چکیده مقاله
Selection of the proper process parameters is one of theunsolved challenges in Selective Laser Melting SLM methods Although the SLM technique has been successfullyapplied to many alloys, the parts produced using thistechnique are vulnerable to defects such as pores and lack offusion However, processes parameters can be managed toproduce a part with proper mechanical properties whilepreventing the formation of defects The purpose of thisresearch is to determine the influence of process factors suchas laser speed and power on the location and amount of theun melted zones UMZ and the evaporated zones EVZ Itis also aim to increase accuracy of simulation by consideringevaporation in the thermal analysis of SLM The thermalproperties of all five phases powder, melting, mushy zone,solidified, and vapor were thought to be temperaturedependent In a comprehensive example, different scanspeeds and laser powers were investigated The resultsrevealed that as the scan speed increased or the laser powerdecreased, the amount of UMZ decreased whereas theamount of EVZ increased It was also discovered that theUMZ was more prevalent in the early layers and the PZ wasmore prevalent in the late layers
کلیدواژهها
نویسندگان
Zahra Kazemi
PhD, Solid Mechanics Department, Mechanical Engineering School, Shiraz University, Shiraz, Iran
Hojjatollah Rokhgireh
PhD, Mechanical Engineering Department, University of Larestan, Lar, Iran
Ali Nayebi
PhD, Solid Mechanics Department, Mechanical Engineering School, Shiraz University, Shiraz, Iran
شیوه ارجاع
Kazemi, Zahra and Rokhgireh, Hojjatollah and Nayebi, Ali,1401,Selective Laser Melting Defects: Morphology of Defects Due to Lack of Fusion andEvaporation Pores,The 19th National Conference and the 8th International Conference on Construction and Production Engineering of Iran,Mashhad
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مجموعه مقالات نوزدهمین همایش ملی و هشتمین کنفرانس بین المللی مهندسی ساخت و تولید ایران18 اسفند 1401 · مشهد