GUHRING - Резьбофрезы - 2015 EN

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Drilling Parameters for DTMC Thread Mills

      Material Group                 Hardness  SFM   #10     Feed Rate Inch per tooth   5/8
Al wrought alloys                  Rc Brn            0.002    1/4 3/8 1/2              0.01
Al cast alloys                                 750   0.002                             0.01
                                     - 30-80    500  0.002   0.004  0.006  0.008       0.016
Cast iron                            - 75-150   600  0.002                             0.012
                                     - n/a      450  0.002   0.004  0.006  0.008       0.01
Brass,                               - n/a     400   0.002                             0.008
Plastics, Carbon/glass reinforced    - <180     320  0.002   0.006  0.009  0.012       0.008
Magnesium-alloys                   <25 <250     300  0.002                             0.016
                                   <35 <320    600   0.002   0.004  0.007  0.01        0.01
                                     - <180     600
                                     - <180          0.002   0.004  0.006  0.008       0.016
                                               500
                                     -               0.002   0.003  0.004  0.006       0.016

                                                             0.003  0.004  0.006

                                                             0.006 0.01 0.012

                                                             0.004  0.006  0.008

                                                             0.006  0.009  0.012

                                   - 750                     0.006  0.009  0.012

                                                                                                  Technical

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