Recommended Cutting Condition
Technical Data [ E302, E322, EL422 series ]
[ B302, BL422 series ] WORKPIECE
CARBON STEELS, ALLOY STEELS, TOOL STEELS
HARDNESS DIAMETER(mm)
R0.5 R1 R2 R3 R4 R5 R6 R8 R10 R12.5
Side Cutting
ALLOY STEELS, TOOL STEELS
~ HB225
HB225~325
RPM 31,800
FEED 572
RPM 27,900
FEED 502
31,800
1,910
27,900
1,670
15,900
1,910
13,900
1,670
10,600
1,910
9,280
1,670
7,960
1,910
6,960
1,670
6,370
1,780
5,570
1,560
5,310
1,590
4,640
1,390
4,000
1,300
3,500
1,050
3,200 2,400
1,000 800
2,800 2,100
840 650
RPM = rev. / min. FEED = mm / min.
ap ae
R R 1.0 1.0＜ R
ap 0.05 x up to R 0.1 x up to R
ae 0.2 x up to R 0.2 x up to R
HARDNESS DIAMETER(mm)
1 2 3 4 6 8 10 12 16 20 25
DepthofCut : 1.5D WIDTH : 0.1D CARBON STEELS, ALLOY ALLOY STEELS, TOOL STEELS STEELS, TOOL STEELS ~ HB225 HB225~325 RPM FEED RPM FEED 5,300 60 4,300 50 4,500 80 3,800 60 3,700 80 3,200 60 2,750 110 2,400 60 1,850 110 1,600 60 1,400 110 1,200 90 1,100 110 950 90 930 110 800 90 700 110 600 90 560 110 480 90 450 110 380 90
Slotting DepthofCut : 0.5D WIDTH : 1D CARBON STEELS, ALLOY ALLOY STEELS, TOOL STEELS STEELS, TOOL STEELS ~ HB225 HB225~325 RPM FEED RPM FEED 4,300 40 3,500 20 3,800 50 3,100 30 3,200 50 2,650 30 2,400 50 2,000 30 1,600 50 1,320 30 1,200 60 1,000 40 950 60 800 40 800 60 660 40 600 60 500 40 480 60 400 40 380 60 320 40
※ Please reduce cutting speed around 20~30% from the above table or E322 series.
※ Please reduce cutting speed around 20~30% from the above table or BL422 series.
[ B304 series ] WORKPIECE
[ E304, E324 series ] CARBON STEELS, ALLOY STEELS, TOOL STEELS
HARDNESS DIAMETER(mm)
R0.5 R1 R2 R3 R4 R5 R6 R8 R10 R12.5
~ HB225
HB225~325
RPM 39,750
FEED 718.25
RPM 34,875
FEED 6,275
39,750
2,387.5
34,875
2,087.5
19,875
2,387.5
17,375
2,087.5
13,250
2,387.5
11,600
2,087.5
9,950
2,387.5
8,700
2,087.5
7,962.5
2,225
6,962.5
1,950
6,637.5
1,987.5
5,800
1,737.5
5,000
1,625
4,375
1,312.5
4,000 3,000
1,250 1,000
3,500 2,625
1050 812.5
RPM = rev. / min. FEED = mm / min.
ap ae
532
Side Cutting
ALLOY STEELS, TOOL STEELS
R R 1.0 1.0＜ R
ap 0.05 x up to R 0.1 x up to R
ae 0.2 x up to R 0.2 x up to R
DIAMETER(mm) HARDNESS
1 2 3 4 6 8 10 12 16 20 25
DepthofCut : 1.5D WIDTH : 0.1D CARBON STEELS, ALLOY ALLOY STEELS, TOOL STEELS STEELS, TOOL STEELS ~ HB225 HB225~325 RPM FEED RPM FEED 6,630 90 5,380 75 5,630 120 4,750 90 4,630 120 4,000 90 3,440 165 3,000 90 2,310 165 2,000 90 1,750 165 1,500 135 1,380 165 1,190 135 1,160 165 1,000 135 880 165 750 135 700 165 600 135 560 165 480 135
Slotting DepthofCut : 0.5D WIDTH : 1D CARBON STEELS, ALLOY ALLOY STEELS, TOOL STEELS STEELS, TOOL STEELS ~ HB225 HB225~325 RPM FEED RPM FEED 5,380 60 4,380 30 4,750 75 3,880 45 4,000 75 3,310 45 3,000 75 2,500 45 2,000 75 1,650 45 1,500 90 1,250 60 1,190 90 1,000 60 1,000 90 830 60 750 90 630 60 600 90 500 60 480 90 400 60
※ Please reduce cutting speed around 20~30% from the above table or E324 series.
533