A Precision Assembly In Plastic Injection Mould

Husaini, Abdullah (2008) A Precision Assembly In Plastic Injection Mould. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This project describe the method that was used to assemble plastic injection moulding. This project was done in the Manufacturing Workshop in Universiti Teknikal Malaysia Melaka (UTeM) that located at Fasa B. The material that been used in this mould project was Acrylic. This acrylic material was choose because of the characteristic that are transparent. The purpose of this project is to assemble plates that been provided to be one completed plastic injection moulding. The problem has been investigate such as machining with wrong dimension, off set, over cut, not enough cut, standard part cannot fit into plate and sharp edges. As a result, the plate must be remachining to get an actual dimension according to the drawing that been provided. Type of machining that been use in this project such as, milling machine, lathe machine, Computer Numerical Control (CNC) machine and Electrical Discharge Machine (EDM) wirecut. This project started from checking all plates to find out any defect or machining error or out of dimension in plastic injection mould. Every plate will be using quality measurement tool. It will be remachine if any defects found at mould plate. Various machines will be use such as milling machine, EDM machine, CNC, chamfering machine, drilling machine and lathe machine. During this project, all of learning outcome will be implement in every aspect of work. In order to get accurate result in measurement, various equipment have been used including vernier calliper, micrometer, high gauge, and Coordinate Measuring Machine (CMM). In this project also use a quality measurement equipment to get an accurate dimension. The equipment that involve in this project such as vernier caliper, micrometer, height gauge and Coordinate Measuring Machine (CMM). As a result, the measuring plate have been easier assembled with various mould component and finally one completed mould set was produce.

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