How is the accuracy and speed of laser punch affected by material properties?
Publish Time: 2024-12-26
Laser punch is a high-precision and high-efficiency processing method that is widely used in micro-processing of various materials. However, its accuracy and speed are greatly affected by the characteristics of the processed materials.Physical properties of materials such as hardness, melting point, and thermal conductivity are key factors in determining the effect of laser punch. Materials with higher hardness, such as cemented carbide and ceramics, require higher laser energy density and longer processing time to complete drilling. This is because high-hardness materials have different absorption and reflection characteristics of lasers, which leads to changes in the distribution and transmission of laser energy inside the material, thus affecting the drilling speed and accuracy.The melting point of the material is also an important influencing factor. Materials with lower melting points are more likely to reach the vaporization temperature under the action of lasers, thereby achieving rapid drilling. However, materials with higher melting points require higher laser energy and more precise focusing control to ensure the stability and accuracy of the drilling process. In addition, the thermal conductivity of the material will also affect the effect of laser punch. Materials with high thermal conductivity will quickly transfer heat to the surrounding area under the action of lasers, causing the temperature of the drilling area to rise, which in turn affects the drilling speed and accuracy.In addition to the above physical properties, the surface state of the material will also affect laser punching. For example, contamination, oxide layer or coating on the surface of the material will change the way the laser interacts with the material, thus affecting the punching effect. Therefore, before laser punching, the material needs to be properly surface pretreated to improve the accuracy and speed of punching.In summary, the accuracy and speed of laser punching are significantly affected by the characteristics of the processed material. In order to achieve high-precision and high-efficiency laser punching, it is necessary to select appropriate laser parameters and processing strategies according to the physical properties and surface state of the material. At the same time, by continuously optimizing the performance and process parameters of laser punching equipment, the accuracy and speed of laser punching can be further improved to meet the needs of micro-processing in different fields.
