Mobile phone, keyboard, water cup, parts, computer, switch, lipstick, MP3 player, ceramics, silicon chip and steel plate, etc.. Whether in metal, plastic or other materials, laser marking can make for a long list of components. It goes without saying that laser marking is a very widely used marking process. Today, laser marking has been applied to all walks of life in the production of consumer goods and industrial products.
Some metals appear colored when heated. The color depends largely on the temperature to which it is heated. The laser beam hits the part of the workpiece that needs marking, and heats it to a certain temperature to produce colored marks.
Plastic laser marking
The laser heats the plastic surface locally by emitting a laser beam, which discolors the plastic in the heated part. What happens in the workpiece depends on the composition of the plastic.
To turn the dark plastic white, the laser beam partially melts the workpiece. Foam is formed when small bubbles in the melt increase the volume of the plastic. Small bubbles diffuse the laser beam. As a result, the treated area looks much brighter than the surrounding material. In some cases, the mark clearly protrudes from the surface. They call them bubble marks.
Metal laser marking
Almost all metals can be laser-marked.
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