000			03450nam a22001577a 4500
082			_a670
100			_aAbsar, Muhammad _9130724
245			_a3D Printing of Nickel Based Super Alloy for Aero-Engine Applications / _cMuhammad Absar
264			_aIslamabad : _bSMME- NUST; _c2025.
300			_a118p. _bSoft Copy _c30cm
500			_aFrom the past few years, Additive Manufacturing (AM) or 3D printing has achieved a significant role among the latest emerging technologies of the fourth industrial revolution. 3D printing strategy allows us to build components of various materials without any geometrical constraint. This feature is unique in the field of industrial production, and it has transformed the traditional manufacturing concept of mechanical design permitting lightweight components and improving stiffness. Moreover, another advantage of additive manufacturing is decreased production waste and energy consumption. The Nickel based Super Alloy powder has its wide applicability in the defense industry and mainly Aero-Engine components. This can also be used for biomedical, power generation and automotive applications. Nickel and its alloys are useful due to their properties at elevated temperatures. The aim of this research was to develop the build parameters of Nickel based powder and successfully print functional parts using Selective Laser Melting (SLM) process. The properties desired for the functional part have been verified through mechanical testing. The print worthiness of this powder along with desired results achieved through this research has led to qualified printing of metal parts for high temperature applications. In the presented thesis, the objective was to conduct a series of experiments to develop parameters for printing Nickel based superalloy K465 powder for aero-engine applications. The properties that were evaluated against the printing parameters include Actual Density measurement, Microstructure and Tensile values. The best samples were optically viewed to look for microstructure. Alongside metallography, UTS samples were printed to carry xv out mechanical testing of the best samples. The experiment yielding finest results was chosen for functional part printing. Though additive manufacturing of nickel-based superalloys presents significant technological advancement, their unique material behavior and properties also present several common challenges like fusion of layers, microstructure control, residual stress and cracking during 3D printing that require careful consideration and process optimization. The K465 superalloy powder is also prone to cracking which was faced during this research. Though higher preheat temperatures were provided to mitigate this issue, cracking couldn’t be avoided due to available SLM limitation. To avoid this challenge, the further optimization of developed K465 parameters can be carried out through EBM process and even through more R&D and advanced strategies at SLM machine discussed in this thesis. These studies will be crucial for optimizing K465 additive manufacturing processes and ensuring the production of crackfree, high-integrity components for the most demanding applications.
650			_aMS Design and Manufacturing Engineering _9119567
700			_aSupervisor : Dr. Muhammad Rizwan ul Haq _9126485
856			_uhttp://10.250.8.41:8080/xmlui/handle/123456789/55031
942			_2ddc _cTHE
999			_c614898 _d614898