Laser marking machines|High-Precision Laser Etching and Decoding Technology for Two-Dimensional Barcodes

High-precision laser marking technology uses a precision optical system and optimized parameters to achieve micron-level markings on the surfaces of metals, plastics, and other materials.It will explore how to improve the read rate by controlling the laser power, calibrating the focal length, and pre-processing the surface, and will share the key points for selecting industrial-level equipment and solutions for common problems that can cause reading to fail.

With the development of the Internet of Things and smart manufacturing, the use of QR codes in industrial identification has grown explosively.The problems of inkjet printing, such as ink flaking off and low precision, are solved by laser marking technology.With the cooperation of a fiber laser and a galvanometer scanning system, a two-dimensional barcode with 30 × 30 modules can be marked in an area of 0.8 mm2, with a minimum line width of 0.02 mm.However, in practical applications, there are often problems with scanners having difficulty reading the codes. This often arises from the reflective properties of the material, inconsistent depth of the marks, or insufficient contrast.

The key to increasing the read rate is fine-tuning the manufacturing parameters.When the laser power was stabilized at 85-90 watts, and the scanning speed was controlled at 1200mm / s, the QR codes on the surface of the 304 stainless steel were successfully identified for the first time at a rate of 98.7 %.For aluminum and other highly reflective materials, a 5000 Hz pulse frequency and a 45 ° ring-shaped light path are used to effectively reduce the interference of mirror reflections.In addition, sandblasting or oxidation coating can be used to increase the contrast of the QR code by more than 40 %.

In special environments, such as medical equipment, the durability of the mark must be considered.The honeycomb microstructure formed by the dual-pulse technique ensures a high rate of recognition and also allows the marked area to pass a 48-hour salt-spray test.One manufacturer of automotive parts, for example, reduced its monthly error rate from 37 to two after upgrading to a laser marking system, and reduced annual maintenance costs by NT $ 150,000.

A Guide to Laser Markers: How to Select the Right Laser Marker

Want to make sure your barcode scanner can efficiently read laser-etched barcodes? From the scanner's performance parameters, to the barcode's material, to the compatibility of the environment, we'll teach you how to choose a barcode and scanner that are compatible with each other, so that you can avoid barcode-reading failures caused by hardware incompatibility and improve work efficiency.

6 Tips to Prolong the Life of Your Laser Engraving Machine

In this article, we will share six practical tips for increasing the lifespan of your laser marking machine optics.The course covers everything from daily cleaning to environmental control, including techniques for preventing dust build-up, controlling temperature, and following operating procedures. It is aimed at operators and maintenance personnel who use the equipment for extended periods.

What to Do When a QR Code Turns Black

The problem of blackening that occurs after the application of a QR code is often caused by the material characteristics or improper process parameters.The company's engineers can analyze the causes of black spots on QR codes, share material pre-treatment methods, and offer tips on adjusting laser marking parameters, all of which help users improve the clarity of their markings.By following these tips, you can easily solve the problem of blackening.

A Guide to Laser Power Settings

Provides a comparison of the golden power parameters for laser processing of different materials, including metal, wood, and acrylic.By using scientific settings for laser power, it is possible to raise processing efficiency and avoid material damage. The book solves problems in operation caused by inappropriate parameters, such as charring and cutting too deeply. It is suitable for quick reference by laser equipment users and operators.

From 20 % to 99 %: How We Improved Car Parts QR Code Recognition Rates

The article presents a real-life case study of how to boost the QR code recognition rate of automotive parts from 20 % to 99 %, covering three areas--hardware upgrades, algorithm optimization, and process adjustments--to solve the common problems of QR code dirt, glare, and blurring. It is suitable for reference by production management and technical teams.

Medical Equipment Laser Marking: Clarity and Sterility

In the production of medical instruments, laser marking must meet the hard standard of clear labeling, as well as strict requirements for asepsis.From the standpoint of practical applications, this article discusses how to choose the right laser device, optimize parameter settings, and verify the sterility of the process.

QR Codes on Metal Surfaces: Three Steps to Solving Readability Problems

The reflective surface of metal can cause QR code scanners to fail. Here are three simple steps for improving the readability of QR codes on metal surfaces by optimizing the material, adjusting the contrast, and controlling the angle of the light.It can be used in industrial equipment or tool management, and solves the problem of scanning codes easily.

A Guide to Buying a Laser Marking Machine: The Five Key Parameters That Affect the Accuracy of a QR Code

When choosing a laser marking machine, one of the key requirements is the ability to create QR codes with sufficient precision.The article analyzes the five key parameters that influence the quality of QR codes produced by laser marking: laser wavelength, laser power, galvanometer speed, software compatibility, and the cooling system. This helps users quickly identify high-precision equipment, avoiding costly mistakes.