Instrumented Friction Stir Welding Tool for Real-Time Weld Control
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Solution Overview
Problem
Existing friction stir welding (FSW) technologies lack effective real-time monitoring and control mechanisms for pressure, temperature, and torque, leading to inefficiencies and inconsistencies in the welding process.
Innovation Solution
Integration of a friction stir welding tool with a head, tool holder, and body equipped with cooling fins, pressure, temperature, and torque sensors, along with a communication node for Bluetooth connectivity, enabling real-time data transmission to a computing device with a PID controller for precise process control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If real-time monitoring and control mechanisms are integrated into FSW tools, then manufacturing precision and reliability are improved, but device complexity increases
Solution Approach 1:
The patent integrates multiple sensors (pressure, temperature, torque) and a communication node within the existing FSW tool body structure. The sensors are positioned to measure parameters at critical locations without requiring external monitoring equipment, effectively nesting the monitoring system within the tool itself. This resolves the contradiction by achieving real-time monitoring capability while minimizing additional structural complexity.
Solution Approach 2:
The FSW tool is designed to perform multiple functions simultaneously: welding, heating, and real-time parameter monitoring. The tool body serves both as a structural component for welding and as a housing for sensors and communication devices. This multi-functionality approach improves manufacturing precision through monitoring while avoiding the need for separate dedicated monitoring equipment, thereby limiting the increase in device complexity.
2Measurement precision
If multiple sensors and communication nodes are integrated into the FSW tool, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple measurement functions (pressure, temperature, torque sensing) and communication capabilities into a single integrated tool body. Rather than using separate external devices for each measurement, the sensors and communication node are merged within the tool structure, allowing simultaneous multi-parameter monitoring with minimal additional components.
Solution Approach 2:
The communication node acts as an intermediary that collects data from multiple sensors and transmits it to external monitoring systems. This mediator approach allows precise multi-parameter measurement while simplifying the overall system architecture, as the node consolidates the communication interface for all sensors rather than requiring separate communication channels for each parameter.
3Temperature
If cooling fins are added to the FSW tool body, then temperature control is improved, but manufacturing complexity increases
Solution Approach 1:
The patent modifies the tool body's thermal parameters by adding cooling fins, which change the heat dissipation characteristics of the tool. The fins increase the surface area for heat transfer, allowing better temperature control during welding operations. This parameter change approach improves temperature management while using a straightforward geometric modification that maintains manufacturing simplicity.
Solution Approach 2:
The cooling fins segment the tool body's thermal management function into multiple heat dissipation surfaces. Rather than using a single complex cooling system, the fins divide the heat transfer function across multiple simple geometric elements, improving temperature control while maintaining ease of manufacture through standard fin configurations.
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
Enhances the accuracy and efficiency of FSW by allowing for real-time adjustments based on measured parameters, improving weld quality and consistency.
Implementation Method 1
The body may include a plurality of cooling fins
Implementation Method 2
The body may include a plurality of cooling fins
Implementation Method 3
Friction and pressure from the FSW tool may heat up the piece of metal such that the metal is plasticized
Implementation Method 4
measuring pressure on a head of a friction stir welding tool using a pressure sensor
Implementation Method 5
measuring temperature of a body of the friction stir welding tool
Implementation Method 6
measuring torque of the friction stir welding tool using a torque sensor
Data Source
AI summary
A friction stir welding (FSW) tool includes a head, a tool holder and a body between the head and the tool holder and attached to the head and the tool holder. The body may include a plurality of cooling fins. An interior of the body may include a pressure sensor, a temperature sensor, a torque sensor, and a communication node in electronic communication with the pressure sensor, the temperature sensor, and the torque sensor. The communication node may be in Bluetooth communication with a computing device.