Vansim (Dongguan)Hardware Products Co., Ltd.
China IGBT cold plate
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Electrical liquid cooling brazed cold plate mass production
Hybrid Welding Process Cold Plates: Brazed and FSW cold plate Our new-generation aluminum cold plates break away from conventional internal channel machining and single welding processes. We have pioneered an integrated manufacturing chain combining Friction Stir Welding (FSW) and vacuum brazing. Based on extruded aluminum profiles, the two welding processes are deployed with well-divided functional roles. Without compromising sealing reliability and thermal performance, this solution delivers high efficiency, low cost and high-volume mass production capacity urgently needed for consumer electronics and energy storage industries. Full Production Workflow: Standardized Assembly Line from Aluminum Extrusion to Finished Products1. Aluminum Extrusion Forming the flow channel as the baseCustom dies extrude hollow flat tubes and profiles with complex internal tooth structures, enabling one-step channel forming. The material utilization rate exceeds 95%. 2. End Sealing via Friction Stir WeldingEnd plugs are pressed in at high rotational speed to form a solid-state joint in an instant, creating hermetic flow channels with pressure resistance above 1.0 MPa.3. Brazed joints for the cold plateCNC-machined inlet and outlet joints are coated with brazing paste and fitted into reserved holes of cold plates, followed by treatment in a continuous brazing furnace. Hundreds of parts can be processed in a single batch, significantly cutting energy and labor costs per unit. 4. Precision Post CNC MachiningMounting surfaces, positioning holes and nozzle end faces undergo precision milling to guarantee flatness within 0.05 mm, meeting the tight mounting requirements of IGBTs and power modules. 5. Leak Testing & Finished Goods Dispatch100% mass leak testing is implemented to ensure zero-defect delivery.
Cold Plate Mass Production Solutions--- A way combined with two welding ways, The brazed technology and FSW process
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