US Patent Application 18233954. DETERMINATION METHOD AND DETERMINATION DEVICE FOR LASER PROCESSING STATE simplified abstract
Contents
DETERMINATION METHOD AND DETERMINATION DEVICE FOR LASER PROCESSING STATE
Organization Name
Panasonic Intellectual Property Management Co., Ltd.
Inventor(s)
DETERMINATION METHOD AND DETERMINATION DEVICE FOR LASER PROCESSING STATE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18233954 titled 'DETERMINATION METHOD AND DETERMINATION DEVICE FOR LASER PROCESSING STATE
Simplified Explanation
The patent application describes a method for determining the processing state of a workpiece during laser welding.
- The method involves using an optical sensor to detect various types of light (heat radiation, visible light, and reflected light) generated at the welded portion of the workpiece.
- A signal indicating a change in the detected light is obtained from the optical sensor, specifically in a time section corresponding to the welding time of each workpiece.
- The processing state is determined by inputting a feature quantity, which includes the signal intensity of the detected light, to a determination model.
- The determination model analyzes the feature quantity to determine the position and number of molten shape abnormalities in the welded region.
- Molten shape abnormalities occur when there is a foreign substance present at the overlapping surface of the workpiece.
- The determination result, indicating the processing state, is then outputted.
Original Abstract Submitted
A determination method for determining a processing state includes detecting, using an optical sensor, at least one of heat radiation light, visible light, and reflected light generated at a welded portion formed at a surface of a workpiece by emission of a laser beam on the workpiece, obtaining, from the optical sensor, a signal indicating a change in one of heat radiation, visible light, and reflected light in a time section corresponding to a welding time of each workpiece, determining, as the processing state, the position and number of molten shape abnormality in a welded region having a molten length and a molten width by inputting a feature quantity to a determination model that determines the processing state, the feature quantity including signal intensity of the signal, the molten shape abnormality occurring when a foreign substance exists at an overlapping surface of the workpiece, and outputting a determination result.
