Laser Insulation Peeling Dual-Scan Method
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Solution Overview
Problem
The existing methods for peeling insulation films from conducting wires using laser light are inefficient, leading to prolonged operation times and potential degradation of insulation performance due to excessive heating and carbonization.
Innovation Solution
The proposed method involves a dual-scanning approach, where a rectilinear scan is performed in the first region followed by a unidirectional scan in the second region, with the laser light moving from one side to the other and back in the first region, and only from one side to the other in the second region, to control heat application and maintain insulation integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a unidirectional scan method is used for laser radiation, then the insulation film can be peeled, but the operation time becomes long due to laser head returning for each radiation
Solution Approach 1:
The patent implements continuous laser radiation during both forward and backward scans by eliminating the return movement of the laser head. The laser beam is continuously radiated onto the insulation film while the workpiece moves, allowing peeling to occur during both forward and backward passes, thereby continuously performing useful action and significantly reducing operation time.
Solution Approach 2:
The patent inverts the conventional scanning approach by making the laser head stationary and moving the workpiece instead. This inversion allows the laser to continuously irradiate the insulation film during both forward and backward movements of the workpiece, converting the previously idle return time into productive peeling time.
2Productivity
If laser light is continuously radiated for long time to peel insulation film, then peeling can be achieved, but excessive heating occurs causing carbonization and insulation performance degradation
Solution Approach 1:
The patent implements periodic action by alternating between forward scan (peeling) and backward scan (cooling) phases. During the forward scan, laser radiation peels the insulation film; during the backward scan, the laser is turned off allowing the workpiece to cool down. This periodic on-off cycling prevents continuous heating and carbonization while maintaining efficient peeling.
Solution Approach 2:
The patent applies preliminary anti-action by introducing cooling periods between heating phases. The backward scan without laser radiation serves as a preliminary cooling action that prevents the workpiece from reaching temperatures that would cause carbonization and insulation degradation, counteracting the harmful thermal accumulation before it occurs.
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 method significantly reduces the operation time for peeling the insulation film while ensuring the insulation performance is maintained by optimizing heat application and minimizing excessive heating.
Implementation Method 1
radiation of laser light has been used to peel the insulation film
Implementation Method 2
radiation position of the laser light moves from one side toward the other side
Implementation Method 3
a part of the insulation film desired to remain for an insulation function may be excessively heated and carbonized
Data Source
AI summary
An insulation film peeling method which radiates laser light onto a front end portion of an insulation film-coated conducting wire including a conducting wire and an insulation film in a longitudinal direction, and which peels a part of the insulation film up to a peeling boundary of a predetermined regulated peeling length, includes performing a rectilinear scan of a first region, in which a radiation position of the laser light moves from one side toward the other side and then moves from the other side toward the one side upon reaching the other side, and performing a unidirectional scan of a second region, in which the radiation of the laser light is performed from one side toward the other side and then the radiation position returns to the one side in a state in which the radiation of the laser light stops upon reaching the other side.