In aerospace components such as fuel nozzles and hydraulic valve bodies, hundreds or even thousands of microholes are required. Each hole must meet strict geometric accuracy and ensure uniform flow distribution.
Challenges
The hole diameters are extremely small (<0.5mm). Any deviation in size or shape can cause flow inconsistency, which risks system performance and safety. With the large number of holes, cumulative errors become a major concern.
Solutions
To ensure high uniformity across the entire array, the following measures are applied:
Ultra-precision drilling: High-speed spindles and specialized tools maintain dimensional accuracy and surface quality.
In-line airflow testing: Real-time flow detection during machining ensures conformance with design specifications.
Batch correction processing: Machining parameters are fine-tuned based on test feedback to eliminate micro-deviations.
This combined approach significantly improves the consistency and reliability of microhole arrays, meeting the aerospace industry's demanding requirements.
