The functioning of CNC machining is characterized by subtractive processes, wherein the feedstock
is machined to its final form by the removal of material. This process encompasses activities such
as drilling holes, boring lots and pathways, and shaping metal stock into new material with varying
tapers, diameters, and shapes.
Unlike additive manufacturing methods that involve the addition, layering, and deformation of
materials to achieve a specified shape, CNC machining achieves shapes through the removal of
material. This sets it apart from injection molding, where material is injected in a different state
of matter using a mold and formed to a predetermined shape.
Product Details
Common Metal Materials for CNC Machining | |
Metal 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 | |
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 |
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 |
Titanium | Excellent strength to weight ratio, used in aerospace, automotive, and medical industries |
Steel Mild Low Carbon | High machinability and weldability, high stiffness; good mechanical properties, machinability, and weldability at low cost |
Surface Finishes | ||
Name | Applicable to | Machining marks |
As machined | Metals, Plastics | Visible, light surface scratches |
Smooth machining | ||
Fine machining | Metals | Slightly visible |
Polishing | Metals | Removed on primary surfaces |
Bead blasting | Metals | Removed for non-cosmetic, removed on primary surfaces for cosmetic |
Brushing | Metals | |
Anodizing Type II | Aluminum | |
Anodizing Type III | Aluminum | Visible under anodizing |
Black oxide | Copper, Stainless steel, Alloy steel, Tool steel, Mild steel | Visible |
Powder coating | Metals | Removed |
Brushed + electropolishing | Stainless steel | Removed on Primary surfaces |
CNC Machining Applications
CNC machining finds widespread application across diverse industries, playing a crucial role in
aerospace, automotive, consumer electronics, robotics, and agriculture, especially in the fabrication
of metal components.
Moreover, it is extensively employed in the production of medical devices, household goods, and
various consumer applications. The influence of CNC machining is also evident in sectors like energy
and oil and gas, solidifying its status as one of the most prevalent and indispensable manufacturing
processes worldwide.
Company Profile
FAQ's
1. What are the minimum and maximum dimensions you can machine?
Our comprehensive CNC machining services cover milling (3-axis, 3+2-axis, and 5-axis) and
turning processes. In 3/3+2-axis CNC milling, we can achieve part dimensions up to 2000 x 1500
x 200 mm (78.7 x 59.0 x 7.8 in.). For 5-axis milling, the maximum part size is 650 x 650 x 300 mm
(25.5 x 25.5 x 11.8 in.).
CNC turning accommodates a maximum diameter of 431 mm (17 in.) and a length of 990 mm (39 in.).
Smaller parts are recommended to have dimensions around 10 x 10 x 10 mm (0.39 x 0.39 x 0.39 in.),
with a minimum feature size of 0.5 mm.
It's important to be aware that our platform imposes a maximum part size of 1000 mm (39 in.), and
for larger requirements, we encourage you to contact our sales team for tailored support.
2. How does compare to other suppliers on price?
Making direct comparisons may be complex, but as a rule of thumb, We's prices are usually 25-45%
more economical for plastic injection mold tools and CNC machined/turned parts in comparison to
suppliers in North America and Europe.
3. How quickly can I get my parts?
With complete 2D and 3D CAD models, we can manufacture quality parts in just two weeks. However,
for more complex parts with special features, additional time may be required. Request a quote for
accurate lead times tailored to your project.
Shipping is primarily done via air freight, taking only a few days from China to Europe or North America.
4. How much import duty will I need to pay for my goods?
The import duty for your goods is not universally fixed, and its calculation depends on several factors.
In Australia, new CHAFTA regulations facilitate a phased introduction of duty-free imports.
Import duties vary widely and are contingent upon the nature of the imported goods.
Internationally, the majority of countries follow the Harmonized System (HS) codes, classifying a
broad spectrum of commercial trade goods.