Annular Abrasive Bead for Cutting Wire Without Metal Support
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Solution Overview
Problem
Conventional cutting wire production for hard materials requires a metal support element for each bead, leading to increased costs, complexity, and risk of deformation during sintering, with the support having no active role in cutting.
Innovation Solution
A process that eliminates the metal support element by loading a mixture of metal powder and abrasive granules into a mold, forming and sintering annular elements with grasping means, and anchoring them to a cable using a plastic material, allowing for stable attachment without rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metal support element is used for each bead in conventional cutting wire production, then the anchoring of the matrix containing the abrasive to the strand cable is enabled, but the production costs increase, the production complexity increases, and the risk of deformation during sintering increases
Solution Approach 1:
The invention extracts and eliminates the metal support element from the bead structure, retaining only the essential anchoring function through means such as transverse recesses or threads formed directly in the annular element itself. This removes the unnecessary component that increases complexity and cost while maintaining the required anchoring stability to the cable.
Solution Approach 2:
The invention merges the anchoring function with the bead structure by integrating features like transverse recesses or threads directly into the annular element during forming. This combines what were previously separate functions (support element for anchoring + abrasive matrix) into a single integrated component, reducing overall complexity.
2Reliability
If a metal support element is used for each bead, then the anchoring function is provided, but additional drilling and threading operations are required which lead to additional costs and longer production times
Solution Approach 1:
The invention incorporates anchoring features such as transverse recesses or threads directly during the initial forming of the annular element, before the sintering process. This preliminary formation of anchoring means eliminates the need for subsequent drilling and threading operations, thereby increasing production speed and reducing manufacturing steps.
Solution Approach 2:
By removing the metal support element entirely and forming anchoring features directly in the annular element, the invention eliminates the additional drilling and threading operations that would be required, thus improving productivity and reducing production time.
3Strength
If a metal support element is used, then the bead structure is provided, but the sintering step requires great caution to avoid deformation and fracture of the matrix
Solution Approach 1:
The invention removes the metal support element that causes deformation risks during sintering. By forming the annular element directly from the mixture of metal powder and abrasive granules without a metal support core, the sintering process becomes simpler and less risky, as there is no support element to deform or cause matrix fracture.
Solution Approach 2:
The invention changes the structural parameters of the bead by eliminating the metal support element and forming a solid annular structure. This parameter change simplifies the sintering process by removing the thermal and mechanical constraints associated with protecting a metal support element during heating, thereby reducing manufacturing difficulty.
4Reliability
If a metal support element is used, then the bead can be anchored to the cable, but the support element has no active role in cutting and increases material costs
Solution Approach 1:
The invention extracts and removes the metal support element that serves only as an anchoring carrier. By eliminating this non-cutting component, the invention reduces material costs while maintaining anchoring functionality through integrated features like transverse recesses or threads formed in the annular element itself.
Solution Approach 2:
The invention makes the annular element itself multi-functional by integrating both the cutting function (through abrasive granules in the matrix) and the anchoring function (through integrated recesses or threads) into a single structure. This eliminates the need for a separate metal support element that performed only anchoring, thereby reducing material waste and cost.
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
This process reduces material costs, simplifies production, and enhances cutting efficiency by eliminating unnecessary operations, achieving higher cutting speeds and yields while minimizing the risk of deformation during sintering.
Implementation Method 1
During the sintering step, solid bonds are formed between adjacent granules of the matrix with consequent progressive elimination of air zones between the granules themselves and thus with the reduction of the surface energy of the single granules, so that the mechanical characteristics of the product once sintered are improved.
Data Source
Figure 1
Figure 2~11
AI summary
The present invention relates to a process for making an annular abrasion bead element for a cutting wire for cutting relatively hard materials, comprising the following sequential steps: - loading a mixture of metal material powder and abrasive granular material into at least one annular seat of a first mold; - forming said mixture in said mold, thus obtaining at least one formed annular element with inner through opening (5); and - sintering each formed annular element to obtain a finished annular abrasive element.