laser pointer processing uses laser energy to modify the shape or appearance of materials. This material modification method has many advantages, such as the ability to quickly change the design, produce products without copying them, and improve the quality of finished products.
Another advantage of laser material processing is its compatibility with multiple materials. Compatible materials range from non-metals (such as ceramics, composites, plastics/polymers and adhesives) to metals (including aluminum, iron, stainless steel, and titanium).
Here, I would like to introduce and recommend the method of laser engraverengraving using fiber laser engraving and marking machine. Whether it is thin stainless steel, thin aluminum, thin iron, thin copper or thin silver, it can be engraved by fiber laser marking engraving machine. Through the control and operation of computer software, we can easily control the depth of engraving characters or patterns on the thin metal plate.
Choosing the right metal blue laser pointeretching machine must first understand the differences between the most common laser engraving machines. Carbon dioxide lasers are useful for etching wood, acrylic and other organics, but they are usually not strong enough to laser etch metals. Fiber lasers are an excellent choice for cutting, marking and etching metal products. Nd: YAG laser is one of the most common high-power lasers used in industrial metal marking projects.
All laser marking methods have one thing in common: the laser beam is pulsed, releasing sudden bursts of energy at specific intervals. Within 1 second, a 100W pulsed laser can release 100,000 pulses. Each pulse contains 1 millijoule of energy and can reach 10,000W of peak power.Since laser etching a metal requires less energy per area than engraving it, pulses are more distant from one another, as shown below.
When the beam hits the surface, the material absorbs its energy, converting it into heat. While the material surface reflects most of the beam’s energy, it also absorbs and converts part of that energy into heat. For laser etching to occur, the material must absorb just enough energy to melt its micro surface and make it expand.
When the beam’s energy is transformed into heat, the temperature of the material increases. At such a high heat, the surface becomes malleable, allowing its shape to change.
Etching is generally better than engraving unless you need high resistance to abrasion. If you still can’t decide which is best for you, we’ve prepared an article to help you choose between etching and engraving. Or you can ask a laser expert.