661 Каталог ISCAR 2017 Вращающийся режущий инструмент и инструментальная оснастка Стр.657

Каталог ISCAR 2017 Ротационный инструмент Стр. 657 0661 ENG Lab2u

USER GUIDE ISCAR Drill Penetration Instructions on Milling or Turning Machines: Note: The following procedure (1-4) is recommended for up to 400 mm hole depths using MNCNT ...-400... drills For hole depths between 400 up to 800 mm, use MNCNT .-800. drill only after reaching 400 mm depth with an MNCNT .-400. drill. 1. Drill a pilot hole 0.5xD deep with a short drill in the same diameter as of the SUMOGUN drill. 2. Enter the pre-hole at slow speed, feed and 50 RPM until 1-2 mm before reaching the bottom. 3. Activate the cooling system and increase rotation speed to recommended drilling speed, maintain for 2-3 seconds, then continue at recommended drilling feed. No pecking is required. Apply maximum possible coolant flow rate. 4. After having reached the required depth, reduce speed to 50-100 RPM while exiting from the hole. 1. Pre-hole 1xD deep for centering 2. Slow rotation and feed while entering to the pre-hole 3. Maintain for 2-3 seconds and activate the cooling system 4. Continue drilling at recommended cutting conditions Pressure and Coolant Flow Rate for SUMOGUN Q l/min SUMOGUN Drilling Range P bar Drilling Diameter GUNDRILL Machines Milling and Turning Machines Guidelines for Optimal Gundrill Performance Coolant pressure and flow It is recommended to use a strong coolant flow for efficient chip flushing and cooling of the cutting edge Filtration It is recommended to use a filter under 20 pm. Note: Improper filtration may result in interrupted flow of the lubricating oil. This creates a sticky surface on the bearing pads and leads to premature wear of the tool and overloading the coolant pump and spindle seals. Temperature of the coolant The coolant temperature should be between 20 and 22° C. Note: Above 50° C the viscosity of the coolant is reduced by 50% and becomes ineffective. Gundrill Lubrication and Cooling The best performance is obtained by using oil. On equipment that uses water-soluble fluids (i.e. machining centers and CNC machines) a concentration between 10% and 15% is recommended. 657 GUNDRILLS