Computer information-and-measuring system for investigation of arc surfacing processes

Abstract

On the basis of portable computer and advanced software the information-and-measuring system was developed, which is intended to investigate the peculiarities and next automation of the arc surfacing processes. In the surfacing installation equipped with the developed computer information-and-measuring system (CIMS) it is possible to carry out experimental investigation of the influence of surfacing method, diameter or cross section of the used electrode material on its welding and technological characteristics and quality of the deposited beads and layers formation with a high degree of accuracy and reliability. CIMS with accumulation of databases on technologies of arc surfacing of different parts can serve as a basis for creation of systems of automatic control of arc surfacing processes. 3 Ref., 1 Table, 4 Figures. K e y w o r d s :Figure 3. Diagrams of F pu and F pvp functions depending on average values of current and voltage in open-arc surfacing using self-shielding flux-cored wire of 1.8 mm diameterFigure 4. Range of open-arc surfacing modes with flux-cored wire of 1.8 mm diameter, where the approximation error in arc voltage and current during surfacing does not exceed ±1 V and ±10 A, respectively

Influence of methods of arc surfacing with flux-cored wire on penetration of base metal and formation of deposited metal

“…The accumulation of databases on the modes of different methods of arc surfacing, geometric sizes of deposited beads, VBMD values and the value of penetration considering the previously developed expert systems on surfacing technologies [11,12] and the proposed computer system advisor for selection of technology for surfacing typical parts [13] can further serve as a basis for development of computer programs for robotized additive technologies of arc surfacing.…”

“…For surfacing the universal surfacing installation U-653 was used, completed with the pow-INDUSTRIAL er source VDU-506. The surfacing using flux-cored wires of different types and diameters was carried out on the plates of St.3 steel of 15 mm thickness in a wide range of modes: surfacing current I s was from 150 to 450 A; voltage U s was from 20 to 34 V. The record and control of electrical parameters of surfacing mode was performed using the developed computer information-measuring system [13]. The surfacing speed of 20 m/h in all the experiments remained constant, because in the range of 20-40 m/h at other unchanged parameters the surfacing speed almost does not affect the geometric sizes of deposited beads [9].…”