Advanced Customize CNC Machining Parts Anodizing White CNC Lathe Chinese
Suppliers of Custom Part CNC Turning Parts Servise
CNC machining, short for computer numerical control machining, is a subtractive manufacturing
technique that utilizes computerized controls and specialized machine tools to sculpt and shape
materials by removing layers from a solid block.
Precise cuts are programmed based on specifictools and machinery, which execute the machining
process autonomously.
Product Details
Materials Used in CNC Machining
CNC machining is a versatile process employed across a wide range of materials, each with its
own ideal machining parameters, including speeds and feeds.
Here are some of the most common materials used:
1. Metals
Metals are the most frequently machined materials, ranging from easily workable brass to
robust nickel superalloys like Inconel. CNC machining in metal finds application in various
industries, including the production of injection molds, shafts, and gears.
2. Plastics
While injection molding is the primary method for plastic part production, CNC machining is
utilized for specific plastic components.
Common plastic materials include ABS (acrylonitrile butadiene styrene), nylon, and polycarbonate.
Plastic CNC machining is suitable for valve bodies, bushings, and prototypes to assess part
functionality before investing in costly molds.
3. Wood
CNC routers are commonly employed for wood cutting, offering a cost-effective alternative to
metal-cutting CNC machines. Wood CNC machining is often used for decorative purposes,
such as crafting furniture, window frames, and ornamental panels.
4. Foam
Polyurethane foam, both closed-cell and open-cell varieties, is frequently used in CNC machining
applications. CNC routers can shape foam blocks to create custom packaging for high-value items,
such as toolboxes designed to securely transport tools.
5. Composites
CNC machines play a crucial role in processing composite materials like aramid, fiberglass, and
carbon fiber. These abrasive materials require precise machining to add fastener holes and trim
components in industries like aerospace and marine manufacturing.
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 |
Post-processing and surface finishes for CNC machining
CNC-machined parts as they emerge from the machine often exhibit visible tool marks,
a feature that may not align with your specific part requirements.
Fortunately, there exists a multitude of post-processing techniques aimed at enhancing the
surface appearance and elevating attributes such as wear resistance, corrosion resistance,
and chemical resistance.
Methods like anodizing, bead blasting, and powder coating present viable options for refining
the final presentation of your custom parts, allowing you to achieve the desired surface
quality and performance characteristics.
Surface Finishing Options for CNC Machining | ||
Name | Applicable Materials | Can be Applied with |
Alodine | Aluminum | Media Blasting, Tumbling, Type II Anodizing* Type III Anodizing*, Type III Anodizing with PTFE* |
Anodizing | Aluminum | Media Blasting, Tumbling, Alodine* |
Black Oxide | Steel, Stainless Steel | Media Blasting, Tumbling, Passivation |
Electroless Nickel Plating | Aluminum, Steel, Stainless Steel | Media Blasting, Tumbling |
Electropolishing | Steel, Stainless Steel | — |
Hand Polishing | Acrylic | Enhanced cosmetic appearance |
Media Blasting | Aluminum, Steel, Stainless Steel, Brass, Bronze, Copper | All post processes except Electropolish and Powdercoat |
Nickel Plating | Aluminum, Steel, Stainless Steel | Media Blasting, Tumbling |
Passivation | Steel, Stainless Steel | Black Oxide, Electroless Nickel Plating, Zinc Plating, Tumbling, Media Blasting |
Powder Coating | Aluminum, Steel, Stainless Steel | — |
Tumbling | Aluminum, Steel, Stainless Steel, Brass, Bronze, Copper | All post processes except Electropolish and Powdercoat |
Vapor Polishing | CNC Polycarbonate (Clear, Black) | Enhanced cosmetic appearance, near optically clear applications |
Zinc Plating | Steel, Stainless Steel | Media Blasting, Tumbling, Passivation |
Specialist Industries
CNC machining service a variety of industries, enabling the precise manufacturing of components
for specific needs. Here are some key sectors and their respective applications:
1. Transportation: CNC turning is integral to the aerospace, automotive, mass transit, rail,
locomotive, military, and trucking industries.
It's used to create essential transportation equipment such as headnuts, gear blanks, bearing blocks,
levers, axles, and rotors.
2. Construction: The construction sector relies on CNC machining to produce robust components
capable of withstanding heavy loads.
Bolts, screws, and fasteners made from stainless steel and aluminum are common CNC-machined
parts used for assembly and fastening purposes.
3. Vehicles: CNC turning services play a crucial role in manufacturing various auto parts.
These include engine components like cylinder heads, connecting rods, and camshafts, as well as
transmission parts such as shafts and rings.
Suspension elements like sway bars, control arms, and tie rod ends, along with items like bushings
and bolts, are also produced using CNC turning.
4. Air Travel: The aviation industry heavily depends on CNC turned parts for customizing and
fabricating probes, joint connectors, fasteners, as well as engine and aircraft components.
Many aviation parts are crafted from titanium due to its exceptional performance in extreme
temperature conditions.
Company Profile
FAQ's
1. What tolerances can I achieve with CNC machining?
Our standard tolerances for CNC machining are 0.05 microns, suitable for most commercial
and industrial applications.
For projects with more stringent tolerance requirements, please consult with us to discuss your
specific needs.
2. What size of fillets are added when no specific fillet is specified by the 3D model
or drawing?
If a particular fillet radius is not specified in the 3D model or drawing, please indicate your
preference.
In the absence of specific instructions, the fillet radii will be added by the machinist based on
their judgment for ease of machining.
As a general guideline, internal vertical edge radii may exceed one-third of the depth,
while internal horizontal edges could be left sharp or have a radius ranging from 0.5mm to 1mm.
3. What industries do you typically work in? Who are your typical customers?
Our extensive experience spans a wide array of industries, making it challenging to pinpoint those
we haven't served.
Our clientele consists of heavy equipment manufacturers, general commercial enterprises,
and businesses within the industrial, transportation, medical, and consumer sectors, among
many others.
While our customer base extends across the United States, Europe, and globally, they share a
common requirement: top-notch machined parts that adhere to specifications, meet deadlines,
and remain budget-friendly.
4. What is your typical lead time? Can my parts be produced on a rush basis?
Our standard lead time, which covers quoting, manufacturing, and shipping for screw machine
products, is typically around one week.
We are proud to maintain an on-time delivery rate of over 99%. In certain situations,
where factors like tooling, gauges, and material availability align favorably, we can accommodate
rush orders and expedited production.
Feel free to inquire about the possibility of expediting your order!