287 Каталог HOFFMANN GROUP 2016 Слесарно-монтажный и измерительный инструмент Вер. 47 ENG Стр.287

Каталог HOFFMANN GROUP 2016 Слесарный и мерительный инструмент Стр. 287 0287 ENG Lab2u

Hoflmann Group 47 Grinding and polishing points GARANT/ LUKAS/PFERD grinding points (OSA certified and tested to DIN EN 12 413) are specially designed for hardness, bonding, grit type, and grit size for the specific applications and cover a very wide application range. Minimal radial run-out ensures vibration-free grinding which is good for man, machine, and component. GARANT grinding points are generally suitable for edge and surface grinding and provide you with maximum material removal rates, long service life, and a consistent surface finish quality of the component. GARANT polishing points are characterised by a long service life and quick production of fine, even surface finishes. Finest polishing grades or surfaces right up to mirror finish can be achieved, depending on the version used. GARANT polishing points can be profiled using dressing sticks. JTSUl I Grinding medium Brand No. Low-alloy steel Stainless steel High-alloy steel Cast (grey temp.) Tempered steel Hardened steel Titanium alloys/ nickel alloys Alu. / non-ferrous metals Grit Degree of hardness Bonding Recommended circumferential speed v in m/s Application Electro-car- borundum AR Standard aluminium oxide AN i&Gaiait' 550100 - 551200 551600 O Coarse (24- 60 grit) fine (46-100 grit) Coarse (24 - 46 grit) Medium Soft Ceramic Artificial resin 30-50 40-50 Grinding Grinding Mixed alum, oxide Mixed alum, oxide AW-AN AD-AW jfbGaianf 551700 Coarse (30 grit) Medium Ceramic 40-50 rinding 550310/551510 551790/551791 Mixed alum, oxide AW-CER Silicon carbide SiC l-UK kS 551780 Aluminium oxide/ polishing rubber 551850 - 551922 Fine (100 grit) Medium Ceramic 10-30 Fine grinding, demurring, edge grinding Coarse (46 grit) fine (80 grit) Soft Ceramic 30-50 Grinding Fine (80 grit) Soft Ceramic 25-40 Grinding o Coarse (80 grit) Medi- um (120 grit) Fine (220 grit) Soft resilient Soft rubber 10-15 Fine grinding (not for edges or rough surfaces ) Polishing felt with grinding compound jfoEaianl 552250 Fine (552250J50) very fine (552250_280) Very soft 5-10 Polishing Polishing felt with diamond compound 552330 o Very fine up to polishing Very soft 1-3 Polishing )The larger the grinding point, the coarser the grit. Speeds Maximum permissible speeds (for grinding points No. 550100-551791 to DIN EN 12413). Each package of grinding points (10 piece) includes information about the maximum working speed in conjunction with the free shaft length LO. Grinding point Collets Lo Permissible maximum speed in rpm for a free shank length LO of Recommended speeds rpm 200000 100000 90000 80000 70000 60000 50000 40000 30000 25000 LO 10 15 20 mm rpm 64 53 45 X1000 Important The maximum permissible speed relates to the unsupported shank length LO, i.e. depends on the mounting. 10 mm minimum clamped length in the collet must be maintained in all cases. Max. permissible circumferential speed vmax = 50 m/s. Grinding medium 10000 9000 8000 7000 6000 5000 4000 Short code Short code Luk B Pink electro-carborundum = AR EK AR Electro-carborundum dark red = AD EKR AD White electro-carborundum = AW EKW AW Standard aluminium oxide = AN NK AN Ceramic grit = CER CERAMIC CO Green silicon carbide =SiC SiC-ALU CN Mixed grit AN+AD+AW = AD-AW NDW ADW Mixed grit AW+AN = AW-AN HK AWN Mixed grit AW+CER = AW-CER CERAMIC AWC0 1 \ JO< < ko I °o l °x % y % t \ t ❖ V 1 1 \ /s F faV it 'J % 1 °n \ 1 15 V e 01 & 10 2 3 4 5 6 7 8 9 10 13 16 20 25 32 40 50 Tool 0 D (mm) Example Grinding points No. 551700 ZY 3232 (mixed alum, oxide AW-AN), Head 0:32 mm. Recommended circumferential speed: 40 - 50 m/s. Recommended speed range: 24,000 - 30,000 rpm. 287