Investigation of The Effect of The Tap Geometry on The Al 5083 Aluminium Material in Tapping

Abstract

In this study, threading process with HSS taps was applied to Al 5083 H116 aluminium alloy, which is characterized by its ballistic properties and high corrosion resistance. Differences between screw crest and root dimensions, of the standard screw with calculated theoretically screw with the threads was examined in terms of cutting speed and tap geometry. The experiments were carried out in dry conditions with cutting speeds of 2, 4 and 8 m/min. The screws formed were cut in the direction of their axes on the electrical discharge machine and the sections obtained were viewed with an optical microscope. These images were transferred to the computer-aided design program and necessary measurements were made. As a result of the measurements, it has been observed that the use of helix angle taps in tapping Al 5083 H116 aluminium alloy enables the screw profiles to appear relatively smooth and to obtain results closest to the standard values.