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2022-05-21
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論文情報
タイトル
Ultra High Speed Laser Cutting of CFRP Using a Scanner Head
著者
Jung, Kwang-Woon
Jung, Kwang-Woon
Kawahito, Yousuk
Kawahito, Yousuk
Katayama, Seiji
Katayama, Seiji
キーワード等
Laser cutting
CFRP
Ultra high speed
Heat affected zone
tensile strength
抄録
Laser cutting of CFRP is well known to be difficult because of the thermal damage to the CFRP material. Therefore, with the objectives of evaluating the cutting poss ibility for long- or short-fiber pellet CFRP sheets of 3 mm in thickness and obtaining narrower HAZ for better cut quality, ultra-high speed cutting was conducted by using a continuous-wave (cw) high-brightness disk laser with a scanner head. The increase in the laser power rendered the cutting time shorter and the kerf depth deeper for a CFRP full cut. It was revealed that CFRP cut with a narrow HAZ of less than 50μm could be produced under the conditions of laser powers of 2 to 5 kW, a cutting speed of 5 m/s, a time interval between repeated runs of 1 second and a defocused distance of 0 mm. It was also confirmed that short fiber pellet CFRP was more easily cut and suffered less thermal damage in comparison with a long fiber one. Furthermore, it was de monstrated that the tensile strength of fully laser-cut CFRP was almost equal to that of the base CFRP specimen. This means the laser-cut surfaces of the CFRP sheet were not degraded in mechanical properties.
公開者
大阪大学接合科学研究所
公開者の別表記
Joining and Welding Research Institute, Osaka University
公開者 (ヨミ)
オオサカ ダイガク セツゴウ カガク ケンキュウジョ
掲載誌名
Transactions of JWRI
巻
42
号
2
開始ページ
9
終了ページ
14
刊行年月
2013-12
ISSN
03874508
NCID
AA00867058
URL
http://hdl.handle.net/11094/27405
言語
英語
カテゴリ
紀要論文 Departmental Bulletin Paper
Transactions of JWRI / Vol.42 No.2 (2013-12)
論文詳細を表示
著者版フラグ
publisher
NII資源タイプ
紀要論文
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紀要論文
dcmi資源タイプ
text
DCTERMS.bibliographicCitation
Transactions of JWRI.42(2) P.9-P.14
DC.title
Ultra High Speed Laser Cutting of CFRP Using a Scanner Head
DC.creator
Jung, Kwang-Woon
Kawahito, Yousuk
Katayama, Seiji
DC.publisher
大阪大学接合科学研究所
DC.language" scheme="DCTERMS.RFC1766
英語
DCTERMS.issued" scheme="DCTERMS.W3CDTF
2013-12
DC.identifier" scheme="DCTERMS.URI
http://hdl.handle.net/11094/27405
DC.subject
Laser cutting
CFRP
Ultra high speed
Heat affected zone
tensile strength
DCTERMS.abstract
Laser cutting of CFRP is well known to be difficult because of the thermal damage to the CFRP material. Therefore, with the objectives of evaluating the cutting poss ibility for long- or short-fiber pellet CFRP sheets of 3 mm in thickness and obtaining narrower HAZ for better cut quality, ultra-high speed cutting was conducted by using a continuous-wave (cw) high-brightness disk laser with a scanner head. The increase in the laser power rendered the cutting time shorter and the kerf depth deeper for a CFRP full cut. It was revealed that CFRP cut with a narrow HAZ of less than 50μm could be produced under the conditions of laser powers of 2 to 5 kW, a cutting speed of 5 m/s, a time interval between repeated runs of 1 second and a defocused distance of 0 mm. It was also confirmed that short fiber pellet CFRP was more easily cut and suffered less thermal damage in comparison with a long fiber one. Furthermore, it was de monstrated that the tensile strength of fully laser-cut CFRP was almost equal to that of the base CFRP specimen. This means the laser-cut surfaces of the CFRP sheet were not degraded in mechanical properties.
citation_title
Ultra High Speed Laser Cutting of CFRP Using a Scanner Head
citation_author
Jung, Kwang-Woon
Kawahito, Yousuk
Katayama, Seiji
citation_publisher
大阪大学接合科学研究所
citation_language
英語
citation_date
2013-12
citation_journal_title
Transactions of JWRI
citation_volume
42
citation_issue
2
citation_firstpage
9
citation_lastpage
14
citation_issn
03874508
citation_public_url
http://hdl.handle.net/11094/27405
citation_keywords
Laser cutting
CFRP
Ultra high speed
Heat affected zone
tensile strength