Bond Strength in Cold Roll Bonding

Bay, Niels; Clemensen, C.; Juelstorp, O; Wanheim, Tarras

doi:10.1016/s0007-8506(07)61760-0

Cited by 103 publications

(67 citation statements)

References 3 publications

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“…This will further increase the surface exposure required to achieve full metallic bonding up to 0.87 or higher, depending on the applied contact pressure [24,25,29]. In general, a high contact pressure will ease the bond formation under otherwise identical surface contaminating conditions and reduce the actual Y-value needed to facilitate cold welding [26,30,31].…”

Section: Bond Formation In the Presence Of Oxide-and Lubricant Filmsmentioning

confidence: 99%

“…In general, bond formation in CPW is the result of the interplay between three main variables [12,[24][25][26][28][29][30][31]; i.e. the surface exposure, the type and extent of contamination, and the applied surface contact pressure p. The latter parameter is normally reported as a fraction of the yield strength y of the deformed billet material.…”

Section: Factors Contributing To Cold Bonding In Commercial Purity Almentioning

confidence: 99%

“…Combinations of p/ y and Y leading to full metallic bonding in commercial purity aluminium using cold pressure welding (CPW), cold roll bonding (CRB) and divergent extrusion (DIE), respectively. Data compiled from miscellaneous sources [27,30].…”

Section: Factors Contributing To Cold Bonding In Commercial Purity Almentioning

confidence: 99%

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Experimental and finite element simulations of cold pressure welding of aluminium by divergent extrusion

Lilleby

Grong

Hemmer

2009

Materials Science and Engineering: A

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Section: Bond Formation In the Presence Of Oxide-and Lubricant Filmsmentioning

confidence: 99%

Section: Factors Contributing To Cold Bonding In Commercial Purity Almentioning

confidence: 99%

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Experimental and finite element simulations of cold pressure welding of aluminium by divergent extrusion

Lilleby

Grong

Hemmer

2009

Materials Science and Engineering: A

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“…In this article, cold roll bonding (CRB) of Al/Cu clad sheets has been performed considering all reported studies. [3][4][5][6][7][8] Springback violates the product's shape precision; therefore, it should be compensated. Since studying springback, whether to avoid or compensate it, is appealing, many studies focused on springback behavior in bending processes.…”

Section: Introductionmentioning

confidence: 99%

Thickness change and springback of cold roll bonded aluminum/copper clad sheets in air bending process

Parsa

Mohammadi

Mohseni

2016

Proceedings of the Institution of Mechanical Engineers, Part B:

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In this article, an advanced analytical formulation is developed to predict thickness change of an aluminum/copper clad sheet. Springback analytical formulation is also introduced using the combination of advanced and primary bending theories in air bending process. Experiments were performed to verify analytical results and to investigate the effect of different geometrical parameters such as punch stroke, die opening, punch radius and setting condition on the springback. It was observed that die opening had the most striking effect, while setting condition had a negligible effect on springback. On the other hand, setting condition played a crucial role on thickness change in bent clad sheets. Clad sheet thickened in the Al/Cu setting condition, while in the Cu/Al setting it thinned. Finite element method simulation was also applied to verify analytical predictions of the thickness change and study stress distribution in the layers of the clad sheet. Good correlation was observed between analytical and numerical results.

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“…According to the phenomenological model presented by Bay et al [6] cold pressure welding is activated by two mechanisms which require a characteristic plastic deformation of the contacted surfaces. Technical surfaces are usually covered with a contaminant film and can also provide a relatively brittle covering layer resulting from a broad variety of surface treatments like brushing, chemical plating or others.…”

Section: Introductionmentioning

confidence: 99%

Temperature Influence on Bond Formation in Multi-material Joining by Forging

Wohletz

Groche

2014

Procedia Engineering

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Cold welding, e.g. by cold forging, is a smart manufacturing technology, enabling novel multi material designs. A combination of steel and aluminum is particularly attractive for manufacturing multi-material products but challenging to handle in a pressure welding process. Forging at elevated temperatures could provide promising benefits to overcome limitations in cold welding with regard to process design and bond formation. The transition from cold to warm forging effects the covering layer and the bulk properties. The paper at hand focusses on the effect of temperature increase on bond strength and bond formation on the microscopic scale.

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Bond Strength in Cold Roll Bonding

Cited by 103 publications

References 3 publications

Experimental and finite element simulations of cold pressure welding of aluminium by divergent extrusion

Experimental and finite element simulations of cold pressure welding of aluminium by divergent extrusion

Thickness change and springback of cold roll bonded aluminum/copper clad sheets in air bending process

Temperature Influence on Bond Formation in Multi-material Joining by Forging

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