I-Beam End Geometry Stabilization for Precision Welding
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Solution Overview
Problem
Structural I-beams often experience transverse cross-sectional deformation during the rolling or fabrication process, leading to angularity issues that complicate precision installation in building frame structures, as the flanges become misaligned relative to the central web, posing challenges for close-tolerance assembly.
Innovation Solution
The method involves configuring and locking the beam end's transverse footprint using an external structure to correct any deformation, creating a matching male and female cross-sectional interface, and then welding the beam end to a mounting component, ensuring the beam's correct orientation and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional rolling or fabrication process is used for I-beam production, then manufacturing efficiency is improved, but transverse cross-sectional deformation occurs causing angularity issues
Solution Approach 1:
The patent applies preliminary action by preparing the beam end with a precisely machined interface surface and positioning features before the welding operation. The mounting component is pre-positioned with alignment features that ensure correct angular relationship with the beam's cross-section, addressing potential deformation issues before they affect the final assembly precision
Solution Approach 2:
The mounting component serves as an intermediary element between the beam and column connection. It includes a precisely machined interface that mates with the beam end, providing a stable reference surface that compensates for cross-sectional deformation. The intermediary component absorbs the dimensional variations and ensures precise angular alignment in the final assembly
2Device complexity
If beam end is welded directly without stabilization, then welding process is simplified, but cross-sectional footprint distortion occurs during welding
Solution Approach 1:
The beam end is pre-prepared with a stabilized interface surface through machining or forming operations before welding. This preliminary action creates a dimensionally stable surface that resists distortion during the welding process, ensuring precise alignment is maintained throughout welding
Solution Approach 2:
The patent changes the physical state or properties of the beam end interface by applying preheat treatment or creating a specific surface geometry that increases thermal mass and dimensional stability. This parameter change reduces the beam end's susceptibility to thermal distortion during welding, maintaining footprint stability
3Manufacturing precision
If precision alignment is achieved through complex positioning, then manufacturing precision is improved, but installation time increases
Solution Approach 1:
Alignment features such as machined surfaces, positioning pins, or keyed interfaces are incorporated into the mounting component during manufacturing. These preliminary alignment features ensure that when the beam is installed, precise angular alignment with the column is achieved automatically without requiring complex field positioning or adjustment operations
Solution Approach 2:
The mounting component includes a replicated or mirrored interface geometry that matches the beam's cross-sectional shape. This copying approach creates a complementary fitting surface that naturally guides the beam into the correct angular position, eliminating the need for complex alignment procedures during installation
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 approach effectively stabilizes the beam's cross-sectional footprint, preventing further distortion during welding and enabling precise attachment of I-beams to columns in precision building frames, facilitating reliable and automatic robotic welding processes.
Implementation Method 1
configurationally correcting and capturing the end transverse footprint of such a beam with an external structure to lock that footprint against subsequent configuration change
Implementation Method 2
weld-attaching that end transverse footprint to a beam-end mounting component
Data Source
AI summary
A method for stabilizing, in correctness, the transverse cross section of the end of an elongate structural beam during weld attachment to that end of a beam-end mounting component. This method includes the steps of (a) configurationally correcting and capturing the end transverse footprint of such a beam with an external structure to lock that footprint against subsequent configuration change, and (b), while performing that capturing step, weld-attaching the beam's end transverse footprint to the mentioned beam-end mounting component.