385 Каталог HOFFMANN GROUP 2016 Слесарно-монтажный и измерительный инструмент Вер. 47 ENG Стр.385

Каталог HOFFMANN GROUP 2016 Слесарный и мерительный инструмент Стр. 385 0385 ENG Lab2u

Hoffmann Group 47 U 1 U Form 1A1 Synthetic resin-bonded surface and external cylindrical grinding wheels with CBN or diamond Surface grinding and external cylindrical grinding wheels, highly developed, with super-abrasives (CBN or diamond) in synthetic resin bonding. The high-strength, vibration-optimised VIB STAR grinding wheel base body permits a high damping for a smooth, even grinding process with high surface quality. Extreme performance improvement (G-factor) compared to conventional grinding media. The vibration-damping design of the carrier body significantly increases the working life. Continuous self-sharpening effect due to even power consumption and avoidance of cyclical sharpening operations. Application: General use for all materials from a hardness of about 58 HRC (limit of economic use). For surface grinding and external cylindrical grinding (straight longitudinal grinding, recess grinding). Can be used on all commercially available grinding machines for tool and die making and machine tool building, e.g. Jung, ABA, Blohm,Elb, Magerle, Ziersch &Hotz, Jones & Shipman. Cooling with emulsion or grinding oil is necessary. Superabrasive CBN / diamond grinding wheels are always used with less than half the wheel width compared to that for conventional grinding wheels. Note: These grinding wheels can be dressed on a steel block at an infeed of approx. 0.02 mm. Alternatively with a dressing tool No. 599600. Sharpen grinding wheels (opening upthe bonding) using sharpening stone No. 599840. External cylindrical grinding process Material Working speed vs=vc (m/s) Workpiece dimensions Workpiece rotational Infeed ae (mm) Lateral pass (longitudinal Feed rate (surface grinding) recom- mended maximum (mm) speed (rpm) Recess grinding ae (mm/min) Longitudinal grinding ae (mm/min) Surface grinding ae (mm/min) grinding, surface grinding) H vf (mm/mln) High-all oy, hardened steels, hardened HSS 25-30 63 0<25 25 < 0 < 50 150 80 Initial pass Interned, pass Finishing pass Spark erosion 1.5 0.5 0.1 5 turns 0.03 0.01-0.005 0.001-0.003 1-2 passes 0.002-0.02 0.001-0.002 1 3 passes 30 - 40% 10,000- 20,000 Carbide 15-20 63 0<25 25 < 0 < 50 200-300 180-250 Initial pass Interned, pass Finishing pass Spark erosion 1 0.3 0.1 5 turns 0.01-0.015 0.003 - 0.005 0.001-0.003 1-2 passes 0.002 - 0.02 0.001-0.002 1 3 passes 30 - 40% 10,000- 20,000 Suitable for/ 9 v, m/s X <900N X <1400 N X <55 HRC X <60 HRC X <67 HRC Carbide IN0X Ti GG(G) CuZn Plastics &GRP Wood Stone Varnish Uni I 593015-593440 593610-593950 CBN surface and external cylindrical grinding wheels for workpieces containing iron CBN coating for high performance grinding of long-chipping ferrous materials such as hardened chrome steels and HSS tool steels (including powder metallurgy grades) and nickel-based alloys. Specification: B126C50B-VIB-STAR HSS CBN Grinding media /Grit im B126 Shape Jmm Xmm s 593015 200X15X51 490.50 1A1 15 3 s 59 3025 225x15x51 529.20 1A1 15 3 59 3220 VIB STAR precision grinding 300x20x76.2 614.70 1A1 20 3 -593240 wheel CBN DxWxH (mm) 300X20X127 614.70 1A1 20 3 593350 350x20x127 817.20 1A1 20 3 s 59 3440 400X20X127 874.80 1A1 20 3 Diamond surface and external cylindrical grinding wheels for workpieces with zero iron content Diamond coating for high performance grinding of short chipping non-ferrous materials such as carbide, ceramic materials (PCS), hard coatings. Specification: D126C75B-VIB-STARW-Carbide. Grinding media /Grit Hm D126 I Shape Jmm Xmm 6 59 3610 200x10x51 383.40 1A1 10 3 59 3625 225x15x51 494.10 1A1 15 3 w593830 VIB STAR precision grinding uihaol niAMANT nvU/vU 300x20x76.2 536.40 1A1 20 3 s59 3820 wneei uiamaini uxwxn (mm) 300x20x127 536.40 1A1 20 3 s593940 350x20x127 732.60 1A1 20 3 6 59 3950 400x20x127 776.70 1A1 20 3 385