For the realisation of automatic submerged-arc welding with the numerical control, investigations were carried out to develop a prototype of automatic equipment with the numerical programme control of the type Mir-03p. The welding technology is used for the process of one-sided welding with two-sided weld formation on a flat-copper backing cushion of flat panels with a thickness of up to 20 mm, length up to 10 m. The extensive functional possibilities of the manipulation system of the robotic-technological systems for arc welding (RTSAW) and the programme-controlled welding equipment make it possible to control the welding process and greatly widen the range of application of automatic welding. The solution of the following tasks is required: selection of the methods of arc welding for RTSAW; the selection of the spatial position of the welded joints; selection of the methods and technological means of reliable arc ignition and high-quality welding up of craters; the optimisation of the welding conditions; the selection of welding techniques in different spatial positions. To carry out welding the RTSAW requires a programme which would describe the trajectory of movement of the manipulation system and the technological parameters of the welding conditions. The programme of movement of the elements of the robotic technological complex has the form of a list of operators, with each operator specifying the type of treated element of the trajectory and the explicit or implicit determination of the coordinate of the reference points. To carry out robotised arc welding with a consumable electrode in a shielding gas on steel ship structures, prototypes of welding robots LUCH-01 and RM-01 have been developed, and the range of ship structures whose welding is technically possible using welding robots, has been determined. Since the cost of proposed technologies is very high, the efficiency of application in production is determined on the basis of economic calculations.
Automation of consumable electrode arc welding ship structures
Welding International ; 17 , 10 ; 801-807
2003
7 Seiten, 1 Tabelle, 5 Quellen
Article (Journal)
English
abschmelzende Elektrode , Adaptivregelung , Algorithmus , automatische Steuerung , Bewegungssteuerung , einseitiges Schweißen , Kosten , Kupfer , mathematische Transformation , numerische Steuerung , Optimierung , Prototyp , Schiffbau , Schiffbaustahl , Schutzgas , Schweißausrüstung , Schweißbedingung , Schweißbrenner , Schweißkonstruktion , Schweißroboter , Unterpulverschweißen
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