威廉希尔官方下载

Laser Engraving QR Codes on Aluminum and Aluminum Alloy

威廉希尔官方下载Feb 04, 2020

We all know that the core component of laser technology is the laser, which is the laser light source in the entire optical path system, just like the human heart. The laser is also the heart of laser equipment such as laser engraving machines and laser cutting machines. In the automotive industry, the core component of an automobile is the engine. The engine is generally composed of two parts, one is the cylinder block and the other is the cylinder head. The two are connected by bolts to form the engine.

 

Generally speaking, the materials of the cylinder block and the cylinder head should have sufficient strength, good castability and machinability. The common cylinder block and cylinder block materials are cast iron and alloy cast iron. With the increasing application of aluminum and aluminum alloys, and the good thermal conductivity of aluminum alloys, which is conducive to increasing the compression ratio, the use of aluminum alloy materials in cylinder blocks and cylinder heads is becoming more and more common. Therefore, the materials of the cylinder block and cylinder head in the current market are mainly cast iron, alloy cast iron and aluminum alloy.

 

With the development of marketization, the degree of brand attention and brand promotion in the automotive market must far exceed that of the laser industry, and the brand's anti-counterfeiting and engine information must be linked to the traffic police management system to prevent unauthorized changes to the engine. Changing the car is also a protection of the brand. Among the current anti-counterfeiting technologies, the most advanced technology is laser holographic anti-counterfeiting, but it is still in its infancy and is not yet mature enough to be used in the automotive field. The method of anti-counterfeiting and information transmission of the body and the cylinder head is a two-dimensional code.

 

A two-dimensional code is a text-based numerical information represented by a number of binary corresponding geometric shapes. Its character set includes all 128 characters and can hold up to 1850 characters or 2710 numbers or 1108 bytes or more than 500 Chinese characters. The information capacity is about tens of times higher than that of ordinary barcodes. Therefore, two-dimensional codes are used in the information transmission and anti-counterfeiting of advanced automobile cylinder bodies and cylinder heads, which is also linked to the traffic police management system. This kind of QR code information transmission and anti-counterfeiting method is becoming more and more sought after. I believe many friends have also noticed that, for example, QR codes are now used for anti-counterfeiting in business licenses. QR codes have become a trend. Just as laser marking and engraving are replacing traditional pneumatic marking and inkjet coding, it is also a process and trend of industrial modernization.

 

There are two ways of engraving the two-dimensional code of the automobile cylinder body and cylinder head currently used on the market, one is pneumatic engraving, and the other is laser engraving technology. I believe that everyone is very aware of the pneumatic engraving. Before the laser engraving technology was applied to the automotive industry, the information transmission of the cylinder block and the cylinder head was achieved by pneumatic engraving. The disadvantage of this method is that it uses contact processing. Printing is noisy, the surface will produce burrs, the depth of the engraving will affect the surface of the workpiece, and the impact of material hardness. With the development of information technology, people have higher and higher requirements for accuracy and aesthetic effects in daily life and industrial production. Pneumatic marking has gradually been excluded from two-dimensional code engraving, and there has been a demand for updated products. They aimed at laser engraving.

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The left picture shows the laser engraving two-dimensional code on the car cylinder, and the right picture shows the pneumatic engraving two-dimensional code on the car cylinder.


Laser engraving uses high-energy laser beam processing as the name implies, non-contact processing method, which is significantly superior to pneumatic engraving in the engraving effect, and is faster, more environmentally friendly and energy-saving, and has no consumables, which is more conducive to saving production costs . In the early laser engraving technology, desktop or portable laser engraving was commonly used. This method is not conducive to the production of industrial automation and cannot meet the two-dimensional code engraving processing requirements of automobile cylinder bodies and cylinder heads. With the emergence of the situation and market demand, KINGS Laser has developed a laser marking machine for automotive cylinder bodies and cylinder heads for industrial automation.

 

This equipment is specially designed for laser engraving of two-dimensional codes of automobile cylinder bodies and cylinder heads, and its purpose is to replace the traditional pneumatic engraving technology. Of course, this device is not only applicable to the automotive industry. The cylinder block and cylinder head of the car are just one surface, which can be used for engraving of two-dimensional codes such as cast iron, alloy cast iron and aluminum alloy. 







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