Magnetic Arc Alignment With Curved Pole Shoes for Lower Welding Current
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Solution Overview
Problem
Existing arc welding devices require high operating currents to achieve significant arc deflection, leading to inefficient energy use and material stress.
Innovation Solution
A straightening apparatus with curved pole pieces and focused magnetic coils, allowing for increased magnetic field strength and efficient arc deflection with reduced energy consumption, featuring pole pieces with angled legs and individually controlled magnetic coils for precise arc alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If high operating current is used to achieve significant arc deflection, then arc deflection is improved, but energy efficiency deteriorates
Solution Approach 1:
The pole pieces are designed with curved surfaces and specific geometric configurations (including angled legs at defined angles) to concentrate and focus the magnetic field precisely where needed for arc deflection. This local optimization of magnetic field distribution increases deflection efficiency without requiring proportional increases in overall energy input.
Solution Approach 2:
The invention changes the geometric parameters of the pole pieces (curvature radius, leg angles, spacing) to optimize magnetic field generation. By adjusting these parameters, the system achieves stronger arc deflection at lower operating currents, directly resolving the contradiction between deflection strength and energy consumption.
2Force
If high operating current is used to achieve significant arc deflection, then arc deflection is improved, but material stress increases
Solution Approach 1:
The curved pole pieces with optimized geometry concentrate the magnetic field locally at critical points, achieving effective arc deflection without requiring high overall current levels. This reduces the thermal and electromagnetic stress on the coil windings and pole piece materials.
Solution Approach 2:
By optimizing the geometric parameters of the pole pieces (curvature, angles, dimensions), the system achieves the required magnetic field strength with lower operating currents, thereby reducing material stress and thermal loading on the components.
3Device complexity
If conventional straightening device is used, then device simplicity is maintained, but magnetic field strength is insufficient
Solution Approach 1:
The pole pieces incorporate curved surfaces with specific radius of curvature and angled legs positioned at defined angles relative to each other. This localized geometric optimization focuses the magnetic field effectively, achieving high magnetic field strength without adding complex auxiliary systems or multiple components.
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
The apparatus achieves a 30-60% increase in magnetic field strength, enabling more efficient arc deflection with lower operating currents, reducing heating and allowing for more complex welding paths without the need for water cooling, thus optimizing energy use and device miniaturization.
Implementation Method 1
one or more magnetic coils for forming a magnetic field for deflecting an arc generated by an arc welding device in the opening
Implementation Method 2
at least two curved pole pieces comprising at least two legs for focusing the magnetic field. The slightly stronger bending of the pole piece compared to the state of the art has the surprising effect of increasing the magnetic field strength by at least 30%, but in particular by as much as 40-60%
Implementation Method 3
Since an arc has its own magnetic field, it responds to a magnetic field. Therefore, it is possible to deflect and align the arc using an external magnetic field.
Data Source
Figure 1~2
Figure 3
Figure 4~8
AI summary
The invention relates to a directing apparatus (103) for orienting an arc of an arc welding device (101) for arc welding, in particular for TIG welding, using a magnetically moved arc, comprising: i) a retaining device (120) having an opening (104) for receiving a welding head (102) of the arc welding device (101); ii) one or more solenoid coils (2) for forming a magnetic field for deflecting an arc generated by a welding device (101) in the opening (104); and iii) at least two bent pole shoes (5) comprising at least two legs (8, 9) for focusing the magnetic field, a first of the legs (8) of each pole shoe (5) being fastened to the retaining device (120) and/or to the solenoid coil (2) and a second of the legs (9) being oriented at an angle (α) of less than 130° to the first leg (8).