Non-linear Binder Trim for Metal Forming Scrap Reduction
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Solution Overview
Problem
In metal forming processes, existing metal blanks with uniform binder trim components often result in either material tears or surface distortions due to inadequate material distribution during the forming process, leading to inefficiencies and increased scrap material.
Innovation Solution
The development of metal blanks with non-linear binder trim components featuring projections, recesses, and flat sections, strategically designed to optimize material distribution and flow, allowing for tailored manufacturing requirements and reduced scrap material by sharing binder material between adjacent blanks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If uniform binder trim components are used in metal blanks, then manufacturing simplicity is maintained, but material distribution during forming is inadequate leading to tears or surface distortions
Solution Approach 1:
The binder trim component is designed with non-uniform geometry featuring projections and recesses at specific locations. These local variations provide targeted material distribution to different areas of the metal blank during forming, ensuring adequate material supply to high-stress regions while maintaining overall forming precision
Solution Approach 2:
The binder trim component is divided into distinct geometric features including projections, recesses, and flat sections. This segmentation allows each region to serve specific functions in material flow control, preventing both material deficiency (tears) and excess material (surface distortions) in different areas of the formed part
2Strength
If excessive binder material is provided to the part component, then material tears are prevented, but surface distortions and wrinkles occur in the formed part
Solution Approach 1:
Projections and recesses are strategically positioned to control material flow locally. Projections provide additional material to areas prone to tearing, while recesses restrict material flow in areas where excess material would cause surface distortions, achieving both tear prevention and surface quality
3Ease of manufacture
If uniform binder trim components are used, then manufacturing process is simple, but scrap material increases due to tears and distortions
Solution Approach 1:
The non-uniform binder trim with projections and recesses is designed through simulation to optimize material distribution, preventing defects that lead to scrap. This targeted approach reduces overall scrap material by eliminating tears and surface distortions without requiring complex manufacturing processes
4Manufacturing precision
If the binder trim component is designed with non-linear sections and projections, then material flow control is improved, but the complexity of the binder trim component increases
Solution Approach 1:
Projections and recesses are placed at specific locations corresponding to critical areas of the part component. This localized approach provides precise material flow control where needed while keeping other areas of the binder trim simple, balancing control precision with design complexity
Data Source
AI summary
A metal blank that includes a binder trim component having at least one cut edge with a non-linear section. The creation of the non-linear section simultaneously forms a corresponding section in a binder trim component of an adjacent metal blank so that binder material can be shared therebetween. This reduces the amount of scrap metal, as the binder trim component is subsequently cut off and discarded. Furthermore, the non-linear section can include one or more strategically placed formations, such as projections, recesses, flat sections, etc., that cause it to be non-uniform along its length and to be specifically tailored to the manufacturing requirements of the part being formed.