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CNC machining excels in producing customized components, especially those with intricate
geometries and high precision requirements. While it demonstrates excellent performance in
single tasks and low-to-medium volume manufacturing (up to 1,000 parts) with its commendable
repeatability, it does come with more design limitations when compared to 3D printing, thanks in
part to its subtractive manufacturing principles.
Product Details
CNC machining materials are generally grouped into three primary categories:
plastics, soft metals, and hard metals. This classification includes materials such as aluminum,
bronze, copper, ceramics, plywood, steel, stone, wood, zinc, and various others.
Preference is often given to materials that are considered easy to work with and possess
advantageous properties compared to alternative options.
Common Materials for CNC Machining | |
Material | Properties |
Aluminum | 2024: Good fatigue resistance and strength; excellent toughness at moderate to high strength levels; improved fracture toughness |
6061: Excellent machinability, low cost, and versatility | |
7075: High strength, hardness, low weight, and heat tolerance | |
Brass | Versatile and highly attractive copper/zinc alloy with warm yellow color accommodates severe forming/drawing |
Copper | High ductility and high electrical and thermal conductivity; develops attractive blue-green surface patina over time |
Stainless Steel | Excellent machinability and outstanding uniformity; good workability and weldability, high ductility and formability |
Steel Alloy | Mix of chromium, molybdenum, and manganese yields toughness, good torsional and fatigue strength |
Steel Mild Low Carbon | High machinability and weldability, high stiffness; good mechanical properties, machinability, and weldability at low cost |
Titanium | Excellent strength to weight ratio, used in aerospace, automotive, and medical industries |
ABS | Excellent impact resistance, good mechanical properties, susceptible to solvents |
Nylon | Excellent mechanical properties, high toughness, poor moisture resistance |
POM | High stiffness, excellent thermal & electrical properties, relatively brittle |
CNC Milling Tolerances | ||
Limits for nominal size | Plastics | Metals |
0.5mm* to 3mm | ±0.1mm | ±0.05mm |
Over 3mm to 6mm | ±0.1mm | ±0.05mm |
Over 6mm to 30mm | ±0.2mm | ±0.10mm |
Over 30mm to 120mm | ±0.3mm | ±0.15mm |
Over 120mm to 400mm | ±0.5mm | ±0.20mm |
Over 400mm to 1000mm | ±0.8mm | ±0.30mm |
Over 1000mm to 2000mm | ±1.2mm | ±0.50mm |
Over 2000mm to 4000mm | ±2.0mm | |
*Please clearly indicate tolerances for nominal sizes below 0.5mm on your technical drawing. |
CNC Machining Applications
CNC milling machines stand out as a pinnacle of precision in manufacturing, allowing for the
creation of intricate designs with exceptional accuracy. Here's an extensive overview of the diverse
parts that can be produced using CNC milling machines:
1. Aerospace Components: Crafting landing gear components and
fuselage structures with utmost
precision, meeting the rigorous standards of the aerospace industry.
2. Automotive Components: Production of control panels, axles, and
car molds, contributing to the
efficiency and innovation in the automotive sector.
3. Consumer Electronics: Manufacturing components like enclosures
for consumer electronic
devices, maintaining a delicate balance between functionality and aesthetic appeal.
4. Medical Components: Precision machining of surgical instruments
and orthotics, adhering to the
high standards of quality and accuracy in the medical field.
5. Oil and Gas Machine Parts: Crafting essential components such as
valves, rods, and pins for the
oil and gas industry, ensuring resilience in challenging operational environments.
6. Prototyping and Modeling: Swift prototyping and modeling for
product development, facilitating
efficient testing and iteration of designs.
7. Sculptures: Transforming digital artistic designs into tangible
sculptures, showcasing the artistic
possibilities of CNC milling.
8. Furniture: Precision crafting of components for furniture,
ensuring consistency and quality in the
production of intricate designs.
9. Woodworking: Facilitating precision woodworking for the creation
of detailed and finely finished
wooden components.
From critical components in aerospace to artistic endeavors like
sculptures, CNC milling machines
play a crucial role in diverse industries, offering unparalleled accuracy and versatility.
Company Profile
FAQ's
1. How long does delivery time and quotation take?
The lead time for parts is contingent on their complexity. Parts with low complexity typically
boast a lead time of 2-3 days, while moderate complexity extends the lead time to 2-5 days.
High-complexity parts may require a lead time ranging from 5 to 15 days. Quoting time is
influenced by design complexity, with a range of 1 business day (or faster) for simpler designs
to 3+ business days for more intricate ones.
If you have a design awaiting assessment and quoting, feel free to get in touch with our team.
2. Can you ensure my designed component dimensions and tolerances are suitable
for production?
Count on our team of experienced professionals to provide robust "Design for Engineering" (DFM)
support, ensuring that your designed component dimensions and tolerances are suitable for
production.
We understand the need for quick turnarounds during the idea testing phase and are committed
to providing prompt quotes. For a detailed overview of the entire order progression, refer to our
production process page.
3. How quickly can I get my parts?
For quality parts, a turnaround time of as little as two weeks is possible when complete 2D and
3D CAD models are provided. Parts with more complexity or special features may take longer.
To obtain precise lead times for your project, request a quote.
In terms of shipping, the majority of our shipments use air freight, ensuring delivery within a few
days from China to Europe or North America.
4. What type of surface finishes does provide?
We provide an extensive selection of finishing services to achieve the desired look and feel for
your parts. Our offerings include treatments for metal, texturing for plastic injection mold tools,
painting for both metal and plastic, and various other options. Explore our blog to learn how to
specify the surface texture you want.