Rancangan Perbaikan Electric Kettle dengan Metode Quality Function Deployment (QFD), Axiomatic Desgin (AD), dan Design For Manufacture and Assembly (DFMA)

Abstract

The use of modern technological advances is fully automatic to make human life inseparable from electronic equipment. Elec tricity-based kitchen utensils are the primary needs of the community such as electric kettles. An electric kettle is an automatic water heater that cuts off electricity when it reaches the boiling point. The use of electric kettles is found in kitchens, office pantrys, coffee bars, and community recreation places so that Medan Selayang sub-district, Medan City as a research location because of the service subcenter that functions as a center for trade/business activities and an education center based on the Rencana Tata Ruang Wilayah (RTRW) of Medan City for 2008-2028. However, damage to electronic components is an obstacle to work, so it takes time and repair costs. Damage to the electric kettle occurs in the thermostat, switch, heater plate ̧ and indicator light. So it is necessary to improve the design of the electric kettle with the Quality Function Deployment Phase I method to obtain technical characteristics and Phase II to obtain critical parts for improvement, namely thermostats and switches. Followed by the Axiomatic Design (AD) method to obtain design parameters (DPs) to improve the function of critical parts, namely ease of maintenance, efficiency design, ease of use, and minimize of snapfit. The proposed design based on DPs is compared to the initial design using the Design for Manufacture and Assembly (DfMA) method. Proposed improvements to the electric kettle are the implementation of snapfits and design changes that affect the number of components, assembly time, assembly cost, and design efficiency. The results of the comparison of the electric kettle design obtained a reduction of 2 units of constituent components, a reduction of 10.157 seconds in assembly time, a reduction in assembly costs of Rp33,904, and an increase in design efficiency by 0.73%