A Method of Drilling Non-Straight Holes Using Laser Ablation and Plasma Amplification
- 總結
- Researchers at Purdue University have developed a novel manufacturing technique for creating non-straight microholes called laser ablation and plasma amplification (LAPA). Its essential physical process is the interaction among a picosecond laser pulse, plasma generated by a prior nano- or picosecond laser pulse, and a microhole sidewall. LAPA promises a solution for fast, cost-effective, high-quality manufacturing of non-straight microholes with arbitrarily varying diameters. This will have a broad impact on many related areas such as fuel efficiency improvement and the reduction of toxic gas emission to the environment.
- 技術優勢
- Perform machining operations that were previously impossibleFaster than existing methods Create precise holes in non-conductive materials
- 技術應用
- Diesel engine fuel injector fabrication Aerospace engines Precision manufacturing
- 詳細技術說明
- Yung ShinPurdue Manufacturing LaboratoriesPurdue Mechanical Engineering
- *Abstract
-
- *Background
- Non-straight microholes with diameters varying with depth are needed for many important applications. However, it is still very challenging to drill non-straight microholes with arbitrarily varying diameters. Due to the very small-sized hole, it is very difficult to deliver laser beam energy directly to the microhole sidewall to change the diameter of the hole in a controlled way. Past work has been reported on drilling reverse tapered microholes through electrical discharge machining (EDM) and micro electrochemical machining (ECM); however, such techniques are limited to conductive materials.
- *IP Issue Date
- None
- *IP Type
- Provisional
- *Stage of Development
- Concept developed
- *Web Links
- Purdue Office of Technology CommercializationPurdueInnovation and EntrepreneurshipYung ShinPurdue Manufacturing LaboratoriesPurdue Mechanical Engineering
- 國家
- United States
- 申請號碼
- None
- 國家/地區
- 美國
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