Stainless Sheet Metal Cutting Disc With Bent Edges for Rigidity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional cutting discs made from die-cast aluminum discolor when in contact with acidic foods and during dishwasher washing, requiring immediate hand washing, and they are heavy, necessitating more powerful motors and brake systems, while also being disposable and needing replacement with matching angular momentum, which poses security and deceleration challenges.
Innovation Solution
A cutting disc manufactured from thin stainless sheet metal with bent edges to enhance torsional rigidity, allowing for lighter weight and improved corrosion resistance, and designed to fit existing cutting machines with the same angular momentum as the replaced disc, ensuring compatibility with existing motor and brake systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a cutting disc is made from die-cast aluminium to achieve light weight, then the weight is reduced and manufacturing is simplified, but the disc discolours when in contact with acids and during dishwasher washing, requiring immediate hand washing
Solution Approach 1:
The cutting disc uses a composite construction with a plastic base material and a metal reinforcement element (aluminum or stainless steel) embedded in the cutting plane. This combines the light weight and cost benefits of plastic with the corrosion resistance and strength of metal, resolving the contradiction between weight reduction and corrosion resistance.
2Strength
If the material thickness of an aluminium cutting disc is increased to achieve sufficient stiffness and strength, then the mechanical strength is improved, but the weight of the disc increases, requiring more powerful motors and brake systems
Solution Approach 1:
The composite structure with metal reinforcement provides high strength and stiffness with minimal thickness. The metal element embedded in the cutting plane delivers mechanical strength without requiring increased overall thickness, thus avoiding weight increase and the need for more powerful motors and brakes.
Solution Approach 2:
Instead of uniformly thickening the entire disc, the metal reinforcement is strategically placed only in the cutting plane where strength is needed. This localized reinforcement provides necessary mechanical strength while minimizing overall weight.
3Ease of operation
If a cutting disc is designed as a disposable article for easy replacement, then ease of operation and hygiene are improved, but the angular momentum must be precisely matched to existing brake systems, posing security and deceleration challenges
Solution Approach 1:
The plastic base material allows for precise control of the overall weight and dimensions of the cutting disc. By adjusting the plastic thickness and density, manufacturers can precisely tune the angular momentum parameter to match existing brake systems, ensuring safe deceleration while maintaining disposable convenience.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Cutting disc (1) for use in a cutting machine, comprising a centrally arranged through hole (3) and a radially extending opening (6). The invention is characterised in that the cutting disc (1) is manufactured from sheet metal, in that it comprises a first bent edge (7) extending peripherically around the disc (1) and a second bent edge (8) extending peripherically around the through hole (3), and in that the disc (1) comprises a ditch-formed section (5, 9) extending radially from the centre of the cutting disc (1) and out to the said first bent edge (7).