801 Каталог GUHRING 2016 Режущий инструмент для обработки наружной и внутренней резьбы Стр.789

Каталог GUHRING 2016 Режущий инструмент для резьбы Стр. 789 0801 Lab2u

APPLICATION EXAMPLES Hard machining taps for hardened steel (45 - 55 HRC) For tapping operations in materials with a tensile strength in excess of 1200 N/mm2 we have developed a HSS-E-PM tap with TiCN coating. The special design makes the process reliable production of threads in hard materials possible and provides excellent tool life. Suitable for applications in the mold and die industry as well as for various machine or automotive components following heat treatment. Recommended cutting speed vc = 2 -8 m/min dependent on the hardness of the component. Process reliable thread production thanks to short chips In order to achieve absolute process reliability and a long tool life in series production of high tensile strength steels (850-1250 N/mm2), as for example a crankshaft, short chips are essential. This is only possible in combination with bright flutes / corrections. For this, Guhring provides the ideal solution in the standard range with Guhring nos. 1188, 1194 and 1200. Universal taps with coolant ducts for short-chipping materials (GG, Al, steel) Usually, with a tap the chips are evacuated from a blind hole via the spiral flutes. Cast iron, AlSi-alloys, brass and copper alloys are short-chipping materials. Straight-fluted taps are applied for such materials. With taps with coolant ducts, the coolant evacuates the short chips from the blind hole. Our new straight-fluted M taps (Guhring no. 4448) and MF taps (Guhring no. 4472) with coolant ducts are especially suitable for short-chipping materials. Evacuating long chips from steel components via the spiral flutes is an increasing problem. Consequently, the aim is to produce short chips with straight-fluted taps and evacuate them from the blind hole with the cooling lubricant. The tap with IC in the machine spindle achieves an improved tool life and surface quality of the thread. Typical applications are the machining of gearboxes, cylinder blocks and heads, crankshafts, pump housings, hydraulic components etc. GUHRING 789 Technical section