Design and Manufacturing of Honing Tool for Drilling Machine

Abstract

Honing is an abrasive machining process that is the "best kept secret" at many leading gun barrel producers, whether the end product is a fine sniper rifle, a police service pistol or an aircraft cannon. Simply put, honing produces a more accurate barrel a better overall product for lower cost.The Aim of the research is to design and manufacturing a honing tool for a drilling machine that can give require surface finish and dimensional accuracy as given by a honing machine and since we know that honing machine are very costly and every manufacturer cannot afford it on the other hand drilling machine are cheap as compare to honing machine and are available even in small workshops so our basic aim to reduce the cost of surface finish is fulfilled and we are succeed in getting the same surface finish and dimensional accuracy obtain by a honing machine. The contents of this report include design, manufacturing and working of honing tool and their study as well. It is well known that a good honing machine is very costly and all manufacturers cannot afford it. We have also seen that hand honing is resorted to by road side repairers and their cylinders lack in the requirements of circularity/cylindricity smoothness. The design is simple in the sense that any manufacture having a drilling machine and simple manufacturing facilities can manufacture on his own and achieve the necessary technical requirements of smoothness of surface as well as requirements of close tolerance on circularity and cylindricity.We use our tool in a drilling machine, because these are very cheap as compared to honing machines and are also available in every mechanical workshop. So our main aim is to reduce the cost of honing and at the same time achieve the desired accuracy as given by the honing machine i. e, in the range of 0.005 microns.