Welding database with multi-level structure for multi-layer and multi-pass manual welding and Digital welding system with the database

摘要

The present invention specializes in multi-layer multi-pass welding in a 5-step structure deposition method and has a double current structure reflecting the output characteristics of a constant voltage welding machine to develop standard welding conditions that can improve welding quality and productivity in multi-pass welding. It relates to a multi-stage structure welding database for multi-layer multi-pass manual welding and a digital welding system having the same, which can compensate for the output characteristics according to the CTWD of a constant voltage welding machine, The welding database for multi-layer multi-pass manual welding is a welding database for forming a welding part of a multi-stage structure, wherein the welding part is formed by a low current so as to protrude to the lower part of the welding base material, and the lowest first root end formed by a low current, and by a high current The filling end is formed to fill the space between the welding base materials, and it is formed by medium current, covers and reinforces the upper surface of the first root end, and serves as a bridge between the low current of the first root end and the high current of the filling end. A second root end that compensates for the deterioration of the physical properties of the root end, an even end and an upper side of the welding base material that covers the upper surface of the filled end so that the upper surface is flat and suppresses the expansion of the improvement width occurring near the surface of the filled end. It has a five-stage structure of capping ends that are formed on top of the even ends so as to protrude; It is deposited in the order of the first root stage, the second root stage, the filling stage, the leveling stage, and the capping stage, and the current/voltage value of the path of each stage is expressed in specific numerical values, In addition, the multi-stage structure welding database for multi-layer multi-pass manual welding is characterized in that it is composed of a group of welding condition data according to welding posture, joint shape, wire grade/diameter, and base material thickness, A digital welding system includes: a main body including a digital communication PCB and a control panel for utilizing a multi-step structure welding database for multi-layer multi-pass manual welding; a digital wire feeder having a multi-step structure welding database for multi-layer multi-pass manual welding, a control panel, and supplying a welding wire while performing digital communication with a main body connected by a single cable; It is characterized in that it includes a manual torch that receives welding current and welding voltage from the body and uses the wire supplied through a digital wire feeder equipped with an encoder motor capable of constant speed control to weld the welding base material.