KGDI Stable machining with excellent chip control and smooth chip evacuation. Internal grooving 1 Excellent chip control with GMI chipbreaker for internal grooving • Evenly breaks chips in various cutting conditions with newly designed chipbreaker geometry. • Good chip control even in finishing applications with small depths of cut. Rear ramp supports chip deformation. Center geometry squeezes chips and prevents chip clogging during high feed machining. Chip control comparison (In-house evaluation) GMI chipbreaker Competitor A Conventional F • Smooth chip control with stable chip shape compared with competitor A and conventional F. • Prevents frequent machine stops caused by tangled chips. Cutting conditions: Vc = 100 m/min, f = 0.07 mm/rev; Toolholder: KGDIR3225B-3 Insert: GDM3015N-040GMI; Workpiece: 20Cr4 Corner design stabilizes chip shape during finishing and improves chip breaking performance. Front design stabilizes chip shape during low feed machining. 2 Smooth chip evacuation by creating chip pocket Smooth chip evacuation when grooving and finishing. Cutting Conditions: Vc = 100 m/min : ap = 3 mm, : ap = 1 mm, f = 0.08 mm/rev Toolholder: KGDIR3225B-3 Insert: GDM3015N-040GMI Workpiece: 15CrMo4 : ap = 0.2 mm 5.4 Residual chips (In-house evaluation) 50 40 30 20 10 0 Prevents chip clogging 25 ø33 60 Residual Rate (%) Improved chip evacuation by innovative chip pockets. DOWN KGDI Competitor B Competitor C Chips remaining in machined bore were greatly reduced compared with competitor B and C. 1 6.0
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