Industrial metal CNC machining: precision art of modern industry

I. Basic concept of numerical control machining

Industrial metal numerical control machining refers to an advanced technology that uses a digital control system to process metal materials. Numerical control machine tools precisely control the relative movement between tools and workpieces through pre-programmed programs, thereby realizing various processing operations such as cutting, drilling, milling, and boring on metal parts.

II. Main equipment for numerical control machining

Numerical control machine tools
Numerical control machine tools are the core equipment for numerical control machining. They are composed of machine tool bodies, numerical control systems, drive systems, auxiliary devices, etc. According to different processing methods, numerical control machine tools can be divided into multiple types such as numerical control lathes, numerical control milling machines, and numerical control machining centers.
Tools
Tools are the parts that directly act on workpieces in numerical control machining. Their quality and performance directly affect the processing effect. Commonly used numerical control tools include carbide tools, high-speed steel tools, ceramic tools, etc.
Fixtures
Fixtures are used to fix workpieces to ensure stability and precision during the processing process. The design of fixtures needs to be customized according to the shape, size, and processing requirements of workpieces.

III. Process flow of numerical control machining

Design and programming
First, according to the design requirements of parts, use CAD/CAM software for three-dimensional modeling and programming. Programmers need to determine processing processes, select tools, and set cutting parameters, etc.
Preparation work
Prepare the workpiece material and carry out necessary pretreatment such as cutting and forging. At the same time, check the status of the numerical control machine tool to ensure the normal operation of the equipment.
Clamping the workpiece
Use fixtures to fix the workpiece on the worktable of the numerical control machine tool to ensure the accurate position of the workpiece.
Tool setting and debugging
Install the tool on the machine tool spindle and perform tool setting operations to determine the relative position between the tool and the workpiece. Then perform debugging to check the correctness of the program and the rationality of the processing parameters.
Processing process
Start the numerical control machine tool and perform processing automatically according to the program. During the processing process, operators need to closely monitor the running status of the machine tool and deal with possible problems in time.
Quality inspection
After processing is completed, perform quality inspection on the parts, including dimensional accuracy, surface roughness, shape accuracy, etc. If it does not meet the requirements, adjustments or reprocessing is required.

IV. Application fields of numerical control machining

Aerospace
In the aerospace field, numerical control machining is widely used in manufacturing high-precision parts such as aircraft engine parts and fuselage structural parts. The quality and performance of these parts are directly related to the safety and reliability of aircraft.
Automobile manufacturing
Automobile manufacturing is another important application field of numerical control machining. Numerical control machining can produce high-precision engine cylinder blocks, transmission cases, wheels and other parts, improving the performance and quality of automobiles.
Mold manufacturing
Molds are indispensable tools in industrial production. Numerical control machining can manufacture molds of various complex shapes, such as injection molds and stamping molds.
Electronic equipment manufacturing
In electronic equipment manufacturing, numerical control machining can produce high-precision mobile phone cases, computer cases and other parts to meet the appearance and precision requirements of electronic equipment.