Welding Power Supply Interface With Real-Time Bead Profile Feedback

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Solution Overview

Problem

Welding operators face challenges in setting optimal welding parameters, leading to poor weld quality and inefficiency due to the need for manual calculation or trial-and-error methods, especially for less experienced operators, which results in reduced productivity and increased material costs.

Innovation Solution

A user interface with a graphical display that dynamically shows the effects of adjustments to the welding profile, using a microprocessor-controlled welding power supply to provide real-time feedback and visualization of the arc and weld bead profile, allowing operators to make informed adjustments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If operators manually calculate or use trial-and-error methods to set welding parameters, then device complexity is reduced, but manufacturing precision and reliability deteriorate due to poor weld quality and operator error

Engineering Contradiction:
Improveparameter setting processVSAvoidweld quality
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The system provides real-time visual feedback through a graphical display showing the welding arc and bead profile, allowing operators to see the immediate effects of parameter adjustments and make informed decisions to achieve consistent weld quality

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The welding power supply automatically calculates and displays optimal parameter settings based on input materials and joint configuration, enabling the system to guide itself and the operator without requiring extensive external expertise or manual calculation

Inventive Principle:
Principle #25Self-service

2Device complexity

If operators manually calculate or use trial-and-error methods to set welding parameters, then device complexity is reduced, but productivity deteriorates due to lost time and reduced efficiency

Engineering Contradiction:
Improveparameter setting processVSAvoidwelding efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The system pre-calculates and displays optimal welding parameters before the actual welding process begins, allowing operators to review and adjust settings in advance, thereby eliminating time-consuming trial-and-error during production

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

Real-time visual feedback on the graphical display enables operators to quickly assess parameter effects and make rapid adjustments, significantly reducing the time needed to achieve acceptable weld quality

Inventive Principle:
Principle #23Feedback

3Device complexity

If operators manually calculate or use trial-and-error methods to set welding parameters, then device complexity is reduced, but loss of information deteriorates as operators cannot understand the relationship between parameter changes and welding outcomes

Engineering Contradiction:
Improveparameter setting processVSAvoidunderstanding of parameter effects
Core Design Contradiction:
Device complexityVSLoss of information

Solution Approach 1:

The graphical display provides continuous visual feedback showing how changes in welding parameters affect the arc characteristics and bead profile, enabling operators to understand and predict the outcomes of parameter adjustments

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system uses visual representations including color-coded displays to illustrate the effects of parameter changes on the welding arc and bead, making complex relationships intuitive and easy to understand for operators

Inventive Principle:
Principle #32Color changes

Data Source

PatentEP2203270B2Method of operating a welding power supply
Publication Date: 2021.09.15 LINCOLN GLOBAL INC
  • EP2203270B2 patent drawingFigure 1
  • EP2203270B2 patent drawingFigure 2
  • EP2203270B2 patent drawingFigure 3

AI summary

A welding power supply (3) includes a user interface (57) that allows the operator to adjust one or more welding parameters comprising a welding sequence for a welding process. The user interface (57) may include a display (60), which may be a graphical display depicting the welding sequence and the one or more welding parameters. The user interface (57) may further dynamically depict a pictograph (88), icon or other graphical image showing how changes to the one or more welding parameters will affect the welding process, which in an exemplary manner may be the welding bead profile and/or the welding arc profile.