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Virtual Part Qualification with Thermal, Mechanical, and Microstructural Modeling of Additive Manufacturing.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Virtual Part Qualification with Thermal, Mechanical, and Microstructural Modeling of Additive Manufacturing./
作者:	Irwin, Jeff.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
面頁冊數:	130 p.
附註:	Source: Dissertations Abstracts International, Volume: 83-06, Section: B.
Contained By:	Dissertations Abstracts International83-06B.
標題:	Industrial engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28929379
ISBN:	9798494497864

Virtual Part Qualification with Thermal, Mechanical, and Microstructural Modeling of Additive Manufacturing.
Irwin, Jeff.

Virtual Part Qualification with Thermal, Mechanical, and Microstructural Modeling of Additive Manufacturing. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 130 p.

Source: Dissertations Abstracts International, Volume: 83-06, Section: B.

Thesis (Ph.D.)--The Pennsylvania State University, 2021.

The objective of this work is to develop thermal, mechanical, and microstructural modeling of additive manufacturing to enable the virtual qualification of parts. Simulations provide the option of supplementing or replacing a costly trial and error design process with a quick virtual design process. Further, modeling can replace destructive testing with virtual qualification and certification to ensure that parts attain their intended microstructures and material properties. In order to replace experimental design and physical testing, simulations need to be fast and accurate. Towards that goal, new heat source models are presented to unleash simulations and allow modeling additive manufacturing an order of magnitude faster than with moving ellipsoidal heat sources. To improve accuracy, the kinetic parameters of a microstructural transformation model are optimized to match measured lath widths better than with parameters from published literature. Finally, the secant method is used to control laser power to prevent thermal-related defects and achieve consistent build quality, allowing models to be used as a design tool to suggest improvements to the build process.

ISBN: 9798494497864Subjects--Topical Terms:

526216
Industrial engineering.
Subjects--Index Terms:

Microstructural modeling

Virtual Part Qualification with Thermal, Mechanical, and Microstructural Modeling of Additive Manufacturing.
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520 $a The objective of this work is to develop thermal, mechanical, and microstructural modeling of additive manufacturing to enable the virtual qualification of parts. Simulations provide the option of supplementing or replacing a costly trial and error design process with a quick virtual design process. Further, modeling can replace destructive testing with virtual qualification and certification to ensure that parts attain their intended microstructures and material properties. In order to replace experimental design and physical testing, simulations need to be fast and accurate. Towards that goal, new heat source models are presented to unleash simulations and allow modeling additive manufacturing an order of magnitude faster than with moving ellipsoidal heat sources. To improve accuracy, the kinetic parameters of a microstructural transformation model are optimized to match measured lath widths better than with parameters from published literature. Finally, the secant method is used to control laser power to prevent thermal-related defects and achieve consistent build quality, allowing models to be used as a design tool to suggest improvements to the build process.
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653 $a Virtual design
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