Orbital Welding Apparatus for Piping Overlay Application
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Solution Overview
Problem
Conventional orbital welding equipment systems require re-positioning and re-wrapping of cables to apply weld overlays on both sides of piping systems, leading to inefficiencies and potential interference issues with complex geometries, making it difficult to apply weld overlays effectively.
Innovation Solution
An orbital welding apparatus with a mounting assembly using magnetic foot pads, a travel guide, and a head assembly with rotating weld heads and drive mechanisms, allowing for independent operation and remote monitoring, enabling weld overlays to be applied on both sides of piping systems without direct attachment, thus reducing setup constraints and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional orbital welding equipment uses single or double weld heads requiring re-positioning, then the equipment can apply weld overlay to piping, but the process requires re-wrapping cables and re-positioning equipment to apply welds on both sides, reducing productivity
Solution Approach 1:
The patent combines multiple weld heads (at least two) into a single integrated apparatus that can simultaneously or sequentially apply weld overlays to both sides of piping components. The mounting assembly with magnetic foot pads holds multiple weld heads in fixed positions around the piping, eliminating the need to re-position equipment and re-wrap cables between sides, thereby significantly improving productivity and reducing time loss.
2Productivity
If conventional equipment requires re-positioning for opposite side welding, then weld overlay can be applied to both sides, but the process becomes complex and time-consuming with multiple passes required
Solution Approach 1:
The patent segments the welding function into multiple independent weld heads mounted on a common mounting assembly. Each weld head is positioned to access different sides of the piping component. This segmentation allows simultaneous or sequential operation on multiple sides without requiring the entire equipment to be re-positioned, reducing the number of passes needed while maintaining manageable device complexity through modular design.
3Ease of operation
If magnetic foot pads are used for mounting, then the apparatus can be easily attached to adjacent structures, but the mounting assembly must support the weight and operational forces of multiple weld heads
Solution Approach 1:
The patent uses magnetic foot pads with locally concentrated magnetic force at specific attachment points around the mounting assembly. Rather than distributing the mounting force uniformly, the magnetic foot pads create localized high-strength attachment zones that can support the weight and operational forces of multiple weld heads while maintaining ease of attachment and removal. The magnetic force is concentrated where needed to support the structural loads.
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 apparatus allows for efficient application of weld overlays on complex piping systems with reduced setup requirements and interference, enabling weld overlays on both sides of piping systems without re-wrapping cables, enhancing the integrity and reliability of mechanical systems.
Implementation Method 1
a mounting assembly having a plurality of magnetic foot pads
Data Source
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AI summary
An apparatus and/or process for applying a weld overlay to a nozzle or piping spool of complex configuration is disclosed. In an exemplary embodiment, the welding apparatus comprises a mounting assembly having a plurality of magnetic foot pads, a tension support rod attached at one end to one of the magnetic foot pads, an upper attachment pad at the opposite end of the rod, and a bottom attachment pad attached to at least one other magnetic foot pad; a travel guide, the travel guide attached to the upper attachment pad at one end and the bottom attachment pad at the other end; and a head assembly attached to the travel guide, the head assembly having: i) a track ring assembly having an inner ring and an outer ring, ii.) at least two opposed weld heads attached to the inner track ring, iii.) at least one movable wire feed drive mechanism on the track ring, and iv.) a drive mechanism located on the outer ring of the track ring, the drive mechanism adapted to permit rotation of the inner ring and the weld heads around the component to be welded.