The effects of assembly design parameters on assembly time

Sylvester Sabuk, Precilla (2015) The effects of assembly design parameters on assembly time. Masters thesis, Universiti Teknikal Malaysia Melaka.

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Reducing cycle time has an impact in many aspects such as productivity and capacity of industry. There are many factors affect the cycle time, among them are workstation or workplace design, tools, operators and working conditions. The lesser is the time to produce product, the higher the productivity. The effect of assembly design parameters such as workstation design, working posture: standing and sitting and jig design on plug assembly time were studied in this thesis. The gender was also included as one factor to investigate in this study. The parameters or factors involved were three jig designs i.e. rectangular, horizontal and vertical; number of holders per jig: three, four, five holders and working postures: standing and sitting to assembly time. The study also explores the model relationship of all main factors and their interactions. A full factorial design of experiments of four factors with 2 and 3 levels was introduced. Ten participants consisting of five males and fives females were asked to assemble the plugs (model BS 1363). Each participant had to perform 10 replications for each 18 different set of experiment. The assembly time was recorded upon the completion of plug assembly task for each jig setting. This experiment recorded 3600 observations. The study concluded that all main factors, two and three way interaction factors significantly contributed to assembly time. The lowest assembly time for jig design setting is the rectangular jig with 3 holders per jig in the sitting posture by male operators. Meanwhile the highest assembly time was the 5 plugs holder per jig with horizontal shapes in standing posture which was performed by the female operator. The study also generates the regression model that describes the relationship of all factors involved. Validation of the model also was performed by taking some runs of experiments. The average deviation of actual data and predicted is less than five per cent.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Assembly-line methods, Jigs and fixtures, Assembly Design Parameters, Assembly Time
Subjects: T Technology > T Technology (General)
T Technology > TS Manufactures
Divisions: Library > Tesis > FKP
Depositing User: Mohd Hannif Jamaludin
Date Deposited: 04 Aug 2016 07:22
Last Modified: 13 Jun 2022 12:51
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