CNC Milling

Providing you with reliable on-demand CNC milling services for your rapid prototyping and production part needs. You can get first-class custom milled parts from a variety of quality metals and plastics at competitive prices with us.You can submit an enquiry or drawing today for an online CNC quote.

More than 100 materials can be processed
More than 20 surface treatment processes
Minimum order quantity of 1 piece
Milled parts in as little as 3 day
Tolerance of 0.02 mm
3, 4 and 5 axis milling

About CNC Milling Services – Top CNC Milling / Milling Parts Manufacturer in China

If you are looking for superior quality CNC milled parts at low prices, then Jiejie Manufacturing Ltd. is the ideal choice for you. We are a professional CNC company in China with state-of-the-art CMC milling centers and milling machining centers, and skilled machinists. Our operators are well versed in CAD and CAM programs and are able to provide our customers with the best CNC milling services and produce the highest quality parts and components. We also offer custom CNC milling services, including 3- and 5-axis milling, rapid prototyping, and precision CNC milling and turning. Our rapid CNC milling products are used in a wide range of applications such as automation design, locksmithing, automotive parts machining, mechanical milling, defense industry, medical equipment, and lighting parts machining. If you need online CNC quotation, please send your inquiry or drawing to us as soon as possible.

What is CNC milling?

CNC milling is a method of machining using computer numerical control to control a milling machine. In milling, the milling cutter rotates and moves to remove material from the surface of the workpiece to create the desired shape and size. In CNC milling, a computer program is used to control the movement of the milling cutter, resulting in a more accurate, repeatable and efficient milling process.

What is the workflow of CNC milling?

The workflow of CNC milling generally consists of the following steps.
Designing drawings: Design and drafting of mechanical parts using CAD software.
Programming: Conversion of the CAD drawing into a digital control program (G-code) that can be recognized by the CNC milling machine.
Preparation: Select appropriate tools, fixtures and machining solutions according to the material of the machined part, and make necessary preparations such as machine tool adjustments and tool changes.
Machining: Place the machined part on the machine and run the G-code through the CNC system for milling.
Inspection and trimming: The machined part is inspected for dimensions, surface roughness, etc., and the necessary trimming and grinding, etc., are performed.
Finished product: After inspection and trimming, the product is considered finished and ready for subsequent processing and assembly, etc.

What are the advantages of CNC milling?

The advantages of CNC milling include.

High Accuracy: Because CNC milling is controlled by a computer program, very high accuracy can be achieved, often to 0.02 mm or less.

Efficient: CNC milling allows for the rapid production of large quantities of workpieces without the need for manual operations. This not only increases productivity, but also reduces costs.

Repeatability: Because the computer program controls CNC milling, the parts produced are very consistent, ensuring high quality mass production.

Programmability: CNC milling programs can be easily modified and changed, so different parts and components can be produced quickly.

Flexibility: CNC milling can handle a variety of different shapes and sizes of workpieces, allowing for a variety of different machining methods, thus increasing machining flexibility.

High level of automation: CNC milling is controlled by computer programs, so the operator only needs to set up the program and monitor the machining process, no manual operation is required, which can reduce the operator’s labor intensity and work risks.

Equipment and tools for CNC milling?

The main equipment and tools required for CNC milling are as follows.

CNC milling machine: The machine tool used to perform the milling operation. The control system controls the movement of the milling cutter on the surface of the workpiece to achieve precision machining.

Control system: The computer system that controls and monitors the milling machine, including hardware and software, used to program and run the milling machine.

Tool library: The tool library for storing milling tools, which can automatically select and change different types of tools to suit different machining tasks.

Automatic tool change system: A system used to automatically change milling tools to improve machining efficiency and accuracy.

Fixture: Fixture used to fix the workpiece, different types of fixtures can be used to adapt to different shapes and sizes of workpieces.

Cooling system: Cooling system used to cool and lubricate the cutting process, which can extend the life of milling cutters and improve machining quality and efficiency.

Programming software: Software for writing and editing CNC milling programs, which can simulate the machining process on the computer in order to optimize the machining solution.

CAD/CAM software: CAD (computer-aided design) and CAM (computer-aided manufacturing) software for designing and manufacturing workpieces that converts design drawings into CNC programs and automatically generates toolpaths and operating instructions.

What are the areas of application of CNC milling?

CNC milling is widely used in various fields in the manufacturing industry, including but not limited to the following.

Aerospace: CNC milling is widely used in the field of aerospace for manufacturing various parts of aircraft and spacecraft, such as turbine blades, rudder surfaces, engine parts, etc.

Automotive manufacturing: CNC milling is used in various areas of automotive manufacturing, such as the manufacture of engines, transmissions, braking systems, chassis and other components.

Electronics industry: CNC milling is widely used in the electronics industry for the manufacture of various electronic components, such as parts for cell phones, computers, tablet PCs and other devices.

Medical devices: CNC milling is also widely used in the manufacture of medical devices, such as artificial joints, orthodontic appliances and other medical equipment manufacturing.

Oil and gas extraction: CNC milling is used to manufacture parts for oil and gas extraction equipment, such as drill bits, drill pipes, casing, etc.

Shipbuilding industry: CNC milling is used in various fields in the shipbuilding industry, such as the manufacture of hull, bridge, propeller and other components.

Solutions to common problems of CNC milling?

The following are some common CNC milling problems and solutions.

Cutting speed is too slow or too fast: If the cutting speed is too slow, it may lead to long machining time or poor surface quality of the part. If the cutting speed is too fast, it may lead to tool wear or breakage. The solution is to achieve optimal cutting conditions by adjusting the cutting speed and feed rate.

Tool wear or breakage: Tool wear or breakage may result in a loss of part surface quality and may even damage the machine. To prevent this from happening, the tool should be replaced promptly and proper tool selection and cutting parameters should be ensured.

Inaccurate part dimensions: This can be caused by machine errors, tool deviations or program errors. This can be solved by adjusting the machine and tool, and by checking the program.

Poor part surface roughness: This can be caused by incorrect cutting parameter settings, tool wear, or unstable workpiece fixation. This can be solved by adjusting the cutting parameters, replacing the tool or redesigning the fixture.

Program error or file corruption: This can cause the machine to fail to read the program or file correctly, resulting in a work stoppage. To avoid this, programs and files should be backed up regularly, and suitable software should be used to write and manage the programs.

Unsuitable materials: Different materials have different physical and chemical properties and may require different cutting parameters and tooling options. Selecting the right material and cutting tool is critical to ensure quality machining.

System failure: If the machine or control system fails, it may cause work to stop or damage the machine. In this case, a professional technician should be contacted for repair and restoration.

Why choose Jega for cnc milling service?

1. Over 10 years of industry experience

Many engineering masters have more than 10 years of experience
Provide technical consultation, pre-approved drawing files, cost analysis, etc.
Machining more than 100 kinds of materials and more than 20 kinds of surface treatment processes

2. Dozens of high-precision production equipment

Imported equipment: five-axis machine and integrated turning and milling machine
Equipment can complete more than 20 kinds of machining processes
Stable operators and regular training to improve