The Laser Marking Process: A Comparison of Ceramic and Industrial Ceramics

By contrasting the core differences between laser marking technology for household ceramics and industrial ceramics, including material properties, equipment parameter adjustments, and practical application scenarios, we hope to help users select the appropriate technology based on their needs, thereby improving processing efficiency and product quality.Keywords: laser marking, processing of porcelain, industrial ceramics.

Why is there such a difference in craftsmanship?

We all know that laser engraving is widely used in the ceramics industry, but the processing requirements are completely different for everyday ceramics and industrial ceramics.One has to be beautiful and delicate, and the other has to be sturdy enough to withstand the abuse.These differences directly affect the process parameters, equipment choice and operating methods.

The characteristics of the material determine the results of the marking.

Density and composition.

Most tableware is fired from kaolin, which produces a fine surface, but is relatively soft. If the laser is applied with too much force, it can cause cracks.Industrial ceramics contain hard materials like alumina and silicon carbide, so you have to turn up the power to make a clear mark.

Hidden difficulties in glaze treatment.

Glazed bowls and plates look smooth, but the laser can easily cause the glaze to peel off.The solution was to use multiple low-power scans. The ceramics, which are used in their raw form, are actually easier to process in this way, but care must be taken to avoid dust contamination of the equipment.

How should equipment parameters be set?

The art of balancing power and speed.

When engraving designs on coffee mugs, if the power exceeds 20 watts, the machine will "flip out." But when marking numbers on industrial ceramics, 30 watts is the starting point.The speed must be changed as well: for daily use ceramics, medium to low speed is best for fine carving, but for industrial parts, high speed is possible.

The secret of focus and supplementary gas.

When engraving the fine details of a decorative teacup, a short focal length is used and an air assist is turned on to prevent scorching. When marking industrial ceramics, a long focal length is used in combination with nitrogen to ensure that the marks are deep and to prevent the ceramics from oxidizing.

A guide to avoiding pitfalls.

The battle to protect the beauty of everyday porcelain.

The dishes are not finished once they have been stamped with the trademark. They must pass a food safety check.It is recommended that you choose a fiber laser machine to avoid heavy metal contamination.After carving, wipe with a soft cloth to remove dust and prevent it from getting stuck in the design.

The "durability test" for industrial products.

The information must be able to withstand the effects of oil and high temperatures.After marking, the paint must be tested for adhesion--it must be able to withstand ten hard wipes with an alcohol-soaked cloth without fading.

In my personal experience, many firms suffer because they rely on a single set of parameters for everything.In fact, just half an hour of testing on scrap material before starting production could save a bundle in rework costs.Next time, before you start work, ask yourself: Where will the finished product be used? Is it to be placed on a dining table or installed in an engine? The answer will determine the approach you take!