Kyocera - Основной каталог 2010-2011 ENG

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Recommended Cutting Conditions

                                                 Recommended Insert Grade (Cutting Speed Vc: m/min)

                                   fz            Cermet                                              PVD Coated Carbide                                                                                      Carbide
                                (mm/t)
Workpiece Material                               TN60
                                                          TN100M

                                                                    TC60
                                                                             PR630
                                                                                       PR730
                                                                                                 PR830
                                                                                                                              PR660
                                                                                                                                       PR905
                                                                                                                                                 PW30
                                                                                                                                                           KW10

Stainless Steel                 0.05~0.1                                                60~120                           60~120

Carbon Steel                    0.1~0.15                                                80~150                           60~130

Alloy Steel                     0.1~0.15                                                80~150                           60~130

Mold Steel                      0.05~0.1                                                70~120                           70~120

Cast Iron                       0.1~0.2                                                                                          100~180                                                                     80~120

Non-ferrous Metals              0.1~0.2                                                                                                                                                                                        100~300
                                                                                                                                                                                                             : 2nd Recommendation
                                                                                                                                                                                       : 1st Recommendation

Points at Bolt Counter Sink Milling
    Carbon Steel
    Increase the feed rate to fz=0.1~0.15 mm/t for preventing long chips at low feed rates.
    Chip control is good when setting Vc=80m/min for MEF11~MEF25, and Vc=120m/min for MEF26~MEF48.

Description Cutting Speed Vc (m/min) Feed Rate fz (mm/t)

MEF11~MEF25                     80               0.1~0.15

MEF26~MEF48                     120              0.1~0.15

Sticky Materials
Step feed is recommended for good chip control
Increase the feed rate to fz=0.1~0.15 mm/t for preventing long chips at low feed rate (fz=0.05mm/t).
Use cover to prevent accidents or injury by thick chips at higher feed rates.

Description Cutting Speed Vc (m/min) Feed Rate fz (mm/t) Step Feed (mm)

MEF11~MEF48                     80~150           0.1~0.15                               0.5~1.5

Stainless Steel
Use a lower Cutting Speed. High Cutting Speeds cause chattering.

  Cutting Performance when Shouldering                                                  Description  Cutting Range

               Bolt Countersink Endmill is also recommended                             MEF11-S12
       of shouldering.                                                                  MEF14-S12
                                                                                        MEF17-S16
                             AE                                                         MEF18-S16

                                 Vc=80~120m/min                                         MEF20-S16
                                 C55                                                    MEF22-S20
                                 DRY                                                    MEF25-S25
                                 Overhang Length: Same as  in the
                                 dimension table                                        MEF26-S25
                                                                                        MEF32-S25
When shouldering, both side edge and bottom edges function.                             MEF35-S32
 Both edges wear at the same time depending on ap.
 The insert uses 2 edges instead of 4. (See Fig.1)

MEF type's side edge is designed to have a slight clearance for the
countersink milling.
 Therefore, worked side wall is approx. 1° inclined against the vertical face.

                                                                               (Fig.2)
AP

                                                                                                                                                      Milling

                                                 approx. 1°

                                                                                        MEF39-S32
                                                                                        MEF43-S32
                                                                                        MEF48-S32

       2 edges function                   Fig.2

Fig.1

                                          kyocera@kyocera-tools.ru                                                                                                                                                    M137
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