Ana Syahidah Mohd Rodzi, Abdul Rahman Hemdi, Dzullijah Ibrahim, Ahmad Faiz Zubair, Leisaruamin Leaihs, Wan Mohd Syafiq Wan Seman and Amir Shahrul Ishak
Keywords: face shield, injection molding, 3D printer
Abstract: In supporting the high demand of face shield for the use of frontliners in fighting the Covid-19 pandemic, increasing the production quantity is inevitable. To cover the demand of face shields usage in nearby areas including for health workers, schools and agencies, more face shields were required. The production of the face shields by using a 3D-printer is time consuming and low in quality. Using the capacity of three 3D printer machines, approximately 80 pieces of face shields were able to be produced in a day. Furthermore, for the printed parts, post processes are needed in order to separate the face shields from a bulk unit into single pieces. Thus, a better approach needs to be initiated. This paper describes the improvement made in the production of face shields from 3D printer to injection moulding processes. In changing the production process, some modifications of the design and the parameter setting had been done. To suit the mould of the available 23-ton injection mould machine, minor design improvement had been done to the mould. The result showed that the productivity of the product had significantly improved by 1150 percent. The production is able to achieve an output of more than 1000 pieces of face shields a day. From the tensile strength experiment done, the maximum tensile force for the injection molding part is 415.6N, compared to the 3D printer part maximum tensile force is 53.12N.
