Fluid Jet Cutting Coated Workpiece with Anti-Corrosion Abrasive
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Solution Overview
Problem
Existing cutting methods for coated metal structures, such as those used in the automotive industry, result in unprotected cut edges due to damage or removal of the anti-corrosion coating, necessitating additional sealing processes and increasing the risk of corrosion.
Innovation Solution
A method and device utilizing a fluid jet with dispersed abrasive particles, including zinc, aluminum, or their alloys, to cut coated metal structures, where the abrasive is applied as an anti-corrosion coating to the cutting edge during the cutting process, ensuring immediate protection and re-establishing the original coating material on the cut edge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional cutting methods (laser or water jet) are used on coated metal structures, then cutting can be performed, but the anti-corrosion coating is damaged or removed, leaving unprotected cut edges
Solution Approach 1:
The patent combines the cutting function and coating application function into a single integrated process. The abrasive particles used for cutting simultaneously serve as coating material, so that cut edges are coated during the cutting process itself, eliminating the need for separate coating operations and ensuring immediate corrosion protection.
Solution Approach 2:
The cutting process itself provides the coating function. The abrasive particles that perform the cutting action also deposit anti-corrosion coating on the cut edges, making the process self-sufficient and eliminating the need for additional sealing or protection steps.
2Reliability
If additional sealing processes are applied to protect cut edges, then corrosion protection is improved, but the number of manufacturing steps and process complexity increase
Solution Approach 1:
The patent merges multiple functions (cutting and coating) into a single process step, eliminating the need for separate sealing or protection operations. This integration reduces process complexity while maintaining or improving corrosion protection.
Solution Approach 2:
The cutting process automatically provides corrosion protection through the abrasive particles that coat the cut edges during cutting, making the system self-sufficient and eliminating additional manufacturing steps.
3Productivity
If abrasive particles are used for cutting, then cutting efficiency is improved, but the abrasive materials are consumed and require replacement, increasing costs
Solution Approach 1:
The patent implements a recycling system where abrasive particles are collected after the cutting process and reused. This recovery approach reduces material consumption and costs while maintaining cutting efficiency, transforming a consumable resource into a reusable one.
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 method effectively seals and protects the cut edges from corrosion by applying an anti-corrosion coating simultaneously with cutting, reducing the need for additional sealing steps and maintaining the integrity of the original coating, while also enabling the reuse of the abrasive materials, thus promoting a sustainable and economical cutting process.
Implementation Method 1
a fluid jet being used as the cutting means, which is accelerated to a predetermined jet speed and with a predetermined kinetic energy
Implementation Method 2
a fluid jet being used as the cutting means... a cutting edge can be produced in the workpiece
Implementation Method 3
the abrasive is applied as an anti-corrosion coating to the cutting edge thereof
Data Source
Figure 1
Figure 2
AI summary
The method involves utilizing a fluid jet (8) as a cutting tool, and accelerating the fluid jet on a predetermined jet velocity. The fluid jet is radiated on a surface area (11) of a workpiece (10) to be cut with predetermined kinetic energy. A cut edge (9) is generated in the workpiece, where the cut edge is vertical to the area. The fluid jet is formed from a medium, and particles of an abrasive additive (4) are dispersed in the medium, where the additive comprises anti-corrosion properties. The additive is applied as an anti-corrosion coating during cutting of the workpiece on the cut edge. The medium is selected from a group consisting of water, low-viscosity mineral oil, petroleum and/or solvent i.e. isopropanol. The abrasive additive is selected from a group consisting of a granular material e.g. zinc, aluminum, alloy material, corundum, ceramic material, quartz sand and/or volcanic rock, nickel, bronze and/or oxide. Independent claims are also included for the following: (1) a gumption unit comprising a gumption additive (2) a device for cutting a coated workpiece comprising a storage for storing medium.