Dissimilar materials joining between stainless steel and carbon fiber reinforced thermoplastic by friction lap joining

Miwa, Tsuyoshi; Kitagawa, Daiki; Nagatsuka, Kimiaki; Yamaoka, Hiroto; Ito, Kazuhiro; Nakata, Kohei

doi:10.2207/qjjws.35.29

Cited by 12 publications

(4 citation statements)

References 11 publications

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“…Due to the low laser power, only small grooves with small depths were formed on the Al surface after each scan. To obtain the optimum surface structure, different parameters of the laser processing including scanning speeds (3000, 5000, and 7000 mm min À1 ), hatch distances (0.15-0.5 mm), and the frequency and the power (100 kHZ and 100 W), as well as the number of scans (1,5,10,20,40) were employed previously. [22] An optimized laser-processing parameter was as follows: power of 100 W, pulse frequency of 100 kHz, scan speed of 7000 mm min À1 , hatch distance of 0.4 mm.…”

Section: Laser-processing Pretreatmentmentioning

confidence: 99%

“…One, the FLJ joint strength is low when being joined directly. [16,18] The other but more importantly, the previous studies [17][18][19][20][21] focused on the joining of metal to CFRP with a low content of short fibers, which is relatively easily achieved. There are much fewer reports on the joining of metals to CFRPs of a high content of fibers with continuous morphology.…”

Section: Introductionmentioning

confidence: 99%

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Achieving a Strong Friction‐Lap Joint of Continuous Carbon‐Fiber‐Reinforced Plastic/Aluminum Alloy via a Surface Laser‐Processing Pretreatment

Jiang

Liu

et al. 2023

Adv Eng Mater

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It is difficult to achieve high‐strength joints of metals to carbon‐fiber‐reinforced plastics (CFRPs) with high contents of continuous fibers with the poor fluidity. Herein, a special designed laser‐processing pretreatment is conducted on the surface of 5052Al, and friction‐lap joining (FLJ) is employed to join pretreated 5052Al to the CFRP with 50%–55% fiber content. The maximal tensile shear force and strength reach 4.06 kN and 18.04 MPa, respectively, with an increment of 72% compared to the untreated sample. It is the first time to achieve the high‐strength joint of Al alloys to CFRPs with high contents of continuous fibers via FLJ. The joining area and adhesion work are quantified by theoretical calculations, and the residual stresses are visualized by finite‐element analysis. The laser‐processing pretreatment changes the plain Al alloy surface structure into the rough and porous structure, largely increasing the mechanical interlocking effect of the joint, and also changes the Al alloy surface wetting behavior and increases the adhesion work from 59.66 to 81.17 mN m−1. That largely changes the chemical reaction feature between the CFRP and Al alloy, resulting in their tight bonding. In addition, the residual stresses weaken, which further improve the tight bonding effect.

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Section: Laser-processing Pretreatmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Achieving a Strong Friction‐Lap Joint of Continuous Carbon‐Fiber‐Reinforced Plastic/Aluminum Alloy via a Surface Laser‐Processing Pretreatment

Jiang

Liu

et al. 2023

Adv Eng Mater

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“…3.5 Heat-induced deformation of 3D printed models FDM printing involves a melt extrusion method that requires thermoplastics as printing materials, which have been widely applied in injection molding within the manufacturing industry due to its softening property and tendency to become flexible at high temperatures (Miwa et al, 2017). Therefore, models printed by FDM can be expected to undergo some distortion.…”

Section: Effect Of Postprocessing Procedures On Mass Reduction For St...mentioning

confidence: 99%

Examining the mass loss and thermal properties of 3D printed models produced by fused deposition modeling and stereolithography under elevated temperatures

Hsieh

Anderson

2022

RPJ

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Purpose This paper aims to study the mass loss of three-dimensional (3D) printed materials at high temperatures. A preconcentration and analysis technique, static headspace gas chromatography-mass spectrometry (SHS-GC-MS), is demonstrated for the analysis of volatile compounds liberated from fused deposition modeling (FDM) and stereolithography (SLA) 3D printed models under elevated temperatures. Design/methodology/approach A total of seven commercial 3D printing materials were tested using the SHS-GC-MS approach. The printed model mass and mass loss were examined as a function of FDM printing parameters including printcore temperature, model size and printing speed, and the use of SLA postprocessing procedures. A high temperature resin was used to demonstrate that thermal degradation products can be identified when the model is incubated under high temperatures. Findings At higher printing temperatures and larger model sizes, the initial printed model mass increased and showed more significant mass loss after thermal incubation for FDM models. For models produced by SLA, the implementation of a postprocessing procedure reduced the mass loss at elevated temperatures. All FDM models showed severe structural deformation when exposed to high temperatures, while SLA models remained structurally intact. Mass spectra and chromatographic retention times acquired from the high temperature resin facilitated identification of eight compounds (monomers, crosslinkers and several photoinitiators) liberated from the resin. Originality/value The study exploits the high sensitivity of SHS-GC-MS to identify thermal degradation products emitted from 3D printed models under elevated temperatures. The results will aid in choosing appropriate filament/resin materials and printing mechanisms for applications that require elevated temperatures.

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“…[1][2][3][4] We confirmed to be able to join between AL alloy, Mg alloy, steel, Cu, Ti and polymer. [5][6][7][8][9] FLJ process can be applied to join and metal but is hard to apply between and metal. In addition, polymers including COOH such as (PET) can be easily joined by FLJ, but polymers without COOH such as polyethylene (PE) and polypropylene (PP) are hard to join.…”

Section: Introductionmentioning

confidence: 99%

Joining Mechanism of Dissimilar Materials such as Metal and Plastic Sheets by Friction Lap Joining

Okada¹,

Nakata

Enomoto³

2016

KEM

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It is difficult to join dissimilar materials such as metallic material and polymer. We have investigated to join Aluminum alloy and high density polyethylene (PE) and ethylene acrylic acid copolymer (EAA) using Friction Lap Joining (FLJ) and then concluded EAA could be strongly joined with Aluminum alloy. PE could not be joined without anodizing. We have considered that EAA has a polar functional group, COOH. On the contrary, PE cannot be joined to an as-received aluminum alloy, because PE has no polar functional group. So, we have tried to confirm this mechanism with XPS and FTIR to investigate the interface between anodized surface and that of polymer. We find that the possibility of chemical bonding arises between O-H in COOH and O in Al2O3or O in C=O and O in Al2O3 at elevated temperature.

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Dissimilar materials joining between stainless steel and carbon fiber reinforced thermoplastic by friction lap joining

Cited by 12 publications

References 11 publications

Achieving a Strong Friction‐Lap Joint of Continuous Carbon‐Fiber‐Reinforced Plastic/Aluminum Alloy via a Surface Laser‐Processing Pretreatment

Achieving a Strong Friction‐Lap Joint of Continuous Carbon‐Fiber‐Reinforced Plastic/Aluminum Alloy via a Surface Laser‐Processing Pretreatment

Examining the mass loss and thermal properties of 3D printed models produced by fused deposition modeling and stereolithography under elevated temperatures

Joining Mechanism of Dissimilar Materials such as Metal and Plastic Sheets by Friction Lap Joining

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