The base is machined from aluminum as a plate with an integral arm and post, black anodized, and grooved where the fin stack sits. Copper fins are cut and bonded into the grooves with thermal epoxy, cured under load, and the contact face is fly-cut afterwards. Fixing holes and the post are finish-machined to the drawing.
Conductivity where it counts, weight where it does not.
Mounting holes and support post in one part.
Finish and emissivity on the structural side.
Built for the airflow the chassis gives.
Contact flatness held to the drawing.
| Base Material | Black anodized aluminum base with bonded copper fins |
|---|---|
| Base | Aluminum 6063, black anodized, integral bracket |
| Fin Material | Copper C1100 |
| Fin Thickness | 0.8-2.0 mm |
| Fixing | Bracket holes and support post per drawing |
| Base CNC Tolerance | Milling / drilling / tapping down to +/-0.005 mm |
| Dimensional Inspection | Hexagon CMM +/-0.001 mm; 2.5D optical projector |
| Quality System | ISO 9001:2015; IATF 16949:2016 |
| Capacity | 60,000+ thermal parts per year |
| Lead Time | Samples typically 7-15 days; production scheduled to volume |
Note: values above are KingKa build options and verified capability; final geometry, holes and finish are confirmed against your drawing.
Two materials in one part means two expansions: the anodized aluminum bracket and the copper stack move differently, so the bond is specified with a compliant epoxy and the cure is controlled to keep the line thin.
Design & CFD. 3D layout with CFD review sizes the fin field, pipe route and base thickness to the load and airflow.
Base machining. Plate, pockets and pipe channels are milled on 50+ CNC centers to +/-0.005 mm.
Fin and pipe joining. Fins skived, stacked or extruded; pipes pressed and soldered; the stack joined to the base by the process the design calls for.
Face fly-cutting. Contact face machined flat after joining so the part sits true on the device.
Final inspection. Hexagon CMM (+/-0.001 mm) and 2.5D projector check critical features; 4-stage IQC / IPQC / FQC.
Fin pitch and height - measured against the drawing before packing.
Base flatness - fly-cut face checked on the contact side.
CMM report - critical dimensions to +/-0.001 mm.
Joint inspection - solder or weld fillet checked along the stack feet.
Visual and batch audit - IQC / IPQC / FQC on every run.
Bonded copper fins on an aluminum bracket suit equipment that has to hold itself in place:
Optical modules and laser housings
Instrument chassis
Compact power units
Telecom line cards
Medical device enclosures
Send the chassis envelope, the fixing points, the device location and the airflow path. KingKa machines the bracket and the post in the same setup as the face, then bonds the copper stack to the pitch the airflow allows.
KingKa is a direct manufacturer with 16+ years in thermal production, 50+ CNC centers, in-house skiving, FSW and vacuum brazing, certified to ISO 9001:2015 and IATF 16949:2016.
Give the fixing points and the device position together - the bracket and the fin field are machined in one setup, and moving a hole after bonding means recutting the face.
One supplier for the whole assembly. Base, fins, pipes and hardware under one quality system.
CFD before tooling. Design review catches a bad layout before metal is cut.
Prototype to volume. Samples in 7-15 days, production scheduled to forecast.
