Laser Welding Condition Setting for Joint Shape Optimization
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Solution Overview
Problem
Conventional laser welding devices set machining conditions based solely on material and board thickness, failing to account for the shape of the joint, which results in suboptimal welding conditions.
Innovation Solution
A laser welding device with a welding condition calculation section that considers the joint shape, material, and laser information to determine optimal welding conditions, including welding speed, laser power, and pattern, to ensure effective heat input and joint integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If laser machining conditions are set based only on material and board thickness, then the setting process is simple, but the welding conditions are suboptimal for different joint shapes
Solution Approach 1:
The patent segments the welding condition setting process by dividing joint shapes into distinct categories (e.g., butt joint, lap joint, T joint, corner joint). Each joint shape type has its own dedicated setting screen with specific parameters optimized for that geometry. This segmentation allows the system to provide simple, targeted settings for each joint type while maintaining overall comprehensiveness, resolving the contradiction between simplicity and optimality.
2Ease of operation
If conventional interactive NC device is used, then operator experience is not required, but joint shape is not considered in condition setting
Solution Approach 1:
The patent implements preliminary action by pre-configuring multiple joint shape setting screens with optimized parameters for different joint geometries. Before the actual welding operation, the operator selects the appropriate joint shape type, and the system automatically retrieves the pre-prepared optimal settings for that specific joint type. This eliminates the need for operator experience while ensuring adaptability to various joint shapes, as all necessary configurations are prepared in advance.
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 the setting of optimal welding conditions for various joint shapes, reducing operator experience requirements and minimizing waste by providing precise welding parameters, thus improving weld quality and efficiency.
Implementation Method 1
welding a workpiece by laser light
Data Source
Figure 1
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Figure 3A~3D
AI summary
A method for determining a laser welding condition of the present disclosure includes a first step, a second step, and a third step. In the first step, workpiece information indicating characteristics of a workpiece is input. In the second step, laser information indicating characteristics of laser light is input. In the third step, a first welding condition is calculated based on the workpiece information and the laser information, and then displayed. The first welding condition is any one of a recommended laser power of the laser light, a recommended welding speed, a recommended welding pattern, an estimated strength of a welded portion, and an estimated weld depth of the welded portion. Furthermore, the workpiece information includes a joint shape of the workpiece. Thus, an optimum weld condition can be set while considering a shape of a joint in welding.