Laminated Chain Bar with Laser-Cut Core
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Solution Overview
Problem
The manufacturing of chain bars for cutting instruments is costly and complex, with existing methods requiring multiple processing steps and materials that can lead to wear and corrosion issues.
Innovation Solution
A laminated chain bar structure comprising an outer plate and a core with integrated fluid flow channels and inter-engagement elements, where the core is formed with laser-cut openings and adhesive bonding to reduce manufacturing costs and enhance structural integrity and cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional manufacturing methods are used for chain bars, then structural integrity can be maintained, but manufacturing cost and complexity increase significantly
Solution Approach 1:
The chain bar is divided into multiple plates (first plate, second plate, third plate, fourth plate) that are stacked and bonded together. Each plate can be manufactured separately using simpler processes, then assembled into the final structure. This segmentation allows each component to be easier to manufacture while the assembled structure maintains required structural integrity through the bonding of multiple layers.
Solution Approach 2:
The chain bar employs a composite structure consisting of multiple plates bonded together with adhesive material. This composite construction combines the strengths of different plate configurations and materials, achieving both reduced manufacturing complexity and maintained structural integrity. The adhesive bonding creates a unified structure that distributes stresses across all plates.
2Productivity
If multiple processing steps are used to manufacture chain bars, then structural integrity is maintained, but manufacturing time and cost increase
Solution Approach 1:
By segmenting the chain bar into multiple separately-manufacturable plates, the production process can be parallelized. Multiple plates can be manufactured simultaneously using identical or similar processes, then quickly assembled. This reduces total manufacturing time compared to creating a single complex piece through multiple sequential processing steps.
Solution Approach 2:
The plates are pre-formed with their final shapes and features before assembly. This preliminary action allows each plate to be optimized for its specific function and manufactured using efficient processes, rather than requiring complex multi-step processing of a single monolithic structure. The pre-formed plates are then quickly bonded together to complete the chain bar.
3Reliability
If conventional chain bar structures are used, then manufacturing is straightforward, but wear and corrosion resistance are insufficient
Solution Approach 1:
The multi-plate composite structure allows for enhanced wear and corrosion resistance by selecting materials with superior protective properties for specific plates that contact the chain. The adhesive bonding creates a unified structure that prevents corrosion propagation, while the layered composite design inherently provides better resistance to wear and corrosion compared to conventional single-structure chain bars.
Solution Approach 2:
Different plates in the chain bar structure can have different material compositions, thicknesses, or surface treatments tailored to their specific functional requirements. Plates experiencing higher wear or corrosion can be made from more resistant materials or given protective coatings, while other plates use standard materials. This localized optimization improves overall reliability without requiring the entire structure to be overly complex.
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 laminated structure simplifies manufacturing, reduces wear, and improves corrosion resistance, while maintaining structural integrity and enabling efficient cooling, thus extending the chain bar's lifespan and performance.
Implementation Method 1
at least one opening extending completely through the core is a laser cut opening
Implementation Method 2
the chain bar is assembled with adhesive extending into the at least one opening
Data Source
Figure 1
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AI summary
Chain bar apparatus and methods are disclosed that may be formed from plastic, metal or other materials. Laser cutting of a chain bar core can provide improved structural characteristics, for example when adhesive is used to assemble the chain bar. Flow diversion elements can be used to optimize flow throughout the chain bar.