Application of heat pipe and nano fluid in the structure of drill for
drilling process: Experimental and mathematical evaluation
Abstract
In this research, the application of nanoparticles for cooling in the
drilling operation is investigated, experimentally. In addition, the
mathematical model is derived for perdition of temperature profile in
drilling zone. A solid cylinder which is equipped by heat pipe is used
for evaluation of drill performance. The numerical results of the
mathematical model are compared with the experimental data, finally.
Studies show that nano fluid injection into the heat pipe has a
significant effect on the reducing temperature profile. The results show
that when the distance between the tip of the heat pipe and the tip of
the drill per drill length is equal to 0.15, also the cutting length per
the drill diameter is 1 and the input heat flux is 0.33 w/m.K, The best
ratio of the heat pipe diameter to the drill diameter will be 0.1. In
this study, the different types of greases between heat pipe and inner
surface of drill have been used and their influence on temperature
profile has been shown.