Laser marking machines|Parameters and depth control for laser marking on coated metals

The study focuses on the laser marking of metal surfaces with rust-proof coatings, and examines the techniques for setting core parameters such as power, speed and frequency. The study also explores how to precisely control the depth of the marking layer to avoid damaging the rust-proofing properties.The book provides practical guidance for metal processing through the use of case studies to illustrate the effects of parameter adjustments on the clarity of markings, the integrity of coatings, and the effectiveness of corrosion prevention.

In the field of metal surface processing, there are special technical challenges when laser marking is applied to materials with anti-corrosion coatings.The laser parameters and process control must meet two standards: ensuring the clarity and durability of the marking while maintaining the integrity of the rustproof coating.After conducting a large number of experiments, it was discovered that when using a fiber laser with a wavelength of 1064 nm, a combination of power output of 25-45 watts and a scanning speed of 800-1200 mm / s could achieve an ideal depth of 0.05-0.15 mm while avoiding carbonization of the coating.

Deep focus requires a careful balance of the position of the focal point and the amount of defocusing.By shifting the focus down 0.3 to 0.5 mm, the heat-affected area can be effectively dispersed, and by adjusting the pulse frequency to be between 40 and 60 kHz, the risk of delamination can be significantly reduced.When using different rustproof coatings, such as zinc or epoxy resin, it is recommended that one first perform a surface energy test, and adjust the laser energy density according to the wettability.For example, epoxy coatings work best at 0.8-1.2 joules per square centimeter, while zinc coatings work best at below 1.5 joules per square centimeter.

The verification stage recommends using a three-dimensional contour meter to measure the cross-section, and at the same time using a salt spray test to confirm corrosion resistance.In practice, a car parts manufacturer has successfully reduced the oxidation rate of stainless steel parts from 12 % to less than 3 % by increasing the frequency of the Q switch from 20kHz to 35kHz.These practical experiences show that the combination of fine-tuning parameters and process monitoring is the key to achieving a balance between high-quality laser marking and long-term rust resistance.

A Quick Reference Guide to Common Problems in Laser Parameter Adjustment

It offers solutions to the most common problems in laser parameter tuning, including power fluctuations, beam path deviations, and frequency errors.It includes daily maintenance techniques, suggestions for selecting calibration tools, and logic for optimizing parameters. This will help operators quickly identify the root of a problem and minimize downtime.

Comparing the Differences between Zinc and Epoxy Coatings

There are significant differences between zinc-based and epoxy coatings in industrial marking.The company compares and analyzes the strengths and weaknesses of the two materials from the perspectives of material characteristics, marking effects, cost, and applicable scenarios, helping users select the appropriate coating solution based on their actual needs.

The Impact of Laser Maintenance on Marking Quality

The book also explains the critical impact of daily maintenance of laser equipment on the quality of the mark, and shares practical tips on how to improve the clarity of the mark.They know how to use standards to avoid problems such as blurred markings and broken lines, which can extend the life of their equipment and ensure stable production.

Laser Marking Technology in the Automotive Industry

This article examines an actual case study from the automotive parts industry to illustrate how an upgrade to laser marking can improve efficiency and reduce costs.The book covers the core advantages of laser technology, the problems facing the automotive parts industry, and the practical effects of upgrading production techniques, helping manufacturers quickly understand the value of technological evolution.

Laser parameters for different rust-prevention coatings

The company has compiled a table of laser parameters for different types of anti-rust coatings, covering common coating types and key parameters such as laser power, frequency and scanning speed.By comparing specific data, it helps users quickly match the best processing method, improving the effectiveness and efficiency of rust prevention. It is a reference for technicians in the fields of metal processing and equipment maintenance.

Laser processing without damaging the protective coating: These dents must be avoided

In order to help users avoid damaging their products ’ protective coating in the laser processing process, the book covers key issues such as parameter adjustment, equipment selection and testing verification, to help users effectively protect the protective layer and increase the quality of processing.

Metal Marking: Controlling Depth

This course covers practical techniques for controlling the depth of laser marking on metal, including laser parameter adjustment, methods for measuring layer depth, and solutions to common problems.This practical guide helps operators control the depth of the marking more precisely, thereby increasing processing quality and efficiency. It is suitable for reference by technical personnel in the metal processing industry.

Five Key Points in Optimizing Laser Marking Parameters for Corrosion-Resistant Metals

Summarizing the five most important points in optimizing metal laser marking parameters, including the setting of critical parameters such as laser power, marking speed, and frequency control, helps users resolve problems such as unclear markings and oxidation, and improve the clarity and durability of the markings on the metal surface.