Calculate machining time and material removal rate, Mechanical Engineering

Assignment Help:

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


Related Discussions:- Calculate machining time and material removal rate

THERMODYNAMICS, COMPRESSOR MOSTLY USED FOR SUPERHEATING OF IC ENGINES IS CA...

COMPRESSOR MOSTLY USED FOR SUPERHEATING OF IC ENGINES IS CALLED ----------COMPRESSORS

Torque carried by the hollow shaft, Torque carried by the hollow shaft: ...

Torque carried by the hollow shaft: A hollow and a solid shaft of similar material have the same weight when the inner diameter of the hollow shaft is half its outer diameter.

What is the function of fuel feed system?, (a) What is the function of fuel...

(a) What is the function of fuel feed system? (b) What are the functions of a carburettor? (c) List main components of a carburettor. (d) Describe the working principle of

Beams, a beam ABC is simply supported at A and C and caries a couple equal ...

a beam ABC is simply supported at A and C and caries a couple equal to 100kN applied clockwise at B

Engineering plastics, Engineering Plastics In this time this has becom...

Engineering Plastics In this time this has become clear to know, the plastics are utilized as engineering materials for machine parts, casting and bodies and for structure mai

Preliminary analysis in mining industry, I have selected Mining Industry an...

I have selected Mining Industry and have selected three rival Mining Companies to conduct a preliminary analysis. I have done my bachelor's degree in Mechanical Engineering, I have

Vessel rigging analysis, Impact Factor on Vessel rigging analysis? Unle...

Impact Factor on Vessel rigging analysis? Unless otherwise specified by the user, a minimum impact factor of 1.5 shall be applied to the lift weight for designing the lifting d

Spot welding of different metals, Spot welding of different metals Thou...

Spot welding of different metals Though, mild steel is t he metal most commonly used, any prime metal or alloy can be successfully spot welded provided that machine with suitab

Moment of Force, How do I solve this question? http://i195.photobucket.com...

How do I solve this question? http://i195.photobucket.com/albums/z154/NanazRulez/20120802_155751.jpg

Torsion lenght, Thin wall round tube has diameter of 60mm. The end of it wi...

Thin wall round tube has diameter of 60mm. The end of it will be compressed to square for. How many percents torsion strenght will become lower at the end tube?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd