Calculate the machining time and the material removal rate, Mechanical Engineering

Calculate the Machining Time and the Material Removal Rate

A through 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)

 = 527.35 rev/min

= 520 rev/min

Breakthrough distance

A =40 /2 tan 59o

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 = (π× 402 × 0.25 × 520) /4

= 163362.82 mm3/min

= 163.363 cm3/min.

Posted Date: 12/26/2012 8:15:54 AM | Location : United States







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

Write discussion on Calculate the machining time and the material removal rate
Your posts are moderated
Related Questions
Q. can you explain Shell molds? These molds are prepared by pouring a mixture of sand and thermosetting resin over the heated surface of a metallic pattern, which results into

Explain the process of a Pneumatic Proportional Controller and get its transfer function. What modification is needed to make it function as a proportional plus derivative controll

what is internal combustion engine

Q. Air-Gas Cross-Limiting and Air-Gas Ratio Control? The Steam Generator firing demand signal is directed to two discrete signal selectors. A low signal selector ensures that

Figure shows rough sketch of a selected representative critical part of a "Quick Coupler" (of an earth moving equipment) made with cast steel.  You need to perform FEA analysis to

what is cone friction?

what is the working princile of high preesure die casting process

Argon Argon is approximately one and one third times as heavy as air and ten times heavier than helium. Argon, after leaving the torch nozzle, forms a blanket over the weld

Determine reactions of the overhanging beam: Determine r eactions at points A and B of the overhanging beam as shown in the figure given below.

The end plate of a tube is made from 4mm thick steel plate as seen in the figure below. If a 30mm diameter rod welded to the plate is subjected to a force of 10kN, what would be th