At present, the welding methods used in stainless steel boxes there are many, are presented today the most widely used resistance welding process, and has wide application prospect of laser welding process. Also known as contact welding resistance welding is the most widely used manufacturing process of welding. Shown in Figure 2, the workpiece between two electrodes placed in pressure and welding current through the use of current through the resistance of the workpiece itself, the heat generated to heat the formation of partial melting, cooling off in the formed under pressure to a solid joint, such as resistance welding process. Thus, resistance welding has the following characteristics: the use of welding current through the resistance of the workpiece and the heat generated by the heating of the workpiece. Heat from the workpiece that is not outside, but internal heat source. The welding process is completed under pressure, that pressure must be applied. Without any increase in the weld filler material, but also without any protective agent. The general specification of cell phone jammer is included in the manual.
Welding speed and welding strength. One of the main advantages of laser welding is the welding speed it can reach 5m/min, while producing very little heat distortion, but also for the neighboring metal without mechanical distortion, and the welding of high strength, can greatly improve the body's strength and stiffness. With high flexibility. Welding and resistance welding can only be monotonous compared to almost all-powerful, laser welding can weld a continuous weld, intermittent weld seam can in fact be under the control of the computer along any trajectory of welding. However, laser welding technology, there are the following difficulties: the high tensile precision parts, components and welded to the fixture to be demanding, and the corresponding monitoring accuracy requirements are high, and a larger one-time investment. This production line can be divided into two laser cutting and laser welding unit, five-axis laser cutting unit for the three-dimensional laser cutting systems, including lasers, CNC machine tools, tooling and fixtures; laser welding unit for the robot laser welding workstation, including laser , robotics, welding fixtures.This kind of cell phone jammer has two models suitable to different locations.
Factors affecting the quality of laser cutting a lot, J Fieret and others have conducted in-depth research, summed up nearly 50 parameters. Include: laser power, cutting speed, assist gas and pressure. Therefore, this study selected these parameters influenced the orthogonal experiment, the cutting quality of the various parameters on the impact of the law. In the continuous mode laser cutting, laser cutting in order to improve the efficiency of commonly used oxygen as an auxiliary gas, and select the laser power, cutting speed, gas pressure, as three factors, the design of the four levels of the orthogonal three-factor test, the use of L12 (43) orthogonal table, where 3 is the factor number 4 is the level of each factor the number 12 is the number of tests, if you need to do a comprehensive test 4 * 4 * 4 = 64 tests, but only using the orthogonal 12 tests can be done.
No comments:
Post a Comment