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http://dx.doi.org/10.7736/KSPE.2014.31.12.1121

Laser Scanning Technology for Ultrasonic Horn Location Compensation to Modify Nano-size Grain  

Kim, Kyugnhan (Department of Laser & Electron Beam Application, Korea Institute of Machinery and Materials)
Lee, Jaehoon (Department of Laser & Electron Beam Application, Korea Institute of Machinery and Materials)
Kim, Hyunse (Department of Extreme Thermal System, Korea Institute of Machinery and Materials)
Park, Jongkweon (Department of Ultra-Precision Machines and Systems, Korea Institute of Machinery and Materials)
Yoon, Kwangho (Department of Laser & Electron Beam Application, Korea Institute of Machinery and Materials)
Publication Information
Journal of the Korean Society for Precision Engineering / v.31, no.12, 2014 , pp. 1121-1126 More about this Journal
Abstract
To compensate location error of ultrasonic horn, the laser scanning system based on the galvanometer scanner is developed. It consists of the 3-Axis linear stage and the 2-Axis galvanometer scanner. To measure surface shape of three-dimensional free form surface, the dynamic focusing unit is adopted, which can maintain consistent focal plane. With combining the linear stage and the galvanometer scanner, the scanning area is enlarged. The scanning CAD system is developed by stage motion teaching and NURBS method. The laser scanning system is tested by marking experiment with the semi-cylindrical sample. Scanning accuracy is investigated by measured laser marked line width with various scanning speed.
Keywords
Ultrasonic horn; Laser; Scanning; Three-dimensional free form; Galvanometer;
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