392 Каталог KYOCERA 2017 Инструмент сборный и монолитный для станков Стр.G31

Каталог KYOCERA 2017 Инструмент режущий Стр. G31 0392 Lab2u

Guide for External Grooving Guide for External Grooving Point (I) (Turning after Grooving) 1) Grooving Depth Over 0.5mm: For roughing (Refer to Fig. 1) Before turning, pull the tool back about 0.1mm after grooving, instead of turning subsequent to grooving. (Failure to pull the tool back before traverse machining will result in an unbalanced load applied on only one side of the cutting edge.) JZ n (O) Before turning, pull the tool back about 0.1mm after grooving. (Grooving Depth Over 0.5mm: At roughing) Fig.1 2) Grooving Depth under 0.5mm: For finishing (Refer to Fig.2) Turning subsequent to grooving is possible because shallow groove depths relate a small load on the cutting edge. (Retention time is not necessary.) Point (II) 1) When widening the groove width (Refer to Fig.3), apply the "Step Turning." 2) The widened groove and side walls should be finished last. (For better chip control, ap over 0.5mm is recommended.) Note) If the workpiece is not supported at the center, reduce the feed rate when grooving towards center. Turning subsequent to grooving (Grooving Depth under 0.5mm: At finishing) Fig.2 rj Case Studies 20Cr1H (Grooving) Gear Vc=113 164 m/min f=0.06 mm/rev -Wet -GDM4020N-040GM (PR1225) KGDL2525X-3T10S GM Chipbreaker Стружколом сменной пластины (PR1225) Competitor K (PVD Coated Carbide) s I 1,500 pcs/C 250 pcs/C GM chipbreaker (PR1225) showed 6 times longer tool life than that of Competitor K. Good chip control without burned chips. m J Competitor K GM Chipbreaker Стружколом сменной пластины 20CrMo (Grooving / Turning) (Evaluation by the user) -Gear Vc=170m/min -=0.15 mm/rev(Roughing) 0.10 mm/rev(Finishing) -ap=0.2mm(Finishing) - Wet -GDM4020N-040GM (PR1215) -KGDR2525X-4T20S GM Chipbreaker Стружколом сменной пластины (PR1215) Competitor L (Roughing: PVD Coated Carbide) (Finishing: Cermet) 250 pcs/C 200 pcs/C GM chipbreaker reduced occurrence rate of tangle of chips (occurrence rate 80% 10%). The problem was persistent with Competitor L. Machining productivity is improved. Chips easily tangled Competitor L (Finishing) Smooth chip control GM Chipbreaker Стружколом сменной пластины (Finishing) (Evaluation by the user) 10 G31 Grooving