5 operational aspects Through the digital interface, a local area network can be formed between the welder, the wire feeder and the welding torch, so that the wire feeder and the welding gun have the functions of displaying and adjusting the welding parameters, as shown in FIG. Even during the welding process, the welding current can be directly increased or decreased without stopping or returning to the panel for adjustment. The function is especially suitable for working in long distances, at high altitudes or in containers. Droplet transition status indication. The indicator lights when the set welding parameters or the poor form of droplet transfer occurs during the welding process. At this point, the welder can adjust the welding parameters in time until the indicator light is off. Through software upgrades, the welder can expand a variety of welding methods: MIG/MAG spot welding, TIG welding, manual arc welding; solid wire and flux cored wire can be used. In addition, there is excellent MIG brazing performance for welding galvanized sheets, stainless steel sheets and the like. In addition, the pulsating energy output makes the heat distribution easy to control, so it is easy to weld the aluminum parts with different thicknesses, which reduces the requirements for the worker's operating level. Previous page
LEDER technology's strip light is a functional and multi-purpose standard strip family that incorporates premium performance and construction durability. The performance and application versatility of this series of strip light can be increased by incorporating symmetrical or asymmetrical reflectors.
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The panel (Figure 6) is intelligently designed. In addition to the unification adjustment knob, other such as wire diameter selection, welding method selection, welding material selection, etc., all adopt the touch button design, which not only facilitates the welder operation, but also does not affect the welder's visual experience and reduces misoperation.
80 sets of welding expert parameters for memory. In operation, the welding wire diameter, material, and base material thickness can be input into the welder to obtain the optimal welding parameters of the memory. And the shielding gas matched by each welding material is provided on the welding machine. 
6 software upgrade
The all-digital welder can be upgraded to maintain advanced process performance through software upgrades. The welding machine is loaded with special welding procedures through a laptop to meet special welding materials or welding processes. It saves users the cost and time of a large number of equipment updates and process trials (Figure 8). 
7 welding aluminum expert TPS2700-ALU EDITION
In order to make the effect of all-digital MIG welding machine aluminum welding more perfect, FRONIUS has further optimized the software. In early 2000, it launched the "welding aluminum expert" - TPS2700-ALU EDITION. The biggest difference between this model and the original TPS all-digital welder is the addition of a low-frequency coordinated pulse control with a synergistic pulse frequency of up to 5 Hz. Synchronous pulsation of the output energy and the wire feeding speed during welding can obtain a very uniform and beautiful fish scale weld. The operator can arbitrarily set the density of the weld corrugation, which is very suitable for products with special requirements on the appearance of the weld, such as bicycles, scooters, etc. (Fig. 9). 
8 Conclusion
The all-digital welding machine is a new direction in the development of welding equipment. It uses a new digital information technology, completely controlled by software to control the output characteristics of the welder, breaking through the traditional constant current, constant voltage power supply, with high control accuracy, extremely sensitive arc control, optimized melting Drop transitions and a wide range of application flexibility. It can weld a variety of common metals, especially hard-to-weld materials such as aluminum and copper.