Presented by Bharath Kumar, V Sem Production Engineering, Velammal Engineering College, Chennai at Inventi (Technical symposium at SSN College of Engineering, Chennai). Co-authors: Dr.V.R.Manoj & Dr.P.Jawahar.

1. Department of Production Engineering
( V SEMESTER)
Co-Authors/Guides: Dr.V.R.Manoj & Dr.P.Jawahar

2.  Sustainability :“Meeting the needs of the present generation without
compromising on the ability of the future generation to meet those needs”.
 Sustainability plays a key role:
 Improving efficiency
 Encouraging environmental consciousness.
It has now become mandatory for Industrial processes to become sustainable in every
aspect of production.
Source: Gupta, Sustainable Machining of Titanium Alloys: A Critical Review,Proceedings of the Institution
of Mechanical Engineers Part B Journal of Engineering Manufacture, February 2016

3.  Enhanced machined
surface quality
 Increased Tool life
 Increased Productivity
 Efficiency and make
processes economically
better.
 Adaptive control of
machine’s energy
consumption.
 Better performance
without the need for
recycling

4.  CRYOGENIC MACHINING.
 Material cutting by assistance of high pressure jet cooling Lubrication.
 Conventionally low performing sheet moulding compounds
performed better without the need for recycling.
 Cooling or Lubrication.
 Validate energy consumption model using computer numerical control
tool path and numerical control code characteristics.
 Post and Pre-machining Assesment.

5.  Cryogenic machining presents an innovative method of cooling the
cutting tool or/and part during machining. More specifically, it relates to
delivering the cryogenic CLF (instead of oil-based CLF) to the cutting
region of the cutting tool, which experiences the highest temperature
during the machining process, or to the part to change the material
characteristics and improve machining performance .
 The LN in cryogenic machining system quickly evaporates and goes back
into the atmosphere, leaving no residue to contaminate the part, chips,
machine tool, or operator, thus eliminating disposal costs.

6. Potential benefits :
– Sustainable machining (cleaner,
safer, and environmental-friendly
method),
– Increased material removal rate
(MRR) with no increase in tool wear
and with reduced cutting tool
changeover costs, resulting in higher
productivity,
– Increased tool-life due to lower
abrasion and chemical wear,
– Improved machined part surface
quality/integrity with the absence of
mechanical and chemical degradation
of machined surface, etc.

7.  HPJAM presents an innovative method of lubricating and/or cooling the
cutting zone during machining.
 More specifically, it relates to delivering the oil-based or water-based CLF
in relatively small flow rates (compared to conventional flood CLF) under
extremely high pressure up to 300 MPa to the cutting tool tip. CLF under
such pressure can penetrate closer to the share zone, which experiences
the highest temperature during the machining process and cools it.
 HPJAM involves high pressure pump, high pressure tubing, and outlet
nozzle fixed besides tool holder. Some of potential benefits of HPJAM are:

8. Process Variants:
• Water-Jet
• Abrasive Water-Jet Machining
Principle:
• Fracture of workpiece by impact from high pressure water
jet.
Applications:
• Car Dashboard (Vinyl, Foam coverings)
• Car Interior (Plastic, Composite panels)
Specific Advantages:
• Lower flow rates of CLF in comparison to conventional
machining
• Better cooling and lubrication mechanisms
• Decreases the cutting tool-chip contact length
• Lowers cutting forces and extends tool-life
• Drastic improvement of chip breakability,
• Extension of machining parameters operational ranges
• Increased process productivity through higher MRR

9. • Minimizes Environmental impact
by significantly reducing fluid
usage and eliminating the need for
coolant treatment and disposal.
• Minute amounts of high-quality
lubricant directly to the cutting
tool/work piece interface
• Also called Near-Dry Machining
(less than 2% of the fluid adhering
to the chips)
• EFFECTIVE : Cutting applications
: Sawing, Milling, Turning and
Drilling.
• INEFFECTIVE: Abrasive
operations: Grinding, Honing and
Lapping.

10.  Improve Sustainability by modifying the
techniques involved in machining process .
 Continuous post and pre-machining Assesment
leads to decrease in wear which in turn
increases sustainability.
 Greatly influences the 3R concept:
-Reduce, Reuse and Recycle.
 Environmental friendly.
 Ultraefficiency.

11. SI.NO
Reference
ID
Title of Paper Authors Journal and Year
Published
1 A Sustainable machining approach for
CAD/CAM/CNC systems based on a
dynamic environmental assessment
HeryAndriankaja,
Julien Le Duigou,
Christophe Danjou,
BenoîtEynard
2015 ,Web of Science Data,
Journal of Engineering
Manufacture
2 B A new approach for machine's
management: from machine's signal
acquisition to energy indexes
Claudio Palasciano ,
Andres Bustillo ,
Paola Fantini,
Marco Taisch.
Journal of Cleaner Production,
7 July 2016
3 C Future perspectives of sustainable
manufacturing and applications based on
research databases
Hae-Sung Yoon,
Min-Soo Kim,
Ki-Hwan Jang,
Sung-Hoon Ahn
International Journal of
Precision Engineering and
Manufacturing
September 2016
4 D Smart Economy in Smart cities. Satyendra Singh , Michael Hertw
ig, Joachim Lentes
Advances in 21st Century
Human Settlements,
26 August 2016
5 E E-smart tool path machining strategy for
process planning
Vincent A. Balogun,Isuamfon F.
Edem,
Paul T. Mativenga
The International Journal of
Advanced Manufacturing
Technology,
09 January 2016
6 F Achievements of sustainable
manufacturing by machining
J. Kopac Journal of achievements in
materials and manufacturing
engineering,
June 2009.
7 G An Assessment of Sustainability for
Turning Process in an Automobile Firm.
Neeraj Bhanot,
P. Venkateswara Rao, S.G.
Deshmukh.
Science Direct,
2016
8 H Assessing the life cycle costs and
environmental performance of lightweight
materials in automobile applications
Robert A. Witik , Jérôme Payet,
Véronique Michaud, Christian
Ludwig, Jan-Anders.
Science Direct,
2016

12. Thank you….!!!
bharatkumarer@gmail.com