The Complexity of the Assembling Process and Its Implication for Components Order

Abstract

The purpose of Design for Assembly (DFA) is to develop the elements that affect the assembly process to shorten or reduce assembly time. To decline or streamline assembly time, in addition to the material used by each component, the sequence of parts during the handling and insertion process greatly influences the formation size of the alpha (α) and beta (β) angles. These two elements are the basis or reference for determining the time allocation of each component during the assembly process. First, in the calculation process, identify the number of pieces (N) and the diversity of components (n) of a product to be assembled. The second procedure is to identify a product's possible sequence of components during the assembly process. The third procedure is to determine the aspects that significantly affect the arrangement of components during the handling, insertion, and fastening processes. The elements that affect the handling process (Ch) include; shape, geometry, thickness, symmetry, and size. While the elements that affect the insertion process (Ci) are; holding down, alignment, insertion resistance, accessibility and vision, mechanical fastening processes, non-mechanical fastening processes, and non-fastening processes. Furthermore, the complexity index (difficulty level) of the product to be assembled (CI product) can be calculated. From these results, the complexity of the assembly process (C assembly process) can be calculated for every possibility that exists. The complexity index values and the complexity of the assembly process obtained are then ranked based on the smallest value, with the assumption that the smaller the value of the complexity of the assembly process, the assembly process will be relatively easy and the assembly time will be short. Thus, the rating obtained can be used as material for recommendations or suggestions to parties who need it. In this case, the assembling industry, assembling units or divisions to make arrangements for line assembly to make it more effective so that the trial and error process error) The preparation and structure of the line can be done to save time and costs for the assembly process.