Resin Frame Member Inclined Surface Shearing Method
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Solution Overview
Problem
The existing resin frame members for fuel cells have a gap inside the inner peripheral end, which reduces power generation efficiency due to the absence of an inclined surface, leading to inefficient energy production.
Innovation Solution
A method and processing die are developed to form an inclined surface on the inner peripheral end of the resin frame member by shearing the side parts of a resin film using a lower and upper die, maintaining a predetermined clearance to create an inclined cut surface that reduces the gap and enhances energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If an inclined surface is formed on the inner peripheral end of the resin frame member, then power generation efficiency is improved by reducing gaps, but the manufacturing process becomes more complex requiring specialized processing dies with cutouts
Solution Approach 1:
The processing die is divided into an upper die and a lower die with distinct functional sections. The lower processing section of the lower die and the upper processing section of the upper die work together to shear the side parts, creating the inclined surface through coordinated action of separated components.
Solution Approach 2:
The cutout in the lower die introduces a new geometric dimension to the processing surface. By forming the placement surface with a cutout that creates an inclined baseline, the shearing process naturally produces the desired inclined surface on the resin frame member without requiring complex angled processing sections.
2Strength
If the inner peripheral end of the resin frame member is positioned around the outer peripheral portion of the MEA, then structural support is provided, but a gap is formed inside the inner peripheral end reducing power generation efficiency
Solution Approach 1:
An inclined surface is formed on the side parts of the inner peripheral end of the resin frame member. This inclined geometry allows the inner peripheral end to maintain its structural support function while reducing the gap formation between the resin frame member and the MEA, thereby improving power generation efficiency.
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 efficiently forms an inclined surface on the resin frame member, reducing the gap and improving power generation efficiency by maintaining energy production in the fuel cell.
Implementation Method 1
moving an upper die toward the lower die and shearing each of the side parts by a lower processing section of the lower die and an upper processing section of the upper die, to thereby form the inclined surface
Data Source
AI summary
In a method of producing a resin frame member for a fuel cell, a processing die is used. The method includes a processing step of moving an upper die toward a lower die to thereby form an inclined surface on each of side parts of a resin film. In the processing step, shearing is performed while maintaining a predetermined clearance between the lower processing section and the upper processing section and in a state where each of the side parts is at least partially positioned at a cutout so that each of the side parts is inclined downward toward the inside. The cutout is formed by cutting off an edge part of a placement surface that is positioned on the lower processing section side.