Points to note in laser processing of rusty materials
The processing principle of the laser cutting machine is that the material absorbs the laser heat, melts or vaporizes and is blown away by the high-pressure gas to form a slit. The absorption of the laser by different materials or materials under different conditions is completely different. In the case of rusty or non-rusty material surfaces, heat absorption will also be greatly affected.
1. The efficiency of rust plate cutting will be reduced, the effect is relatively poor, and the scrap rate is high. Therefore, rusty plates should be avoided as much as possible, or the rusty plates should be treated before use.
2. Holes will burst during punching and cutting, which will pollute the lens. You can use a grinder to remove rust first. If the thickness of the sheet is less than 5mm, the effect will not be significant, but it will also cause the product to fail The qualification rate increased.
3. The cutting condition of uniformly rusted plates will be better than that of unevenly rusted plates. Because the uniformly rusted sheet absorbs the laser evenly, it can be cut well. For material processing with uneven rust on the surface, make the surface of the material more uniform before cutting.
What should I do after cutting the stainless steel material?
In the metal cutting process, stainless steel will produce rust after cutting. Users will worry about how to deal with this rust and whether it can be dealt with. In addition, the instantaneous force of the laser on the metal surface is as high as more than two thousand degrees of heat. The temperature near the metal melted by the heat also ranges from 1000 to 500 degrees. The metal in this area will oxidize and change color due to heat. Affected the effect of metal processing. So how should we deal with it?
1. After pickling, it needs to be rinsed and wiped thoroughly with clean water to avoid secondary pollution. You can use a manual polishing machine. A thin layer is easy to throw away.
2. The stainless steel that is oxidized and discolored at high temperature can be washed off with stainless steel whitening water, and the original white color of stainless steel can be restored by using whitening water.