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Diamond Internal Grinding Wheels (ID)
Electroplated diamond internal grinding wheels are used for jigs and internal grinding and precision grinding of small holes in tungsten carbide ceramics sapphire glass stones and other non-metallic. electroplated CBN internal grinding wheels are suitable for hard ferrous materials over 45HRC such as high carbon, high chrome steel tungsten carbide etc.
SPEEDS: Recommended speeds are between 25 and 30m/sec. for diamond wheels and 30 to 60 m/se. for CBN wheels.
FEEDS: suggested feeds for jig or internal grinding are from 0.005 to 0.01 mm per pass.
COOLANTS; coolants should be used wherever possible but can be used dry successfully. organic coolants are preferred for CBN tools.
USEFUL GRINDING HINTS ; Keep tool over bang as short as possible. one half of the grinding point should stay in contact at the end of the stroke.