A physical investigation of dimensional and mechanical characteristics of 3D printed nut and bolt for industrial applications

Article Engineering, Manufacturing

FEM analysis of thermal and residual stress profile in selective laser melting of 316L stainless steel

Saad Waqar et al.

Summary: High temperature gradients and residual stresses are major challenges in selective laser melting. Understanding the influence of process parameters on thermal and residual stress profiles is crucial. A study using a 3D FEM model found that increasing laser power or decreasing scanning speed raises maximum melt pool temperature and increasing laser power or speed raises cooling rates and residual stresses. Increasing hatch spacing leads to increased max melt pool temp and decreased residual stress.

JOURNAL OF MANUFACTURING PROCESSES (2021)

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Article Multidisciplinary Sciences

Mechanical Property and Prediction Model for FDM-3D Printed Polylactic Acid (PLA)

M. Samykano

Summary: FDM 3D printing technology is widely used due to its ability to create complex geometry parts, but the lack of printing parameter information and prediction models has been a barrier. This study evaluated the tensile properties of 27 specimens with different parameter combinations and identified the ideal printing parameters for optimal tensile behavior. Statistical analysis validated the experimental data and a mathematical model was proposed for predicting tensile properties.

ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING (2021)

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Article Materials Science, Multidisciplinary