PROBLEM TO BE SOLVED: To provide a load setting device, a scratch device, a load setting method, and a scratch method capable of appropriately setting a cutting load of a cutter knife to a specimen for obtaining cutting depth when scoring a cutting scratch having a predetermined cutting depth to a metal foundation of the specimen by the cutting knife.;SOLUTION: A load setting device 120 sets a cutting load of a cutter knife CN to a specimen S by a computer, and includes an acquisition part 121 for acquiring a cutting depth (h) of a cutting scratch CL from a metal foundation surface of the specimen S, a Vickers hardness Hv of the metal foundation of the specimen S, and a shape of the cutter knife CN, a computation part 122 for calculating a cutting load F of the cutter knife CN from a predetermined expression, on the basis of the acquired information, and a setting part 123 for setting the calculated cutting load F of the cutter knife CN to a cutting load of the cutter knife CN.;SELECTED DRAWING: Figure 9;COPYRIGHT: (C)2019,JPO&INPIT
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