CNC Machining
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CNC milling
A very popular machining process that involves the use of CNC milling cutters to create milled parts with specific shapes and details on a fixed workpiece. It is considered to be the most common machining process in the industry. The process involves a circular motion of the tool to create slots, holes, recesses, grooves and other features in the workpiece. CNC milling is highly versatile and can be used to create complex shapes and parts with high accuracy and efficiency.
CNC turning
A very advanced technique for creating cylindrical features on a workpiece. In this process, a block of material is held on a CNC turning center or lathe and rotated at high speed while cutting tools enter the rotary axis to machine the workpiece. The result is highly accurate and efficient CNC-turned parts with cylindrical features.
Grinding
A precision machining method that cuts, grinds and finishes the surface of a workpiece by using a grinding tool such as a grinding stone. Compared with other machining methods, grinding machine processing can achieve higher precision, better surface quality and higher machining efficiency.
Mill-Turn Machining
An advanced CNC machining technology that combines the capabilities of milling and turning operations, allowing complex parts to be machined on the same machine. Typically, this machining process involves multiple axes and cutting tools that can be performed on a single machine, resulting in increased productivity and accuracy.
CNC machining can process many metal and plastic materials
Metal materials: ordinary carbon steel, alloy steel, tool steel, aluminum alloy, brass, purple copper, titanium alloy, stainless steel, ferritic, austenitic, martensitic, etc.
Plastic materials: PE, PP, PC, PEEK, nylon, ABS, Bakelite, FR4, PTFE, etc.
1. What is CNC machining?
A process in which a machine tool or robot is controlled by a computer program to machine raw materials or workpieces. This method of machining is different from traditional manual or automatic machine tool machining methods because in CNC machining, the movement of the machine tool or robot is controlled by a digital control system. This digital control system guarantees a very high level of accuracy and repeatability, thus ensuring a stable and consistent quality of the machined workpiece.
2.How does CNC machining work?
“CNC machining is to convert 3D models into machining programs (G-code) through CAD (Computer Aided Design) software, and then transfer the programs to CNC machine tools via USB, Ethernet, etc. to control the machine tools for automated production.
Specifically, CNC machining generally includes the following steps:
Design and create 3D models: use CAD software to design the product or part to be processed.
Generate the machining program: the CAD file is converted into a machining program (G code) that can be executed by the machine.
Transfer the machining program: transfer the machining program to the CNC machine control system.
Set the machine parameters: set the machining parameters of the machine, including cutting speed, feed rate, tool type, etc.
Start machining: start the machining program and control the machine tool to complete the machining process automatically.
Check the quality: check whether the quality of the machined workpiece meets the requirements, if it does not meet the requirements, you need to carry out secondary processing or adjust the machine parameters.”
3. The advantages of CNC machining?
“CNC machining has the following advantages:
High precision: CNC machine tools with digital control system are operated by pre-designed programs, so the machining accuracy is higher than traditional manual or mechanical machining, and can be accurate to the micron level.
High efficiency: CNC machine tools combined with computerized digital control systems reduce manual intervention and waiting time, which can substantially reduce production cycles.
High consistency: Because CNC machining is pre-designed by the program, the machine tool runs according to a fixed program, so product uniformity, dimensional accuracy, etc. can be guaranteed, ensuring the consistency of batches of products in quality.
Wide adaptability: CNC machining can process complex shapes and precision parts of various materials, such as iron, copper, aluminum, plastic, etc.
Multifunctional performance: CNC machine tools have the versatility to use different processing tools and change the parameters of the tool to meet different needs.
Cost reduction:Since CNC technology can realize digital design and digital manufacturing, it reduces the cost of product development and manufacturing, and improves the efficiency and competitiveness of the manufacturing industry.”
4.Equipment and tools for CNC machining?
“CNC machining generally requires the following equipment and tools:
CNC machine tools: including CNC milling machines, CNC lathes, CNC drilling machines, CNC grinding machines, etc., which can perform precision cutting, drilling, milling and grinding on different materials.
CNC programming software: CNC programming software usually provides a graphical interface and machine language compiler, which can convert manual programming into digital code and can simulate the entire machining process of CNC machining.
Tools: CNC machines need to use a variety of tools to cut, drill and mill workpieces of different shapes and materials.
Tooling: Tooling is usually used in industries such as casting, forging and pressure machining, and can be used to manufacture products of various shapes and sizes.
Fixture: CNC machining requires the workpiece to be fixed to the machine tool, so fixtures are needed for fixing.
Control system: CNC control system is the core of CNC machining, which allows programming, compiling and issuing commands to control the machine surface movement and machining depth to achieve the desired shape and size.
Computer: The computer is used to run the CNC programming software and control system to transfer machining programs to the CNC machine.
In addition to the above equipment and tools, in addition to the corresponding machining sections and personnel, including machining sections and CNC programming and operation workers, etc.”
5. The fields of application of CNC machining?
“Aerospace: used to manufacture a variety of aerospace parts, such as gas turbine blades, aircraft engine combustion chamber, aviation models. Aerospace field of precision and reliability requirements are very high, must use CNC machining to ensure product quality.
Automotive industry: used in the manufacture of automotive parts, such as engine cylinder heads, automotive chassis and transmission parts. CNC machining can ensure high precision, high consistency, and high production efficiency.
Electronics industry: Used to manufacture precision electronic and semiconductor components, such as CPU and IC chip connectors. CNC machining can achieve high precision and highly standardized production.
Medical device industry: It is used to manufacture high precision and high quality medical devices. It can be applied to the manufacture of organic glass products, and surgical instruments, etc.
Shipbuilding: It is used to manufacture propellers, bridges, masts, propeller shafts, large metal components, etc. of ships.
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6. CNC machining solutions to common problems?
“The following are some common problems and the corresponding solutions:
The machine tool produces a strange noise during machining: this may be due to tool wear, machine tool bearing wear, poorly fixed workpiece, etc. Need to check the machine components and replace the worn parts.
Uneven machining surface: This may be due to tool wear, improper tooling, improper workpiece material, etc. You need to check the tool and replace it with a new one, and choose the right tool according to different workpiece materials.
Dimensional deviation: This may be caused by problems with the template, program, material quality, machine tool accuracy, etc. In this case, the relevant equipment should be calibrated or the program should be readjusted.
Machine failure: This may be due to problems with the machine tool equipment itself or with the control system. Need to promptly unplug the power, check the equipment or start software debugging tools to diagnose and deal with the fault.
Computer software problems: may be due to software installation or operational problems, you need to check the correctness, or reinstall the software.”