The aluminum alloy housing of a new energy drive motor serves as the core structural component of the electric drive assembly. Integrated with water cooling jackets, intersecting oil passages, numerous blind holes, threaded holes and bearing shoulders, these housings tend to trap aluminum chips, flash burrs, cutting fluid and die-casting release agents inside cavities and crevices after die casting and CNC machining. Conventional methods such as manual air blowing, simple spraying and ultrasonic cleaning struggle to reach dead zones within intersecting holes and water jacket interlayers, resulting in inconsistent cleanliness. Tiny contaminants may lead to motor bearing wear, seal failure and water channel blockage, which directly compromise the reliability of the electric drive assembly. The Bakr CNC high-pressure cleaning solution adopts CNC high-pressure water jet technology to realize integrated precision processing including deburring, chip removal, cleaning and drying, specially tailored for the complex cavity structure of motor housings, and can be integrated into automated die-casting and machining production lines for new energy vehicles.

At the heart of the solution is Bakr’s 5-axis linkage CNC high-pressure cleaning unit. Following proven water jet process principles, the high-pressure water jet acts as a flexible cutting tool. Cleaning paths are programmed offline based on the 3D model of the motor housing. The nozzle can extend at multiple angles into water cooling cavities, intersecting holes and threaded bottom holes for targeted spraying. The pressure is adjustable in frequency to effectively flush out root burrs and embedded aluminum chips without scratching the soft aluminum alloy surface. It avoids secondary debris commonly generated by hard cutting tools during deburring. The full process integrates rough flushing, high-pressure targeted deburring, precision rinsing, multi-stage filtration and hot air drying. All procedures are completed in a single clamping, delivering one-stop processing and preventing secondary contamination caused by repeated workpiece handling.

The unit is equipped with a closed-loop water treatment system. Multi-stage precision filtration continuously separates aluminum chips and oil contaminants to maintain stable water quality, consistently meeting the particle cleanliness control standards of new energy OEMs. Featuring an enclosed chamber for noise reduction and splash prevention, the machine supports robotic loading and unloading and can be inserted into automated production lines between CNC machining and assembly. The cycle time can be flexibly adjusted according to housing specifications. It is compatible with rapid product changeover for multiple motor housings on the same platform; switching products only requires calling pre-set programs, greatly reducing fixture commissioning costs. The control system stores cleaning logs and records parameters such as pressure, duration and path to satisfy traceability requirements of the automotive industry.

Compared with traditional processes, the Bakr CNC high-pressure cleaning solution eliminates pain points of manual cleaning such as poor consistency, missed cleaning and low efficiency. It resolves blind cleaning zones in intersecting holes and water-cooling interlayers. Deburring and cleaning are finished simultaneously to save investment in separate deburring stations. With a modular design for easy maintenance, the system mainly uses water-based cleaning fluid for environmental friendliness, aligning with the green intelligent manufacturing trend of new energy factories. This solution has been mass deployed on production lines for multiple new energy drive motor housings. It reliably guarantees the cleanliness quality of electric drive housings and helps component manufacturers pass OEM cleanliness audits smoothly, making it a preferred precision deburring and cleaning solution for new energy aluminum die-cast housings.