Abstract:
This research aims to produce pistons a lighter and stronger piston, even in high
compression and high engine speed conditions. The piston fabrication process is carried out by
super forging using Aluminum as a raw material with a compound choice by Silicon or
Magnesium. In addition, the outer layer of the piston is covered by molybdenum with the coating
process as nanotechnology to prevent corrosion. Furthermore, the finishing is controlled by the
programming system machine named CNC (Computerized Numerical Control). In addition to
CNC, the automation system is carried out by the KIRIU machine which is also used in this
study. The results of this study show that the use of Al-Si alloy base material has better piston
quality and able to withstand high compression or high engine speed. Then, the Al-Si
superforging piston compared to the two final automation processes of CNC and KIRIU. The
evaluation results have proved that the KIRIU machine provides high accuracy and the actual
production increases by 20% compared to CNC.
