Optimization of Process Parameters on Reliability for Twist Drill life in Drilling

The process of material removal is one of the most extensively used mechanical processes in the industry. The process parameters such as speed, feed and point angle are experimentally investigated to maximize the tool life, which are the major machining conditions on reliability for Twist Drill life. For a company to succeed in today's highly competitive and technologically complex environment, it is essential that a company must know the reliability of its product, and able to control it, in order to produce products at an optimum reliability level. This yields the minimum life cycle cost for the user, as well as minimizing manufacturing cost of a product, without compromising the product's reliability and quality. In this project, reliability analysis is made for cutting tool used for heavy and complex manufacturing. Since the downtime in transfer line due to tool failure is about 1/3 of the down time defined as the non-productive idling of the transfer line system. The ability to anticipate effectively the end of the useful tool life results in a better tool replacement strategy. This article studied effect of process parameters on reliability which have most influence on the tool life, which are predicted and optimized using rational Boolean Search.