The cooling plate removed heat from a robot joint motor during sustained high-load operation.
The customer’s challenge
Uneven coolant flow created local temperature differences while the motor overheated under sustained load.
Material and fabrication route
1.0 mm 304 stainless steel.
Process route: Laser cutting → channel milling → friction-stir sealing → pressure testing → surface finishing.
Manufacturing changes
Flow-path analysis balanced distribution. The plate was sealed and the motor-contact face finish-machined to improve thermal contact.
Engineering analysis
The cold plate’s result depended on coolant distribution and physical contact with the motor. Flow-path changes addressed local temperature differences, while finish machining addressed the contact face. Pressure testing addressed a separate containment requirement. The temperature-rise and variation results therefore describe the configured motor-and-cooling arrangement and need the stated flow and interface conditions to be useful in a new comparison.
Inspection and project results
The tested motor assembly recorded temperature rise ≤30 K, temperature variation ≤2 K and no leakage.
| Project measurement or production detail | Recorded value |
|---|---|
| Motor temperature rise | ≤30 K |
| Temperature variation | ≤2 K |
| Test pressure | 1.0 MPa |
| Coolant flow | ≥2 L/min |
These figures describe the project configuration and production scope above. Dimensional, material and production details are identified separately from performance tests. For a new order, the inspection method and acceptance criteria should be agreed against the released drawings.
Planning a similar OEM component
A useful RFQ for this application should make the following interfaces and acceptance requirements clear:
- Motor contact geometry.
- Coolant flow and operating temperatures.
- Plate pressure and leak-test requirements.
- Thermal-contact and temperature-uniformity criteria.
Include the current drawing revision, mating-component information, quantities and required delivery sequence. Identifying unresolved requirements at quotation stage helps distinguish fabrication work from the equipment-level checks that the project needs.
For related manufacturing support, review our Robot Arm Cooling Plates and sheet metal quality capabilities. Use the existing quotation form below to share the drawing package for review.
