چکیده مقاله
Wire and Arc Additive Manufacturing WAAM is recognized as one of the most significant techniques in metal additive manufacturing AM In this process, a filler wire is melted by an electric arc, and metal droplets are deposited layer by layer along a predetermined path Over the past decade, aluminum alloys fabricated through WAAM have gained considerable attention across industries such as aerospace, automotive, marine, and energy This growing interest is attributed to advantages including high production efficiency, the ability to manufacture large components without dimensional constraints, low weight, corrosion resistance, and favorable mechanical properties Nevertheless, despite these benefits, porosity remains a critical challenge in the WAAM of aluminum alloys The presence of pores can result in stress concentration, cracking, and reductions in tensile strength and fatigue resistance factors that directly restrict the broader industrial adoption of this technology The present study investigates the primary causes and mechanisms of porosity formation in aluminum alloys processed by WAAM Specifically, attention is given to hydrogen induced pores, gas related porosity, shrinkage cavities, and porosity arising from the evaporation of low boiling point alloying elements
کلیدواژهها
نویسندگان
Vahid Ziaei Laleh
PhD student, Sahand University of Technology, Tabriz, Iran
Habib Hamed Zargari
Assistant Professor, Sahand University of Technology, Tabriz, Iran
شیوه ارجاع
Ziaei Laleh, Vahid and Zargari, Habib Hamed,1404,A Review of the Mechanisms of Porosity Formation in Aluminum Alloy Parts Produced via Wire Arc Additive Manufacturing,8th International Conference on Welding and Non Destructive Testing & 26th National Conference on Welding & Inspection & 15th National Conference on NDT & 4th National Conference on Additive Manufacturing,Tehran
ارائهشده در
مجموعه مقالات هشتمین کنفرانس بین المللی جوشکاری و آزمایش های غیرمخرب، بیست و ششمین کنفرانس ملی جوش و بازرسی، پانزدهمین کنفرانس ملی آزمایش های غیرمخرب و چهارمین کنفرانس ملی ساخت افزایشی20 بهمن 1404 · تهران