Design A Low Cost Bread Toaster Using DFMA Method

Tham, Wai Teng (2017) Design A Low Cost Bread Toaster Using DFMA Method. Project Report. UTeM, Melaka,Malaysia. (Submitted)

Text (24 Pages) Design A Low Cost Bread Toaster Using DFMA Method.pdf - Submitted Version Download (2MB)

Abstract

This project is aimed to design a low-cost bread toaster by usmg Design for Manufacturing and Assembly (DFA) method.DFMA is a combination Design for Assembly (DFM) and Design for Manufacturing (DFM).It is a well-known systematic approach that used by concurrent engineering to improve the design efficiency,reducing the total cost and total assembly time.This can be achieved by minimizing the number of parts and simplifying the design of parts.Two different brands of bread toaster are selected and compared by using DFMA method.The detailed drawing,assembly view and exploded view of both existing bread toaster are done by Autodesk Inventor.The design efficiency for Pensonic PT-924 and Hanabishi HA-558 is 16.37%% and 17.18% respectively.The results show that Hanabishi HA-558 has higher design efficiency.Hence,a new design is proposed based on Hanabishi HA-558 bread toaster.The new design is designed based on DFMA guidelines.The new design bread toaster consists of 42 parts whereas 19 of them are theoretical minimum part count.The assembly time had reduced from 436.64s to 246.80s.The design efficiency of the new design bread toaster is 23.10%, where it has a 34.63% of increment compared to Hanabishi HA-558.The overall results show that the new design bread toaster has the highest design efficiency and lowest assembly time compared to the both existing bread toaster.It once again proved that DFMA had successfully improved the design efficiency and reduced the assembly time.In results,the objectives of this report are achieved.

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