Scored Sheet Metal Sink Forming for Tighter Bend Radii
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Forming sinks from stainless steel or titanium sheets with uniform thickness poses challenges in creating sharper and tighter radius bends due to the material's strength, making it difficult to implement perpendicular bends effectively.
Innovation Solution
A method involving a milling machine to score the metal sheet along axes corresponding to desired bends, allowing for deeper scores that range from 1/10th to 9/10th of the sheet's depth, followed by pressing to form basin and flange portions, reducing the bend radius from 3.175 millimeters to 1.5875 millimeters or less.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If stainless steel or titanium sheets with uniform thickness are used, then durability and resistance to damage are improved, but the ability to create sharper and tighter radius bends deteriorates
Solution Approach 1:
The patent applies preliminary scoring to the metal sheet before bending. The scoring process creates controlled grooves or notches at the bend lines, which pre-weakens the material in specific locations. This preliminary action allows the strong, durable metal sheet to be bent with tighter radii by concentrating the deformation at the scored locations rather than requiring the entire sheet to flex, thus resolving the contradiction between maintaining material strength and achieving sharp bends
2Shape
If the depth of the scored portion is increased to reduce bend radius, then the ability to create tighter bends is improved, but the risk of material failure increases
Solution Approach 1:
The patent applies local quality by scoring only specific portions of the metal sheet at the bend lines rather than uniformly treating the entire sheet. The scoring depth and pattern are localized to exactly where bends are needed, creating controlled weakness only at those locations. This allows tight bends to be achieved without compromising the overall integrity and strength of the metal sheet in other areas, resolving the contradiction between bend radius and material integrity
Data Source
AI summary
In an example, a method for milling a sink is disclosed. The method includes receiving a metal sheet, positioning the metal sheet in a receiving assembly for a milling machine, and scoring the metal sheet via a cutter of the milling machine. The metal sheet is scored along an axis corresponding to a bend of the sink. The method also includes manipulating the metal sheet to form the sink.