Welding condition generating method in flat position welding

A welding condition generating method for determining welding conditions for welding in a single V groove, a single bevel groove, or a fillet groove in a flat position using a welding robot, the welding condition generating method comprising:

• preparing a condition A and a condition B, each including a plurality of different parameters used in calculation for determining the welding conditions;
• and
• generating the welding conditions by combining at least one of the parameters included in the condition A with at least one of the parameters included in the condition B,
• wherein the condition A includes at least one of a type of joint and groove shape, and geometrical parameters of a workpiece to be subjected to welding and a groove corresponding to the type;
• the condition B includes parameters related to welding specifications;
• for the first layer of welding, a welding current and a welding voltage are determined as the welding conditions;
• for the second and subsequent layers of welding, a current value obtained by changing the welding current for the first layer by a predetermined amount, or within a predetermined range of amounts, is determined as a common current;
• and
• a welding speed is determined such that the following two conditions are satisfied:
• V(maximum speed)≥V2>. . . >Vn≥V(minimum speed),
• and
• V(i)−V(i+1)≥V(i+1)−V(i+2)(i =i0, . . .:
• i0is 1 or 2), where n and i are layer numbers.