A Finite Element Analysis of Dissimilar Materials Diffusion Bonded Joints

Deepak, P.; Latheesh, V.M.; Sumesh, A.; Unnikrishnan, D.; Santhakumari, A.

doi:10.1016/j.matpr.2018.02.229

Cited by 4 publications

(1 citation statement)

References 15 publications

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“…Due to the difference in the thermal expansion coefficients of copper and steel, cracks occur in the weld zone [9] and the weld strength of Cu/AISI 304 L austenitic stainless steel joined by friction welding method is weakened at the interface due to the presence of intermetallic layers [10,11]. The analysis of the welded joint in these materials joined by the diffusion welding method confirmed the theoretical fracture conditions [12]. Previous studies have reported that it is difficult to join copper-steel by laser welding [13]; cracks occur in the intermetallic layers of copper-steel tubes joined by electromagnetic welding [14], strength incompatibility is seen in copper-steel joined by hot isostatic pressing [15], the coarse grain region forms the weak point in the joining of Cu and AISI 304 through electron beam welding [16], and differences in the physical and chemical properties of the materials make welding processes difficult [17].…”

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confidence: 55%

The Effect of Channel Depth on Joint Quality in Cu/AISI 1040 Materials Joined by Mechanical Locking Method

2024

Teh. vjesn.

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The aim of this study is to investigate a novel and environmentally friendly method that is an alternative to conventional methods in the production of bi-metallic products. Bi-metallic products are obtained by joining materials with different physical and chemical properties. As a result, the desired properties of different materials can be used together. Numerous conventional methods such as welding, casting and pressing are used in the production of bi-metal materials. However, Cu and AISI 1040 steel materials are almost impossible to be joined by conventional production methods. The original value of this study is that these materials can be joined by a new method, the Mechanical Locking Method. In the joining process, a constant speed (1400 rpm), a constant feed rate (16 mm/min) and different channel depths (10, 13, and 15 mm) were used. The effect of the channel depth, one of the physical design parameters, on the joint quality was investigated. The mechanical and microstructural properties of the joint were determined experimentally. In conclusion, it was determined that the Cu/AISI 1040 material pair was successfully joined by using the Mechanical Locking Method and the most suitable channel depth was 10 mm.

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