Grooved Metal Beam Reinforcement Using Solid-State Welded Rods
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Solution Overview
Problem
Existing methods for reinforcing structural members often increase weight and cost due to the addition of reinforcement materials, which can be expensive and inefficient.
Innovation Solution
A method involving forming grooves in a structural member, inserting reinforcement rods, and fusing them using solid-state welding techniques like friction stir welding, without melting the materials, to enhance strength and ductility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If reinforcement materials are added to structural members, then strength and ductility are improved, but weight and cost increase
Solution Approach 1:
The patent applies local quality by embedding reinforcement rods only in specific grooves at critical stress locations (flanges and web) rather than uniformly throughout the entire beam. This localized reinforcement approach provides strength enhancement where needed while minimizing additional weight compared to full-beam reinforcement.
Solution Approach 2:
The patent creates a composite structural member by combining the base metal beam with embedded reinforcement rods of different materials (e.g., aluminum beam with steel or titanium rods). This composite approach leverages the high strength-to-weight ratio of the reinforcement materials to improve overall beam strength while keeping weight increase minimal.
2Strength
If reinforcement materials are added to structural members, then strength and ductility are improved, but cost increases
Solution Approach 1:
By concentrating reinforcement only in grooves at high-stress areas rather than throughout the entire beam, the patent minimizes the quantity of expensive reinforcement materials needed while achieving the required strength enhancement, thus reducing overall cost.
Solution Approach 2:
The patent applies partial action by using reinforcement rods that fill only a portion of the available groove volume, providing sufficient strength enhancement without the excessive material usage that would occur with complete groove filling or full-beam reinforcement.
3Reliability
If solid-state welding is used to fuse rods to beam, then material melting is avoided, but manufacturing complexity increases
Solution Approach 1:
The patent replaces thermal welding processes (which would melt the beam material) with solid-state welding mechanisms such as friction stir welding or ultrasonic welding. These mechanical processes fuse the reinforcement rods to the beam without melting, avoiding the complexity of controlling melting and solidification while maintaining reliable joints.
Solution Approach 2:
The groove structure serves as an intermediary that facilitates the solid-state welding process by providing a confined space for the reinforcement rods, enabling better contact and heat distribution during friction stir welding, thus simplifying the manufacturing process while ensuring reliable fusion.
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 method results in lighter, stronger structural members with reduced material costs and improved manufacturing efficiency, allowing for easier handling and installation.
Implementation Method 1
embedding each rod in the beam using friction stir welding
Implementation Method 2
embedding each rod in the beam by solid-state welding the beam, rod and cap together
Data Source
AI summary
A method for reinforcing structural members, including forming a beam of a first metal, the beam including one or more grooves along a surface of the beam; placing a rod of a second metal in each of the one or more grooves along the surface of the beam; and fusing each rod to the beam without melting the first metal.