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Lathe Machine Aluminum Mass CNC Machining Milling Parts

CNC machining, short for computer numerical control machining, is a subtractive manufacturing

technique that utilizes computerized controls and machinery to selectively remove material layers

from a solid block.

Precise cuts in the material are orchestrated through programmed instructions, allowing

automated machinery to execute the machining tasks with accuracy and efficiency.

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Materials Utilized in CNC Machining

CNC machining is applied to a wide range of materials, each having its unique optimal machining

parameters (speeds and feeds) to ensure effective material removal.

The most frequently used materials include:

Metal
Metal is the most prevalent material in CNC machining. CNC machines can cut virtually any type

of metal, from easily machinable brass to challenging nickel superalloys like Inconel.

Metal machining spans various applications, including injection molds, shafts, and gears.

Plastic
Although most plastic parts are made through injection molding, CNC machining is employed for

specific plastic components.

Common materials include ABS (acrylonitrile butadiene styrene), nylon, and polycarbonate.

Plastic machining applications encompass valve bodies, bushings, and prototypes for evaluating

part functionality before investing in costly molding tools.

Wood
CNC routers are frequently used for wood cutting and are generally more cost-effective than

standard metal-cutting CNC machines.

Wood CNC machining is primarily employed for decorative purposes.

Typical applications encompass furniture, window frames, and ornamental panels.

Foam
Polyurethane foam, whether closed or open-cell, finds extensive use in CNC machining.

Foam blocks can be shaped into secure packaging for high-value products using a CNC router.

One example is the foam employed in toolboxes to securely hold tools during transport.

Composites
CNC machines are commonly employed in the processing of composite parts.

Composite materials include a wide range, from aramid to fiberglass to carbon fiber.

These materials are highly abrasive to cutting tools. In aerospace and marine industries,

composite components are machined to add fastener holes and for general trimming post-molding.

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.

Specialist Industries

CNC machining finds extensive applications across various industries.

It is prevalent in aerospace, automotive, consumer electronics, robotics, agriculture,

and numerous sectors that heavily rely on metal components.

Furthermore, CNC machining is widely employed in the medical device industry, household

products manufacturing, energy sector, oil and gas industry, and various consumer-oriented

applications.

It stands as one of the most prevalent and versatile manufacturing processes globally.

Company Profile

FAQ's

1. How much does CNC machining cost?

The cost of CNC machining is determined by several key factors, including the complexity of the

part, the quantity of parts needed, and the required lead time.

To obtain an accurate cost estimate, you can upload a 3D CAD model and receive an interactive

quote that includes valuable design for manufacturability (DFM) feedback.

Our CNC machining services do not involve any upfront non-recurring engineering (NRE) costs.

This is made possible through our proprietary software and automated fixturing processes.

As a result, even small quantities of parts, ranging from 1 to 200 units, are cost-effective when

produced using CNC machining.

While CNC machining prices may be comparable to or slightly higher than those of 3D printing,

it offers distinct advantages in terms of superior material properties and surface finishes.

2. A Brief Overview of CNC Machining Parameters

In CNC machining, many parameters are determined by the machine operator during the

generation of G-code.

Among these parameters, we will focus on the build size and accuracy of CNC machines.

CNC machines are known for their relatively large build areas, particularly when compared to

3D printers.

CNC milling systems, for instance, are capable of machining parts with dimensions of up to

2,000 x 800 x 100 mm (78” x 32” x 40”), while CNC turning systems can handle parts with

diameters of up to Ø 500 mm (Ø 20’’).

One of the notable advantages of CNC machining is its ability to produce parts with exceptional

accuracy and tight tolerances.

CNC machines can achieve tolerances that are even less than half the diameter of an average

human hair, which is approximately ± 0.025 mm or .001’’.

In cases where the tolerance is not specified in the technical drawing, the operator typically

machines the part with an accuracy level of 0.125 mm (.005’’).

3. How long does delivery time and quotation take?

Our delivery time and quotation process are influenced by the complexity of your project.

For low-complexity parts, expect a lead time of 2-3 days.

As complexity increases, the lead time can range from 2-5 days.

High-complexity parts may require a lead time of 5-15 days.

Quotation turnaround time varies based on complexity as well.

For straightforward designs, we can provide a quote within 1 business day or even faster.

However, for more intricate projects, the quoting process may take 3 or more business days.

If you have a design that needs assessment and a quote from our team, please don't hesitate

to contact us.