DefinePK

Abstract

Fasteners are a type of relationship which can have a significant impact on the assembly time of the system. Interference Press-fit Aluminum Nut (INPRENUT) is press-fit fastener designed to reduce pre-assembly setup time, pre-assembly setup time, disassembly time, reduce sharp object hazard and improve the quality of the product developed. Therefore, Design for Assembly (DFA) is one of the method used to study INPRENUT contribution in design efficiency improvement of the product assembly. Design efficiency manual fastener insertion in hollow tube follows Boothroyd and Dewhurst guidelines is analyzed and compared with the permanent rivet joint. A case study on wheel mobile robot platform construction is used to measure design efficiency of INPRENUT application in product assembly. The result shows the INPRENUT is able to simplified the design and reduce the part number in the assembly from 92 parts to 36 parts only. Design efficiency result comparison shows INPRENUT score is 7.46% whereas plastic bracket design of wheel mobile robot platform is 3.36%. This result give 222% of improvement. Furthermore, INPRENUT application shows wheel mobile robot parts assembly orientation is parallelled and easy to assembled.