Sensor-Controlled Joining Furnace for Consistent Diffusion Bonding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The diffusion bonding process for metals is challenging due to variations in material properties and microstructural characteristics, leading to inconsistent joining results, and requires extensive training and monitoring, limiting its industrial adoption.
Innovation Solution
An automatic high-temperature joining furnace with a controlled pressing device and sensor system that adjusts pressing force and temperature based on real-time process parameters, ensuring consistent deformation and improved material contact for robust joining.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standard literature values for surface pressure are used, then the process is simple to operate, but the joining results are inconsistent and not repeatable
Solution Approach 1:
The patent implements automatic monitoring of pressing force, temperature, and time parameters during the diffusion bonding process. Sensors detect actual process conditions and feed this information back to a control system that adjusts parameters in real-time to maintain consistency, eliminating the need for manual operator judgment and ensuring repeatable results.
Solution Approach 2:
The system performs self-regulation by automatically adjusting pressing force and temperature based on pre-programmed parameters and real-time sensor feedback. The process monitors and corrects itself without requiring skilled operators to intervene, making the complex process easy to operate while maintaining high reliability.
2Reliability
If a specially trained person monitors the joining process, then the joining quality is improved, but the number of parallel processes is limited and productivity is reduced
Solution Approach 1:
The diffusion bonding system performs self-monitoring and self-adjustment through integrated sensors and automated control. The system independently manages pressing force, temperature, and timing parameters without requiring skilled operators, enabling multiple processes to run in parallel while maintaining high joining quality.
Solution Approach 2:
The patent replaces manual monitoring and adjustment by skilled operators with an automated electronic control system. Sensors, actuators, and control algorithms substitute for human expertise, allowing the system to maintain high joining quality while enabling parallel processing to increase productivity.
3Strength
If pressing force is applied to improve material contact, then the joining strength is improved, but workpieces with cooling channels or bores experience different deformation compared to solid bodies
Solution Approach 1:
The patent applies pressing force selectively based on the specific geometry and material properties of each workpiece. The system adjusts local pressing parameters according to the presence of cooling channels, bores, or other features, ensuring optimal contact pressure in critical areas while preventing excessive deformation in sensitive regions.
Solution Approach 2:
The pressing force is dynamically adjusted during the diffusion bonding process based on real-time feedback from sensors. The system modifies pressing parameters in response to detected workpiece deformation, maintaining optimal contact pressure for strong joints while preventing damage to workpieces with complex geometries.
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 system achieves consistent high-quality diffusion bonding across different materials by precisely controlling the pressing force and temperature, reducing the need for manual intervention and expertise, thereby enhancing the reliability and efficiency of the joining process.
Implementation Method 1
The heating device (14) is designed to heat the interior of the furnace and the workpiece to the processing temperature
Implementation Method 2
The heating device (14) is designed to heat the interior of the furnace and the workpiece to the processing temperature
Implementation Method 3
When force is applied to the workpiece or batch by a press, the material contact on the joining surfaces is improved, for example by reducing the surface roughness
Implementation Method 4
In a diffusion bonding process, a workpiece or a batch is deformed in a controlled manner... inherent interdiffusion can be produced or induced
Data Source
AI summary
An automatic high-temperature joining furnace is configured for diffusion welding materials to be joined, such as metals and metal workpieces. It comprises a heating chamber with a heating device, a workpiece receptacle arranged in the heating chamber for receiving a workpiece to be worked in the joining furnace, a pressing device arranged and designed to exert a pressing force on the workpiece, a sensor device for generating at least one sensor signal, and a control device designed for controlling at least the pressing device in response to the at least one sensor signal.