چکیده مقاله
In 3D printing of polymeric parts, the annealing cycle, is a post process method that allows different polymeric materials to enhance their mechanical and thermal properties and also to eliminate their residual stresses However, Annealing has some drawbacks such as produces induced shrinkage to the treated parts In this study, a new technique named “cyclic annealing” is proposed to reduce shrinkage due to annealing treatment By subsequent increasing and reduction of the temperature over and bellow the glass transition temperature instead of sudden increasing the temperature to the target annealing temperature, a significant reduction of shrinkage observed for the printed PLA parts Various cylindrical shape samples with different infill densities %30, %50, %70 and %100 were examined in 70°C, 90°C and 110°C annealing temperatures Considerable reduction of shrinkage up to %50 and improvement of the material strength were observed which confirms the applicability of the proposed cyclic annealing method as an alternative of traditional polymer annealing for 3D printed materials
کلیدواژهها
نویسندگان
ایمان ظهورکاری
Assistant Prof , Department of Mechanical Engineering, Birjand University of Technology, Birjand, Iran
شیوه ارجاع
Zohourkari, Iman,1400,A feasible study on the Application of Cyclic Annealing Treatment for 3D Printed PLA Parts,18th National Conference and 7th International Conference on Manufacturing Engineering in Iran
ارائهشده در
مجموعه مقالات هجدهمین همایش ملی و هفتمین کنفرانس بین المللی مهندسی ساخت و تولید ایران11 اسفند 1400 · تهران