Laser Cutting Process Detailed

Author: admin    NewsSource: Site author    Hits:     Updated: 8/10/2009

Laser beam focused into a small spot can be less than the minimum diameter of 0.1mm), so that the focus of the Agency to achieve high power density can exceed 106W/cm2). Input beam at this time (from solar energy conversion) was far greater than the heat reflective material, or the spread of conduction of heat to vaporize the material quickly humidity, evaporation of the formation of holes. With the beam and the relative linear movement of materials to make holes for the formation of a very narrow width (for example, about 0.1mm) of the kerf. Cut the heat-affected is very small, basically no workpiece deformation.

 

     Cutting process of cutting with the added material support for the gas phase. Steel cutting oxygen to use as an auxiliary gas and melting exothermic chemical reaction of metal oxide have a material, slotted at the same time to help get rid of the slag. Polypropylene plastic cutting the use of a class of compressed air, cotton, paper cutting the use of flammable materials inert gas. Auxiliary gas into the nozzle cooling focusing lens can prevent the dust pollution to enter the lens block with lens lens and lead to overheating.

 

     The majority of roll forming machine organic and inorganic can be used for laser cutting. Share in the industrial component manufacturing heavy metal processing industries, many metallic materials, no matter what its hardness, can be cut into shape without deformation (currently using the most advanced laser cutting system can cut the thickness of the steel industry has been close to 20mm). Of course, the high-reflectivity materials, such as gold, silver, copper and aluminum alloy, which is a good heat conductor, laser cutting is very difficult, therefore, can not even cut (some hard cutting materials can be used for pulse laser beam cutting, Due to extremely high pulse peak power, make the material absorption coefficient of the beam to increase sharply the moment).

 

     Laser cutting without burrs, folded, high precision, better than plasma cutting. For many mechanical and electrical manufacturing industry, the computer program as a result of the modernization of laser cutting system can make it easier for cutting of different shapes and size of the workpiece (the workpiece can also be modified drawings), which are often higher than the punching, molding process was preferred; despite its processing speed slower than the red mode, but it does not die consumption, no need to repair molds, but also the replacement of mold-saving time, and thus save processing costs, reduce product cost, so the whole economically more cost-effective.

 

     On the other hand, from how to make the mold design to adapt to workpiece size and shape of changes in point of view, laser cutting may also play its accuracy, reproducibility good advantage. Stacked die as a priority to create means of production as a result of mold does not need high-level workers, the cost of laser cutting operation is not expensive, it can significantly reduce the cost of die manufacturing. Laser cutting tool also brought the additional advantage of cutting-edge tool would have a shallow hardened layer (heat-affected zone), to improve wear resistance in the operation of the mold. Laser cutting of non-contact characteristics of circular saw blades for cutting non-stress the advantages brought about by forming, which improves service life.