Drilling Process Quality Improvement by Grey Relation Analysis

  • Janak Suthar
  • S. N. TeliEmail author
  • Siddesh Lad
  • Vijaya Kumar N. Kottur
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)


It is very important to take an optimum process parameter to improve the quality of machined products with a maximum tool life and less defects. Production of hole by drilling operation is a key process in composite manufacturing because drilling operation is being performed after cure/solidification process. Poor hole quality leads to rejections up to 60% of all products manufactured. Carbon fibre-reinforced plastic (CFRP) composite have large range of application in aircraft, automotive and medical industries. This work deals with a selection of optimum process parameters in drilling of CFRP to minimize defect, thrust and torque by using grey relational analysis (GRA). After conducting the study using multi-objective GRA, gave optimum process parameters such as spindle speed—3200 rpm, feed rate—0.15 mm/rev., delamination—1.2311, torque—1.483331 N-m and thrust—7.897 N.


CFRP GRA Torque Thrust 


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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Janak Suthar
    • 1
  • S. N. Teli
    • 2
    Email author
  • Siddesh Lad
    • 3
  • Vijaya Kumar N. Kottur
    • 4
  1. 1.Vishwatmak Om Gurudev College of EngineeringThaneIndia
  2. 2.Bharati Vidyapeeth College of EngineeringNavi MumbaiIndia
  3. 3.Saraswati College of EngineeringNavi MumbaiIndia
  4. 4.D. J. Sanghvi College of EngineeringMumbaiIndia

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