Automatic Welding Output Range Control for Stable Weld Settings

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Solution Overview

Problem

Traditional welding devices require skilled operators to manually adjust voltage and wire feed speed settings, which can lead to insufficient arcing and poor weld quality, especially when operators lack experience, and the independent control of these parameters complicates achieving desired welding parameters.

Innovation Solution

The implementation of systems and methods for intuitive or automatic control of welding parameter output ranges, allowing for configurable and default settings with upper and lower limits for welding parameters, calculated based on selected range tolerances, enabling operators to easily set and maintain optimal welding conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If operators manually adjust voltage and wire feed speed settings, then welding parameter control flexibility is improved, but welding quality consistency deteriorates when operators lack experience

Engineering Contradiction:
Improvewelding parameter control flexibilityVSAvoidwelding quality consistency
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The welding system automatically determines optimal voltage and wire feed speed settings based on selected wire electrode type and welding conditions, eliminating the need for manual operator adjustment. The controller self-regulates parameters within calculated ranges to ensure consistent weld quality regardless of operator skill level

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system dynamically adjusts voltage and wire feed speed parameters within automatically calculated optimal ranges based on the selected wire electrode specifications and welding conditions. The controller modifies these parameters in real-time to maintain welding quality consistency

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If voltage and wire feed speed are independently controlled, then parameter adjustment flexibility is improved, but achieving desired welding parameters becomes more complex

Engineering Contradiction:
Improveparameter adjustment flexibilityVSAvoidcontrol system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system combines voltage and wire feed speed controls into a unified automatic control mechanism. The controller simultaneously determines both parameters based on wire electrode type and welding conditions, reducing the complexity of achieving coordinated parameter settings while maintaining the flexibility to adjust each parameter within its optimal range

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If fixed welding parameters are used, then operation simplicity is improved, but adaptability to different wire electrodes and welding conditions deteriorates

Engineering Contradiction:
Improveoperation simplicityVSAvoidadaptability to different wire electrodes
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The system transitions from fixed welding parameters to dynamic parameter ranges that automatically adapt to different wire electrode types and welding conditions. The controller calculates optimal voltage and wire feed speed ranges based on selected parameters, providing both operational simplicity and adaptability through automated parameter determination

Inventive Principle:
Principle #15Dynamics

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution simplifies the welding process by automatically setting and maintaining optimal welding parameters, reducing the risk of poor weld quality and allowing novice operators to achieve consistent results, while also providing customizable settings for different welding applications.

Implementation Method 1

A common metal welding technique employs the heat generated by electrical arcing to transition a work piece to a molten state

Methodology Applied
Scientific EffectElectrical arcing: Electric Arc

Data Source

PatentEP3808495A1Systems and methods for automatic control of welding parameter output ranges
Publication Date: 2021.04.21 ILLINOIS TOOL WORKS INC
  • EP3808495A1 patent drawingFigure 1A
  • EP3808495A1 patent drawingFigure 1B
  • EP3808495A1 patent drawingFigure 1C

AI summary

Disclosed example power supplies, user interfaces, and methods are provided for intuitive or automatic control of welding parameter output ranges. The disclosed systems and methods provide tools for setup of configurable and/or default settings for a welding power source (102) and/or wire feeder (104). Weld settings include upper and lower limits for an operating range corresponding to one or more welding parameters, such that a welding parameter value is bound by the upper and lower limits during a welding operation. In some examples, the operating range, and the corresponding upper and lower limits, are calculated or determined based on a selected range tolerance.