Torch Synergic Welding Control for Variable Heat Input
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Solution Overview
Problem
Conventional welding power supplies struggle to adjust output power effectively during welding operations, particularly when dealing with workpieces of varying thickness and geometry, leading to issues like burn-through and lack of fusion.
Innovation Solution
A welding power supply system that allows for synergic control of output power by simultaneously adjusting voltage and wire feed speed using a manually accessible control on the torch, enabling operators to change deposition modes on-the-fly to match changing workpiece conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional welding power supplies use fixed preselected voltage and wire feed speed settings, then the welding parameters are simple to set up, but the system cannot adapt to workpieces of varying thickness and geometry, leading to burn-through or lack of fusion
Solution Approach 1:
The patent implements dynamic control of welding parameters by allowing real-time adjustment of voltage and wire feed speed during the welding operation. The power supply transitions from fixed preselected settings to dynamically adjustable parameters, enabling adaptation to varying workpiece thickness and geometry while maintaining controlled system complexity through coordinated parameter changes.
Solution Approach 2:
The system changes physical parameters (voltage and wire feed speed) during operation to adapt to different welding conditions. By modifying these parameters in real-time based on workpiece characteristics, the system achieves versatility without requiring complete system redesign, thus managing complexity while improving adaptability.
2Adaptability or versatility
If the welding power supply allows wide range adjustment of voltage and wire feed speed, then the system can adapt to different workpiece conditions, but the control becomes more complex and difficult to operate
Solution Approach 1:
The patent combines control of voltage and wire feed speed into a unified synergic control system. Instead of requiring separate adjustment of multiple parameters, the system links them so that adjusting one parameter automatically coordinates the other, maintaining ease of operation while achieving wide adaptability range for different workpiece conditions.
Solution Approach 2:
The control system dynamically adjusts parameters during operation rather than requiring manual pre-setting. This dynamic adaptation simplifies operation by automatically responding to welding conditions while maintaining the ability to cover a wide range of voltage and wire feed speed settings for versatile application.
3Productivity
If preselected welding parameters are used for uniform workpieces, then the welding process is simple and efficient, but the system fails when workpiece thickness or geometry varies, causing quality issues
Solution Approach 1:
The system maintains high productivity for uniform workpieces through efficient parameter control while adding dynamic adjustment capability to handle varying thickness and geometry. This ensures weld quality consistency across different workpiece types without significantly reducing welding efficiency, resolving the contradiction between speed and reliability.
Solution Approach 2:
The patent enables parameter changes during welding operations to maintain quality consistency. By allowing voltage and wire feed speed adjustments based on actual workpiece conditions, the system ensures reliable weld quality whether working on uniform or varying geometry pieces, while preserving productivity through streamlined control mechanisms.
Data Source
AI summary
Methods and apparatus to synergically control a welding-type output during a welding-type operation are disclosed. An example welding-type power supply includes a power conversion circuit configured to convert input power to welding-type power and to output the welding-type power to a welding-type torch; a communication circuit configured to receive a control signal from a remote control device during a welding-type operation; and a control circuit configured to synergically control a voltage of the welding-type power and a wire feed speed based on the control signal.