- Persistence to the TIG welding method which is in low productivity and high cost is because there is not the firm belief on the quality of the replaceable MIG welding
- Although it is claimed that it is possible to secure the quality from the MIG welding method through purchasing the expensive foreign equipment, it is impossible to have the test operation to suit to the matching site condition.
- Quality dissatisfaction from the work stop and the generation of the spatter due to the wire distortion phenomenon and the occurrence of the tip melting during the MIG welding

- Securing more excellent welding quality than the MIG welding by the implementation of spray and realization of the spatter zero
- Built-in of the wave control algorithm digital in accordance with the using current band & the base material and the noise prevention design
- Interfacing is possible through the automatic & robot welding power source (software upgrade possible for CPU built-in).

- Main body: 100% of the arc start success rate, built-in of the current wave control technology for the reduction of the spatter, hot start function for AL welding, and the built-in of the pulse function

- Feeding device & torch: Feeding characteristic and workability are important because the wire has the soft property (to prevent the distortion phenomenon & the tip melting).
The first plan: The feeding device with the clutch method, teflon liner built-in type torch
The second plan: The feeding device with the general method, the push pull torch (foreign made)

- In the MIG welding, the welding quality is decided by the weldability of the welding machine itself, the feeding device, and the feeding characteristic of the torch.

- Main body: A product to pursue those advantages of the AC & DC TIG by combining periodically the DC wave into the AC output wave
- Application: AC TIG → General AL, AC/DC combined TIG → Thick AL plate welding

- Select either the MIG welding machine or the TIG welding machine considering the welding quality and the productivity
- For the MIG welding equipments, there are difference of the welding quality in accordance with the availability of the current wave design technology and its completeness.
- Although the MIG welding main body is important, the feeding device and the torch shall be selected by taking into account the feeding characteristic and the workability.
- Advantage of the inverter control method is that the output current is constant and 1/2 ~ 1/3 of the electric charges can be saved.

- The realization of product from the 5 technologies developed by the consortium of research, industry and education in accordance with the industrial technology development policy project of the Government.
- Acquisition of the NT & NEP of the Ministry of commerce, industry and energy. Selected as the excellent product from the Public Procurement Service and also selected as the welding equipment of the national skill competition meeting.