2 Excellent surface finish and long tool life Strict control of insert inscribed circle tolerance Improved surface finish quality and longer tool life with reducing front edge runout Excellent front edge runout accuracy Inscribed circle tolerance ± 0.015 mm or less (Class E Standard ± 0.025 mm or less) Runout effects when machining Advantage Theoretical reduction of roughness on finished surface, excellent surface roughness Effect on surface finish (Image) Surface roughness in stainless steel machining (Internal evaluation) Front edge runout: Small Surface roughness: Good (μm) 15.0 5.0 0.46 μm Ra -5.0 -15.0 0.0 0.5 1.0 Vertical magnification : ×1,000 Horizontal magnification : ×50 1.5 2.0 2.5 3.0 (mm) Cutting conditions : Vc = 250 m/min, ap x ae = 1.0 x 100 mm, fz = 0.15 mm/t, wet X5CrNi18-10 ø 125 (Standard 6 inserts) SL Chipbreaker Advantage Insert wear progresses evenly and tool life can be improved Effect on wear (User evaluation) Average corner examples Heavily damaged corner examples MFSE45 Wear : 0.145 mm Variation: Small Wear : 0.172 mm Competitor A Wear : 0.105 mm Variation: Large Wear : 0.911 mm Cutting conditions : Vc = 270 m/min, ap = ~ 1.5 mm, fz = 0.2 mm/t, Wet St 44-2 ø 250 (15 inserts) SL Chipbreaker (PR1535) Due to the high wear rate of the insert, all inserts need to be replaced, which may result in shorter tool life. 2
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