The flanks of teeth of rack-type gear cutter used for cutting involute gear profiles are:

The following data refers to an orthogonal machining of mild steel with a single point $$HSS$$ tool. Rake angle of tool $$ = {10^ \circ },$$ uncut chip thickness $$=0.3mm,$$ width of cut $$=2.0mm,$$ single plane shear angle $$ = {36^ \circ },$$ shear strength of mild steel $$=450$$ $$MPa,$$ using Merchants analysis

The shear force in cutting will be

The drawing shows a machined shaft. The purpose of providing rounded grooves at $$M$$ and $$N$$ is to

Match the mechanism with Machine