High-speed cutting refers to a technology that uses cutting speeds much higher than conventional cutting speeds. Generally speaking, when the cutting speed exceeds 5 to 10 times the traditional cutting speed, it can be called high-speed cutting. High-speed cutting usually uses high-speed spindles, advanced cutting tools and optimized processing parameters to achieve efficient and high-precision processing.
The principle of high-speed cutting is mainly based on the following aspects:
1. Reduced cutting force
During high-speed cutting, the cutting force will decrease significantly as the cutting speed increases. This is because during high-speed cutting, the temperature of the cutting deformation zone increases and the yield strength of the material decreases, which reduces the cutting force. In addition, the contact time between the tool and the workpiece during high-speed cutting is extremely short, which also helps to reduce cutting forces.
2. Cutting heat dispersion
During high-speed cutting, due to the fast cutting speed, although the cutting heat generated per unit time increases, the cutting heat is mainly concentrated near the cutting edge of the tool, and the cutting heat has no time to be transmitted to the workpiece and other parts of the tool, and is quickly carried away by the chips. Walk. Therefore, high-speed cutting can effectively reduce the thermal deformation of the workpiece and improve the machining accuracy.
3. Extended tool life
Although the cutting temperature of the tool is higher during high-speed cutting, the wear of the tool is slowed down due to the reduction of cutting force and the dispersion of cutting heat. In addition, high-speed cutting often uses advanced tool materials and coating technologies to further increase tool life.
Advantages of high-speed cutting
1. Improve production efficiency
The cutting speed of high-speed cutting is fast, which can greatly shorten the processing time. At the same time, due to the reduced cutting force, the power consumption of the machine tool is also reduced accordingly, allowing higher feed speeds to be achieved, further improving production efficiency.
2. Improve processing quality
High-speed cutting can reduce cutting forces and thermal deformation, thereby improving machining accuracy and surface quality. In addition, the chips become thinner during high-speed cutting, which is conducive to chip removal, reduces interference factors during the processing, and further improves the processing quality.
3.Wide range of application
High-speed cutting technology can process a variety of materials, including steel, cast iron, aluminum alloys, titanium alloys, etc. For some difficult-to-machine materials, such as high-temperature alloys, cemented carbide, etc., high-speed cutting can also achieve better processing results.
4. Reduce production costs
Although high-speed cutting requires the use of advanced machine tools, cutting tools and processing parameters, the overall production cost can be reduced due to factors such as improved production efficiency, good processing quality, and long tool life.
Key technologies for high-speed cutting
1. High-speed spindle technology
High-speed spindle is a key component to achieve high-speed cutting. High-speed spindles usually use electric spindle technology, which has the characteristics of high speed, high precision, and low vibration. At present, the speed of high-speed spindles can reach tens of thousands or even hundreds of thousands of revolutions, providing powerful power support for high-speed cutting.
2.Tool technology
High-speed cutting places very high demands on cutting tools. Tools need to have high hardness, high strength, high heat resistance and good wear resistance. At the same time, tool geometry and coating technology also need to be optimized to adapt to the requirements of high-speed cutting. At present, commonly used high-speed cutting tool materials include carbide, ceramics, cubic boron nitride, etc.
3. CNC system technology
High-speed cutting requires precise motion control and high-speed data processing capabilities. The CNC system needs to be able to quickly respond to machining instructions and achieve high-precision trajectory control and high-speed interpolation operations. At the same time, the CNC system also needs to have powerful programming functions and intelligent processing optimization functions to improve processing efficiency and quality.
4. Cooling and lubrication technology
A large amount of cutting heat generated during high-speed cutting needs to be discharged promptly and effectively, otherwise the processing quality and tool life will be affected. Cooling lubrication technology can effectively reduce cutting temperature, reduce tool wear, and improve processing quality. At present, commonly used cooling and lubrication methods include air cooling, oil mist cooling, minimum quantity lubrication, etc.
Application areas
1.Aerospace field
In the aerospace field, the accuracy and quality requirements for parts are extremely high. High-speed cutting technology can process high-precision, complex-shaped aerospace parts, such as aircraft engine blades, fuselage structural parts, etc. At the same time, high-speed cutting can also improve production efficiency, reduce production costs, and meet the rapid development needs of the aerospace field.
2.Automobile manufacturing field
The automotive manufacturing field also has very high requirements for production efficiency and processing quality. High-speed cutting technology can process high-precision automotive engine parts, transmission parts, molds, etc. At the same time, high-speed cutting can also achieve lightweight design and improve vehicle performance and fuel economy.
3. Mold manufacturing field
Mold manufacturing is one of the important application areas of high-speed cutting. High-speed cutting can process high-precision, complex-shaped molds, such as injection molds, stamping molds, die-casting molds, etc. At the same time, high-speed cutting can also shorten the manufacturing cycle of the mold and improve the quality and service life of the mold.
4.Electronic and electrical fields
In the field of electronic and electrical appliances, high-speed cutting can process high-precision electronic parts, electrical casings, etc. At the same time, high-speed cutting can also achieve miniaturization processing to meet the needs for miniaturization and lightweight in the electronic and electrical fields.
Ares Precision Machinery Technology Co. Ltd.
