Bond strength optimization of Ti/Cu/Ti clad composites produced by roll-bonding

Hosseini, Morteza; Manesh, H. Danesh

doi:10.1016/j.matdes.2015.05.010

Cited by 78 publications

(36 citation statements)

References 23 publications

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“…Joining titanium to copper would provide a material with light weight and high strength and meet the requirements of heat and electrical conduction, thus having broad application prospects in industries [1,2]. Joining of titanium and copper has therefore been of great significance and interest.…”

Section: Introductionmentioning

confidence: 99%

Investigation on a Novel Laser Impact Spot Welding

Liu

Gao

Zhang

et al. 2016

Metals

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Abstract:In this paper a novel laser impact spot welding (LISW) method is described, in which a hump was formed on the flyer plate on the intended welding spot location by local pre-forming. When the flyer and base plates were placed together to perform welding, the two plates kept in contact over their entire surfaces except at the hump, where a local air gap was enough to guarantee the impact velocity and collision angle to achieve spot welding using laser pulse energy. The presented approach was implemented to join thin titanium foils to copper foils under low laser energy system. Joints with regular shapes were obtained. The microstructure in the weld interface was studied with scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). It was found that the jetting occurred at the central region of the weld spots due to oblique impact. Wave features were observed in the weld interfaces. The impact energy was found to have significant influence on the wave's characteristics. Moreover, SEM images and EDS analysis did not show apparent element diffusion across the weld interface. Besides, the lap shearing test was used to characterize the mechanical properties of the spot welded joints.

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Section: Introductionmentioning

confidence: 99%

Investigation on a Novel Laser Impact Spot Welding

Liu

Gao

Zhang

et al. 2016

Metals

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“…Thus, a large amount of force was required to separate the two sheets bonded at high thickness reduction, resulting in high bond strength. Hosseini and Danesh Manesh [15] have shown that bond strength improves with increase in thickness reduction, because area of the cracks and the volume of the virgin metals to be extruded through the cracks increased leading to high bond strength. Movahedi et al [16] has shown that with increase in thickness reduction ratio and rolling pressure, surface expansion and micro-cracks formation increases result in large bonded area.…”

Section: Results and Discussion For Experimental Interface Characterimentioning

confidence: 99%

Delamination analysis in single-point incremental forming of steel/steel bi-layer sheet metal

Hassan

Hussain

Ilyas

et al. 2020

Archiv.Civ.Mech.Eng

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Layered metallic materials (LMMs) offer superior properties in comparison to their counterpart monolithic sheets. Singlepoint incremental forming (SPIF) has emerged as an economical solution to produce LMM parts. However, delamination can limit the formability of such parts. In this study, the delamination analysis during SPIF of layered sheets was performed. Steel/steel bi-layer sheets were fabricated by roll bonding. These sheets were produced at thickness reduction ratios of 47%, 58% and 70%. The bond strength and fracture toughness in mode I and mode II were determined by T-peel and tensile shear tests, respectively. When the thickness reduction ratio was increased from 47 to 70%, an increase in bond strength was observed with 572% increase in mode I and 15.6% in mode II, respectively. On the other hand, with the same percent increase in thickness reduction, the critical strain energy release showed an increase of 3992% in mode I and 20% decrease in mode II. Surface-based cohesive zone model was used to define the interface between layers during numerical simulation of SPIF for delamination analysis. To validate the numerical results, SPIF of given bi-layer sheet was performed experimentally and a good agreement between the numerical and experimental results was observed.

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“…Metallic multilayer materials, also called multilayer composites [1,2], cladding materials [3], clad composites [4,5], clad plates [6,7], bimetal composites [8,9] , composite rods [10,11] and clad wires [12], have been widely used in many industrial fields such as kitchen utensils [6,[13][14][15], automobile industry [9,14,16,17], aerospace [6,18], shipbuilding [6], biomedical devices [19] and heat exchangers [9,14,16,17]. Various combinations of materials like Al/St [6,9,20], Al/Ti [7,18,21,22], Al/Mg [11], Al/Ag [23], Al/Cu/Al [4,5], Cu/Zn/Al [1], STS/ Al/Cu [13], Cu/Ti [8], Ti/Cu/Ti [24], Ni/Cu [16] and Cu/St [12,25] have been employed to exploit excellent mechanical, physical, and chemical properties of each material in a new unit material. Copper cl...…”

Section: Introductionmentioning

confidence: 99%

An investigation on micro-hardness, micro-structure and ductility of clad layer in copper clad aluminum wire under multi stage–NCWD

Sichani

Rahnama

Raghebi

et al. 2020

Mater. Res. Express

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The copper clad aluminum (CCA) wire was fabricated by roll forming of copper foil around the aluminum wire rode. Non-continuous wire drawing (NCWD) was employed to study the effect of wire drawing parameters on ductility, micro-hardness and microstructure of the copper clad layer. The NCWD process continued without intermediate annealing until cracks were observed on the copper clad layer. The cracks appeared after a 78% reduction in the cross-section. The micro-tensile test was performed on specimens with transverse curvature to determine elongation. A modified correction factor was introduced to correct the effect of curvature size on elongation. The introduced correction factor proportional to the sample characteristics was between 0.7 and 1.4. Moreover, variations in the hardness and microstructure of the copper clad layer were investigated in the base metal and at the welding zone. Before beginning the wire drawing process for the annealed CCA wire with a diameter of 10.1mm and a Cu clad thickness of 0.48mm , the hardness, ductility, UTS and grain size of the clad layer were 87HV, 43%, 103MPa and 80 μm, respectively. At the end of NCWD for 10°a nd the 20% reduction ratio of the die, the diameter of CCA wire reached 4.7mm with a 0.22mm thickness of Cu clad. The hardness, ductility, UTS and grain size of the clad layer were 157HV, 2.9%, 325MPa and 8 μm, respectively.

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Bond strength optimization of Ti/Cu/Ti clad composites produced by roll-bonding

Cited by 78 publications

References 23 publications

Investigation on a Novel Laser Impact Spot Welding

Investigation on a Novel Laser Impact Spot Welding

Delamination analysis in single-point incremental forming of steel/steel bi-layer sheet metal

An investigation on micro-hardness, micro-structure and ductility of clad layer in copper clad aluminum wire under multi stage–NCWD

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