Wire-EDM performance and surface integrity of Inconel 718 with unique microstructural features fabricated by laser powder bed fusion

Gokcekaya, Ozkan; Günen, Ali; Ceritbinmez, Ferhat et al.

International Journal of Advanced Manufacturing Technology, 2024, 130, 4513-4528

アクセス数:36件（2025-04-04 11:32 集計）

固定URL: https://hdl.handle.net/11094/94640

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論文情報

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タイトル
Wire-EDM performance and surface integrity of Inconel 718 with unique microstructural features fabricated by laser powder bed fusion
著者
ORCID
0000-0002-9258-858X 0000-0002-9258-858X
Scopus Author ID
37051975500 37051975500
NRID
1000050988160 1000050988160
著者名
Gokcekaya, Ozkan
著者名
Günen, Ali
著者名
Ceritbinmez, Ferhat
NRID
1000080867614 1000080867614
著者名
Bahador, Abdollah
NRID
1000030243182 1000030243182
ORCID
0000-0001-8052-1698 0000-0001-8052-1698
researchmap permalink
read0013987 read0013987
Scopus Author ID
7403896013 7403896013
著者名
Nakano, Takayoshi
著者名
Çetin, Melik
キーワード等
Inconel 718
LPBF
MRR
Surface roughness
WEDM
内容
The version of record of this article, first published in International Journal of Advanced Manufacturing Technology, is available online at Publisher’s website: https://doi.org/10.1007/s00170-023-12924-7.
抄録
Inconel 718 alloy is difficult to machine using conventional methods due to its physical properties. Thereby, additive manufacturing (AM) of IN718 components with near-net shapes has been extensively studied. Even though AM processes provide shape and size accuracy, there is still the need for the machining of the AM-processed components to achieve the final shape of a component. Laser powder bed fusion (LPBF) has been successfully utilized to fabricate near-net shape IN718 components; moreover, the microstructure of LPBF-IN718 was unique owing to the AM processing, resulting in differences in grain size, grain boundary characteristics, and grain orientations. Furthermore, these microstructural characteristics are expected to alter the machining performance of IN718. Therefore, this study investigated the wire electro-discharge machining (WEDM) performance of LPBF-718 samples compared to wrought IN718 while focusing on the unique microstructure characteristics of LPBF-IN718 samples (lamella, single-crystal, ploy-crystal). Three different cutting strategies (rough, semi-finish, and finish) were implemented to understand the performance of the multi-pass cutting phenomenon and its effect on the surface of IN718. For all samples, rough (single pass) cutting displayed high roughness, while finish (three passes) cutting exhibited good surface quality. Compositional analyses on the machined surface showed debris formation including Zn and Cu-containing recast material, indicating wire erosion. The surface of single-crystal LPBF-IN718 after the WEDM process was smooth owing to its large grain size and less amount of grain boundary, resulting in slow cutting speed but a good surface finish. Thus, this study, for the first time, investigated the effect of unique microstructural characteristics of LPBF-fabricated IN718 on WEDM performance and machined surface quality.
出版者
Springer Science and Business Media Deutschland GmbH
収録物名
International Journal of Advanced Manufacturing Technology
巻(号)
130
ページ
4513-4528
刊行年月
2024-02-01
言語
英語
ハンドルURL
https://hdl.handle.net/11094/94640
PISSN
02683768
eISSN
14333015
関連情報 (isIdenticalTo)
DOI (出版社版)
https://doi.org/10.1007/s00170-023-12924-7
アクセス権
open access
権利情報
This article is licensed under a Creative Commons Attribution 4.0 International License.
出版タイプ
Version of Record
カテゴリ
学術雑誌論文 Journal Article