Estimation model generation apparatus and processing state estimation device

An estimation model generation device that generates an estimation model for estimating a processing state of laser processing in a first device and a second device, the estimation model generation device comprising:

• an information acquiring section that acquires third waveform data including a fifth waveform and a sixth waveform for at least two of third thermal radiation, third visible light, third reflected light, and third laser light being observed from a workpiece during laser processing by the first device, and fourth waveform data including a seventh waveform and an eighth waveform for at least two of fourth thermal radiation, fourth visible light, fourth reflected light, and fourth laser light being observed from the workpiece during laser processing by the second device;
• an information converting section that generates second conversion data by multiplying the fifth waveform by a third coefficient calculated by a relationship between the fifth waveform and the seventh waveform and multiplying the sixth waveform by a fourth coefficient calculated by a relationship between the sixth waveform and the eighth waveform;
• an estimation model generating section that generates a second estimation model for estimating the processing state by the first device and a third estimation model for estimating the processing state by the second device;
• and
• a storage that stores the second estimation model and the third estimation model, wherein the estimation model generation unit generates the second estimation model by performing machine learning by using teacher data having the third waveform data as an explanatory variable and the processing state as a target variable in association with each other, and generates the third estimation model by performing machine learning by using teacher data having the second waveform data as an explanatory variable and the processing state as a target variable in association with each other.