Welder Control Using Unified Characteristic Curve Field
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Solution Overview
Problem
Current welding technologies require multiple characteristic curves for each welding application, which are often created by manufacturers and not user-friendly, leading to suboptimal results when welding parameters change, as they demand deep knowledge and incur additional costs for new curves.
Innovation Solution
A method that adjusts the working point based on two independent parameters, heat input and wire feed speed, allowing for the combination of multiple characteristic curves into a characteristic curve field, enabling precise adjustment of the filling ratio and heat input without requiring new curves, using a calculation method that keeps one parameter constant.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple characteristic curves are stored for different welding applications, then welding precision is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple characteristic curves into a single unified characteristic curve by using a two-dimensional parameter space where the abscissa represents wire feed speed and the ordinate represents heat input. This merging approach allows the welder to store and manage welding parameters more efficiently while maintaining the ability to achieve precise welding results across different applications.
Solution Approach 2:
The unified characteristic curve serves multiple welding applications simultaneously by allowing independent adjustment of heat input and wire feed speed. This universal curve can accommodate various welding conditions and material types, making the welder more versatile without requiring separate curves for each application.
2Manufacturing precision
If characteristic curves are created by manufacturers for each welding application, then welding precision is improved, but ease of operation deteriorates
Solution Approach 1:
The system enables users to independently adjust welding parameters by directly modifying heat input and wire feed speed on the unified characteristic curve. This self-service capability allows users to adapt welding parameters to their specific needs without requiring manufacturer-provided curves for each application, reducing the learning curve and improving ease of operation.
3Manufacturing precision
If new characteristic curves are created for changed welding applications, then welding precision is improved, but loss of time increases
Solution Approach 1:
The unified characteristic curve provides dynamic adaptability by allowing users to adjust welding parameters in real-time based on changing application requirements. Instead of creating static curves for each scenario, the system enables flexible parameter modification within the unified framework, saving time when welding applications change.
4Ease of operation
If welding parameters are adjusted along a single characteristic curve, then ease of operation is improved, but manufacturing precision deteriorates
Solution Approach 1:
The patent transitions from a single-dimension characteristic curve to a two-dimensional parameter space where the abscissa represents wire feed speed and the ordinate represents heat input. This dimensional expansion allows independent control of both parameters, enabling users to precisely adjust welding parameters in two directions simultaneously, thereby improving welding precision while maintaining ease of operation.
Data Source
AI summary
A method for controlling a welder including a fusible electrode stores the values of the welding parameters required for a welding process in a storage device and saves the values as so-called characteristic curves through at least one support point per characteristic curve. A working point is set by a value for the heat input into a workpiece and a value for the wire feed speed. Upon adjustment of any of the values to a welding application the other value is kept constant by a calculation method designed such that a plurality of characteristic curves that are compatible with one another are combined to form a characteristic curve field per welding process and the welding parameters of all support points of the characteristic curves of the characteristic curve field are saved according to defined values of specific welding parameters.