Dissimilar Materials Joining of Carbon Fiber Polymer to Dual Phase 980 by Friction Bit Joining, Adhesive Bonding, and Weldbonding

Lim, Yong Chae; Park, Hoonmo; Jang, Junho; McMurray, Jake W.; Lokitz, Bradly S.; Keum, Jong K.; Wu, Zhenggang; Zhao, Feng

doi:10.3390/met8110865

Cited by 12 publications

(5 citation statements)

References 42 publications

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“…For the bare condition, the averaged failure load for uncorroded joints was 15.96 ± 0.32 kN. This is higher or comparable to the metal-to-composite joints fabricated by other technologies and summarized in the open literature [ 11 , 26 ]. As corrosion exposure time increased, the averaged peak failure load was greatly decreased, as shown in Figure 9 a.…”

Section: Resultsmentioning

confidence: 58%

“…Extensive research and development efforts have been made to advance multi-material joining techniques, including fusion welding [ 4 , 5 ], ultrasonic welding [ 6 ], friction-based joining [ 7 , 8 , 9 , 10 , 11 , 12 ], mechanical fastening [ 13 , 14 , 15 ], adhesive bonding [ 11 , 16 ] and weld bonding (use of adhesive combined with other joining techniques) [ 11 , 17 ]. However, these techniques are not fully developed to ensure a reliable joining of Mg alloy and CFRC.…”

Section: Introductionmentioning

confidence: 99%

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Mitigation of Galvanic Corrosion in Bolted Joint of AZ31B and Carbon Fiber-Reinforced Composite Using Polymer Insulation

Jun

Lim

et al. 2021

Materials

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The use of polymer insulation to mitigate galvanic corrosion was examined for bolted joints of AZ31B Mg alloy and carbon fiber-reinforced composite. To assess the corrosion behaviors of bolted joints with and without polymer insulation, solution immersion and salt spray exposure (ASTM B117) tests were conducted, and the corrosion depths and volumes were determined for the joint specimens after the tests. The polymer-insulated bolted joints exhibited much lower corrosion depths and volumes, highlighting the effective mitigation of galvanic corrosion. The reductions of joint strength in the post-corrosion joint specimens were relatively small (up to ~10%) in the polymer-insulated group but greater (up to 90%) in the group with no insulation. Cross-sectional characterization of post-corrosion joints with polymer insulation revealed local pits developed on AZ31B under galvanic influence, indicating that limited galvanic attack (that did not decrease the joining integrity significantly) could still occur during a long salt spray exposure (~1264 h) owing to the permeation of an aqueous corrosive medium.

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Section: Resultsmentioning

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Mitigation of Galvanic Corrosion in Bolted Joint of AZ31B and Carbon Fiber-Reinforced Composite Using Polymer Insulation

Jun

Lim

et al. 2021

Materials

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“…In an effort to provide both lightweight and high strength qualities, carbon fiber reinforced polymer (CFRP) has attracted great attention due to its high strength-to-weight ratio [ 4 , 5 ]. To apply CFRP in automotive vehicles, many researchers have endeavored to develop CFRP/metal dissimilar joining technology [ 6 , 7 , 8 ]. Self-piercing rivets (SPRs), a type of mechanical fastener for joining sheet materials, are considered as a high potential solution for CFRP/metal joining [ 9 , 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Green Picosecond Laser Machining of Thermoset and Thermoplastic Carbon Fiber Reinforced Polymers

et al. 2021

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There has been an increase in demand for the development of lightweight and high-strength materials for applications in the transportation industry. Carbon fiber reinforced polymer (CFRP) is known as one of the most promising materials owing to its high strength-to-weight ratio. To apply CFRP in the automotive industry, various machining technologies have been reported because it is difficult to machine. Among these technologies, picosecond laser beam-induced machining has attracted great interest because it provides negligible heat transfer and can avoid tool wear. In this work, we conducted and compared machining of 2.15 mm-thick thermoset and 1.85 mm-thick thermoplastic CFRPs by using a green picosecond laser. The optimized experimental conditions for drilling with a diameter of 7 mm led to a small taper angle (average ~ 3.5°). The tensile strength of the laser-drilled specimens was evaluated, and the average value was 570 MPa. Our study indicates that green picosecond laser processing should be considered as a promising option for the machining of CFRP with a small taper angle.

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“…In recent years, there has been a growing utilization of deformation-assisted joining processes driven by an increasing demand of assembling lightweight components. Deformation-assisted joining processes are classified into three distinct groups according to their operating principles:Based on mechanical, hydraulic, and magnetic loading, such as clinching [1,2], self-pierce riveting [3], sheet-bulk compression [4], hydraulic forming [5], and electro-magnetic forming [6];Based on solid-state welding, such as friction stir welding [7], friction spot welding [8] and explosive welding [9];Based on fusion welding combined with plastic deformation, such as resistance spot and projection welding [10] and weldbonding [11]. …”

Section: Introductionmentioning

confidence: 99%

“…Based on fusion welding combined with plastic deformation, such as resistance spot and projection welding [10] and weldbonding [11].…”

Section: Introductionmentioning

confidence: 99%

Deformation-Assisted Joining of Sheets to Tubes by Annular Sheet Squeezing

et al. 2019

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This paper is built upon the deformation-assisted joining of sheets to tubes, away from the tube ends, by means of a new process developed by the authors. The process is based on mechanical joining by means of form-fit joints that are obtained by annular squeezing (compression) of the sheet surfaces adjacent to the tubes. The concept is different from the fixing of sheets to tubes by applying direct loading on the tubes, as is currently done in existing deformation-assisted joining solutions. The process is carried out at room temperature and its development is a contribution towards ecological and sustainable manufacturing practices due to savings in material and energy consumption and to easier end-of-life disassembly and recycling when compared to alternative processes based on fastening, riveting, welding and adhesive bonding. The paper is focused on the main process parameters and special emphasis is put on sheet thickness, squeezing depth, and cross-section recess length of the punches. The presentation is supported by experimentation and finite element modelling, and results show that appropriate process parameters should ensure a compromise between the geometry of the mechanical interlocking and the pull-out strength of the new sheet–tube connections.

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Dissimilar Materials Joining of Carbon Fiber Polymer to Dual Phase 980 by Friction Bit Joining, Adhesive Bonding, and Weldbonding

Cited by 12 publications

References 42 publications

Mitigation of Galvanic Corrosion in Bolted Joint of AZ31B and Carbon Fiber-Reinforced Composite Using Polymer Insulation

Mitigation of Galvanic Corrosion in Bolted Joint of AZ31B and Carbon Fiber-Reinforced Composite Using Polymer Insulation

Green Picosecond Laser Machining of Thermoset and Thermoplastic Carbon Fiber Reinforced Polymers

Deformation-Assisted Joining of Sheets to Tubes by Annular Sheet Squeezing

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