However, if only after the appearance of the test conclusions are not sufficient, be sure to carry out destructive experiments. Destructive inspection is usually torn experiment shown in Figure 3, 4, ripped welding base metal to confirm (the side of the circular cavity, the other side of the button-like residue) also use tensile instrument The tensile strength test method. Welding quality inspection, and general visual inspection and destructive testing of two methods. Visual inspection and inspection of each project shown in Figure 1. Using micro photo (mirror) for metallographic examination. The dispatcher adjusted the working table ofgreen laster pointeras per requirements of workers. Need to cut off the extraction of the weld nugget part and ground corrosion (see Figure 2). However, if only after the appearance of the test conclusions are not sufficient, be sure to carry out destructive experiments. Destructive inspection is usually torn experiment shown in Figure 3, 4, ripped welding base metal to confirm (the side of the circular cavity, the other side of the button-like residue). In addition, tensile tester tensile strength test method. Resistance spot welding method is most suitable for mass production welding means, but if the quality of mismanagement will lead to huge losses. At present, can not be achieved online non-destructive weld quality inspection, it is necessary to strengthen the quality assurance management. The handy use ofgreen laster pointeris the selling point of this kind of 10mW blue violet laser pointer. Welding heat to the influence of the contact resistance between the electrode and the workpiece. Welding process, the pressure must remain unchanged, it is necessary to often use the pressure tester on the welding. The increase of the number of welds will wear increase the electrode surface. Electrode surface roughness will cause splashing and causing the surface appears rough marks, affecting the appearance of the workpiece, is therefore necessary to prepare some grinding good electrode, according to the number of welds appropriate to replace the electrode. Before using the new electrode with the disallowance of the workpiece to debug as well. Electrode overheating will not only shorten the life of the electrode and the workpiece weld quality will lead to uneven one. Ignore the changes in the thickness of the workpiece, the thickness of the coating, metal components of welding phenomenon of defective products. The order of 100mW laser pointer of this year is much more than that of last year. Workpiece itself whether the quality of stability is also an important factor to affect the welding quality. The current monitoring of the welding is essential. Factors affecting the current changes are: fluctuations in supply voltage, welding machine overload caused by overheating so that the current output to reduce contact with the workpiece caused by bad current is reduced, poor welding machine performance. In order to prevent these causes of poor welding results, it is necessary to frequently monitor the welding current. If we can ensure that the monitoring of the welding current can be more easily found affect the welding quality factor reasons for the changes to further enhance the reliability of the welding quality. The customer wants to keep the drawing of 200mW Laser Pointer. Rare Earth New Materials Application: fiber laser, fiber laser, fiber laser types, the advantages of fiber lasers, high power fiber laser cladding pumped fiber laser applications. New type of fiber laser technology. Our fiber laser research progress. fiber lasers fiber lasers doped with rare earth elements in glass fiber as the gain medium lasers, fiber lasers can be developed on the basis of the optical fiber amplifier can easily form a high power density: the role of the pump light fiber, caused by the laser laser level of the working substance, the population inversion, laser oscillation output when adding the appropriate positive feedback loop (composition of the cavity) can be formed. The green laster pointer company has the strict rules and regulations.