吸収体に黒色液体インクを用いた金属溶融フリーのレーザピーニングの原理実証

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2015/10/01

タイトル(英語): Preliminary Study on Laser Peening without Surface Melting using a Black Liquid Ink as an Absorber

著者名: 飯田　裕之（大阪産業大学工学部），丹羽　勝之（大阪産業大学工学部），王　明炎（大阪産業大学工学部），古河　裕之（レーザー技術総合研究所），津山　美穂（近畿大学理工学部），中野　人志（近畿大学理工学部），草場　光博（大阪産業大学工学部），部谷　学（大阪産業大学工学部）

著者名(英語): Hiroyuki Iida (Faculty of Engineering, Osaka Sangyo University), Katsuyuki Niwa (Faculty of Engineering, Osaka Sangyo University), Mingyan Wang (Faculty of Engineering, Osaka Sangyo University), Hiroyuki Furukawa (Institute for Laser Technology), Miho Tsuyama (Faculty of Science and Engineering, Kinki University), Hitoshi Nakano (Faculty of Science and Engineering, Kinki University), Mitsuhiro Kusaba (Faculty of Engineering, Osaka Sangyo University), Manabu Heya (Faculty of Engineering, Osaka Sangyo University)

キーワード: 吸収体，黒色液体インク，表面溶融フリー，引張残留応力，インクLP，表面変形　　absorber，black liquid ink，no surface melting，tensile residual stress，Ink-LP，surface deformation

要約(英語): In a conventional laser peening (C-LP) without a protective coating, a treated metallic surface is always melted after the C-LP processing, resulting in the generation of tensile residual stress. In order to establish a new LP technique without surface melting, we have investigated the effect of an LP (Ink-LP) using a black liquid ink (an indian ink) as an absorber. The laser wavelength and pulse duration of the laser used were 532 nm and ∼5 ns, respectively. We changed the pulse energy and spot diameter of the laser beam, resulting in the corresponding power density of ∼1 - 15 GW/cm2. The pulse number was 1. The metal sample used was an aluminum alloy (A2017). As a reference, we have conducted similar experiments for the C-LP processing, which in the metallic surface are directly irradiated, and have compared surface deformation and surface melting between the Ink-LP and C-LP processing. As a result, it was found that the Ink-LP processing can provide us with a promising LP effect with a wider treatment area and no surface melting in comparison with those of the C-LP processing. Thus, we have showed the usefulness of the Ink-LP processing using a black ink.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.135 No.10 （2015） 特集：光エネルギー応用技術の最新動向

本誌掲載ページ: 581-586 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/135/10/135_581/_article/-char/ja/