Influence of Wobble-Based Scanning Strategy on Surface Morphology of Laser Powder Bed-Fabricated Permalloy

Ta Yu Huang; Chung Wei Cheng; An Chen Lee; Tsung Wei Chang; Mi Ching Tsai

doi:10.3390/ma16052062

Influence of Wobble-Based Scanning Strategy on Surface Morphology of Laser Powder Bed-Fabricated Permalloy

Ta Yu Huang, Chung Wei Cheng, An Chen Lee, Tsung Wei Chang, Mi Ching Tsai

Research output: Contribution to journal › Article › peer-review

Abstract

Surface roughness quality is still a significant problem in the laser powder bed fusion (LPBF) process. This study proposes a wobble-based scanning strategy to improve the insufficiencies of the traditional scanning strategy with regard to surface roughness. A laboratory LPBF system with a self-developed controller was used to fabricate Permalloy (Fe-79Ni-4Mo) with two scanning methods: traditional line scanning (LS) and the proposed wobble-based scanning (WBS). This study investigates the influences of these two scanning strategies on porosity and surface roughness. The results imply that WBS can maintain higher surface accuracy than LS, and the surface roughness can be reduced by about 45%. Furthermore, WBS can produce periodic surface structures arranged in fish scales or parallelograms with appropriate parameters.

Original language	English
Article number	2062
Journal	Materials
Volume	16
Issue number	5
DOIs	https://doi.org/10.3390/ma16052062
Publication status	Published - 2023 Mar

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics

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10.3390/ma16052062

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title = "Influence of Wobble-Based Scanning Strategy on Surface Morphology of Laser Powder Bed-Fabricated Permalloy",

abstract = "Surface roughness quality is still a significant problem in the laser powder bed fusion (LPBF) process. This study proposes a wobble-based scanning strategy to improve the insufficiencies of the traditional scanning strategy with regard to surface roughness. A laboratory LPBF system with a self-developed controller was used to fabricate Permalloy (Fe-79Ni-4Mo) with two scanning methods: traditional line scanning (LS) and the proposed wobble-based scanning (WBS). This study investigates the influences of these two scanning strategies on porosity and surface roughness. The results imply that WBS can maintain higher surface accuracy than LS, and the surface roughness can be reduced by about 45%. Furthermore, WBS can produce periodic surface structures arranged in fish scales or parallelograms with appropriate parameters.",

author = "Huang, {Ta Yu} and Cheng, {Chung Wei} and Lee, {An Chen} and Chang, {Tsung Wei} and Tsai, {Mi Ching}",

note = "Funding Information: This work was supported by the Ministry of Science and Technology of China under Contract Nos. MOST 110-2218-E-006-028 and 111-2218-E-006-013. Publisher Copyright: {\textcopyright} 2023 by the authors.",

year = "2023",

month = mar,

doi = "10.3390/ma16052062",

language = "English",

volume = "16",

journal = "Materials",

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T1 - Influence of Wobble-Based Scanning Strategy on Surface Morphology of Laser Powder Bed-Fabricated Permalloy

AU - Huang, Ta Yu

AU - Cheng, Chung Wei

AU - Lee, An Chen

AU - Chang, Tsung Wei

AU - Tsai, Mi Ching

N1 - Funding Information: This work was supported by the Ministry of Science and Technology of China under Contract Nos. MOST 110-2218-E-006-028 and 111-2218-E-006-013. Publisher Copyright: © 2023 by the authors.

PY - 2023/3

Y1 - 2023/3

N2 - Surface roughness quality is still a significant problem in the laser powder bed fusion (LPBF) process. This study proposes a wobble-based scanning strategy to improve the insufficiencies of the traditional scanning strategy with regard to surface roughness. A laboratory LPBF system with a self-developed controller was used to fabricate Permalloy (Fe-79Ni-4Mo) with two scanning methods: traditional line scanning (LS) and the proposed wobble-based scanning (WBS). This study investigates the influences of these two scanning strategies on porosity and surface roughness. The results imply that WBS can maintain higher surface accuracy than LS, and the surface roughness can be reduced by about 45%. Furthermore, WBS can produce periodic surface structures arranged in fish scales or parallelograms with appropriate parameters.

AB - Surface roughness quality is still a significant problem in the laser powder bed fusion (LPBF) process. This study proposes a wobble-based scanning strategy to improve the insufficiencies of the traditional scanning strategy with regard to surface roughness. A laboratory LPBF system with a self-developed controller was used to fabricate Permalloy (Fe-79Ni-4Mo) with two scanning methods: traditional line scanning (LS) and the proposed wobble-based scanning (WBS). This study investigates the influences of these two scanning strategies on porosity and surface roughness. The results imply that WBS can maintain higher surface accuracy than LS, and the surface roughness can be reduced by about 45%. Furthermore, WBS can produce periodic surface structures arranged in fish scales or parallelograms with appropriate parameters.

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Influence of Wobble-Based Scanning Strategy on Surface Morphology of Laser Powder Bed-Fabricated Permalloy

Abstract

All Science Journal Classification (ASJC) codes

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