Machining condition search device and machining condition search method

A machining condition search device comprising:

• machining condition generation circuitry to generate a machining condition defined by one or more control parameters settable on a machining apparatus;
• practical machining command circuitry to cause the machining apparatus to perform machining based on a machining condition generated by the machining condition generation circuitry;
• machining evaluation circuitry to generate an evaluation value of performed machining, on a basis of information indicating a machining result of the performed machining;
• prediction circuitry to predict an evaluation value corresponding to a machining condition under which machining is not performed, on a basis of the evaluation value and the machining condition corresponding to the evaluation value;
• optimum machining condition calculation circuitry to obtain an optimum machining condition on a basis of a prediction value predicted by the prediction circuitry and an evaluation value generated by the machining evaluation circuitry, the optimum machining condition being a machining condition under which an evaluation value is equal to or greater than a threshold and a tolerance is maximum;
• uncertainty evaluation circuitry to calculate an index indicating uncertainty of prediction by the prediction circuitry;
• and
• search end determination circuitry to determine, on a basis of the index, whether to end a search for a machining condition, and, when determining not to end the search, to cause the machining condition generation circuitry to generate a new machining condition, wherein
• the evaluation value indicates that the larger the value, the better the machining result, and
• processes by the machining condition generation circuitry, the practical machining command circuitry, the machining evaluation circuitry, the prediction circuitry, the uncertainty evaluation circuitry, and the optimum machining condition calculation circuitry are repeated until the search end determination circuitry determines to end the search.