CNC Components Machining Services Non-Standard Stainless Steel Parts CNC

Medical Parts Manufacturing

CNC turning is a manufacturing process that involves securing a blank on a rotating chuck and

using stationary cutting tools to remove material. This method is particularly suitable for creating

parts with symmetrical features along their central axis.

Turned components are usually manufactured more efficiently and cost-effectively compared to

milled parts.

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The primary focus of the CNC machining process revolves around metals, incorporating alloy steel,

carbon steel, cast iron, stainless steel, aluminum, copper, magnesium, and zinc.

Nevertheless, CNC machining extends its capabilities beyond metals to encompass plastic parts

and other materials, including ceramics, composites, thermoplastics, and thermosets.

CNC Machining Tolerances

Typical machining tolerances fall within the range of ± 0.005 inches or 0.13 millimeters.

Tolerances represent the allowable variation for a specific dimension.

For instance, if a CNC machining tool has a tolerance of ± 0.01 millimeters, it means that the tool

can deviate by 0.01 millimeters in each cut.

When provided with a drawing, Our CNC machining service can achieve CNC parts with tolerances

as tight as ± 0.0002 inches.

In the absence of a drawing, all CNC parts are manufactured according to our ISO 2768 medium

standard. We can also work to even tighter tolerances, such as ± 0.025 millimeters or ± 0.001

inches, when an engineering drawing specifies critical features.

Applications of CNC Turning

1. Transportation:
CNC turning services play a crucial role in various transportation sectors, including aerospace,

automotive, mass transit, rail and locomotive, military, and trucking industries.

These services are utilized in designing transportation equipment such as headnuts, gear blanks,

bearing blocks, levers, axles, and rotors.

2. Construction:
In the construction industry, CNC machines are employed to create robust components capable of

handling heavy loads. This includes the production of bolts and screws from metals like stainless

steel and aluminum, used in assembly and fastening functions.

3. Vehicles:
CNC turning services are extensively used for manufacturing auto parts, covering components for

engines (cylinder heads, connecting rods, camshafts), transmission parts (shafts, rings), and

suspension components (sway bars, control arms, tie rod ends), as well as other items like

bushings and bolts.

4. Air Travel:
The aviation industry relies on CNC turned parts for customization and creation, including probes,

joint connectors, fasteners, engine components, and aircraft parts. Titanium, known for its

capability to withstand extreme temperatures, is often used in aviation-based CNC turned parts.

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FAQ's

1. Why choose CNC machining?

CNC machining offers several advantages, making it a preferred manufacturing solution:

1. Speed: CNC machining is known for its rapid production capabilities, allowing for the quick

creation of end-use parts.

2. Accuracy: The precision of CNC machining ensures high-quality and accurate parts, meeting

tight tolerances and specifications.

3. Versatility: CNC machining is a versatile process suitable for a wide range of materials and part

complexities. It can handle various geometries and designs.

4. Cost-Efficiency: Unlike traditional manufacturing methods, CNC machining doesn't require

expensive hard tooling or elaborate set-ups, contributing to cost savings.

2. How Much Does CNC Machining Cost?

The cost of CNC machining a part is influenced by various factors, including:

1. Material: The choice of material significantly impacts cost. Machining materials like Inconel are

more expensive due to increased tool wear and slower cutting speeds compared to materials like

aluminum.

2. Complexity: Parts with complex features are more expensive to machine. For instance,

components with intricate surface shapes incur higher costs than those with flat surfaces.

3. Tolerances: Tight dimensional tolerance requirements contribute to higher costs. Over-specifying

tight tolerances on non-critical features can increase CNC machining expenses.

4. Surface Finish: Achieving mirror finishes demands specialized tooling and machining strategies,

prolonging machining time and elevating costs.

5. Quantity: Low-volume production is inherently costlier per part than large-volume production.

The higher fee stems from spreading initial setup and programming costs over fewer parts.

3. What are your tolerances for machined parts?

Our tolerances for machined parts are as follows:

Local tolerances of +.005”/- .005” are applicable across most geometries in metals, with a variation

of +/- 0.010" for plastics. Tolerances may differ for large parts, particularly concerning flatness over

large parts after heat treatment.

For "As Milled" finish, a minimum surface finish of 125 is required for CNC parts.

All fabricated parts adhere to a dimensional tolerance of 0.010” and an angular tolerance of 1°.

Tapped holes not explicitly called out as features on the quoted CAD model may be machined to the

diameters specified in that model.

Surface treatments (e.g., anodize, bead blast, iridite, powder coat, etc.) will not be applied unless

explicitly paid for and acknowledged.