Kyocera - Основной каталог 2011-2012 ENG

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Edge Preparation

Series              MT-Chipbreaker              TK-Chipbreaker                           TMR-Chipbreaker                                                                  Without Chipbreaker (NB)

                Chamfer + hone Chamfer + hone Chamfer + hone Sharp Edge Chamfer + hone                                                                                        Hone                          Sharp Edge

                    Corner-R0.05 Sharp Corner Corner-R0.2-0.3 Corner-R0.2-0.3 Corner-R0.2                                                                                 Corner-R0.05 Sharp Corner

     Edge
Specification

                 CR9025 / PR915 PR930 / KW10 CR9025 / PR915 PR930 / KW10                                      PR1115                                                          CR9025                        PR930 / KW10

                                                                                  • Sharp Edge Spec. can reduce cutting resistance by 40% compared to chamfer edge.

  Series                                                                           Advantage
GMM-MT
                 Specific chipbreaker for cut-off operations requiring sharp cutting performance.
GMM-NB           Minimizes the Boss.

                 Cutting edge is flat with no chipbreaker.
                 Good performance for brass, etc.

 GMM-TK          Stable design with chipbreaker for cut-off.                                                                                                                                                              H
 GMN-TK          Large corner-R.
GMN (Std.)       2-edge for economical performance.

                 Same chipbreaker geometry as GMM-TK.
                 1-edge.
                 Wide application range.

                 Mainly for deep grooving, but available for groove widening and turning due to projection near side cutting edge.
                 1-edge and wide application range. Available for cut-off applications.

TMR-Chipbreaker

Chipbreaker Advantages                                                                            GMM Chipbreaker MAP

Special Curve Wall                                                                       High                                                                             TMR                                             Cut-off

                                                         Improved chip evacua-           Feeding                                                                                     TK
                                                         tion by squeezing chips
                                                                                         Low             MT                                                                    Stability
                                         Chip width < grooving width
                                                                                                  Sharp Cutting
Depression in center of cutting edge.

TMR-Chipbreaker enables stable chip control also for high feed rates.

Good chip control even when cutting speed (spindle revolution) is increased.

                                  (Cutting Condition: 15CrMo4 (SCM415), 30, constant spindle revolution)                                                                       Application Range
                                                                                                                                                                          
Description         n=1060min-1(Vc=100m/min)    n=2123min-1(Vc=200m/min)

                    f=0.12mm/rev  f=0.18mm/rev  f=0.12mm/rev                      f=0.18mm/rev                                                  Cutting Speed Vc (m/min)

      GMM                                                                                                                                                                  TMR
   3020-TMR
(Without Hand)                                                                                                                                                                    Chipbreaker

      GMM                                                                                                                                                                 
3020R-TMR-6D
                                                                                                                                                                                       
    (R-hand)

                                                                                                                                                                                                      f (mm/rev)

Recommended Cutting Conditions                  Workpiece Surface Roughness

Workpiece Material Vc (m/min)     f (mm/rev)    TMR-Chipbreaker provides good surface roughness on the workpiece end face at high feed rate ranges.

                                                                                  GMM2020R-TMR-6D                                                                         GMM2020-TMR

Carbon Steel        60~200

                                                                                  Competitor's Chipbreaker A                                                              Competitor's Chipbreaker A
                                                                                  GMM2020R-TMR-6D                                                                         GMM2020R-TMR
                                                                              Roughness Rz (m)
Alloy Steel         60~150        0.08~0.18                                                                                  Roughness Rz (m)

Stainless Steel     50~140

                                                                                                                                                                                  

                                                                                  f (mm/rev)                                                                                  f (mm/rev)

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