Calculate machining time and material removal rate, Mechanical Engineering

Calculate Machining Time and Material Removal Rate

A hole of 40 mm diameter and 50 mm depth is to be drilled in a mild steel component. The cutting speed can be taken as 65 m/min and the feed rate as 0.25 mm/rev. calculate the machining time and the material removal rate.

Solution

Given  V = 65 m/min

f = 0.25 mm/rev

D = 40 mm

L = 50 mm

Spindle speed,

N = (1000 × 65 )/ (π× 40)

 = 517.25 rev./min

Breakthrough distance,

A =      40/2 tan 59 = 12.02 mm

Total length of drill travel, L = 50 + 12 + 3 = 65 mm

Time for drilling the hole = 65 / (0.25 × 520) = 0.50 minutes

The material removal rate, MRR = (π× 402 × 0.25 × 520 )/4

= 163362.82 mm3/min

= 163.363 cm3/min

Posted Date: 12/24/2012 5:01:34 AM | Location : United States







Related Discussions:- Calculate machining time and material removal rate, Assignment Help, Ask Question on Calculate machining time and material removal rate, Get Answer, Expert's Help, Calculate machining time and material removal rate Discussions

Write discussion on Calculate machining time and material removal rate
Your posts are moderated
Related Questions
Define the Disadvantages of Abrasive Jet Cutting Machines Slow material removal rate. Stray cutting and hence accuracy is not good. Abrasive powder cannot be reused

i am try to make a vacuum tube oscillator for a larger project but i need help where to find the supplies for it where can i find them

Pressure - Thermodynamics: While working in the system, thermodynamic medium exerts a force on boundaries of vessel in which it is kept. The vessel may be a container, or an e

Could I have 3 topic ideas with problem statement and research questions for each to pick one and send it to the expert? I have a project in Manufacturing Engineering, Master leve

fully automatic pnuematic cicuit explanation#Minimum 100 words accepted#

Motion of this particle: A particle of mass m is resting on a smooth horizontal plane as illustrated in Figure (a). It is associated to a spring which has a constant of k in f



PART A A new process plant for ore processing is currently being planned. The design is only in the first stage. However, three requirements have already been clearly stated:

Determine the greatest load carried by the composite springs: A composite spring contain two close-coiled helical spring associated in series, each spring has 10 coils at a me