HEAT TREATMENT DETERMINATION DEVICE, AND HEAT TREATMENT DETERMINATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a heat treatment determination device and a heat treatment determination method capable of easily and reliably determining a workpiece not yet heat-treated and a heat-treated workpiece with a simple device.SOLUTION: A heat treatment determination device comprises: an irradiation part 22 that irradiates a surface of a workpiece W with measurement light formed of monochromatic light in a spot shape; a light receiver 23 that receives the measurement light reflected by the surface of the workpiece W to generate a received light quantity signal; and a determination part 25 that compares a received light quantity threshold set in advance corresponding to the workpiece W with the received light quantity signal to determine whether the workpiece W is heat-treated.