1113 Каталог HOFFMANN GROUP 2015 Инструмент режущий слесарный измерительный Стр.1113

Каталог HOFFMANN GROUP 2015 Tools Инструменты Ver 46 Стр. 1113 1113 ENG Lab2u

trflOUl Synthetic resin-bonded surface and external cylindrical grinding wheel with CBN or diamond Version Form 1A1 Application Surface grinding and external cylindrical grinding wheels, highly developed, with super-abrasive grinding material (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. 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 mould and die making and machine tool building e.g. Jung, ABA, Blohm, Elb, Magerle, Ziersch & Hotz, Jones & Shipman. Cooling with emulsion or cutting oil required. 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 up the bonding) using sharpening stone No. 599840. Surface grinding process Material Working speed vs vc (m/s) Workpiece dimensions (mm) Workpiece rotational speed (rpm) Infeed ae (mm) Lateral pass (longitudinal grinding, surface grinding) Feed rate (surface grinding) Vf (mm/min) Recom- mended Maxi- mum Recess grinding ae (mm/min) Longitudinal grinding a, (mm/min) Surface grinding a, (mm/min) High-alloy, hardened steels, hardened HSS 25-30 63 0<25 150 Initial pass Intermed, pass Finishing pass Sparking out 1.5 0.5 0.1 5 revolutions 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% 10000- 20000 25<0<5O 80 Carbide 15-20 63 0<25 200-300 Initial pass Intermed, pass Finishing pass Sparking out 1 0.3 0.1 5 revolutions 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% 10000- 20000 25<0<5O 180-250 Suitable for/ vc m/s AIMg <900 N <1400 N <55 HRC <60 HRC <67 HRC Carbide INOX Ti GG(G) CuZn Plastics &GRP Wood Stone Varnish Uni max 59 3015-3440- 59 3610-3950- CBN surface and external cylindrical grinding wheel for workpieces containing iron Version CBN grit for high performance grinding of long-chipping ferrous materials such as hardened high-alloy chrome steels and HSS tool steels (including powder metallurgy grades) and nickel-based alloys. Specification B126C50B-VIB-STAR HSS. Grinding medium / grit tjm B126 U (mm) X (mm) & 593015 200x15x 51 15 3 a 59 3025 flHOUT VIB STAR precision 225X15X51 15 3 s 59 3220 300X 20 X 76.2 20 3 k 59 3240 grinding wheel CBN DxWxH (mm) 300x20x127 20 3 k 59 3350 350x20x127 20 3 5 59 3440 400x20x127 20 3 Diamond surface and external cylindrical grinding wheel for workpieces with zero iron content Version Diamond coating for high performance grinding of short chipping non-ferrous materials such as carbide, ceramic materials (PCS), hard coatings. Specification D126C75B-VIB-STAR W-Carbide. Grinding medium / grit tjm D126 U (mm) X (mm) k 59 3610 200X10X 51 10 3 a 59 3625 VIB STAR precision 225x15x51 15 3 & 59 3830 300x 20 x 76.2 20 3 s 59 3820 grinding wheel DIAMANT DxWxH (mm) 300X20X127 20 3 a 59 3940 350X20X127 20 3 k 59 3950 400X20X127 20 3 Main catalogue Hoffmann Group 46 1113