holes. ● It is proportional to the tank discharge amount and the discharge amount is large. ● It is also possible to use a standard drill.
OIL JETTER SYSTEM for NC LATHE
LEA ■ Oil Jetter Bite Sleeve (for Commercially Available Boring Bar) ● With powerful coolant discharge groove. ● Excellent coolant effect for boring. ● Always remove chips with strong pressure to protect the cutting edge.
G
Code No. d- D
Code No. d- D
ℓ ℓ 1
ℓ ℓ 1
C
G Fig
G
C
Fig
φd
LEA16- 6 - 8 LEA20- 6 - 8 -10 -12 LEA25- 6 - 8 -10 -12 -16 LEA32- 8
LEA32-16 -20 -25 LEA40-10 -12 -16 -20 -25 -32 LEA50-12
15.5 16 18 19.5 19.5 30 20 22 22 24 24.5
9SLG5P0.5-5 9SLG6P0.75-5 9SLG5P0.5-5 9SLG6P0.75-6 9SLG6P0.75-5 9SLG6-8 9SLG5P0.5-5
30 31.5
φC φD
26
70
1
26
9SLG8P1.0-8
1
70
Fig.1
ℓ
ℓ 1
43 24 26 30 34 48 53 26 30 34 48 58
15
9SLG10-10
2
26
1
70
9SLG6P0.75-6
G
1
70
10
2
26
9SLG8P1.0-8
φd
3 2
9SLG8P1.0-12 9SLG12-12 9SLG6P0.75-6
φC φD
26
70
1
20 26 30 34 48 58
9SLG6P0.75-6
Fig.2
ℓ
ℓ 1
G
-16 -20 -25 -32
9SLG6P0.75-5
1
9SLG8P1.0-8
22 24 26
75
φd
-10 -12
9SLG6P0.75-6
26
70
1
9SLG8P1.0-12 9SLG10P1.25-10
φC φD
3
313
Fig.3
ℓ
ℓ 1
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