Study on the Key Techniques of Designing Optimization and Manufacturing of Functional Part's Structure Based on Selective Laser Melting Technology

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Abstract

In order to optimize the existing door handle functional parts, force analysis and topology optimization to design the functional parts which meet the characteristics of internal force distribution are adopted. The selective laser melting technology (SLM) is used to manufacture the parts, and through the test of dimension accuracy, mechanical performance and quality, 52.5% weight reduction effect is achieved. The mechanical properties of optimized finished parts reach those of traditional castings and forgings, and the dimensional accuracy is in line with the demand. The functional parts manufactured by SLM are applied to the sealed hatch door, and its deformation displacement is 6.9 μm which is simulated and analyzed under the condition of 30 kPa degree vacuum and 10 ppm oxygen concentration. The optimization design based on SLM technology enables the optimization of functional parts to have a high degree of freedom. Therefore, it is feasible to reduce the weight of the product, improve the stress performance based on SLM technology, topology and layout optimization, structure type optimization and other structural optimization design methods

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Wang, D., Chen, X., Yang, Y., Xiao, Z., Wang, A., Zhang, M., … Song, C. (2018). Study on the Key Techniques of Designing Optimization and Manufacturing of Functional Part’s Structure Based on Selective Laser Melting Technology. Jixie Gongcheng Xuebao/Journal of Mechanical Engineering, 54(17), 165–172. https://doi.org/10.3901/JME.2018.17.165

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