The manager is satisfied with the net profit of green laser pointer

The manager is satisfied with the net profit of  green laser pointer .
Laser welding the weld and heat affected zone is narrow, deep penetration, heating, cooling speed, suitable for welding of heat-sensitive ultra-fine grain steel. The use of smaller laser power and welding speed with a slower, can be reduced crude crystalline hardening tendency. Of 3mm thick SS400 steel should be used 2.1KW power, 1m/min welding speed welding. Depth of 1.6mm thick rolled steel, in order to reduce the width of softening zone should be used 2KW power, 2.5m/min welding speed welding. Ultra-fine grain steel laser welded joint toughness coarse grain structure next to the main 3mm thick bainitic steel SS400 toughness of coarse grained region can achieve the same level with the base material. Finishing temperature higher SS400 steel laser welded joints without softening zone, the joint strength is higher than the base metal. Depth of the rolled steel laser welded joints appear recrystallization softening zone, when the softened area is narrow, does not affect the overall joint strength. Depth of SS400 steel and rolled steel laser welded joints have good bending ductility. Laser cutting technology is widely used in metal and non-metallic materials, processing, can significantly reduce processing time, reduce processing costs, improve quality of the workpiece. Pulsed laser for metal materials, continuous laser for non-metallic materials, which is an important application of laser cutting technology field. The laser has become one of modern fantasy pursuit of "cut iron drunk" and "sword." The net profit of  green laser pointer  is actually enough for this company of  green laser pointer .
Laser beam focused to a small spot can be less than the minimum diameter of 0.1mm), the focal point to achieve high power density can exceed 106W/cm2). Then the input beam (from light energy conversion) is far more than the heat reflective material, conduction or diffusion part, the material quickly heated to vaporization humidity, evaporation to form holes. As the beam moves with the material is relatively linear, so that holes form a continuous narrow width (such as 0.1mm or so) of the kerf. Trimming the heat-affected is very small, basically no deformation of the workpiece. Cutting process by cutting with added auxiliary materials for the gas phase. When starting a steel cutting oxygen as auxiliary gas and molten metal oxide materials, chemical reactions produce heat, while helping to get rid of the slotted within the slag. Cutting a class of polypropylene plastic with compressed air, cotton, paper, flammable materials, cutting the use of inert gas. Auxiliary gas into the nozzle can cooling focusing lens, to prevent dust contamination into the lens, the lens inside the seat and cause overheating of the lens. The net profit of  green laser pointer  has been discussed in the meeting.