Chipping tools - joke Technology GmbH - #24

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407 4 i 1,5 x Ø 1,5 x Ø Tel. +49 (0) 22 04 / 8 39-0 • Fax +49 (0) 22 04 / 8 39-61 • info@joke.de 4. Chipping tools // 4.1. Milling tools Solid tungsten carbide burins Shape Dimensions mm Order No. Price from 5 piece Price from 1 piece Rod Ø 3.0 x 75 0 517 472 Ø 6.0 x 75 0 517 474 Ø 8.0 x 75 0 517 475 Ø 10.0 x 75 0 517 476 Flat, halved on one side Ø 3.0 x 40 0 517 481 Ø 4.0 x 40 0 517 482 Ø 6.0 x 75 0 517 483 Ø 8.0 x 75 0 517 491 Ø 10.0 x 75 0 517 525 Pointed 60° Ø 3.0 x 40 0 517 487 Ø 4.0 x 40 0 517 488 Ø 5.0 x 50 0 517 496 Ø 6.0 x 75 0 517 489 Solid tungsten carbide burins Notes on solid carb. burins: Recommended grinding angles a b c Cast iron, steel 25° 15° 5° Brass, aluminium 25° 15° 5° Plastics with or without filler material 25° 15° 5° Light metals, copper, gold, silver 25° 15° 5° Recommended cutting speeds Cast iron, cast steel 60 - 100 m/min Steel 900 N/mm2 50 - 70 m/min Brass, aluminium 200 - 400 m/min Plastics with or without filler material 200 - 600 m/min Recommended forward feeds Sz Cast iron, cast steel 0.04 - 0.10 mm Steel 900 N/mm2 0.04 - 0.08 mm Brass, aluminium 0.08 - 0.15 mm Plastics with or without filler material 0.05 - 0.20 mm Solid tungsten carbide burins Pre-ground – quality K 10. For use with steel, grey cast iron, non-ferrous metals and plastic. The preworked profiles can be suitably ground with little expenditure and thus perfectly adapted to the specific application. Typical applications are for example forging die and mould making, copy-milling, engraving of inscriptions etc. Worn cutting edges can be easily sharpened. The angles must be adapted to the material to be worked.