Turning Machining Metal Lathe Parts Service CNC Custom Metal Part Turning

Machining Metal Lathe Parts Service

CNC machining, standing for computer numerical control machining, is a prevalent manufacturing

process that employs automated, high-speed cutting tools to shape designs from metal or plastic

stock.

Standard CNC machines encompass 3-axis, 4-axis, and 5-axis milling machines, lathes, and routers.

Variations exist in how CNC parts are cut, with possibilities such as the workpiece remaining

stationary while the tool moves, the tool staying in place while the workpiece is rotated and moved,

or both the cutting tool and workpiece moving together.

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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.

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

The applications of CNC machining are virtually limitless, offering a myriad of possibilities across

various industries. One notable application is in the woodworking sector, where CNC machines

streamline the production of wooden furniture, saving time and reducing costs.

Complex geometries that would traditionally require a skilled woodworker can now be achieved

efficiently through CNC machining. In lettering and engraving systems, CNC technology is utilized

for marking patterns or text onto surfaces, serving both artistic and serialized part needs.

The electrical industry benefits from CNC machining for tasks such as creating component mounting

holes in printed circuit boards and machining heat sinks for heat-generating electrical components.

Precision equipment for the pharmaceutical industry, including metering pumps, ingredient-dispensing

nozzles, and packaging components, is also manufactured using CNC machines.

Even in the fast-moving consumer goods sector, CNC machining plays a vital role in producing custom

material-handling machinery for the food and beverage industry, as well as contributing to the

fabrication of injection-molded plastic molds used in food packaging.

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FAQ's

1. Why choose CNC machining?

The decision to leverage CNC machining is driven by its attributes of speed, accuracy, and

versatility. This manufacturing solution excels in delivering end-use parts across different

volumes with notable efficiency, eliminating the need for substantial investments in hard tooling

or intricate set-ups.

2. How long does delivery time and quotation take?

The lead time for parts is contingent on their complexity. Parts with low complexity typically boast

a lead time of 2-3 days, while moderate complexity extends the lead time to 2-5 days.

High-complexity parts may require a lead time ranging from 5 to 15 days.

Quoting time is influenced by design complexity, with a range of 1 business day (or faster) for

simpler designs to 3+ business days for more intricate ones.

If you have a design awaiting assessment and quoting, feel free to get in touch with our team.

3. What are standard machining tolerances?

Standard machining tolerances stand at ± 0.005" or 0.13mm, indicating the acceptable range for

dimensions. If a CNC machining tool is specified with a tolerance of ± 0.01 mm, it implies a

permissible deviation of 0.01 mm in each machining operation. When provided with a drawing,

our CNC machining service can achieve part tolerances as fine as ± 0.0002 in.

In the absence of a drawing, all CNC parts align with our ISO 2768 medium standard. Projects

demanding tighter tolerances, such as ±0.025mm or ±0.001", can be accommodated with an

engineering drawing outlining critical features.

4. What size of fillets are added when no specific fillet is specified by the 3D model

or drawing?

In cases where no specific fillet radius is specified in the 3D model or drawing, fillet radii will be

added by the machinist based on their judgment to enhance machining ease.

To ensure a desired fillet radius, specific details should be provided. For a general understanding,

internal vertical edge radii might surpass 1/3 of the depth, and internal horizontal edges may either

be maintained sharp or incorporate a radius within the range of 0.5mm to 1mm.