Каталог Dormer Pramet фрезерование 2021 - 2022 - страница 310

Предыдущая страница Следующая страница

Навигация

9 THREAD MILLS – FEED PER TOOTH TABLE How to use this table to find the feed per tooth (fz): n 1. Find your Alpha Code on the product page (example: 181B, “B“ is the Alpha Code). 2. Select the column matching your cutter diameter in the top row of the fz table with the Thread pitch P or TPI (in the rows with icons on the left). 3. Find your Alpha Code in the left column of the table. 4. The intersection (cell) of the Diameter + Pitch column and Alpha Code is the feed per tooth (fz). Correction of the feed per tooth for multiple passes: 5. In case the thread is being machined in 2 passes the feed values mentioned in the table should be increased by 30 to 40%. 6. In case the thread is being machined in 3 passes the feed values mentioned in the table should be increased by 55 to 65%. 7. In case the thread is being machined in 4 passes the feed values mentionedin the table should be increased by 80 to 90%. Feed per tooth per revolution (fz in mm/rev). The specified values are the recommended starting values for machining the full thread depth in (Example: J2003.2X.7 machining WMG M4.1 with feed rate A in 4-passes the one pass. fz = 0.017×1.80 = 0.031 mm/z). ø DC [mm] 3.20 4.10 4.50 4.80 5.50 6.00 6.50 7.50 7.90 8.00 8.20 9.50 9.90 10.00 11.60 12.00 13.60 14.00 16.00 19.00 20.00 25.00 0.70 0.80 1.00 1.00 1.25 1.25 1.50 1.50 1.75 1.75 2.00 2.50 2.00 2.00 A 0.017 0.022 0.023 0.024 – 0.024 – 0.029 0.036 – – 0.040 0.044 0.047 0.053 – 0.056 0.068 – 0.071 – – – – – – – – B 0.022 0.029 0.031 0.032 – 0.032 – 0.038 0.048 – – 0.053 0.059 0.063 0.070 – 0.075 0.090 – 0.095 – – – – – – – – C 0.028 0.036 0.039 0.040 – 0.040 – 0.048 0.060 – – 0.066 0.074 0.079 0.088 – 0.094 0.113 – 0.119 – – – – – – – – 0.50 0.75 1.00 1.00 1.00 1.50 1.00 1.50 1.00 1.50 1.50 2.00 2.50 3.00 2.00 D – – – 0.044 – 0.041 0.036 – – – 0.057 – – – 0.075 0.067 0.079 0.071 – 0.083 0.071 0.092 0.081 0.073 0.067 0.096 – E – – – 0.058 – 0.055 0.048 – – – 0.076 – – – 0.100 0.089 – 0.105 0.094 – 0.110 0.095 0.122 0.108 0.097 0.089 0.128 – F – – – 0.073 – 0.069 0.060 – – – 0.095 – – – 0.125 0.111 – 0.131 0.118 – 0.138 0.119 0.153 0.135 0.121 0.111 0.160 – 123 20 18 16 14 13 12 11 10 1" G – – – 0.019 0.023 – – – 0.030 – 0.034 – – – 0.053 0.051 – 0.055 – – 0.066 – – – – – – – H – – – 0.025 0.030 – – – 0.040 – 0.045 – – – 0.071 0.068 – 0.073 – – 0.088 – – – – – – – I – – – 0.031 0.038 – – – 0.050 – 0.056 – – – 0.089 0.085 – 0.091 – – 0.110 – – – – – – – 123 28 24 20 18 16 1" J – – – 0.023 – 0.026 – – – – 0.041 – – – 0.062 – – – – – 0.083 – – – – – – – K – – – 0.030 – 0.035 – – – – 0.054 – – – 0.083 – – – – – 0.110 – – – – – – – L – – – 0.038 – 0.044 – – – – 0.068 – – – 0.104 – – – – – 0.138 – – – – – – – 123 28 19 19 14 14 11 1" M – – – – – 0.029 – – – – – – – – 0.064 – – – – – 0.080 – 0.083 – – – 0.116 0.131 N – – – – – 0.038 – – – – – – – – 0.085 – – – – – 0.106 – 0.111 – – – 0.155 0.175 O – – – – – 0.048 – – – – – – – – 0.106 – – – – – 0.133 – 0.139 – – – 0.194 0.219 123 27 18 14 11.5 1" Q – – – – – – – – – 0.039 – – – 0.044 – – – – – – 0.079 0.115 – – – – – – R – – – – – – – – – 0.052 – – – 0.059 – – – – – – 0.105 0.153 – – – – – – S – – – – – – – – – 0.065 – – – 0.074 – – – – – – 0.131 0.191 – – – – – – 309 Feed rates