Machining time Formulas for turning External face machining Facing Grooving Parting Расчетные формулы для расчета машинного времени при точении

Machining time Formulas for turning External face machining Facing Grooving Parting Расчетные формулы для расчета машинного времени при точении

Machining time Formulas for turning External face machining Facing Grooving Parting Расчетные формулы для расчета машинного времени при точении _ различных видах токарной обработки _ 1 Constant revolution per minute T = 60 x L fn x n Constant cutting speed T = 60xnxL xD 1000 x fn x vc T: Machining time sec L: Cutting length mm fn: Feed per revolution mm/rev n: Revolution per minute min-1 D: Diameter of workpiece mm vc: Cutting speed m/min Turning L External face machining 2 Constant revolution per minute T: Machining time sec L: основного Cutting length mm fn: Feed per revolution mm/rev n: Revolution per minute min-1 D1: Maximum diameter of workpiece mm D2: Minimum diameter of workpiece mm vc: Cutting speed m/min N: The number of pass = (D1-D2)/d/2 Facing L Constant revolution per minute T = 60 x (D1 - D2) x N 2 x fn x n Расчетные Constant cutting speed T = 60xnx(D1 + D2) x (D1 - D2) x n 4000 x fn x vc T: Machining time sec T1: Machining time before the maximum rpm sec L: Width of machining mm fn: Feed per revolution mm/rev n: Revolution per minute min-1 D1: Maximum diameter of workpiece mm D2: Minimum diameter of workpiece mm vc: Cutting speed m/min N: The number of pass = (D1-D2)/d/2 Grooving Constant revolution per minute T = 60 x (D1 - D2) 2 x fn x n T: Machining time sec T1: Machining time before the maximum rpm sec L: Width of machining mm fn: Feed per revolution mm/rev n: Revolution per minute min-1 D1: Maximum diameter of workpiece mm D2: Minimum diameter of workpiece mm vc: Cutting speed m/min Parting 0D3 0D1 Constant revolution per minute T = 60 x D1 2 x fn x n Constant cutting speed T = 60 x n x (D1 + D3) (D1 - D3) 4000 x fn x vc Ta = T1 + 60 x D3 2 x fn x nm T: Machining time sec T1: Machining time before the maximum rpm sec T3: Machining time till maximum RPM sec fn: Feed per revolution mm/rev n: Revolution per minute min-1 nmax: Maximum revolution per minute min-1 D1: Maximum diameter of workpiece mm D3: Maximum diameter at maximum RPM mm vc: Cutting speed m/min Technical Information 11