Sheet Metal Electrical Box Stamping and Folding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing methods for manufacturing electrical boxes result in significant scrap metal, increasing production costs due to inefficient use of sheet material.
Innovation Solution
A method involving stamping and folding sheet material to create electrical boxes with reduced scrap, where multiple blanks are cut from a single sheet to minimize waste, and folding techniques are optimized to form integral, unitary boxes with reduced material loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional folding techniques are used to form electrical boxes from sheet metal, then the box structure is formed, but a large amount of scrap metal is generated
Solution Approach 1:
The sheet metal is divided into multiple blanks arranged in a specific pattern before cutting. This segmentation allows optimal utilization of the sheet material, enabling formation of multiple boxes from a single sheet with minimal waste material between blanks.
Solution Approach 2:
The patent transitions from traditional 2D flat pattern cutting to a 3D nested arrangement where blanks are positioned in overlapping layers. This dimensional change allows blanks to share common material areas, significantly reducing scrap generation while maintaining box structural integrity.
2Productivity
If multiple separate blanks are cut and assembled to form boxes, then box production is achieved, but manufacturing cost increases due to material waste
Solution Approach 1:
Multiple box blanks are merged into a single integrated cutting pattern on one sheet of metal. The blanks are positioned to share common edges and material areas, combining what would traditionally be separate cutting operations into one efficient process that minimizes total material consumption.
Solution Approach 2:
The patent creates continuous material flow from the original sheet through the cutting and folding process. By arranging blanks to share boundaries and using nested positioning, the useful material action continues across what would traditionally be waste areas, maximizing material utilization throughout the manufacturing process.
Data Source
AI summary
The present invention is directed to a method of manufacturing an electrical box to reduce the amount of scrap material therefrom. More particularly, the present invention provides a metallic electrical outlet box that is formed from a sheet of material and folded into an electrical box.