In a single point turning tool, the side rake angle and orthogonal rake angle are equal. ϕ is the principal cutting edge angle and its range is 00

• A. 00
• B. 450
• C. 600
• D. 900Answer: dExplanation: Interconversion between ASA (American Standards Association) system and ORS (Orthogonal Rake System) tanαs = sinφtanα − cosφtaniwhere αs = Side rake angle α = orthogonal rake angle φ = principle cutting edge angle = 00<900 i = inclination angle (i = 0 for ORS) αs = α (Given) tanαs =sinφtanα − cosφtan(00) tanαs = sinφtanα tanαs/tanα = sinφ