The group member should submit the weekly report of green laser pointer to the leader of technology group
In addition, the instrument is also used for tensile strength tensile test method. Although the resistance spot welding method is best suited for mass production of welding means, but if the quality of mismanagement can cause huge losses. Currently, the line can not be achieved non-destructive weld quality inspection, it is necessary to strengthen the quality assurance management. Welding heat by contact between the electrode and the workpiece great impact resistance. Welding process, the pressure must remain constant, it is necessary to stress tester often increase in the number of welding welding, the electrode surface wear will increase. Electrode surface roughness and cause splash marks caused by rough surface of the workpiece, the workpiece affect the appearance, it is necessary to prepare some more good ground electrode, according to the number of appropriate replacement of welding electrodes. Before using the new electrode with the workpiece void debug as well. Electrode overheating will not only shorten the life of the electrode and the workpiece welding quality will lead to heterogeneity. By ignoring the workpiece thickness, coating thickness, metal composition and other changes caused by defective products welding phenomenon have occurred. The group member should submit the weekly report of green laser pointer to the leader of technology group.
Laser welding is the use of the laser beam direction and the excellent high-power density characteristics of what work. Laser beam through the optical system will focus on a small area, in a very short period of time to be welded at the formation of a highly concentrated heat energy region, so that the welded material melts and forms a solid solder joints and welds. Commonly used in laser welding of two ways: continuous pulsed laser welding and laser welding. The former is mainly used for single-point and fixed continuous welding thin pieces of material. The latter is mainly used for big thick pieces of welding and cutting. It is easy to change the focal length and spot position of laser output. Is easy to carry to the automaton, the robot device. Insulation of the conductors with direct welding, a large performance difference between the dissimilar metals can be welded. Pulsed laser welding can be divided into the deep penetration of heat to melt solder and melt welding. The advantage of 100mW green laser pointer price will help the company win the order of green laser pointer .
Heat to melt solder is when the laser beam on the surface of the material, the material absorbs light energy and heating and melting. Surface layer of heat conduction to continue to pass deep to the material, until the two pieces to be welded contact miscible and welded together. Deep penetration welding is melting even when the laser beam power density to the material, the material is melted and even the gasification process, have a greater vapor pressure in the steam under pressure, to melt the metal pushed around the light at the (bath) showing a pit, with the continuation of the laser beam irradiation, pits deeper, and penetrate to another artifact. After stopping the laser irradiation, was excluded from the pits around the melting pit in the back flow of the metal re-solidification after welding together parts which are the mechanism of laser welding, and power density, exposure time, material properties, welding, etc. factors. The assembly process of 200mW green Laser Pointer is not complicated.
When the low power density, exposure time is longer and thinner when weldment, usually the main mechanism of heat transfer to melt. On the contrary, it is the main mechanism for deep-penetration melting. Welding quality inspection, generally visual inspection and destructive testing of two ways. Visual inspection is shown in Figure 1 of the items tested. If the use of microscopy (microscope) photographs metallographic examination, you need to cut off part of the nuclear extract and grinding weld corrosion (see Figure 2). However, if only after a visual inspection is not sufficient to conclude, be sure to look destructive experiments. Destructive testing is usually carried out ripped experiment shown in Figure 3,4, welding base metal tear confirm (round hole on one side, the other side of the button-like residues appear). For the factory gets much more orders of 50mW blue violet laser pointer , the factory needs more workers to accomplish all orders within the specified period.
related green laser pointer blog:
laser pointer pen