JOINING QUALITY MANAGEMENT METHOD AND JOINING QUALITY MANAGEMENT APPARATUS

摘要

Provided is a joining quality management apparatus which allows for simple and speedy inspection of a joining state of a joint of a friction welded component obtained by cutting off a burr on the peripheral side of the joint occurring in friction welding.The joining quality management apparatus is provided with an imaging means (3) which images the peripheral surface of the joint (a) of the friction welded component (A), an extracting means (4) which extracts dark pixels having luminance values not higher than a reference luminance value from image data captured by the imaging means (3), a number-of-pixels summing means (5) which sums the number (N) of the dark pixels extracted by the extracting means (4), and a determination means (6) which determines whether a joining quality satisfies a management reference.  The determination means (6) determines that the management reference is satisfied when the number (N) of the dark pixels is not larger than the reference number (N0) of pixels, but determines that the management reference is not satisfied when the number (N) is larger than the reference number (N0) of pixels.