Pulse arc welding control method and pulse arc welding power supply
The pulsed arc welding control method addresses spatter issues in high-speed welding by switching to negative electrode polarity and reversing wire feed, improving weld quality and reducing spatter.
JP2026085967APending Publication Date: 2026-05-26DAIHEN CORP
View PDF 1 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- DAIHEN CORP
- Filing Date
- 2024-11-14
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
Conventional pulsed arc welding methods fail to adequately reduce spatter, particularly during high-speed welding, especially when using low-slag wires with less Si and Mn deoxidizing components, leading to poor weld quality due to multiple short circuits.
Method used
A pulsed arc welding control method that switches the electrode polarity to negative during the base period after a short circuit is released, and optionally reverses the welding wire feed direction, to control short-circuit current and suppress additional short circuits.
Benefits of technology
Reduces spatter generation and enhances weld quality by stabilizing the welding process, even during multiple short circuits, especially when using low-slag wires.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026085967000001_ABST
Abstract
To reduce spatter generation during high-speed welding in consumable electrode pulsed arc welding. [Solution] In a pulse arc welding control method in which a welding wire Fw is fed, a welding current Iw is applied with the electrode positive polarity, with the peak current during the peak period and the base current during the base period forming one pulse cycle, and when a short circuit occurs between the welding wire and the base material during the base period, a short-circuit current is applied to perform welding, the output polarity control is performed to switch to the electrode negative polarity for a part of the base period (times t2 to t21) or the entire base period (times t19 to t3) after the short circuit is released at time t19.
Need to check novelty before this filing date? Find Prior Art