Portable Welding Process Module for Long-Distance Wire Feeding
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Solution Overview
Problem
Welding equipment in shipyards faces challenges such as navigating through small openings and requires smaller, lighter equipment to reduce operator fatigue due to the distance between power sources and the welding area.
Innovation Solution
A portable advanced process module system comprising a portable power electronics unit and a wire feeder, housed in suitcase-style enclosures, enables advanced welding processes with reduced size and weight, utilizing power and communication cables for control signals and potentially wireless connectivity to facilitate operation within a 75-foot working envelope.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If welding power sources are located remotely from the welding area, then operator safety is improved by separating equipment from the work zone, but operator fatigue increases and mobility is reduced due to the distance and size of equipment
Solution Approach 1:
The system divides the welding equipment into separate functional modules: a remote power source and a portable process module containing the wire feeder and control electronics. This segmentation allows the heavy power source to remain stationary while the lightweight process module moves with the operator, improving both safety and ease of operation.
Solution Approach 2:
The invention transitions from a single integrated welding machine to a distributed system where control and power functions are separated in space. The process module acts as an intermediate node between the remote power source and the welding torch, enabling the operator to work within a 75-foot envelope while keeping the main power source outside the immediate work zone.
2Ease of operation
If welding equipment is made smaller and lighter for better mobility, then ease of movement through openings is improved, but power delivery capability and welding performance may be compromised
Solution Approach 1:
The heavy power delivery components are extracted from the portable process module and placed in a separate remote power source. This allows the process module to remain lightweight and portable while the power source provides full welding power capacity from a stationary location, resolving the contradiction between mobility and power capability.
Solution Approach 2:
The portable process module serves as an intermediary device that receives power and control signals from the remote power source and delivers them to the welding torch. This intermediary approach enables the separation of power delivery (handled by the remote source) from process control (handled by the portable module), maintaining both mobility and power capability.
3Adaptability or versatility
If long control cables are used to connect remote power sources, then flexibility in power source placement is improved, but inductance increases and sparking risks are elevated
Solution Approach 1:
The process module acts as an intermediary that minimizes cable length between the power source and welding torch by positioning the power electronics closer to the work area. This reduces the inductance and sparking risks associated with long control cables while maintaining the flexibility of remote power source placement through wireless or short-cable connections.
Data Source
AI summary
A portable advanced process module system includes, for example, a welding power source, an portable advanced process module, and a wire feeder. The portable advanced process module and the wire feeder are separately enclosed in suitcase style enclosures with disconnectable power and communication means between the portable advanced process module and the wire feeder. The processing unit includes power electronics to enable advanced weld processes that can be delivered to the wire feeder and a welding work piece. The portable advanced process module is powered by a DC bus that can be supplied by a welding power source. Connecting the portable advanced process module between the welding power source and the wire feeder enables advanced welding processes to be accomplished at great distances from the main welding power source. Separating the power electronics into the portable advanced process module and maintaining a standard suitcase wire feeder form factor keeps the welding equipment used in the working area envelope small, light, and portable.