Determination of the Mechanical Properties of Friction Welded Tube Yoke and Tube Joint

Isik, Efe; Özes, Çiçek

doi:10.1155/2016/8918253

Cited by 6 publications

(2 citation statements)

References 22 publications

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“…The automotive industry also uses bimetallic materials for the production of drive system components. One example are axle shafts, in which the hub is fastened to the axle shaft in the process of frictional butt-welding [18,19]. Studies have also been carried out on plastic forming of two materials during which they are welded to yield a monolithic part characterized by unique physico-chemical properties [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Skew Rolling of Bimetallic Rods

et al. 2020

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The present article reports selected results of a preliminary study of the process of skew rolling of bimetallic rods. The experiments were conducted using a numerically controlled three-roller skew rolling mill. During the tests, bimetallic rods were rolled from billets whose cores and outer sleeves (bushings) were made of different types of steel. The results demonstrate that the proposed method can be successfully used in the production of bimetallic rods. However, proper fastening of the two materials depends on the geometrical parameters of the billets, and the quality of bimetallic rods depends on the heating method used. When the rods are heated without protective atmospheres, the surface layer of the core gets decarburized and the surfaces of the materials being joined together are oxidized, which hinders the welding process and adversely affects the physical and chemical properties of such products. The results of numerical modeling indicate that the material near the surface tends to flow, which may have a negative impact on the welding process. In addition, the distribution of stress in the tool–workpiece contact zone may make welding of the materials difficult. The results reported in this paper are preliminary and constitute a prelude to a more detailed analysis of bimetallic rod rolling.

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Section: Introductionmentioning

confidence: 99%

Skew Rolling of Bimetallic Rods

et al. 2020

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“…Regrettably, the increased energy and increased load have a cost and safety associated with it. In lieu, DDFW continually adds energy using an electric motor, which in turn, drives the rotating component at a speed in rpm [6,7]. If the parts are to rotate longer then more energy will be added to the weld.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the effect of silver, nickel and chromium interlayers and upset pressure in joining SS304L-AA6063 alloys through direct drive friction welding process

Murugan

Sathiya

Haq

2020

J Braz. Soc. Mech. Sci. Eng.

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Joining of dissimilar alloys is demanded industrial applications and is effectively possible with the friction welding (FW) process. In this work, SS304L alloy rods were electroplated with silver (Ag), nickel (Ni) and chromium (Cr) and joined with AA6063 at various upset pressures (UP) (18, 21, 24 MPa) through friction welding process. The interlayer produced by the electroplating process was considered as the third element between AA6063 and SS304L during the FW. The results obtained through weld microstructures, fracture images, energy-dispersive X-ray spectroscopy, tensile properties, joint efficiency, Vickers microhardness and Charpy V-notch test of the fabricated dissimilar joints are discussed here. Fracture study showed the dimple fracture. The maximum strength and axial shortening were obtained as 216 ± 8 MPa and 27 mm, respectively. Maximum joint efficiency was achieved for Cr interlayer as 105 ± 4% at 24 MPa UP, which also showed a 1.79 tensile-to-yield (TS/YS) ratio. UP of 24 MPa improved ductile nature of joint. Ag and Ni joints rendered poor elongation. FW of chromium-electroplated specimen gave maximum weld performance than that of others. Ag interlayer at 18 MPa UP showed good hardness. Maximum impact energy observed by Cr at 24 MPa UP was 35 J. The novelty of the work is to frictionally weld the dissimilar metals of ϕ12 mm rods with Ag, Ni, Cr interlayer at welding pressures in view of safety and energy consumption. There were the changes in the microstructure and mechanical properties of joints when the interlayers, UPs changed.

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