Methods and systems for electrochemical machining of articles formed by additive manufacturing
US-2020385883-A1 · Dec 10, 2020 · US
Method for improving surface quality of alloy micro-area via supersaturated film and use thereof
US12311458B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12311458-B2 |
| Application number | US-202217907428-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 19, 2022 |
| Priority date | Aug 17, 2021 |
| Publication date | May 27, 2025 |
| Grant date | May 27, 2025 |
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Abstract
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Disclosed are a method for improving a surface quality of an alloy micro-area via a supersaturated film and use thereof. The method includes: adding nickel chloride to a sodium chloride-ethylene glycol electrolyte until the electrolyte is saturated, and conducting electrochemical machining.
First claim
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What is claimed is: 1. A method for improving a surface quality of an alloy micro-area via a supersaturated film, comprising: adding nickel chloride to a sodium chloride-ethylene glycol electrolyte until the electrolyte is saturated, and conducting electrochemical machining (ECM). 2. The method for improving the surface quality of the alloy micro-area via the supersaturated film of claim 1 , wherein the sodium chloride-ethylene glycol electrolyte is further added with chromium trichloride and/or ferrous chloride. 3. The method for improving the surface quality of the alloy micro-area via the supersaturated film of claim 1 , wherein the ECM is conducted by direct-current electrochemical machining (DECM) or pulse electrochemical machining (PECM). 4. The method for improving the surface quality of the alloy micro-area via the supersaturated film of claim 1 , wherein the alloy is selected from the group consisting of a solid solution-strengthened alloy, a precipitation-strengthened alloy, and a particle-enhanced metal matrix composite. 5. The method for improving the surface quality of the alloy micro-area via the supersaturated film of claim 4 , wherein the precipitation-strengthened alloy is a nickel-based superalloy. 6. The method for improving the surface quality of the alloy micro-area via the supersaturated film of claim 3 , wherein the DECM is conducted at a voltage of 20 V to 30 V, a machining gap of 0.3 mm to 0.7 mm, and an electrolyte flow rate of 5 ml/s to 15 ml/s. 7. The method for improving the surface quality of the alloy micro-area via the supersaturated film of claim 6 , wherein the DECM is conducted at the voltage of 24 V, the machining gap of 0.5 mm, and the electrolyte flow rate of 5 ml/s.
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Frequently asked questions
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- What does patent US12311458B2 cover?
- Disclosed are a method for improving a surface quality of an alloy micro-area via a supersaturated film and use thereof. The method includes: adding nickel chloride to a sodium chloride-ethylene glycol electrolyte until the electrolyte is saturated, and conducting electrochemical machining.
- Who is the assignee on this patent?
- Univ Qingdao Technology, Univ Northwestern Polytechnical
- What technology area does this patent fall under?
- Primary CPC classification B33Y40/20. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 27 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).