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09-04-2021 | Production Process | Issue 5/2021

Production Engineering 5/2021

Reusable unit process life cycle inventory (UPLCI) for manufacturing: laser powder bed fusion (L-PBF)

Journal:
Production Engineering > Issue 5/2021
Authors:
Erick Ramirez-Cedillo, Erika García-López, Leopoldo Ruiz-Huerta, Ciro A. Rodriguez, Hector R. Siller
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Abstract

In many industrial applications, laser powder bed fusion (L-PBF) has been recognized for its flexibility in Net Shape Manufacturing. During the process, the feedstock is deposited and selectively fused with a thermal joining via laser power. In this work, the unit process life cycle inventory methodology (UPLCI) was used to discretize energy consumption and material losses for modeling the L-PBF process. A reusable approach in terms of materials, parameters, and calculation tools is presented, to estimate the energy consumption and mass loss in practical evaluations of production lines. Calculations of energy were obtained and classified as basic, idle, and active energy. Theoretical equations were also shown to relate the most important parameters of the process with its energy consumption. Finally, a case study is presented to analyze the UPLCI capacity to improve energy consumption in the manufacturing of medical devices.

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