Mechanical joining behavior of Cu–Fe dissimilar metallic foils in laser shock clinching

Zheng, Chao; Pan, Changdong; Wang, Jilai; Zhao, Guoqun; Ji, Zhong

doi:10.1007/s00170-020-05920-8

Cited by 13 publications

(4 citation statements)

References 29 publications

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“…Thus, bimetallic joints [ 12 , 13 , 14 , 15 , 16 , 17 ] are necessary, especially in a vacuum [ 18 , 19 , 20 , 21 , 22 , 23 ] and cryogenic systems [ 24 , 25 , 26 , 27 ]. Because of the unique combination of distinct properties, copper/stainless-steel bimetals are in great demand [ 28 , 29 , 30 , 31 , 32 , 33 , 34 ]. Stainless steel (SS) combines high strength, low thermal diffusivity, reasonable ductility, and eliminates ductile-to-brittle transitional behaviour.…”

Section: Introduction—joining Of Copper To Stainless Steel Bimetallic...mentioning

confidence: 99%

The Joining of Copper to Stainless Steel by Solid-State Welding Processes: A Review

et al. 2022

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Joining immiscible materials such as copper and stainless steel together is a significant concern due to distinct mechanical and metallurgical properties across the joint line, such as melting points, the coefficient of linear thermal expansion, and thermal conductivity. The joint properties of copper to stainless steel welds are in great demand for various mechanical components of the international thermonuclear experimental reactor, ultra-high vacuum system, plan wave linear-accelerator or linac structure, and heat exchanger. These dissimilar-metals joints offer excellent flexibility in design and production, leading to a robust structure for many cutting-edge applications. Hence, the present article reviews the copper to stainless steel joining mechanism under different solid-state processing conditions. The present understanding says that defect-free strong joints between the dissimilar metals are systematically possible. Apart from this understanding, the authors have identified and highlighted the gaps in the research exploration to date. Moreover, a sustainable methodology to achieve a desirable weld of copper to stainless steel depends on favorable processing conditions.

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Section: Introduction—joining Of Copper To Stainless Steel Bimetallic...mentioning

confidence: 99%

The Joining of Copper to Stainless Steel by Solid-State Welding Processes: A Review

et al. 2022

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“…In brief, except for the four types of dies mentioned above, some novel techniques have been innovated and developed by many scholars, such as hole-clinching, [31][32][33] shear clinching, [34][35][36] and laser shock hole-clinching. 37,38 Meanwhile, the reshaping method is also proposed to enhance the strength of clinched joints. [39][40][41] Nevertheless, it seems that manufacturing process optimization has reached a bottleneck, and it is difficult to achieving lightweight at present.…”

Section: Introductionmentioning

confidence: 99%

“…In brief, except for the four types of dies mentioned above, some novel techniques have been innovated and developed by many scholars, such as hole‐clinching, 31–33 shear clinching, 34–36 and laser shock hole‐clinching 37,38 . Meanwhile, the reshaping method is also proposed to enhance the strength of clinched joints 39–41 .…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of Al5052‐H32/PETG hybrid clinched joints

Ouyang

Chen

Ren

et al. 2022

J of Applied Polymer Sci

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The mechanical clinching technique with an extensible die is selected to connect the metal‐polymer hybrid structure in this article. Al5052‐H32 is chosen as the metallic material. Polyethylene terephthalate glycol (PETG) was chosen as the polymer material. The connection between Al5052‐H32 and PETG is accomplished under diverse forming forces. To evaluate the joinability of hybrid joints, the dimension parameters of hybrid joints are measured by inspecting the transverse section of clinched joints. To evaluate the reliability of joints, the tensile shear test and the energy absorption calculation are accomplished. Moreover, the effect of various forming forces on the mechanical characteristics and failure mode of the hybrid structure is analyzed. The results showed that the Al5052‐H32 sheet and PETG sheet could be effectively connected. The optimal forming force is 38 kN in this experiment. Under this condition, the maximum tensile shear load and the maximum energy absorption value are 1520.16 N and 4.69 J, respectively.

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“…Wang et al (2021) further developed the investigation on linear undercut, achieved making two-layer round end rectangular joint by laser shock. Zheng et al (2020) explored the material behavior in Cu/Fe laser clinching through experiments and FEM analysis, the in uence of laser density and shock wave propagation on foil thickness variation and undercut forming was specially studied.…”

Section: Introductionmentioning

confidence: 99%

The small-size laser shock clinch-bonded hybrid joining of Al foils

Wang¹,

Lu²,

et al. 2022

Preprint

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In this paper, an original process that making small-sized clinch-bonded hybrid joints by laser shock forming is put forward and developed, two metal foils, one adhesive layer and one perforated stainless steel sheet are joined together under continuous laser shocks. Finite element models are established to simulate the forming process and the shearing behavior of the hybrid joints. The effect of the adhesive on the manufacturing process is emphatically discussed. The shearing and peeling tests of the hybrid joints are compared with that of single clinched and pure bonded joints. The failure mode of the hybrid joint under loading is analyzed along with numerical simulation taking a shearing test for instance. The experimental results show that the cured adhesive with thin thickness is beneficial to the subsequent clinching process; the application of adhesive can greatly improve the mechanical strength of the single mechanical clinched joints; the failure process of the hybrid joints is that the adhesive fails first and then the interlock. The laser shock forming has enabled the precision manufacturing of small-sized clinch-bonded hybrid joints, which can play a significant role in electronic component processing and other special working conditions.

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Mechanical joining behavior of Cu–Fe dissimilar metallic foils in laser shock clinching

Cited by 13 publications

References 29 publications

The Joining of Copper to Stainless Steel by Solid-State Welding Processes: A Review

The Joining of Copper to Stainless Steel by Solid-State Welding Processes: A Review

Experimental investigation of Al5052‐H32/PETG hybrid clinched joints

The small-size laser shock clinch-bonded hybrid joining of Al foils

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