machinability,milling,

1. AN OVERVIEW ON
MACHINABILITY STUDY IN
MILLING
Presented By-
Amit Banerjee
M.Tech (PE), 1st Year
Mechanical Engineering Department
Kalyani Govt. Engineering College

2. CONTENTS
 Introduction to machining
 Aim of this Seminar
 Fundamental of Machinability
 Factors Effect Machinability
 About Milling
 On Machinability in Milling
 Concluding Discussion
 References

3. INTRODUCTION TO MACHINING
 Machining is one of the manufacturing process.
 Essential finishing process.
 Removed excess material.
 Improved service life of the product.
 Improvement of machining is a challenging
work.

4. AIM OF THIS SEMINER
 Study various research work
 Find out the conditions effected the
machinability.
 Find out the optimum conditions which gives
better machinability.
 After that drawn a conclusion.

5. FUNDAMENTAL OF MACHINABILITY
 Defined as “ ease of machining”.
 Qualitative term
 It indicates how easily and fast a material
can be machined.
 Good machinability means economical
machining.

6. FACTORS EFFECT MACHINABILITY
Cutting
Force
Cutting Zone
Temperature
Tool Life
Surface
Roughness
Chip
Formation

7. Good
Machinability
means
Less Cutting
Forces
Long Tool
Life
Low Surface
Roughness
Low
Machining
Temperature

8. Machinability
Quantified by
Tool Force and
Power
Consumption
Method
Tool Life
Method
Machinability
Rating
Surface
Finish
Method

9. MILLING PROCESS
 Second most common method of metal cutting
 Multiple-toothed cutters
 Used for intermittent cutting
 Used mainly on flat, curved and irregular surfaces
Fig. 1 Milling Process

10. TYPES OF MILLING
 According to arrangement of cutter
a) Horizontal milling
b) Vertical milling
Fig. 2. a) Horizontal Milling, b) Vertical Milling

11.  According to direction of cutter rotation
a) Up milling
b) Down milling
Fig. 3 a) Down Milling, b)Up Milling

12. ON MACHINABILITY IN MILLING
 For measuring machinability most of the authors
take the parameters
a) Surface roughness
b) Tool life
c) Material removal rate
 The factors which have more effect on
machinability are
a) Cutting speed
b) Feed
c) Depth of cut
d) Nose radius

13. CONCLUDING DISCUSSION
 Cutting speed, feed and nose radius has more
effect on surface roughness
 Cutting speed, feed and depth of cut increase
MRR
 Cryogenic cooling gives better result on difficut to
machine material
 Conventional cooling gives better result on nimonic
alloy
 Machinability increase by using 3D grooves cutter,
PCD insert and beveling workpiece edge

14. REFERENCES
 A.B. Chattopadhyay , “Machining and Machine Tools” ,Willey India Pvt. Ltd., New
Delhi,2012
 https://en.wikipedia.org/wiki/Machinability Accessed on 15.10.2017
 https://www.uni-due.de/~kte010/modularte/html/main_modules/thoughtData/99/
mill%20%20SON.pdfAccessed on 20.10.2017
 https://en.wikipedia.org/wiki/Milling_(machining) Accessed on 02.12.2017
 http://nptel.ac.in/courses/112105127/pdf/LM-19.pdf Accessed on 25.11.2017
 M.A.U. Patwari,A.K.M. NurulAmim, W.F. Faris., “Prediction Model of Cutting Force
by Cutting Parameters Using Response Surface Methodology in Milling of Steel
AISI1020”, Competitive Manufacturing – Proceeding of the 2ndInternational and
23rdAll India Manufacturing Technology, Design and Research Conference, IIT
Madras,2008,pp. 791-797
 Y.S. Negi, V.P. Dutta, P.P. Marwaha, “Optimisation of Cutting Parameters on NC
Machine for Precision Milling of Aluminium Alloy (24345) with Carbide End
Mills”,18th All India Manufacturing Technology, Design and Research Conference,
IIT Kharagpur,1998,pp. 231-237
 C.S. Raju, R.D. Kumar, J.R. Jegaraj, R.K. Kumar, C.S.P. Rao, “Development of a
Rotary Cutter with different Inclination Angles for Machining of Aerospace
Materials”, Global Trends and Challenges in Design and Manufacturing–
Proceeding of the 3rd International and 24th All India Manufacturing Technology,
Design and Research Conference, Visakhapatnam,2010,pp. 111-116

15.  S. Moshat, A. Bandyopadhyay, P.K. Pal, “Prediction Model of Cutting Force by Cutting
Parameters Using Response Surface Methodology in Milling of Steel AISI1020”, Competitive
Manufacturing – Proceeding of the 2nd International and 23rd All India Manufacturing
Technology, Design and Research Conference, IIT Madras,2008,pp. 873-878
 M. S. Chowdhury, M. Rahman, “Performance Evaluation of CBN in High Speed
Milling”,Proceeding of the International Conference on Manufacturing, Dhaka,2000,pp.276-274
 Y. He, C.J. Li, J.H. Zhou, “Research on 3D Groove for Cutting Heat Distribution of Coated
Carbide Milling Inserts”, Proceeding of the 36thInternational Manufacturing Automation and
Systems Technology Applications Design Organisation and Management Research,
Manchester,2010
 Tawade, Rushikesh, S. Paul, “Effect of Cryogenic Cooling by Liquid Nitrogen Jet on End Milling
of Ti-6Al-4V”, 21st All India Manufacturing Technology, Design and Research Conference,
VIT,2005,pp. 20-27
 P.P. Saha, S. Das, “Influence of Edge Beveling on Burr Formation in Face Milling of an
Aluminium Alloy”, Proceeding of the 36thInternational Manufacturing Automation and Systems
Technology Applications Design Organisation and Management Research, Manchester,2010
 B. Poddar, D.R. Yadav, S. Paul, “Effect of Cryogenic Cooling on Machinability of Nimonic C-263
during End Milling”, Proceeding of the International Conference on Advances in Mechanical
Engineering, NIT Surat,2009,pp. 785-789
 P .Chockalingam, W. L. Hong,” Surface Roughness and Tool Wear Study on Milling of AISI
304Stainless Steel Using Different Cooling Conditions”, International Journal of Engineeringand
Technology Vol.2, No. 8, 2012,pp.1386-1392
 S. Saikumar, M.S. Shunmugam, “Parameter Selection in High Speed Finish End Milling of
Hardened EN24 Steel”, Global Trends and Challenges in Design and Manufacturing–
Proceeding of the 3rd International and 24th All India Manufacturing Technology, Design and
Research Conference, Visakhapatnam,2010,pp. 1193-1198
 K.N. Ramamurthy, J. Karunagaran, “High Precision Milling Cutter”, 17th All India Manufacturing
Technology, Design and Research Conference, Bangalore,1997,pp. 77-79