Hyundai Motor Company

Kia Motors Corporation

Unist-academy Industry Research Corporation

ByungHun Kim

Franklin Don Bien

Jae Ryeon Hwang

Liu Zhenyi

Hyon Gi Yoo

Seul Ki Rom Kim

Nguyen Ngoc Quang

Chan Woo Jeong

An apparatus for detecting a defect of a press panel includes: an acoustic emission sensor unit configured to detect at least one elastic wave signal emitted from the press panel as a detection target during press work, a period measurer configured to measure a period as a section in which there are consecutive signals with a greater voltage than a threshold voltage among the at least one detected signals, and a defect existence determination unit configured to determine that a defect is generated in the press panel when the measured period is greater than a first reference value, and to determine that the press panel is in a normal state when the measured period is smaller than a second reference value which is smaller than the first reference value.

Apparatus and method for detecting defect of press panel

Growing community of inventors

Ulsan, South Korea

ByungHun Kim