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CNC machines offer numerous advantages in the manufacturing industry.

They can operate with minimal operator intervention and have the potential to run continuously,

24/7, especially when integrated with robotic systems for loading and unloading.

CNC machines provide consistent and repeatable accuracy, ensuring minimal dimensional variations

between thousands of produced parts.

Additionally, CNC machines are capable of creating intricate and complex features that would be

challenging to achieve with manual machines.

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Cost Considerations for CNC Machining Materials

The cost of materials in CNC machining can fluctuate significantly due to the extensive array of

available options. Each material carries its unique price tag, and the inherent physical properties

of each material play a substantial role in determining machining costs.

For those seeking to manufacture metal components, Aluminum 6061 stands out as the most

cost-effective choice.

On the other hand, ABS ranks as the most budget-friendly option among materials.

As for the influence of machining complexity on costs, stainless steel serves as an illustrative example.

Its inherent hardness, surpassing that of aluminum, renders it more challenging to machine,

consequently elevating the overall machining expenses.

Here is a comprehensive overview of the most popular materials.

Specialist Industries

CNC machines exhibit the capability to precisely and repeatedly cut nearly any metal alloy and rigid

plastic, making them suitable for custom machined parts in a wide range of industries, including

aerospace, medical, robotics, electronics, and industrial applications.

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FAQ's

1. What are the 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,

andornamental 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.

2. What tolerances can be achieved?

Tolerances are not standardized across all processes and materials.

The final tolerances on your part depend on various factors, such as part size, design complexity,

the number and size of features, materials used, surface finish, and the manufacturing process employed.

Once your order is confirmed, we conduct a Design for Manufacturing review to identify areas that may

need modification for better manufacturability.

It's helpful if you can specify which areas in your design have critical tolerances that must be met and

which can be adjusted, if necessary, to optimize production time and cost.

Here are some general tolerance guidelines:

General tolerances for CNC machining in metal and plastic.
Tolerances for plastic injection molding.
Reference charts for CNC machining of metals and plastic injection molding materials.
General tolerance for metal 3D printing is +/- 0.5mm.
A shrinkage rate of +/- 0.15% can be expected for vacuum casting.
All manufacturing and technical specifications must be clearly defined in the 2D drawings to be

followed accurately.