Production Engi...

The rake angle required for machining brass by high speed steel tool is

In a single point turning operation with a cemented carbide and steel combination having a Taylor exponent of 0.25, if the cutting speed is halved, then the tool life becomes.

In an orthogonal cutting the following observations were made. Uncut chip thickness 0.25 mm, t₂ = 0.75 mm. F_C = 900 N, F_T = 450 N, V = 1 m/sec, rake angle 0° then

In a machining process, the tool regrind time is 10 minutes and it takes 5 minutes to change the tool. The running cost of machine is Rs. 0.5/min. If tool-life exponent n = 0.4 and c = 250, then the optimum cutting speed is (in m/sec) ________.

Let tool life index (n) = 0.5 and Constant (C) = 550 in the Taylor equation for tool wear, then what will be the percentage increase in tool life if the cutting speed is reduced by 35% ________

In a turning trial using orthogonal tool geometry a chip length of 84 mm was obtained for an uncut chip length of 200 mm. The cutting conditions were V = 30 m/min, t­₁ = 0.5 mm, rake angle = 20°, cutting tool HSS.

A rod of 600mm length of diameter of 80 mm is turned with HSS tool. If the Taylor’s tool life parameters for n = 0.2 & c = 120. If tool change time & machining time are 8.0 min & 12.0 min respectively. Then, find the cutting speed (m/min) for maximum production rate?