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Interrupting pulse welding method

A technology of pulse welding and welding conditions, applied in welding equipment, arc welding equipment, manufacturing tools, etc., can solve problems such as poor appearance, and achieve the effect of improving appearance and simplifying settings

Active Publication Date: 2014-07-23
DAIHEN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at this time, there is a problem that the appearance is not good because scales are not formed on the portion subjected to normal arc welding.

Method used

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Embodiment approach 1

[0056] Hereinafter, embodiments of the invention will be described based on examples with reference to the drawings.

[0057] figure 1 It is a block diagram of the intermittent pulse welding apparatus 1 to which the intermittent pulse welding method of this invention is applied. In this figure, with the prior art Figure 9 The difference lies in the robot controller RC and the indicator plate TP. also, Figure 9 The manipulator M, the welding power source WP, the welding wire spool 56, the gas tank 58, and the like described above are not shown and omitted. Hereinafter, the robot controller RC and the indicator panel TP constituting the main parts of the present invention will be described.

[0058] The robot control device RC is a device for controlling the welding operation of the manipulator M, and includes: a main control unit 3 serving as its center; a welding condition output control unit 13 in charge of welding control; The operation control unit 11 that outputs the...

Embodiment approach 2

[0087] Next, Embodiment 2 of the present invention will be described. In Embodiment 2, by inputting the constant welding current and the constant welding voltage into the welding condition database that has previously stored the correspondence between the welding condition reference value and the number of initial formations and stored the welding time for each number of scale formations, Automatically calculate initial formation numbers and initial welding conditions.

[0088] Figure 4 This is an intermittent pulse welding device according to Embodiment 2 of the present invention. In this figure, the same as that of Embodiment 1 figure 1 The difference lies in the welding condition database 24 provided in the hard disk 4 and the welding condition calculation unit 23 provided in the main control unit 3 . Hereinafter, the welding condition database 24 and the welding condition calculation part 23 are demonstrated. Since other parts are related to figure 1 Parts assigned...

Embodiment approach 3

[0097] Next, Embodiment 3 of the present invention will be described. In Embodiment 3, the initial value is automatically calculated by inputting the scale diameter value equivalent to the weld bead width into the welding condition database in which the relationship between the scale diameter value and the constant welding current value and the constant welding voltage value is stored in advance. Number of formations, initial welding conditions, and constant welding conditions.

[0098] Figure 6 This is an intermittent pulse welding device according to Embodiment 3 of the present invention. In this figure, the same as that of Embodiment 1 figure 1 The difference lies in the scale diameter value Sr stored in the hard disk 4 and the welding condition database 24 , and the welding condition calculation unit 23 provided in the main control unit 3 . Hereinafter, these will be described, and since the other parts are the same as those in Embodiment 1, description thereof will b...

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Abstract

The present invention provides a squitter pulse welding method for realizing holding constant welding seam, and improving appearance. The squitter pulse welding method, according to welding condition including welding current, welding voltage and welding time, generating electric arc in state of stopping welding torch from an electric arc start point, stopping the electric arc after the welding time, then repeating the above to generate the electric arc again from the start point with the electric arc of the welding torch moved away in the welding direction from set distance space. In the squitter pulse welding method, initial welding time (Ti) is periodically shorten at same time of welding before the scalelike forming number reach preset initial forming number (Un), welding are carried out with constant welding time (Tt) after the scalelike forming number reach preset initial forming number (Un). Therefore, welding width deficiency near the electric arc can be prevented.

Description

technical field [0001] The present invention relates to an intermittent (stitch) pulse welding method for performing welding and suppressing the influence of heat on a base material of a thin plate to a minimum. Background technique [0002] Intermittent pulse welding is a welding method that minimizes the thermal influence on the base metal of the thin plate by controlling the heating and cooling during welding. It is a welding method aimed at the automation of thin plate welding, and can improve the appearance of welding and reduce the amount of welding deformation compared with conventional thin plate welding (for example, refer to Patent Document 1). [0003] Patent Document 1 discloses a method in which an arc is generated for a predetermined time to melt a base material while the torch is stopped, and when the set time elapses, the arc is stopped and the torch is moved to melt The arc restart point on the outer peripheral side. Hereinafter, this prior art will be des...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/09
Inventor 广田周吾上园敏郎中津川勇二
Owner DAIHEN CORP
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