Unapređenje dizajna mlaznica korišćenih u postupku kalupnog izlivanja zamak mašinom pod visokim pritiskom

V.F.C Sousa,F.J.G Silva,T Pereira,E Braga,L.P Ferreira,R.D.S.G Campilho

doi:10.5937/fme2104005s

Abstract

The injection of light alloys is an activity that requires a high effort on the part of Engineering to maintain its competitiveness. Due to the temperatures used, the wear of the components connected to this manufacturing process is quite intense, requiring a constant updating effort. This work was developed with a view to solving problems related to the excessive wear of injection nozzles used in the die casting process, and corresponding electrical resistances, with a view to increase its lifetime and improve the competitiveness of the process in the injection of low-cost parts in zamak for the automotive industry. To study and solve the problems of premature wear of the injection nozzles, the action-research method was used, which, through several iterations, allowed to arrive at an improved design of the nozzle, as well as the corresponding electrical resistance, thus increasing the life span of these components, also improving safety around the process and generating knowledge that can be transferable to other similar situations.

Highlights

Since 2018, the automotive industry has experienced some stagnation in the production and sale of motor vehicles, a situation generated by the lack of definition in the propulsion systems, and which tends to worsen with the pandemic situation experienced in 2020 and 2021
Implementation and Evaluation (Step 3 and 4): This subsection regards the implementation of the design changes to the nozzles and its evaluation, these are steps 3 and 4 of the Action-Research Methodology adopted for this work
An injection nozzle was produced with these chan– ges and subsequently tested and analysed in the same manner as the first nozzle

Summary

Introduction

Since 2018, the automotive industry has experienced some stagnation in the production and sale of motor vehicles, a situation generated by the lack of definition in the propulsion systems, and which tends to worsen with the pandemic situation experienced in 2020 and 2021. Due to the recent drop in sales, this competitiveness should still increase, in order that the different players in the market do not lose their market share to their competitors. In this respect, innovation is important, and it is necessary to eliminate all waste and make all processes as efficient as possible [8,9,10], by designing new equipment for waste processing, enabling its reutilization and fast and safe disposal [11]. The low cost and added value of Bowden cables has triggered a series of studies

Methods

Results

Conclusion