What is CNC Machining?
CNC stands for computer numerical control. So, CNC machining is a kind of machining process controlled by a computer. Computerized automation allows parts to be manufactured more quickly, accurately, precisely, and with more complex geometries than those produced via manual machining. CNC also reduces manual machining labor that would otherwise be done by humans. While they aren’t machining each part by themselves, people are essential for programming and operating the machines, ensuring that every operation goes smoothly. At SHENGFA Hardware, we provide both metal CNC machining service plastic CNC machining service.
Types of CNC Machining
Depending on the different types of machined parts, there are different types of CNC machines best fit for the job. CNC milling utilizes CNC mills, which consist of a multi-axis system (three, four, or five axes, depending on the part complexity). CNC turning involves Lathe machines, which generally have 2 axes and cut pieces using a circular motion. Electric discharge machines (EDM) utilize electrical sparks into order to mold work pieces into the desired shape. Hobbing is another type of machining process used for cutting gears, splines, and sprockets. Additional CNC machine types include plasma cutters and water jet cutters. SHENGFA Hardware provide full range of metal CNC machining service
CNC Machining Tolerance
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Metals, PEEK, And ULTEM With Drawing
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Other Plastics
With Drawing
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No Drawing
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Linear Dimension
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+/- 0.01 mm
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+/- 0.05 mm
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ISO 2768 Medium
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+/- 0.0003 inch
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+/- 0.002 inch
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Hole Diameters
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+/- 0.008 mm
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+/- 0.05 mm
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ISO 2768 Medium
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(Not Reamed)
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+/- 0.0003 inch
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+/- 0.002 inch
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Shaft Diameters
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+/- 0.004 mm
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+/- 0.05 mm
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ISO 2768 Medium
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+/- 0.00016 inch
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+/- 0.002 inch
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Tolerances listed here are minimums for an ideal case. Looser tolerances may be required depending on process, material choice, or part geometry.
When choose metal CNC machining service provider, please take the following points into consideration:
Experience: Choosing a provider who has been in the machining industry longer will save you time and money. A company with more skill and experience will likely satisfy your needs with less hassle, even giving suggestions when they see potential problems.
Capability: Regardless of time, capability matters a lot. Do they have the complete set of CNC machines (grinding machine, turning machine, milling machine, etc.) needed for your project? Often you will get better pricing, a quick turnaround time, and high precision parts when you work with a provider with excellent machining capability.
Quality Control: Quality control is the litmus test of how good the quality will be. The degree of quality control should be at an acceptable or appropriate level.
Customer Service: Communicating with the machining company should be very easy. They should stick to deadlines, listen to your needs, be helpful, and you should enjoy working with them.
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