Title:
NUGGET DIAMETER ESTIMATION SYSTEM, NUGGET THICKNESS ESTIMATION METHOD, AND NUGGET DIAMETER ESTIMATION PROGRAM
Document Type and Number:
Japanese Patent JP2023024030
Kind Code:
A
Abstract:
To provide a system for estimating nugget diameter generated at a fusion point of spot welding by using an X-ray with good transmittance among non-destructive inspection methods.SOLUTION: The system for estimating nugget diameter includes: an X-ray source for irradiating a welding part with X-rays; an X-ray detection unit that detects the X-rays transparent the welding part; and a processing unit that calculates the diameter of a nugget generated in the welding part. The processing unit includes: a material information acquisition unit that acquires physical information of a plurality of metal plate members; an X-ray intensity acquisition unit that acquires the transmission intensity of the welding part; a thickness-after-welding acquisition unit that acquires the thickness of the plurality of metal plate members after being spot welded; and an estimation calculation unit that estimates the nugget diameter by using the thickness of the plurality of metal plate members after being spot welded, the physical information of the metal plate members, the X-ray intensity before transmission of welding part, and the welding part transmission intensity.SELECTED DRAWING: Figure 1
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Inventors:
SUGIURA TOMOMASA
AIURA HIROKI
SAKAMOTO TAKUYA
KAWASHIMA KUNIHIRO
AIURA HIROKI
SAKAMOTO TAKUYA
KAWASHIMA KUNIHIRO
Application Number:
JP2021130070A
Publication Date:
February 16, 2023
Filing Date:
August 06, 2021
Export Citation:
Assignee:
TOYOTA PROD ENG CORP
International Classes:
G01B15/04; G01B15/02; G01N23/083
Attorney, Agent or Firm:
Shirasaka Patent Attorney Corporation