| 摘要 |
PROBLEM TO BE SOLVED: To provide a joint inspection apparatus for a friction stirring point joint, which can determine whether or not a problem is present in a joint part, quantitatively and efficiently.SOLUTION: A control panel 5 includes: a pixel row extraction unit 6 for extracting multiple pixel rows linearly arranged in the radial direction of a joint at predetermined intervals around the center of the joint in a photographed image P1; a calculation unit 7 for calculating and processing the brightness of pixels in each pixel row, respectively; a line certification unit 8 for certifying a pixel row having a pixel being a brightness value of a predetermined value Zor more by a predetermined value Xor more as a light reflection line in each pixel row, and alternatively, certifying a pixel row having the pixel being a brightness value of a predetermined value Zor less by a predetermined value Xor more as a non-light reflection line; and a determination unit 9 for determining that the joining state of the joint has no problem when the light reflection line is a reference value Tor more and the non-light reflection line is a reference value Tor more.SELECTED DRAWING: Figure 1 |
