Numerical Analysis of Heat Transfer and Temperature Distribution in Direct Metal Laser Sintering Method

الموضوعات :

Farshid Rajabi ¹ ( Department of Mechanical Engineering, Faculty of Industrial and Mechanical Engineering, Qazvin Branch, Islamic Azad University, Qazvin, Iran )
Arman Maroufi ² ( Department of Mechanical Engineering, Faculty of Industrial and Mechanical Engineering, Qazvin Branch, Islamic Azad University, Qazvin, Iran )
Cyrus Aghanajafi ³ ( Department of Mechanical Engineering K.N.Toosi University of Technology, Tehran, Iran )
Mohammad Mehdi Kasaei ⁴ ( Department of Mechanical Engineering, Faculty of Industrial and Mechanical Engineering, Qazvin Branch, Islamic Azad University, Qazvin, Iran )

تاريخ الإرسال : 04 الأحد , جمادى الثانية, 1442 تاريخ التأكيد : 19 الإثنين , شوال, 1442 تاريخ الإصدار : 26 الأربعاء , ربيع الثاني, 1443

الکلمات المفتاحية: Selective Laser Sintering, Laser, heat, 3D Printing of Metals, DMLS,

ملخص المقالة :

In this research, the thermal analysis of additive fabrication by DMLS method has been investigated. In the DMLS method, the metal powder is melted by a laser heat source and finally a solid three-dimensional piece is formed. This analysis was performed by finite element method in Abaqus software. Laser heat distribution is considered Gaussian. The mechanical and thermal properties of the powder are considered as a function of melting temperature. Finally, the results obtained by the finite element method are compared with previous researches. The effects of laser speed and power on temperature distribution have also been investigated.

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