Patent ID: 7210322

Claim:
A method for simulating by a computer drawing a dent distribution diagram of a surface processed by a shotblasting process, comprising: a first inputting step for inputting a dent unit area, the number of dents, and an evaluation area to the computer; a first computing step for computing a dent rate from a theoretical formula C=100{1−exp(−A·N/As)}, based on the inputted dent unit area, said inputted number of dents, and the inputted evaluation area, where C is a dent rate (coverage) (%), A is a dent unit area (mm 2 ), N is the number of dents (piece·mm 2 ·sec), and As is an evaluation area (mm 2 ); a first calculating step for calculating, based on the inputted dent unit area, said inputted number of dents, and the inputted evaluation area, a drawing dent unit area, the number of dents to be drawn, and a drawing evaluation area, that are necessary to draw a dent distribution status by a drawing device; a second calculating step for performing calculations necessary to display in the drawing evaluation area a dent pattern of said number of dents to be drawn, each of said dents having the drawing dent unit area; and a step for displaying or printing by the drawing device the dent rate and the result of the calculations performed by the second calculating step.