Effect of Interface Pretreatment of Al Alloy on Bonding Strength of the Laser Joined Al/CFRTP Butt Joint
In the present research, the carbon fiber reinforced thermoplastic (CFRTP) was laser joined with the Al alloy whose joining interface was pretreated by laser micro-texturing, anodizing, and hybrid of laser micro-texturing and anodizing. The surface morphology of the pretreated Al joining interface a...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-02-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/12/2/179 |
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| author | Yiyun Ye Qi Zou Yinan Xiao Junke Jiao Beining Du Yuezhan Liu Liyuan Sheng |
| author_facet | Yiyun Ye Qi Zou Yinan Xiao Junke Jiao Beining Du Yuezhan Liu Liyuan Sheng |
| author_sort | Yiyun Ye |
| collection | DOAJ |
| description | In the present research, the carbon fiber reinforced thermoplastic (CFRTP) was laser joined with the Al alloy whose joining interface was pretreated by laser micro-texturing, anodizing, and hybrid of laser micro-texturing and anodizing. The surface morphology of the pretreated Al joining interface and bonding strength of the corresponding Al/CFRTP butt joint were investigated. The results show that the laser micro-texturing has fabricated the micro-pit or micro-furrow in the Al joining interface. With the increasing of laser scanning times, the size of the micro-pit or micro-furrow decreases, when the laser scanning distance is constant. The bonding strength of the Al/CFRTP butt joint with Al joining interface pretreated by micro-texturing fluctuates with the increasing of laser scanning distance and times, reaching the maximum value of 20 MPa at laser scanning distance of 0.1 mm and 1 time. The anodizing pretreatment has formed the Al<sub>2</sub>O<sub>3</sub> oxide layer on the Al joining interface. The Al/CFRTP butt joint with Al joining interface pretreated by anodizing obtains the maximum bonding strength of 11 MPa at anodizing time of 10 min. The hybrid pretreatment of micro-texturing and subsequent anodizing fabricates the regular grid structure with smooth micro-furrow and micro-pit, while the hybrid pretreatment of anodizing and subsequent micro-texturing fabricates the Al joining interface with explosive micro-pit and micro-furrow. The bonding strength of the Al/CFRTP butt joint with hybrid-pretreated Al joining interface is relative better than that of the Al/CFRTP butt joint with anodizing-pretreated Al joining interface but almost lower than that of the Al/CFRTP butt joint with micro-texturing pretreated Al joining interface. Such results should be attributed to the surface morphology of the Al joining interface. |
| first_indexed | 2024-03-09T00:57:26Z |
| format | Article |
| id | doaj.art-38a44d9b5fe7490a8f91f6ff1f78bbcb |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-09T00:57:26Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-38a44d9b5fe7490a8f91f6ff1f78bbcb2023-12-11T16:47:44ZengMDPI AGMicromachines2072-666X2021-02-0112217910.3390/mi12020179Effect of Interface Pretreatment of Al Alloy on Bonding Strength of the Laser Joined Al/CFRTP Butt JointYiyun Ye0Qi Zou1Yinan Xiao2Junke Jiao3Beining Du4Yuezhan Liu5Liyuan Sheng6School of Mechanical Engineering, Yangzhou University, Yangzhou 225127, ChinaLaboratory of Aero Engine Extreme Manufacturing Technology of Zhejiang Province, Ningbo 315201, ChinaPKU-HKUST ShenZhen-HongKong Institution, Shenzhen 518057, ChinaSchool of Mechanical Engineering, Yangzhou University, Yangzhou 225127, ChinaPKU-HKUST ShenZhen-HongKong Institution, Shenzhen 518057, ChinaLaboratory of Aero Engine Extreme Manufacturing Technology of Zhejiang Province, Ningbo 315201, ChinaPKU-HKUST ShenZhen-HongKong Institution, Shenzhen 518057, ChinaIn the present research, the carbon fiber reinforced thermoplastic (CFRTP) was laser joined with the Al alloy whose joining interface was pretreated by laser micro-texturing, anodizing, and hybrid of laser micro-texturing and anodizing. The surface morphology of the pretreated Al joining interface and bonding strength of the corresponding Al/CFRTP butt joint were investigated. The results show that the laser micro-texturing has fabricated the micro-pit or micro-furrow in the Al joining interface. With the increasing of laser scanning times, the size of the micro-pit or micro-furrow decreases, when the laser scanning distance is constant. The bonding strength of the Al/CFRTP butt joint with Al joining interface pretreated by micro-texturing fluctuates with the increasing of laser scanning distance and times, reaching the maximum value of 20 MPa at laser scanning distance of 0.1 mm and 1 time. The anodizing pretreatment has formed the Al<sub>2</sub>O<sub>3</sub> oxide layer on the Al joining interface. The Al/CFRTP butt joint with Al joining interface pretreated by anodizing obtains the maximum bonding strength of 11 MPa at anodizing time of 10 min. The hybrid pretreatment of micro-texturing and subsequent anodizing fabricates the regular grid structure with smooth micro-furrow and micro-pit, while the hybrid pretreatment of anodizing and subsequent micro-texturing fabricates the Al joining interface with explosive micro-pit and micro-furrow. The bonding strength of the Al/CFRTP butt joint with hybrid-pretreated Al joining interface is relative better than that of the Al/CFRTP butt joint with anodizing-pretreated Al joining interface but almost lower than that of the Al/CFRTP butt joint with micro-texturing pretreated Al joining interface. Such results should be attributed to the surface morphology of the Al joining interface.https://www.mdpi.com/2072-666X/12/2/179laser joiningCFRTPmicro-texturingdissimilar jointanodizingbonding strength |
| spellingShingle | Yiyun Ye Qi Zou Yinan Xiao Junke Jiao Beining Du Yuezhan Liu Liyuan Sheng Effect of Interface Pretreatment of Al Alloy on Bonding Strength of the Laser Joined Al/CFRTP Butt Joint Micromachines laser joining CFRTP micro-texturing dissimilar joint anodizing bonding strength |
| title | Effect of Interface Pretreatment of Al Alloy on Bonding Strength of the Laser Joined Al/CFRTP Butt Joint |
| title_full | Effect of Interface Pretreatment of Al Alloy on Bonding Strength of the Laser Joined Al/CFRTP Butt Joint |
| title_fullStr | Effect of Interface Pretreatment of Al Alloy on Bonding Strength of the Laser Joined Al/CFRTP Butt Joint |
| title_full_unstemmed | Effect of Interface Pretreatment of Al Alloy on Bonding Strength of the Laser Joined Al/CFRTP Butt Joint |
| title_short | Effect of Interface Pretreatment of Al Alloy on Bonding Strength of the Laser Joined Al/CFRTP Butt Joint |
| title_sort | effect of interface pretreatment of al alloy on bonding strength of the laser joined al cfrtp butt joint |
| topic | laser joining CFRTP micro-texturing dissimilar joint anodizing bonding strength |
| url | https://www.mdpi.com/2072-666X/12/2/179 |
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