Heat-Affected Zone Investigation During the Laser Beam Drilling of Hybrid Composite Using Statistical Approach

  • Akshay Jain
  • Bhagat Singh
  • Yogesh ShrivastavaEmail author
Research Article - Mechanical Engineering


In the present work, basalt–glass hybrid composite has been fabricated and machined using laser beam drilling, to predict a safe machining zone pertaining to high drill quality with minimum heat-affected zone and maximum hole circularity. The prediction of the zone has been done by mathematical modeling using response surface methodology. The obtained zone has also been validated by performing more experiments. Moreover, the dependency of hole circularity and heat-affected zone on input parameters has also been discussed. From the results, it is evident that the obtained zone is capable of minimizing the heat-affected zone with acceptable hole circularity. Moreover, the behavior of input parameters is non-monotonic in nature.


Hybrid composite Heat-affected zone Precise drilling Basalt–glass composite 



The authors are very grateful to Dr. B. N. Upadhayay, SOF, Solid State Division at the RRCAT (Raja Ramanna Centre for Advanced Technology), Indore (M.P), for providing the experimental support for this work.


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© King Fahd University of Petroleum & Minerals 2019

Authors and Affiliations

  1. 1.Mechanical Engineering DepartmentJaypee University of Engineering and TechnologyGunaIndia

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