Каталог Dormer Pramet фрезерование 2021 - 2022 - страница 312

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No. of passesNo. of passes 9 THREAD MILLS – NUMBER OF PASSES TABLE Recommended number of passes and radial depth of cut per pass for female BSP thread (55°). Radial depth of cut per pass [mm] 123 1" 28 19 14 11 1 0.225 0.271 0.318 0.362 2 0.186 0.224 0.263 0.299 3 0.170 0.205 0.241 0.274 4 – 0.156 0.185 0.210 5 – – 0.155 0.177 6 – – – 0.157 7 – – – – Acc. Depth 0.581 0.856 1.162 1.479 Recommended number of passes and radial depth of cut per pass for female NPT thread (60°). Radial depth of cut per pass [mm] 123 1" 27 18 14 11.5 1 0.283 0.348 0.390 0.423 2 0.233 0.287 0.322 0.349 3 0.214 0.263 0.295 0.320 4 – 0.202 0.226 0.246 5 – – 0.190 0.207 6 – – – 0.183 7 – – – – Acc. Depth 0.730 1.100 1.423 1.728 311