CNC Machining Vietnam for International OEM Parts
TDB Tech is a Vietnamese CNC manufacturer established in 2015, supplying precision machined components and mechanical assemblies to international OEM customers. With 50 CNC machines, engineering support and production capacity of more than 200,000 parts per month, we support projects from one-off prototypes to repeat production.
- 50 CNC machines for milling, turning and automated turning
- Machining tolerance down to ±0.01 mm, subject to drawing review
- More than 200,000 parts per month with IQC, IPQC and OQC
CNC Machining Capabilities for OEM Production
TDB Tech combines CNC milling, CNC turning and automated turning to manufacture custom parts from customer drawings. Our engineering team reviews geometry, material, tolerances, inspection criteria and production volume before confirming the manufacturing plan.
- Dimensional tolerances are reviewed against geometry, material and drawing requirements, with achievable tolerances down to ±0.01 mm
- machining feasibility reviewed against hole size, depth, material and inspection requirements
- documented tool-life monitoring and in-process inspection
- process controls defined for repeatable production
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Carbon steel, stainless steel, and tools steel for industrial parts.
Copper, Brass, and alloy-grade copper for hydraulics and vacuum products.
Alloy aluminum components for hydraulics and renewable energy sectors.
CNC Machining Processes and Services
Everything is CNC Machinable
CNC Milling
Utilizes multi-axis (3-4 axes) rotating cutters to machine complex geometries, including 3D profiles, slots, and precision holes.
- • Jigs, fixtures and custom machine components
• Parts up to 400 × 800 × 400 mm, subject to drawing review
CNC Turning
Processes rotationally symmetrical parts via workpiece rotation and tool feed motion, ideal for shafts, discs, and sleeves.
- • Shafts, bushings, fittings and connectors
• Rotational parts up to Ø300 mm, subject to drawing review
Precision Machining
Delivers ultra-precise (±0.01 mm when supported by geometry, material and drawing requirements) components through advanced thermal stability control and toolpath optimization.
- • Precision components with tolerances down to ±0.01 mm
• Inspection based on customer drawings and critical dimensions
Wire EDM
Electro-erodes conductive materials to machine intricate features in hardened metals (e.g., HRC 60+ tool steel).
- • Wire-cut features in conductive materials
• Tooling and component details reviewed from customer drawings
CNC Machining Case Studies
Explore selected CNC machining projects completed for hydraulic and pneumatic components, machinery parts, camera enclosures, fixtures and other industrial applications. Each project is reviewed against its drawing, material, surface treatment and inspection requirements.
Hydraulics Steel Pipe Connectors By 4 Axis CNC Machining
Craft prototype of the famous Beijing Bird's Nest by precision CNC machining
Steel Ventilated Heat Sink CNC Machining
Pinion Shim Kit by CNC Turning Service
CNC Machining Applications Across Key Industries
Hydraulics CNC Services
- Two manufacturing facilities in Hanoi with 2,500+ m² combined space
- Precision CNC milling, turning and Swiss-type machining
- IQC, IPQC and OQC quality verification
- Two manufacturing facilities in Hanoi with 2,500+ m² combined space
- Precision CNC milling, turning and Swiss-type machining
Medical CNC Services
- Two manufacturing facilities in Hanoi with 2,500+ m² combined space
- Precision CNC milling, turning and Swiss-type machining
- IQC, IPQC and OQC quality verification
- Two manufacturing facilities in Hanoi with 2,500+ m² combined space
- Precision CNC milling, turning and Swiss-type machining
Vacuum CNC Solutions
- Two manufacturing facilities in Hanoi with 2,500+ m² combined space
- Precision CNC milling, turning and Swiss-type machining
- IQC, IPQC and OQC quality verification
- Two manufacturing facilities in Hanoi with 2,500+ m² combined space
Industrial Equipment CNC
- Two manufacturing facilities in Hanoi with 2,500+ m² combined space
- Precision CNC milling, turning and Swiss-type machining
- IQC, IPQC and OQC quality verification
- Two manufacturing facilities in Hanoi with 2,500+ m² combined space
- Precision CNC milling, turning and Swiss-type machining
Why Choose TDB Tech for CNC Machining
50-Machine CNC Capacity
TDB Tech operates 50 CNC machines for milling, turning and automated turning. Achievable tolerances can reach ±0.01 mm, subject to part geometry, material and drawing requirements.
Scalable OEM Production
TDB Tech accepts projects from one piece and supports the transition from prototypes to repeat OEM production. Our capacity exceeds 200,000 parts per month, with production planning aligned to each customer’s forecast and delivery requirements.
Verified Machining Range
Our CNC milling capacity supports workpieces up to 400 × 800 × 400 mm, while CNC turning supports diameters up to Ø300 mm. Feasibility and achievable tolerances are confirmed after reviewing the drawing, material and inspection requirements.
ISO 9001:2015 Quality Control
TDB Tech is certified to ISO 9001:2015. Quality control covers incoming materials, in-process inspection and final inspection, supported by CMM, vision measuring and surface-contour measurement equipment.
International Manufacturing Experience
Established in 2015, TDB Tech has served more than 100 domestic and international customers. Our export experience includes customers in the United States, Canada, Europe, Japan and Australia.
Practical Material Capability
Our verified machining materials include aluminum, copper, brass, carbon steel, stainless steel and selected engineering plastics. Material grade, certificates and surface treatment requirements are reviewed for each project.
CNC Machining Project Workflow
Our transparent workflow ensures complete visibility throughout the manufacturing journey, whether you’re embarking on your first project or continuing a long-standing partnership.
1. CAD File Submission and Design Review
Send your 2D drawings and available 3D files together with material, tolerance, surface treatment and inspection requirements. Our engineering team reviews manufacturability before quotation.
2. Material Selection and Instant Quoting
We confirm the material grade, production quantity, secondary processes and quality documentation required for the project. Quotations are normally provided within 48 hours and remain valid for 30 days.
3. Production Monitoring & Delivery Assurance
After order confirmation, production follows the approved drawing and inspection plan. Lead time is typically 30–45 days and is confirmed for each order before production and international delivery.
CNC Machining Tolerances and Inspection
| Material Category | ​Standard Tolerance | ​High-Precision Option |
| Metals (Al 6061, SS 304) | ±0.001″ (0.025mm) | ±0.0005″ (0.0127mm) |
| Engineered Plastics | ±0.002″ (0.05mm) | ±0.001″ (0.025mm) |
| Composites (CFRP, PEEK) | ±0.003″ (0.076mm) | ±0.0015″ (0.038mm) |
Verified CNC Machining Capacity
CNC milling capacity: workpieces up to 400 × 800 × 400 mm.
CNC turning capacity: diameters up to Ø300 mm.
Machining tolerance: down to ±0.01 mm, subject to drawing, geometry and material review.
Tips: Click to learn more about CNC machining tolerance standards.
We are trusted by many clients
Materials for CNC Machining
TDB Tech machines commonly specified metals and selected engineering plastics for OEM components. Confirmed materials include aluminum, copper, brass, carbon steel and stainless steel. Final material selection is based on the customer drawing, functional requirements and required documentation.
| Applications | Cost Level | Material | Applications | Cost Level |
|---|---|---|---|---|
| Aerospace brackets | $$ | Brass C360 | Electrical connectors | $$ |
| High-stress fixtures | $$$ | Copper 110 | Heat sinks | $$$ |
| Marine hardware | $$ | Inconel 718 | Turbine disks | $$$$$ |
| Medical instruments | $$$$ | Nickel 200 | Electrolysis equipment | $$$$$ |
| Structural parts | $ | Magnesium AZ31B | Camera bodies | $$$$ |
| Cutting dies | $$$$ | Carbon Steel 1045 | Gears, shafts | $$ |
| Tooling fixtures | $$$$ | ABS | Automotive prototypes | $ |
| Medical implants | $$$$$ | Nylon (PA6/PA66) | Bearings, bushings | $$ |
| Racing components | $$$$$ | POM (Delrin) | Precision gears | $$ |
Surface Finishing for CNC Machined Parts
Cleaning, deburring and surface finishing requirements are defined for each project. Available secondary processes can include anodizing, electroplating, spraying, sandblasting and screen printing, subject to material and specification review.
Many clients require enhanced surface treatments. TDB Tech offers the following post-processing options:
Craft Perfection with a Click
CNC Machining FAQs
How do you prevent overcutting on complex geometries in my parts?
To avoid overcutting in complex parts, we implement the following proven strategies:
Tool Selection: Use short, rigid tools with large diameters to minimize vibration. Carbide tools with optimized spiral angles (30°–45° for aluminum, 15°–25° for steel) reduce cutting forces
Programming Tactics:
- Apply climb milling for stable cutting conditions.
- Add corner-clearing routines and uniform stock allowances (0.2–0.5mm).
Parameter Control: Limit stepovers to <50% tool diameter and adjust feed rates using machine SF functions
Quality Checks: Perform 100% CMM inspection on critical features.
How do you handle warping in thin-walled stainless steel parts?
Thin-walled stainless steel components (e.g., aerospace ducts, medical implants) require precision warping control. Here’s our engineered approach integrating thermal dynamics, structural optimization, and industry certifications, optimized for keywords like thin-walled stainless steel warping prevention, CNC machining distortion control, and aerospace-grade stainless fabrication.
1. Process Parameter Optimization
| Parameter | Stainless 316L | Stainless 304 | Duplex 2205 |
|---|---|---|---|
| Cutting Speed (m/min) | 60–90 | 70–100 | 50–80 |
| Feed per Tooth (mm) | 0.04–0.06 | 0.05–0.08 | 0.03–0.05 |
| Clamping Force (N) | 200–400 | 150–350 | 250–500 |
- Axial Fixturing: Custom mandrels with 0.005mm concentricity tolerance eliminate radial deformation risks.
- Multi-Stage Roughing: 3-step material removal (1mm → 0.5mm → 0.2mm) with cryogenic cooling between stages
2. Thermal Stress Mitigation
- Laser-Assisted Machining: Pre-heat localized zones to 150–200°C using 1kW fiber lasers, reducing thermal gradients by 40%
- In-Process Cooling: High-pressure coolant (70 bar) targeting tool-workpiece interface lowers cutting temps to <120°C
3. Structural Reinforcement
- Topology-Designed Jigs: Additive-manufactured titanium fixtures with lattice structures provide 360° support for parts with 0.5mm wall thickness
- Residual Stress Mapping: Use XRD (X-ray diffraction) to identify high-stress zones (>500 MPa) for targeted stress-relief annealing
4. Post-Machining Correction
- Peening Techniques: Laser peening (3–5GW/cm² pulses) induces compressive stresses up to 800MPa, counteracting warping
- Hydroforming Adjustment: Apply 200–300MPa hydraulic pressure to reshape deformed areas within ±0.1mm tolerance.
Can you ship directly to my overseas factory?
Yes, we offer direct shipping to overseas factories. Our logistics partners include DHL, FedEx, and trusted sea freight providers. Typical delivery times:
- Air Freight: 5–7 business days to the US/EU.
- Sea Freight: 20–30 days for large batches.
All shipments include customs documentation and real-time tracking.
How to reduce CNC costs without sacrificing quality?
Achieving cost efficiency in CNC machining without compromising quality demands a holistic approach integrating design intelligence, material science, and process optimization. Below are actionable strategies aligned with SEO keywords like CNC cost reduction strategies, precision CNC machining optimization, and low-cost CNC prototyping.
1. Design for Manufacturability (DFM)
- Internal Radius Optimization: Add radii ≥1/3 of cavity depth to enable larger tools (e.g., ø8mm end mills), reducing machining time by 20%
- Thin-Wall Avoidance: Maintain wall thickness >0.8mm (metal) or 1.5mm (plastic) to prevent tool deflection and scrap
- Feature Consolidation: Merge multiple components into single setups (e.g., 3-in-1 brackets) to eliminate assembly costs
2. Material Cost Engineering
| Material | Cost-Saving Alternative | Strength Retention |
|---|---|---|
| 316L Stainless Steel | 304 Stainless Steel | 85% yield strength |
| Titanium Grade 5 | Aluminum 7075 | 70% strength-to-weight |
| Brass C360 | Free-Machining Steel 12L14 | Comparable machinability |
Bulk Purchasing: Partner with suppliers for discounted rates on common alloys (e.g., aluminum 6061)
3. Process Efficiency Tactics
- Adaptive Machining: Use trochoidal toolpaths to reduce tool wear by 30% and cycle times by 25%
- Multi-Axis Optimization: 4-axis machines produce complex parts in single setups, cutting labor costs by 40%
4. Tolerance Tiering
| Feature Type | Recommended Tolerance | Cost Impact |
|---|---|---|
| Functional Surfaces | ±0.01 mm when supported by geometry, material and drawing requirements | High (CMM inspection) |
| Non-Critical Holes | ±0.1mm | Low (Standard tools) |
GD&T Implementation: Apply geometric tolerancing to avoid over-specification
5. Supply Chain Synergy
- Localized Sourcing: Reduce lead times and shipping costs by collaborating with regional material vendors
- Digital Prototyping: Use AI-driven CAM software (e.g., Fusion 360) to simulate machining and prevent errors pre-production
Can you anodize parts in custom colors?
Yes, we offer custom color anodizing services for CNC-machined parts. By adjusting the type of dyes, electrolytic solutions, and process parameters (e.g., voltage, temperature, and immersion time), we can achieve a wide range of colors, including gold, red, black, blue, green, and bronze, to meet specific design requirements
- Architectural Applications: Custom gold or bronze finishes for luxury buildings
- Industrial Components: Black or gray coatings for corrosion resistance in automotive parts
- Consumer Electronics: Vibrant colors like blue or red for aesthetic appeal
What to do if unsatisfied with surface treatment results?
If you’re unsatisfied with surface treatment results (e.g., anodizing,shot peening, or chemical film, take these steps:
Review Design Specifications: Confirm the original requirements (e.g., color codes, roughness Ra values) match the treatment process
Supplier Communication: Provide photos and CMM reports to your manufacturer for root-cause analysis
Rework Options:
- For uneven anodizing: Strip the coating chemically (e.g., NaOH solution) and re-anodize with adjusted dye batches
- For shot peening defects: Re-blast using finer media (e.g., glass beads instead of steel grit)
Quality Guarantees: Reputable suppliers often offer free rework or refunds for non-conforming finishes