Dissimilar friction stir welding of pure Ti and carbon fibre reinforced plastic

Choi, Jeong-Won; Morisada, Yoshiaki; Liu, Huihong; Ushioda, Kohsaku; Fujii, Hidetoshi; Nagatsuka, Kimiaki; Nakata, Kohei

doi:10.1080/13621718.2020.1788814

Cited by 39 publications

(21 citation statements)

References 17 publications

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“…On the other hand, excessive temperatures should be avoided as they can lead to the burning and deterioration of the composite materials, resulting in loss of mechanical strength [50,54]. Thus, it is important to control the welding temperature, since it is proved that the joint strength is reduced when the decomposition point is exceeded [20].…”

Section: Fsw Main Welding Parametersmentioning

confidence: 99%

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Joining of Fibre-Reinforced Thermoplastic Polymer Composites by Friction Stir Welding—A Review

et al. 2022

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The objective of the current work is to show the potential of the friction stir welding (FSW) and its variants to join fibre-reinforced thermoplastic polymer (FRTP) composites. To accomplish that, the FSW technique and two other important variants, the friction stir spot welding (FSSW) and the refill friction stir spot welding (RFSSW), are presented and explained in a brief but complete way. Since the joining of FRTP composites by FSSW has not yet been demonstrated, the literature review will be focused on the FSW and RFSSW techniques. In each review, the welding conditions and parameters studied by the different authors are presented and discussed, as well as the most important conclusions taken from them. About FSW, it can be concluded that the rotational speed and the welding speed have great influence on heat generation, mixture quality, and fibre fragmentation degree, while the tilt angle only has residual influence on the process. The reduction of internal and external defects can be achieved by adjusting axial force and plunge depth. Threaded or grooved conical pins achieved better results than other geometries. Stationary shoulder tools showed better performance than conventional tools. Regarding the RFSSW, it has not yet been possible to deepen conclusions about most of the welding parameters, but its feasibility is demonstrated.

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Section: Fsw Main Welding Parametersmentioning

confidence: 99%

“…Nevertheless, FSW is not a welding technique exclusive for the joining of metallic materials, as its application for the joining of polymers and polymeric matrix composites, for example, has already been demonstrated. Recently, FSW is also being studied for the joining of polymers and FRTP composites to metals [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Joining of Fibre-Reinforced Thermoplastic Polymer Composites by Friction Stir Welding—A Review

et al. 2022

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“…The surface treatment methods of titanium alloy plates can be divided into three categories: (i) mechanical treatments: sandblasting 13 and shock peening; 14 (ii) chemical treatments: anodizing 15 and etching; 16 (iii) the addition of an interfacial layer: sol–gel methods, 17 plasma-spray, 18 coupling agent, 19 and electrophoretic deposition (EPD). 20 All of these treatments can effectively increase the bonding strength between the metal and polymer, thereby enhancing the interface.…”

Section: Introductionmentioning

confidence: 99%

Effects of the Electrophoretic Deposition of CNTs on the Mechanical Properties of Ti/CFRP Composite Laminates

Liu

et al. 2021

ACS Omega

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The interfacial performance between metals and resins significantly affects the mechanical properties of fiber–metal laminates. In this study, CNTs were deposited on a titanium surface via electrophoretic deposition (EPD) to improve the interfacial performance of Ti/carbon fiber-reinforced polymer composite laminates. Before EPD, the titanium plates were treated by either sandblasting, anodizing, or sandblasting/anodizing. A macroscopically rough surface and an oxide layer were formed by sandblasting and anodizing, then CNTs were deposited, and a porous layer was obtained, which improved the wettability and bonding strength. Finally, the static mechanical properties (single-lap properties, bending properties, and interlaminar shear properties) and dynamic mechanical properties (impact resistance) of the laminates were systematically explored. The introduction of CNTs played an important role in dispersing and carrying loads and providing a strong crack propagation resistance, which improved the laminates’ static mechanical properties and reduced the delamination damage under dynamic impact. Compared with the original composite laminates, the bond strength, bending strength, and interlaminar shear strength of the laminates deposited with CNTs after sandblasting were increased by 117.94, 46.85, and 145.61%, respectively. When the impact energy was 35 J, the damage area of the composite laminate deposited with CNTs was decreased by 27.75%.

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“…With increasing demand from consumers and the environment for high fuel efficiency vehicles, as well as for the reduction of carbon dioxide emissions from vehicles, nonferrous metals, as a good substitute for traditional metal alloys, have attracted much attention [ 1 , 2 , 3 ]. Specifically, nonferrous alloys based on aluminum (Al) [ 4 ], magnesium (Mg) [ 5 , 6 ], and titanium (Ti) [ 7 ] with high specific strength, superior processability, and easy recycling have been developed and used in automobile manufacturing and aerospace fields.…”

Section: Introductionmentioning

confidence: 99%

Microstructure Evolution and Strengthening Mechanism of Galvanized Steel/Mg Alloy Joint Obtained by Ultrasonic Vibration-Assisted Welding Process

Yang

Liu

2021

Materials

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A novel ultrasonic vibration-assisted welding (UVAW) process was used to achieve reliable joining of galvanized steel and Mg alloy. The effects of the UVAW technique on the microstructure and mechanical properties of galvanized steel/Mg alloy weldment were studied in detail. The introduction of ultrasonic vibration can ameliorate the wetting of welds and eliminate porosity defects. A refined microstructure of the fusion welding zone with an average grain size of 39 ± 1.7 μm was obtained and attributed to cavitation and acoustic streaming caused by the UVAW process. The grain refinement led to an increase in the microhardness and joining strength of the galvanized steel/Mg alloy weldment. Under the ultrasonic power of 0.9 kW and a current of 65 A, the maximum joining strength of the ultrasound-treated galvanized steel/Mg alloy joint was 251 ± 4.1 MPa, which was a 14.6% increase over the joint without ultrasonic treatment.

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Dissimilar friction stir welding of pure Ti and carbon fibre reinforced plastic

Cited by 39 publications

References 17 publications

Joining of Fibre-Reinforced Thermoplastic Polymer Composites by Friction Stir Welding—A Review

Joining of Fibre-Reinforced Thermoplastic Polymer Composites by Friction Stir Welding—A Review

Effects of the Electrophoretic Deposition of CNTs on the Mechanical Properties of Ti/CFRP Composite Laminates

Microstructure Evolution and Strengthening Mechanism of Galvanized Steel/Mg Alloy Joint Obtained by Ultrasonic Vibration-Assisted Welding Process

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