چکیده مقاله
3D printing is an example of rapid manufacturing technologies that is becoming increasingly popular due to its usability and the continuous reduction in the costs of printing equipment and materials This paper studies the effect of 3D printing process parameters on the mechanical properties of polylactic acid PLA In this study, the parameters of layer thickness, printing speed, and print direction were examined For this purpose, the design of experiments method was used to determine the parameters related to each sample The experimental design was carried out using Minitab software and applying the Taguchi L8 method Accordingly, 8 samples with different parameters were printed as standard tensile test specimens The samples were then subjected to a tensile test at a speed of 3 mm per minute, and their mechanical properties were extracted The optimal sample among these parameters was found to have a layer thickness of 0 2 mm, a printing speed of 4000 mm per minute, and a print direction of ±45º Subsequently, using the properties of the optimal sample and finite element software, the optimal sample was simulated, and the failure location in the experimental state was compared with the simulated state In this research, an elastic plastic model along with a soft damage criterion was used to simulate the behavior of the tensile test sample Then, the output from the finite element software for the optimal sample was compared with the failure location from the experimental test, and both failure locations showed very good agreement
کلیدواژهها
نویسندگان
Mohammad Ali Saeimi Sadigh
Associate Professor, Department of Mechanical Engineering, Azarbaijan Shahid MadaniUniversity, Tabriz,
Hadi Safi Valilu
BSc Student, Department of Mechanical Engineering, Azarbaijan Shahid Madani University,Tabriz
Alireza Mohammadi
BSc Student, Department of Mechanical Engineering, Azarbaijan Shahid Madani University,Tabriz,
Moosa Sajed
Assistant Professor, Department of Mechanical Engineering, Azarbaijan Shahid MadaniUniversity Tabriz,
شیوه ارجاع
Saeimi Sadigh, Mohammad Ali and Safi Valilu, Hadi and Mohammadi, Alireza and Sajed, Moosa,1403,The effect of 3D printing process parameters on the mechanical properties of polylactic acid,7th International Conference on Welding and Non Destructive Testing & 25th National Conference on Welding & Inspection & 14th National Conference on NDT & 3nd National Conference on Additive Manufacturing,Tehran
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مجموعه مقالات هفتمین کنفرانس بین المللی جوشکاری وغیرمخرب، بیست و پنجمین کنفرانس ملی جوش و بازرسی، چهاردهمین کنفرانس ملی آزمایش های غیرمخرب و سومین کنفرانس ملی ساخت افزایشی1 اسفند 1403 · تهران