As the foundation of the automotive industry, automotive components are necessary factors to support the sustainable and healthy development of the automotive industry. The quality of its products is crucial for ensuring the overall quality of the vehicle, as it can be said to have a ripple effect. In China, with the booming development of the automotive market, the production requirements for automotive parts have become more stringent. Establish a quality and safety traceability system for automotive components, achieve full lifecycle management of products and recall of defective products by component and automotive production enterprises, and ensure the safety of automotive passengers· As an automotive company, when a product is found to have a certain defect and needs to be recalled, accurately define the recall scope of the automotive product. The parts of automobiles are provided by hundreds of suppliers, with tens of thousands of types of parts. Suppliers need to do a lot of work in part traceability. At the production site of the host factory, when assembling parts, it is necessary to fully record various part numbers, production batches, safety levels, production dates, and other information in order to achieve part traceability. When assembling automotive products, the assembler records the batch information of the parts and the corresponding car identification code. So it is necessary to establish a parts traceability system and create a list of traceable parts to solve various problems in parts traceability during production and assembly. This includes the following information: part number, part name, model, mold number, die-casting machine number, safety level, production date, workpiece number, supplier name, receiving point code, etc.

In the early days, the traceability of automotive parts was mainly achieved by marking the serial number on the product. After the birth of barcodes, they were quickly applied to the identification of automotive parts, but their limited information and poor fault tolerance prevented them from being fully popularized. This problem was not solved until the birth of QR code technology. A regular one-dimensional barcode can only represent approximately 20 letters or numbers in a horizontal position, without error correction function, and requires support from a backend database for use. On the other hand, a two-dimensional barcode stores information both horizontally and vertically, and can accommodate a large amount of information such as letters, numbers, Chinese characters, photos, fingerprints, etc. It is quite a mobile database. Under the same amount of information, QR codes have the advantages of fast recognition speed, high data density, and small space occupation compared to other QR codes. QR two-dimensional achieves 360 degree high-speed reading. It can read 30 QR codes containing 100 characters per second. The QR code has a high capacity density and can accommodate 1817 Chinese characters, 7089 numbers, and 4200 English letters. QR codes use data compression to represent Chinese characters, and only 13 bits can represent one Chinese character, which is 20% more efficient than other two-dimensional barcodes for representing Chinese characters. QR code has four levels of error correction function, which can correctly read even if it is damaged or broken. QR codes have strong resistance to bending, and can be quickly recognized even when attached to curved items. QR codes can be divided into 16 QR codes, which can be read at once. They are suitable for printing with limited printing area and narrow space, and are widely used in automotive parts traceability.

By scanning the QR code on the components, any product can be traced back to various parameters such as the supplier, batch number, production time, and production personnel, which customers can view at any time. Each product has a unique "electronic identity certificate" that can be traced back to its source and destination, so you no longer have to worry about being deceived by counterfeit parts.

The main advantage of laser marking for automotive parts is that it is a fast, programmable, non-contact process that is durable and usually not affected by the required steps in the production process or the harsh on-site environment it is subjected to. The use of laser marking based on QR code technology can facilitate the traceability of products throughout their entire lifecycle. Honglei Laser has many years of industry experience. In order to meet the requirements of automotive parts manufacturers for production automation, improved production efficiency, and easy online management, it has brought a variety of cost-effective laser marking equipment to the market. It can be used in conjunction with automated production lines for online or offline single machine work, realizing various functions such as manual feeding, fully automatic feeding, marking, and unloading, completely replacing traditional pneumatic engraving methods. And the scanning pass rate of the subsequent work of engraving is over 99%, the scanning gun reads the QR code accurately, and the scanning time is less than 2s. After a one-time investment, there is no need to replace components, truly achieving maintenance free operation, greatly improving production efficiency, and effectively reducing production costs. And it is significantly superior to pneumatic methods in terms of coding quality and efficiency. Due to the non-contact nature of laser coding, only positioning is required during engraving, without the need for clamping. Can cooperate with robots to complete functions such as automatic clamping, feeding, coding, and automatic scanning of workpieces. In response to the needs of automotive parts companies, Honglei Laser has long embedded powerful database support and networking functions in its marking software. It can seamlessly link with the database network of automotive vehicle manufacturers and component manufacturers, automatically establish a marking information database, communicate with upstream and downstream databases, and achieve full product tracking.

Partial case presentation

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  Engine cylinder head full/semi-automatic laser coding machine

  Also known as low-pressure cylinder head laser engraving machine or low-pressure casting laser engraving machine, it is mainly used for QR code laser marking of low-pressure cast iron cylinder heads and aluminum alloy cylinder heads for automotive engines.

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  Engine cylinder block full/semi-automatic laser coding machine

  Also known as cylinder laser engraving machine or cylinder two-dimensional code marking machine, it is mainly used for two-dimensional code laser marking of low-pressure cast cylinder bodies for automotive engines.

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  Automatic laser coding machine for automotive chassis

  Laser marking of production numbers, QR codes, etc. for various welded structural components such as front and rear brackets, sub frames, triangular arms, and upper swing arms specifically designed for automotive chassis.

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  Automobile wheel laser coding machine

  Mainly used in wheel hub manufacturing production lines to achieve fully/semi automatic wheel hub coding according to existing production line requirements. It can also meet the requirements of manual loading and automatic coding of wheel hubs.

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  Automobile engine crankshaft laser coding machine

  Fast positioning and pneumatic clamping are achieved through a dedicated V-shaped fixture, and the laser scanning head is manually adjusted in three dimensions to mark various crankshaft end faces through horizontal laser output.

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  Automatic laser marking machine for automotive bearings

  Meet the requirements of bearing manufacturers for production automation and online management, equipped with full/semi-automatic feeding devices, suitable for fine deep carving and large-scale one-time marking of various bearing surfaces.