Режущие и зажимные инструменты Hoffmann Group 2026 - страница 640

GBP 57 GARANT SOFTCUT® 90° HIGH-PERFORMANCE SHOULDER MILL. Reliable and profitable ■ Very good perpendicularity for shoulder cuts. ■ Impressive surface quality. ■ Suitable for circular interpolation milling, plunging, ramping. ■ Optimised chip breaker geometry for machining tempered steels Marking indicating suitability (21 5444 – 21 5453 ST1400). for heavy-duty cutting. ■ Highly positive surface geometry for a soft cut in all materials. ■ First-rate innovative tool materials and coatings. Application example SIDE MILLING a workpiece, material C45 Technology data: ■ vc = 160 m/min ■ fz = 0.15 mm ■ ap = 6 mm ■ ae = 3 mm ■ Tool: GARANT Softcut® 90° shoulder mill 21 5411 50/7 ■ Insert: GARANT Softcut® 90° 21 5438 ST900 90° accuracy – comparison Test result with ap = 6 mm (shoulder height 30 mm) GARANT Softcut® 90° Total milling depth (mm) 30 21 5438 ST900 Step joint offset 24 of less than 0.01 mm 18 12 Competitors Step joint offset 6 of up to 0.035 mm 21 0 0.01 0.02 0.03 0.04 Deviation (mm) Tool material selection Recommended cutting conditions for Carbide tool materials with PVD coating shoulder milling Using the example of 21 5411_50/7 and chip breaker ST900 Finishing Medium Roughing Cutting depth ap (mm) Medium machining machining Heavy-duty machining 9 N HU7810-1 fz = 0.05 mm/z HB7830-1 6 P HB7510-1* HB7520-1 fz = 0.10 mm/z HB7830-1 fz = 0.15 mm/z M HB8630 3 HB7730-1 K 0 10 20 30 40 50 * CVD-coated Cutting width ae (mm) 640