12.15 Tool protuberance

If the stock allowance has been activated under settings (see 11.2.1) then the cells will appear to define the amount of protuberance δ0*. A cutting tool is provided with protuberance so that it will generate a relief in the tooth profile of the generated gear in the area of the tooth fillet. See Fig. 12.5. This relief allows the finishing shaving cutter or grinding wheel to run out without notching the root fillet. The protuberance of the cutter is usually made somewhat larger than the amount of finishing stock, i.e.,

δ0 > us ⋅ cosφn {αn}