Режущие и зажимные инструменты Hoffmann Group 2026 - страница 909

GBP 57 ​ Roller burnishing tools Advantage: Surface quality up to Rz 2 µm possible. Application: For machining materials up to 45 HRC. Ideal for machining the surfaces of complex, continuous contours. Note: For detailed application recommendations please see the instruction handbook supplied. Holder for burnishing roller ​ 29 1412 – Fixed tool head (grub screw in the shank for clearance angle correction). 2,5 29 1415–1417 – Swivelling tool head (adjustment range ± 90°). Application: 29 1412 – For roller-burnishing of uninterrupted contours (convex, concave, cylindrical and conical). 29 1415–1417 – For roller-burnishing of uninterrupted contours (convex, concave, cylindrical and conical) and flat faces. Suitable even for applications up to the collar. Supplied with: Size 10-16 – Shank size 10 including shank adaptor 12 mm × 12 mm and 16 mm × 16 mm. Size 16-25 – Shank size 16 including shank adaptor 20 mm × 20 mm and 25 mm × 25 mm. Attention: Burnishing rollers must be ordered separately! Note: Check potential interference contours (x dimension of the roller = 2.5 mm). Shank size 29 1412 29 1415 29 1416 29 1417 29M 29M 29M Holder for burnishing roller 29M Fixed head Swivelling head universal universal right-hand left-hand 10-16 eShop – eShop (eShop) 16-25 (eShop) eShop – – ​ 29 1417 Burnishing rollers ​ Advantage: Inexpensive alternative to diamond burnishing up to a surface quality of Rz< 2 µm. Note: Use the largest possible radius. Tip radius mm 0,4 0,6 1 29 1419 29M Burnishing roller eShop eShop eShop ​ 29 1419 Smoothing tool with burnishing roller Technology The pressure of the burnishing roller produces a material flow from the near-surface material layer which was produced using machining. The roughness peaks are levelled and the roughness reduced. This creates a smooth and resistant surface. Impressive advantages ■ Complete machining in a single clamping set-up. ■ Cost-effective (compared to diamond burnishing). ■ Surface quality up to Rz 2 μm possible. ■ Adjustable (head or clearance angle), which enables different contact points between burnishing roller and workpiece. Operating conditions 29 ■ Suitable for materials up to a tensile strength of 1500 N/mm2 (approx. 45 HRC). ■ Suitable only under restricted conditions (not recommended) for hardened and high-strength materials. ■ The recommended maximum workpiece diameter is approx. 4 × ⌀ of roller = 60 mm. ■ Pre-turning surface of at least Rz = 10 µm (Ra = 1). ■ Workpiece radial run-out < 0.03 mm. ■ Infeed always in the workpiece. ■ The selected curvature of the roller should be greater than the radius of the pre-turning plate. ○ ISO code N N N P P P P P H H H M M S K ​ ​ ​ ap mm 0.005 – 0.02 0.006 – 0.04 0.01 – 0.08 0.01 – 0.1 0.01 – 0.1 0.05 – 0.2 0.005 – 0.02 ● ● f mm/rev 0.03 – 0.1 0.02 – 0.06 0.02 – 0.1 0.02 – 0.06 0.02 – 0.06 0.05 – 0.1 0.02 – 0.06 ● ● VC m/min 120 – 140 110 – 140 100 – 130 100 – 130 100 – 130 80 – 120 100 – 130 ● ● 909