Penerapan Metoda High Pressure Jet Cooling (HPJC) untuk Mengurangi Keausan Tepi Pahat pada Proses Membubut dengan Kecepatan Rendah

Abstract

High Pressure Jet Cooling (HPJC) is an alternative method to the ineffective and environmentally friendly flooding method for coolant distribution at the cutting contact area. This method is widely utilized in the machining process of materials that are difficult to cut or have superior mechanical properties using various tools that have high cutting speeds. At high cutting speeds, it will be difficult for coolant to penetrate the contact area. For this reason, in this study HPJC is used to turn low carbon steel material with a tool that has a low cutting speed. By using a tool capable of providing pressure variation in coolant delivery, flank wear as a result of the turning process was observed. The results were validated using ANOVA and Fisher Least Significant Differences methods. The results show that pressure variation can reduce the tool wear rate. However, the tools used were not sufficient to distinguish the change in applied pressure from the reduction in tool life. This is because the coolant is only concentrated on the main plane of the tool. As a result, other types of wear, namely nose wear, have increased.