Laser Marking Machines for Marking Coated Materials|Laser Marking of Plated Metal

The book provides a detailed explanation of the technology used in laser marking, including parameter settings, the principles behind stripping off the coating, and common materials processing methods.The company also provides different laser removal techniques for different materials (such as nickel, zinc and chromium) used in electronic components, metal products and other applications. This helps operators avoid damage to the base material, allowing them to achieve a balance between precision marking and separation of the coating.

Laser marking technology is being used more and more widely in the processing of plated materials, but how to achieve precise layer removal remains a thorny problem.This article examines the mechanisms of interaction between laser beams of different power densities and the materials being coated.By controlling the pulse width (10-200ns) and repetition frequency (20-100kHz) of the laser beam, it is possible to remove the metal layer at a resolution of a few microns.For example, using a 532-nm green laser at a peak power of 150 W, 0.8-1.2 μm of nickel plating can be removed per pulse, while the underlying stainless steel substrate remains intact.

Three major issues must be considered in practical operation. The first is the absorption spectrum of the material used for the plating. For example, gold plating absorbs less than 30 % of 1064-nm infrared laser light, so UV lasers must be used. The second is layer thickness control, which can be accomplished in real time with a CCD visual positioning system.For multilayer coatings, such as a sandwich of copper-nickel-gold, a wavelength-switching technique is recommended for processing each layer, and a gas shield is used to prevent oxidation.

One connector manufacturer, for instance, increased its pass rate from 83 % to 97 % and improved its processing efficiency by 40 % after adopting the technology.The article also provides a special section on troubleshooting six common problems, including burrs and residual plating, and includes a parameter comparison table for the reference of technicians.

Comparison of Laser Etching and Traditional Etching

The laser engraving process differs from traditional etching in terms of cost, efficiency, and the range of materials it can be used on.By comparing the costs of equipment, materials, and production efficiency, it helps companies select the best production method for their needs.

Three Minutes to Understand the Process of Removing Multilayer Coatings

Want to quickly master the core techniques for removing multiple layers of plating? In just three minutes we'll take you through the practical steps, common techniques, and precautions to be aware of, including chemical dissolution and mechanical grinding. This is suitable for those in the industrial maintenance and precision machining fields who want to get to grips with the subject quickly.

Laser Marking of Coated Materials: How to Avoid Burning

The coating materials used in the process tend to burn easily when subjected to the heat of the laser beam, which can adversely affect the quality of the marking.From three angles--parameter settings, material characteristics, and process optimization--he shared how to avoid scorching by adjusting key parameters such as laser power, frequency, and speed, and by combining these with techniques for processing the surface of the material.

Laser processing: Avoiding damage to the substrate

If you want to avoid damaging the substrate during laser processing, you have to pay attention to three things: parameter setting, material pre-treatment, and energy control.Sharing practical techniques such as laser power regulation, focus positioning, and the application of protective coatings, this course will help you improve processing accuracy and reduce material waste. It is suitable for use with a variety of materials, including metal and plastics.

Laser Removal of Nickel / Zinc / Chromium Plating

By comparing the laser removal of nickel, zinc, and chromium, three common metal coatings, the authors analyze the differences in laser parameters, removal efficiency, and surface damage, providing a reference for selecting coating removal technologies for use in industry.The company's data on key parameters such as laser power and scanning speed help its clients optimize their production processes.

Selecting the Proper Laser Parameters for Layered Marking

The key is to match the laser parameters accurately.The book covers three key areas: material characteristics, power adjustment, and speed control. It shows readers how to adjust laser parameters according to the material being used, such as metal or plastic, to achieve both efficiency and precision, while also solving common problems such as uneven depth and blurred details.

Solutions to Common Problems in the Removal of Coatings

The book covers a wide range of practical techniques for dealing with the problems encountered in the process of removing plating material, including chemical, mechanical, and electrolytic methods.The company provides detailed operating instructions to help users avoid mistakes and efficiently remove plating layers from different materials.

Five Practical Tips for Laser Marking Metal Plated Surfaces

When laser marking machines are used to mark metal coatings, how can the base material be protected while still producing a clear mark? Here are five practical tips, covering parameter adjustment, pre-processing of the coating, and layer marking, which can help you solve problems of blurred or peeling marks, and improve processing efficiency and product quality.