The Effect Of Cutting Parameter To The Hole Diameter Accuracy Of AISI D2 Tool Steel In Dry Drilling Process

Latif, Mohamad Ammar Faiz (2015) The Effect Of Cutting Parameter To The Hole Diameter Accuracy Of AISI D2 Tool Steel In Dry Drilling Process. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This project focuses on measure the effect of cutting parameter on the holes diameter accuracy and to identify the optimum parameter for the dry drilling process of AISI D2 tool steel. CNC Milling Machine DMC 635 V Ecoline will be utilized in this project to produce a hole by undergoing the drilling process. The parameters selected to be focused are spindle speed, feed rate and types of drill bit. During conduct the drilling process, the coolant will be eliminated and the process will undergo in dry drilling. Different cutting tools which have been selected are High Speed Steel uncoated, coated with Titanium Nitride and Titanium Carbon Nitride. The diameter of the cutting tools is 1Omm. AISI D2 tool steel was selected as the work piece material. The size of the material is 1OOmm x 1OOmm with 1Omm thickness. The design of experiments in this project will be used Taguchi method with L9 of orthogonal array. Mean there are 3 factors at 3 levels of parameter. This method provides a simple, systematic, and efficient methodology for the cutting parameter. Then by using the Coordinate Measuring Machine (CMM) with four point circle micro method, the accuracy of hole diameter will measure. Then to determine which machining parameter is optimum, Taguchi method will be used by using Minitab software. This analysis will be investigated which drilling parameter significantly affected the diameter hole accuracy. Confirmation test with the optimal level of machining parameters are carried out in order to illustrate the effectiveness of the Taguchi optimization method.

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