Abstract
The designing process of a new product includes various stages, one of which is the evaluation of an idea thought prototype manufacturing. The use of additive manufacturing consists the most efficient and effective way for prototype manufacturing. In order to maximize the benefits from the use of additive manufacturing, we should choose the suitable printing parameters. A vital parameter for defining the quantity of raw material used and the model solidity is the inner wall thickness. Depending on the selected technique of additive manufacturing, the thickness of the inner wall may differ. In this study we initially print furniture models with different wall thicknesses using the Inject Binder technique and then we check their durability and resilience by compression tests. Evaluating the study results indicate the hollow printed specimens have high durability during compression tests and can be used to evaluate a design idea. Using the facts derived from lab tests we perform Topology Optimization studies under different circumstances to evaluate the method and come up with the optimal design solution. Initially, the Topology Optimization study concern only the table surface and not the whole model. The following studies were performed for the whole model, different constraints and load cases defined. Then, the optimized models are redesigned in order to improve their durability. The performed studies show that Topology Optimization is a powerful tool, which is able to support the designers/ engineers to take the right decision during the design process. Doi: 10.28991/HIJ-2020-01-04-03 Full Text: PDF
Highlights
A redesign process starts in order to improve the structure of the models and take into account issues that could not be included in topology optimization, and, the results have been checked again with respect to their strength (Figure 2)
A well-established design process consist from three general phases: a) Learn, b) Design, c) Prototype
For both reasons a fast, cheap and accurate way to create prototypes is the use of 3D printing / Additive Manufacturing (AM) techniques
Summary
Design Process and Methodology In the late 19th early 20th century architects and designers believed that building and product design should reflect their usage. The American architect Louis Sullivan was the strongest supporter of this principle, as he analyzed in his article titled ‘The Tall Office Building Artistically Considered’. Prior to WWII the modernist architects dissented from the above principle. They regarded decorate elements -which architects call ornaments- as super superfluous in modern buildings. Sullivan did not question this theory besides the building he designed were brimming with Art Nouveau and Celtic decorative features. The American auto industry put an end to the introduction of aerodynamic forms to mass production. Some car resellers claimed that the aerodynamic shape would end up to a
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