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在加工英制内螺纹时,其内径尺寸需查手册,甚感不便。现推荐简便计算公式:d_1=25.4d_0-(32.523)/n式中:d_1 内径(mm);d_0——公称直径(in);n——每英寸的螺
In the processing of inch internal thread, the diameter size of the manual to be investigated, very inconvenient. Now recommend a simple calculation formula: d_1 = 25.4d_0- (32.523) / n Where: d_1 inner diameter (mm); d_0-- nominal diameter (in); n-- screw per inch