Deep machining Liquid Cold Plate are manufactured by creating a channel for liquid to flow by drilling a series of deep holes into an aluminium plate. These holes are drilled at different angles and locations parallel to the surface. We use external and intermediate sealing plugs within the channels to create the desired internal flow routes, with inlet and outlet connectors for both internal and external fitting to the plate.
The cold plate is manufactured from a single piece of aluminium that has not been through any thermal cycling and no thermal stress. This results in a manufacturing process that allows flatness to be achieved much easier. A significant benefit of gun-drilled cold plates is that they can maintain tighter tolerances than tubed cold plates, and have the advantage that there are no thermal boundaries.
The deep drilled liquid cold plate is most suited to applications with no excessive cooling requirements, and where ease of manufacture and cost effectiveness are important. The thermal performance is similar to that of the expanded copper tube in an aluminum plate technique.