492 Каталог SUMITOMO 2018 Инструмент металлорежущий Пластины Резцы Фрезы Сверла Стр.L20

Каталог SUMITOMO 2018 Инструмент металлорежущий Стр. L20 0492 Lab2u

SUMIBORON Uncoated SUMIBORON pm Sintered Compoment BN7500 Uncoated CBN grade for high precision and high efficiency machining of powdered metal I General Features High density sintered material made of micro-grained CBN grains provide excellent sharpness and wear resistance for high quality surfaces in sintered alloy finishing. Surface finish using the BN7500 Surface finish using previous CBN 41 The previous CBN left white blemishes on the finished surface whereas the BN7500 leaves a better, glossy surface finish. I Characteristics Excellent for finishing of powdered metal Excellent machined surface finish and surface appearance. Available with 5 different types of edge treatment for machining sintered alloys of any shape or hardness The LF type has a sharper edge designed specifically for machining sintered alloys with minimal burr and improved machining precision. The HS Type has a strengthened cutting edge for stable chipping resistance during interrupted cutting and finishing. I Cutting Performance Surface Roughness Comparison 10 0 -' -' - UJ 0 50 100 150 200 Cutting Length (m) Work material: Sintered ferrous alloy, SMF4040 equivalent (HRB70, Continuous cut) Insert type: CNGA 120408 LF-NU2 Cutting data: vc = 200 m/min, f = 0,1 mm/rev, doc = 0,1 mm, Wet Burr Comparison (Average Height) J 0,6 Previous CBN standard 0,5 0,4 £ 0,3 X 0,2 0,1 BN7500 Standard BN7500, LF . / 50% reduction / in burr height 50 100 150 200 Cutting Length (m) Work material: Sintered ferrous alloy, SMF4040 equivalent (HRB70, Continuous cut) Insert type: CNGA 120408 LF-NU2 Cutting data: vc = 200 m/min, f = 0,1 mm/rev, doc = 0,1 mm, Wet Feed and Burr Relationship Recommended Edge Treatment The LF Type without negative land has a cutting edge sharpness superior to the standard type and can control burrs better. Work material: VVT Facing Insert type: TNGA 160404 NU3 Cutting data: vc = 200 m/min, f = 0,1 mm/rev, doc = 0,1 mm, Wet L20