Friction Weld Vibration Control via Sensor Feedback
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Solution Overview
Problem
Friction welding systems experience vibration during the welding process, which diverts energy and can cause damage to workpieces and tooling, leading to increased costs and complexity due to the need for expensive and unreliable damping equipment.
Innovation Solution
A friction welding system that includes a sensor to measure parameters such as fluid pressure, temperature, or acoustic responses to determine the amount of vibration, allowing for real-time adjustment of the force application to prevent excessive vibration, thereby reducing energy diversion and potential damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If damping equipment is added to reduce vibration, then vibration damage is reduced, but system cost and complexity increase
Solution Approach 1:
The control system performs preliminary action by predicting future vibration levels based on measured process parameters (torque, speed, pressure) and adjusts the welding process parameters in advance to prevent excessive vibration before it occurs, rather than adding damping equipment to react to vibration after it occurs
Solution Approach 2:
The patent replaces the mechanical damping equipment with a control system that uses sensors to measure process parameters and a controller to adjust welding parameters, substituting a mechanical vibration reduction approach with a measurement-and-control approach
2Manufacturing precision
If vibration monitoring and control is implemented, then weld quality improves, but measurement and control complexity increases
Solution Approach 1:
The control system uses feedback by continuously measuring welding parameters (torque, speed, pressure) with sensors and using these measurements to adjust process parameters in real-time, creating a closed-loop control system that maintains weld quality without requiring direct vibration measurement
Solution Approach 2:
The patent uses process parameters (torque, speed, pressure) as intermediaries to indirectly monitor and control vibration, rather than directly measuring vibration. These intermediaries correlate with vibration levels and allow control without direct vibration measurement complexity
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 solution reduces the need for expensive damping equipment, improves weld quality, and enhances process control, resulting in greater efficiency and cost savings by minimizing workpiece and tooling damage.
Implementation Method 1
a sensor to measure process parameters (such as fluid pressure, temperature, acoustic responses)
Implementation Method 2
a welding arrangement configured to impart kinetic friction between at least one surface of a first workpiece and at least one surface of a second workpiece to form a weld
Data Source
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AI summary
The present application relates to a friction welding system (100) and method including a welding arrangement (107) configured to impart kinetic friction between at least one surface of a first workpiece and at least one surface of a second workpiece to form a weld, a force providing mechanism (100) arranged and disposed for applying a force to one or both of the first workpiece and the second workpiece, and a sensor arranged (102) and disposed to measure a parameter of the welding arrangement (107), wherein an amount of vibration is determinable from the measured parameter.