Metal Pipe Forming Layout With Single-Side Busbar Heating
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Solution Overview
Problem
Existing forming devices are large in size due to the need for a busbar to be connected to both upper and lower electrodes, which increases the device's dimensions and poses safety risks and operational obstacles.
Innovation Solution
The forming device connects the busbar only to either the upper or lower electrodes, reducing the overall busbar region and allowing for a more compact design, with the busbar positioned on the rear surface to avoid obstacles and minimize contact risks, and ensures even heating by direct power supply between electrodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the busbar is connected to both upper and lower electrodes, then the electrodes can be supplied with electric power for heating, but the device size increases and safety risks arise
Solution Approach 1:
The busbar is merged with the movable die assembly, combining the power supply function into the moving component rather than having separate connections to both upper and lower electrodes. This integration reduces the overall device footprint while maintaining effective heating capability.
Solution Approach 2:
The busbar serves multiple functions: it supplies electric power to the electrodes for heating while also being integrated into the movable die structure. This multi-functionality eliminates the need for separate power connection structures, thereby reducing device size.
2Use of energy by moving object
If the busbar is connected to both upper and lower electrodes, then the electrodes can be supplied with electric power for heating, but safety risks increase due to potential short circuits
Solution Approach 1:
By merging the busbar connection into the movable die assembly, the number of electrical connection points is reduced. This minimizes potential failure modes and short circuit risks while maintaining effective power delivery to the electrodes for heating.
3Power
If the busbar is positioned in the central region, then power supply is efficient, but it creates operational obstacles and increases contact risks
Solution Approach 1:
The busbar is repositioned from a central location to the rear surface of the movable die, utilizing unused spatial dimension. This relocation eliminates operational obstructions and reduces contact risks while power supply efficiency is maintained through the integrated connection.
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 configuration reduces the device's size, enhances safety by minimizing short circuits, and allows for unobstructed operation by positioning the busbar out of the way, while ensuring uniform heating of the metal pipe material.
Implementation Method 1
a busbar that is connected only to either the upper electrodes or the lower electrodes to supply electric power from a power supply
Implementation Method 2
upper electrodes and lower electrodes that sandwich both end parts of the metal pipe material therebetween from upper and lower sides to heat the metal pipe material
Data Source
AI summary
A forming device that forms a metal pipe by heating and expanding a metal pipe material includes: a pair of an upper die and a lower die between which the metal pipe material is heated and expanded; upper electrodes and lower electrodes that sandwich both end parts of the metal pipe material therebetween from upper and lower sides to heat the metal pipe material; and a busbar that is connected only to either the upper electrodes or the lower electrodes to supply electric power from a power supply.