Каталог Dormer Pramet фрезерование 2021 - 2022 - страница 310

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n

f

z

Feed per tooth per revolution (f in mm/rev). z The specified values are the recommended starting values for machining the full thread depth in one pass.

THREAD MILLS – FEED PER TOOTH TABLE

How to use this table to find the feed per tooth (f ): z 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 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%. (Example: J2003.2X.7 machining WMG M4.1 with feed rate A in 4-passes the fz = 0.017×1.80 = 0.031 mm/z).

ø DC [mm]
3.20 4.10 4.50 4.805.50 6.006.50 7.507.90 8.00 8.209.50 9.90 10.0011.60 12.0013.60 14.0016.0019.00 20.0025.00
0.70 0.80 1.00 1.001.251.25 1.501.501.75 1.75 2.002.50 2.002.00
A0.017 0.022 0.023 0.024–0.024–0.029 0.036– – 0.0400.044 0.047 0.053–0.056 0.068–0.071 –– –– – – ––
B0.022 0.029 0.031 0.032–0.032–0.038 0.048– – 0.0530.059 0.063 0.070–0.075 0.090–0.095 –– –– – – ––
C0.028 0.036 0.039 0.040–0.040–0.048 0.060– – 0.0660.074 0.079 0.088–0.094 0.113–0.119 –– –– – – ––
0.500.751.001.001.001.501.00 1.501.001.50 1.502.00 2.50 3.00 2.00
D– – – 0.044–0.0410.036– –– 0.057–– – 0.075 0.0670.079 0.071– 0.0830.071 0.0920.081 0.073 0.067 0.096–
E– – – 0.058–0.0550.048– –– 0.076–– – 0.100 0.089– 0.105 0.094– 0.1100.095 0.1220.108 0.097 0.089 0.128–
F– – – 0.073–0.0690.060– –– 0.095–– – 0.125 0.111– 0.131 0.118– 0.1380.119 0.1530.135 0.121 0.111 0.160–
1 2 3 1"2018161413121110
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 rates– – – 0.031 0.038 ––– 0.050– 0.056–– – 0.089 0.085– 0.091–– 0.110– –– – – ––
1 2 3 1" Feed2824201816
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– –– – – ––
1 2 3 1"281919141411
M– – – ––0.029–– –– ––– – 0.064–– ––– 0.080– 0.083– – – 0.1160.131
N– – – ––0.038–– –– ––– – 0.085–– ––– 0.106– 0.111– – – 0.1550.175
O– – – ––0.048–– –– ––– – 0.106–– ––– 0.133– 0.139– – – 0.1940.219
1 2 3 1"27181411.5
Q– – – ––––– –0.039 ––– 0.044 ––– ––– 0.0790.115 –– – – ––
R– – – ––––– –0.052 ––– 0.059 ––– ––– 0.1050.153 –– – – ––
S– – – ––––– –0.065 ––– 0.074 ––– ––– 0.1310.191 –– – – ––