Products Description
Precision machining small parts is a core link in the manufacturing industry that requires extremely high dimensional accuracy, surface quality, and form and position tolerances. It is widely used in aerospace, automotive electronics, medical equipment, precision instruments and other fields (such as micro sensor probes, chip pins, aircraft engine blade tenons, medical minimally invasive surgical instrument parts, etc.).
Company Profile
On-demand Machining service
Xi 'an Hi-Precision Machinery Co., Ltd
We have approximately 15 years of experience in CNC machining of precision small parts. We currently own 24 CNC four-axis, five-axis, and vertical machining centers, as well as drilling, tapping, and engraving machines, 12 precision CNC turning and milling machines with automatic feeding systems, and several CNC lathes.
We have a comprehensive production quality management system in place from order placement to shipment. The company has passed national environmental impact assessments and project certifications. In October 2020, we obtained the GJB 9001C-2017 (National Military Standard) and GB/T 19001-2016/ISO 9001:2015 (National Standard) quality management system certifications. Level 3 confidentiality certification is in progress.
If you need precision machining small parts service, contact us for an on-demand manufacturing quote.
How We Make It
| Precision CNC turning | Suitable for processing small shaft and disc parts (such as micro motor shafts and bearing rings) |
| Precision CNC milling | Suitable for processing complex special-shaped parts (such as micro brackets, sensor housings) |
| Precision Injection | Suitable for processing small plastic/resin parts (such as chip connectors, micro gears) |
| EDM | Suitable for processing high hardness / complex cavity parts (such as micro mold cavities) |
| Laser Engraving | Suitable for engraving LOGO, model and other text or patterns on the surface of parts. |
Process Difficulties
The core process difficulties of CNC machining small parts
The many challenges of precision machining small parts
Microscale manipulation challenges
Parts with small size (such as 0.1mm micro shaft) are easily deformed or damaged during clamping and require special micro fixtures (such as vacuum suction cups and elastic chucks).
01
Cutting force and vibration control
Small parts have poor rigidity, and even a small cutting force (such as 0.1N) during processing may cause the parts to bend. Therefore, a high-speed spindle (speed ≥ 100,000 rpm) + ultra-fine tool (diameter ≤ 0.1mm) is required.
02
Processing heat effects
Small parts have small heat capacity, and cutting heat and laser heat can easily cause local temperature to rise suddenly (such as exceeding the melting point of the material), so a cooling system (such as micro-injection and liquid nitrogen cooling) is required.
03
Difficulty in measurement and detection
Conventional measuring tools (such as calipers) cannot meet the accuracy requirements and require special testing equipment (such as three-coordinate measuring machines, laser interferometers, and atomic force microscopes).
04
How we ensure quality
1
Material pretreatment: Stabilize material properties through processes such as annealing and tempering (e.g., stress relief treatment for stainless steel to prevent deformation after processing).
Equipment calibration: Regularly calibrate machine tool spindle runout and tool accuracy (e.g., milling cutter edge roundness ≤ 0.001mm).
2
Real-time Monitoring: Infrared thermometers monitor cutting temperature, and force sensors monitor cutting force to avoid anomalies.
Process Parameter Optimization: For example, when performing micro-milling, a "low feed rate + high speed" approach is used to reduce vibration.
3
Dimensional Inspection: Coordinate measuring machines are used to check dimensions and form and position tolerances.
Surface Inspection: Confocal laser scanning microscopy is used to check surface roughness and defects.
Performance Testing: Testing includes hardness and sealing.
Get a quote
High-quality global manufacturing solutions
Different small part structures (such as shafts, holes, and complex, irregular shapes) and material properties require different processing technologies. Contact us for professional technical support and manufacturability feedback.
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