The cutting methods of thin film cutting systems mainly include the following common techniques, each of which is suitable for different materials and cutting requirements:
1. Laser cutting
Principle: By irradiating the material with a laser beam and heating it to its melting point at high temperature, a molten pool is formed, and the melted material is blown away by an airflow to achieve cutting.
Applicable materials: Suitable for metals, plastics, ceramics, glass, composite materials, etc.
Advantages:
High precision, smooth cutting edges.
Can cut complex shapes.
Cutting without touching the material reduces material deformation.
Disadvantages:
The cutting thickness is limited and the cost is high.
2. Water jet cutting (high-pressure water jet cutting)
Principle: Use high-pressure water flow, accelerate the water flow through a nozzle, and mix abrasives for cutting. Suitable for soft materials and materials with low hardness, and can also cut composite materials.
Applicable materials: stone, metal, glass, ceramics, composite materials, etc.
Advantages:
No heat affected zone is generated, and the cut material is not damaged by heat.
Suitable for cutting sensitive materials such as stone, glass, etc.
Disadvantages:
Slow speed, not suitable for large-scale production.
The cutting thickness is limited by water pressure and nozzle design.
3. Electric Discharge Machining (EDM)
Principle: High temperature is generated on the surface of the material through electric discharge, causing local melting and evaporation of the material, ultimately achieving cutting.
Applicable materials: mainly used for metal materials with high hardness, especially suitable for the processing of precision parts.
Advantages:
Can cut very hard materials.
High precision, suitable for processing complex inner holes and small parts.
Disadvantages:
The cutting speed is slow and the production efficiency is low.
Precision equipment and high-tech personnel are required for operation.
4. Ultrasonic cutting
Principle: By using ultrasonic vibration, the vibration energy is transmitted to the cutting tool, and the material is cut through high-speed vibration, suitable for soft or brittle materials.
Applicable materials: plastic, rubber, fiber composite materials, etc.
Advantages:
The material surface is not easily deformed during cutting.
Smooth cutting edge, suitable for thin sheet materials.
Disadvantages:
The scope of application is relatively narrow, mainly used for soft or brittle materials.
The cutting speed is slow and there are certain limitations on the cutting thickness.
5. Mechanical cutting (tool cutting)
Principle: Use sharp cutting tools to directly cut materials, usually by rotating or moving the tool up and down for cutting.
Applicable materials: Suitable for softer materials such as metal sheets, plastics, paper, etc.
Advantages:
Low cost and simple operation.
Suitable for large-scale production and rapid cutting.
Disadvantages:
Poor cutting accuracy may result in significant cutting marks.
Material deformation may occur during the cutting process.
6. Cutting (mechanical cutting)
Principle: Physical cutting of materials is performed using rotating cutting tools such as milling cutters, saw blades, etc.
Applicable materials: Usually used for metal processing, such as aluminum, steel, etc.
Advantages:
Fast cutting speed, suitable for mass production.
It can handle multiple materials and has strong adaptability.
Disadvantages:
There may be burrs on the cutting surface, which require further processing.
The cutting accuracy is relatively low.
7. Blade cutting (laser blade or high-speed rotating blade)
Principle: Cutting is performed using high-speed rotating blades, similar to mechanical cutting, but with finer cutting tools for high-speed cutting.
Applicable materials: suitable for soft materials and medium hardness materials, such as foam, cardboard, plastic, etc.
Advantages:
Fast cutting speed, suitable for mass production.
Less deformation occurs, suitable for thin sheet materials.
Disadvantages:
The cutting accuracy is low and it is easy to produce cutting marks.
The applicable materials are relatively limited.
summary
Different cutting methods are suitable for different materials and cutting requirements. When choosing an appropriate cutting technique, factors such as material properties, cutting accuracy, production speed, cost, and equipment availability need to be considered. In the process of cutting thin sheets, high precision and surface quality are often required. Therefore, laser cutting and waterjet cutting are commonly used in high-precision applications, while mechanical cutting and blade cutting are suitable for low-cost and high-volume production scenarios.