Comprehensive Overview Of CNC Milling Process

DALIAN, China - Nov. 5, 2023 - PRLog -- CNC milling is a computer-controlled process that involves using cutting tools to remove a portion of the workpiece. Its basic setup includes a workbench and cutting tools attached to the spindle. The workpiece is placed on the workbench of the machine, while the cutting tool rotates to shape the workpiece.

The rotation of the cutting tool will depend on the type and complexity of the CNC milling machine. Most CNC milling parts can achieve high tolerances between+/-0.001 inches and+/-0.005 inches. Some machines can even achieve tolerances of up to+/-0.0005 inches.

Therefore, this process has a wide range of applications and can be used for various materials, including metal, plastic, wood, and glass. It can also help create various customized products to meet unique needs.

CNC milling process

Usually, CNC milling operations are carried out in three stages:

1. Design CAD files

The first stage involves using CAD software to create a virtual representative of your expected product. You can use different CAD-CAM programs to develop the G code required for machining. Transforming CAD design into CNC programming language is very important because it is a language that machines can understand. You can check and modify the code to meet the functionality of the machine. This software also enables manufacturing engineers to simulate the entire milling process. Therefore, they can check for design errors and avoid creating complex models that are difficult to machine.

The operator also needs a technical engineering drawing that includes the following information:

• Dimensions and Key Features of Parts
• tolerance
• Construction line
• Indication of threads
• Organize preferences

2. Set up milling machine

Although CNC milling machines can automatically cut workpieces, certain aspects of the process still require machine operators. For example, the operator must fix the workpiece to the workbench and adjust the tool of the spindle.

Modern milling machines have the ability to process with electricity. Therefore, they have the ability to replace tools during the milling process. This reduces the number of pauses during the operation. However, initial setup and program checks are still required before starting the process.

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