Kyocera - Каталог фрезерование 2017 ENG
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MEF BOLT COUNTERSINKING END MILL
Recommended Cutting Conditions
Recommended Insert Grades (Cutting Speed Vc: sfm)
Workpiece fz (ipt) MEGACOAT Carbide AGRADES
Material KW10 B
C
PR1225 PR1210 D
E
Carbon Steel 0.004~0.006 - - FLINEUP / INSERTS 45 / 70 LEAD
Alloy Steel 0.004~0.006 390~720 - G
Mold Steel 0.002~0.004 - - H
Stainless Steel 0.002~0.004 - J
Cast Iron 0.004~0.008 390~720 - K
Non-ferrous Metals 0.004~0.008 330~720 O
- - P
330~590 R
260~390 T
260~590 330~980 K9
-
-
Points at Bolt Counter Sink Milling : 1st Recommendation : 2nd Recommendation
Carbon Steel 75 LEAD
Increase the feed rate to fz = 0.004~0.006 ipt for preventing long chips at low feed rates.
Chip control is good when setting Vc = 260 sfm for MEF11~MEF25, and Vc = 390 sfm for MEF26~MEF48.
Part Number Cutting Speed Vc (sfm) fz (ipt) 90 LEAD
MEF11~MEF25 260 0.004~0.006
MEF26~MEF48 390 0.004~0.006
Sticky Materials HIGH FEED
Step feed is recommended for good chip control
Increase the feed rate to fz = 0.004~0.006 ipt for preventing long chips at low feed rate fz = 0.002 ipt.
Use cover to prevent accidents or injury by thick chips at higher feed rates.
Part Number Cutting Speed Vc (sfm) fz (ipt) Step Feed (inch) MULTI-FUNCTION SLOT MILLS RADIUS / BALL-NOSE OTHER APPLICATIONS TOOL HOLDING SPARE PARTS
MEF11~MEF48 260~490 0.004~0.006 0.020~0.059
Stainless Steel
Use a lower Cutting Speed. High Cutting Speeds cause chattering.
Cutting Performance when Shouldering Part Number D.O.C. (in) Cutting Range fz = 0.006 ipt
MEF Bolt Countersink End Mill is also recommended for shouldering. fz = 0.004 ipt
MEF11-S12 0.118 fz = 0.002~0.006 ipt fz = 0.002 ipt
ae MEF14-S12 0.059
MEF17-S16
Vc = 260~390 sfmD.O.C. MEF18-S16
1055
DRY DL/0.236 DL/0.118 DL/0.079 Cutting Width: ae(in)
Overhang Length:
Same as in the dimension table
MEF20-S16 D.O.C. (in) 0.217 fz = 0.002 fz = 0.006 ipt
MEF22-S20 0.118 fz = 0.006 ipt ipt fz = 0.004 ipt
fz = 0.002 ipt
~
Approx. 1° MEF25-S20 DL/0.236 DL/0.118 DL/0.079 Cutting Width: ae(in)
(89°) MEF26-S25
~
D.O.C. (in) 0.315 fz = 0.004 ipt fz = 0.006 ipt
MEF32-25 0.158 fz = 0.004 ipt
MEF35-S32 fz = 0.002 ipt
2 Edges Function Fig.2 MEF39-S32 fz = 0.006 ipt fz = 0.002 ipt
Fig.1 MEF43-S32
MEF48-S32
DL/0.236 DL/0.118 DL/0.079 Cutting Width: ae(in) TECHNICAL
• When shouldering, both side edge and bottom edges function. D.O.C. (in) 0.315 fz = 0.006 ipt fz = 0.006 ipt
Both edges wear at the same time depending on D.O.C.. fz = 0.004 ipt
The insert uses 2 edges instead of 4. fz = 0.004 ipt fz = 0.002 ipt
(Ref. to Fig.1) fz = 0.002 ipt
0.158
• MEF type's side edge is designed to have a slight clearance for the
countersink milling. INDEX
Therefore, worked side wall is approx. 1° inclined against the vertical face.
(Ref. to Fig.2) DL/0.236 DL/0.118 DL/0.079 Cutting Width: ae(in)
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