Posted by Ron on October 10, 2005 at 11:23:47:
In Reply to: Gear hobbing posted by Basukumar H.K on October 05, 2005 at 09:26:05:
The starting point I use for HSS hobs is; divide 4500 by the hob diameter which gives the hob spindle rpm to use. The 4500 is a constant based on a cutting speed of 15 meters/minute, suitable for high tensile and dry cutting of cast iron. The equation is: rpm = 300 X meters/minute divided by the tool diameter.
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