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<figure id="fig:Hot_cladding_of_pre_materials">
[[File:Hot cladding of pre-materials (schematisch).jpg|right|thumb|Figure 1: Hot cladding of pre-materials (schematischschematic)]]
</figure>
In the ''Cold Roll-Cladding'' process the bond between the contact and carrier material is achieved by cold deformation of > 50% in one rolling pass (<xr id="fig:Cold roll-cladding of semi-finished strips (schematic)"/><!-- (Fig. 3.4)-->). The high plastic deformation causes cold welding in the boundary layer between the two materials. To increase the quality and strength of the bond a subsequent diffusion annealing is performed in most cases. This process is most suitable for clad semi-finished strips with thin contact material layers (≥ 2 μm) and large strip length (> 100 m).
<figure id="fig:Cold roll-cladding of semi-finished strips (schematic)">
[[File:Cold roll-cladding of semi-finished strips (schematic).jpg|right|thumb|Figure 2: Cold roll-cladding of semi-finished strips (schematic)]]
</figure>
<figure id="fig:Typical configurations of clad contact strips">
[[File:Typical configurations of clad contact strips.jpg|right|thumb|Figure 3: Typical configurations of clad contact strips]]
</figure>
<figure id="fig:Dimensions">
[[File:Dimensions.jpg|right|thumb|Figure 4: Dimensions]]
</figure>
When specifying the contact material layer thickness it is recommended to use the minimum required thickness.
<figure id="fig:Toplay brazing with an inductive heating inline equipment (schematic)">
[[File:Toplay brazing with an inductive heating inline equipment (schematic).jpg|right|thumb|Figure 5: Toplay brazing with an inductive heating inline equipment (schematic)]]
</figure>
<figure id="fig:Typical configurations of toplay contact profiles2">
[[File:Typical configurations of toplay contact profiles2.jpg|right|thumb|Figure 6: Typical configurations of toplay contact profiles]]
</figure>
*Contact materials <br />Ag, AgNi 0,15 (ARGODUR), AgCu, AgCuNi (ARGODUR 27), Ag/Ni (SINIDUR), Ag/SnO<sub>2</sub> and Ag/ZnO<br />
<figure id="fig:Quality criteria dimensions and tolerances">
[[File:Quality criteria dimensions and tolerances.jpg|right|thumb|Figure 7: Quality criteria dimensions and tolerances]]
</figure>
Strength properties and dimensional tolerances of toplay profiles are derived from the standards DIN EN 1652 and DIN EN 1654 for Cu alloys.
*Typical configurations of multi-layer contact profiles (<xr id="fig:Typical configurations of multi-layer contact profiles"/>)
<figure id="fig:Typical configurations of multi-layer contact profiles">
[[File:Typical configurations of multi-layer contact profiles.jpg|right|thumb|Figure 8: Typical configurations of multi-layer contact profiles]]
</figure>
*Dimensions and tolerances (<xr id="fig:Contact Profiles Dimensions and tolerances"/>)
<figure id="fig:Contact Profiles Dimensions and tolerances">
[[File:Contact Profiles Dimensions and tolerances.jpg|right|thumb|Figure 9: Contact Profiles Dimensions and tolerances]]
</figure>
The thickness of the Au top-layer, which is sputtered for example, is between 0.2 and 5 μm, depending on the requirements. Tolerance of thickness is about ± 10%.
