TIG Welding System Workpiece Characteristic Configuration

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Solution Overview

Problem

Configuring a TIG welding system is complex and requires extensive knowledge of operational parameters such as current, voltage, and polarity, making it inaccessible to operators without high training and experience.

Innovation Solution

A TIG welding system with a user interface that translates workpiece characteristics, such as material type and thickness, into operational parameters, allowing operators to configure the system without needing to understand technical parameters like current, voltage, or frequency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If traditional TIG welding configuration methods are used, then welding precision and control are maintained, but operator complexity and training requirements increase significantly

Engineering Contradiction:
Improvewelding precisionVSAvoidconfiguration complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent introduces an intermediary computing device that acts as a mediator between the operator and the TIG welding system. This computing device receives workpiece characteristics from the operator, determines the appropriate operational parameters through processing, and communicates them to the welding power supply. This intermediary layer shields the operator from the complexity of direct parameter configuration while maintaining precise welding control through automated parameter determination.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If traditional TIG welding configuration methods are used, then welding process control is maintained, but ease of operation deteriorates due to extensive knowledge requirements

Engineering Contradiction:
Improveprocess controlVSAvoidease of configuration
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system implements self-service by enabling the computing device to automatically determine operational parameters based on workpiece characteristics provided by the operator. The welding power supply then uses these determined parameters to control the welding process autonomously. This self-service mechanism allows operators with minimal training to achieve reliable process control, as the system performs the complex parameter selection and adjustment functions automatically.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If automated parameter determination is implemented, then ease of operation improves, but device complexity increases due to additional computing components

Engineering Contradiction:
Improveease of configurationVSAvoidsystem complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent segments the TIG welding system into distinct functional components: the welding power supply, the computing device, and the user interface. The computing device is further segmented into separate functional modules including workpiece characteristic reception, parameter determination, and communication interfaces. This segmentation allows the automated parameter determination functionality to be added as a separate module rather than integrating it into the core welding power supply, thereby improving ease of operation while managing overall system complexity through modular architecture.

Inventive Principle:
Principle #1Segmentation

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

Enables untrained operators to effectively configure and operate a TIG welding system by simplifying the process through the use of workpiece characteristics, reducing the complexity and expertise required for TIG welding.

Implementation Method 1

a power input configured to receive an input power and deliver the input power to the enclosure for power conversion

Methodology Applied
Scientific EffectPower conversion:

Implementation Method 2

At appropriate voltage and current, a welding arc is created between the electrode and a workpiece to be welded

Methodology Applied
Scientific EffectWelding arc: Electric Arc

Data Source

PatentUS9174295B2System and method for configuring a TIG welding system using workpiece characteristics
Publication Date: 2015.11.03 ILLINOIS TOOL WORKS INC
  • US9174295B2 patent drawing
  • US9174295B2 patent drawing
  • US9174295B2 patent drawing

AI summary

A system and method for configuring a tungsten inert gas (TIG) welding system includes a user interface to receive characteristics of the workpiece to select operational parameters for the TIG welding process. The characteristics of the workpiece may include workpiece composition or workpiece thickness. Workpiece material is translated to an output welding-type power that is alternating current (AC) power or direct current (DC) power. Workpiece thickness is translated to a specific output amperage. The operator does not need to have knowledge of operational parameters of the TIG welding system and can configured the system using workpiece characteristics.