Hi baluncore
Thanks for the reply,
Yes but if the error produced in the Hobbing is too much for the stock left on the flank, the gear will not clean up all the profile error at the grinding operation and be scrap.
We work out a roughing size tooth thickness we hob too which gives us a...
Hi lnewqban
In a way yes, although the blades/ racks are made accurately but we don’t make new ones for each gear. Instead we use a blade we already have in stock ( with a base pitch as close to the gear we are manufacturing ) so the pressure angle and the module don’t have to match the gear as...
Hi everyone
To save money on jobs we manufacture racks which insert into a holder like a hob. These are ground accurately to the stated size over pins and angle. These blades/racks also have lead angles. We regularly hob gears that have a different module or pressure angle to the cutter (as...