Page 32 - THREADING CATALOG
P. 32

USER GUIDE
      THREAD TURNING         production of right-hand threading    Thread Turning Method  production of left-had threading









                                                                               with right-hand holder*
                                 with left-hand holder*
                             LH


                                                         LH
                                                              or

                                                                                RH                        RH


                 * Change  anvil to negative                      * Change  anvil to negative
                                                          Anvil Selection
                                                                       Negative Anvils
                        Threading helix (lead) angle φ (φ L)  0º<φ (φ L)≤1º       1º<φ (φ L)≤2º     φ (φ L)≥2º
                              Inclination Angle β                -0.5º              -1.5º
                          lC               Toolholder                        Anvil Designation
                          16             EX RH OR IN LH        AE 16-0.5           AE 16-1.5      special solution
                         (3/8)           EX RH OR IN LH        AI 16-0.5           AI 16-1.5
                          22             EX RH OR IN LH        AE 22-0.5           AE 22-1.5
                         (1/2)           EX RH OR IN LH        AI 22-0.5           AI 22-1.5
                          27             EX RH OR IN LH        AE 27-0.5           AE 27-1.5
                         (5/8)           EX RH OR IN LH        AI 27-0.5           AI 27-1.5
                         22U             EX RH OR IN LH       AE 22U-0.5          AE22U-1.5
                         (1/2U)          EX RH OR IN LH        AI 22U-0.5         AI 22U-1.5
                         27U             EX RH OR IN LH       AE 27U-0.5          AE 27U-1.5
                         (5/8U)          EX RH OR IN LH        AI 27U-0.5         AI 27U-1.5

               •  EX - anvil for external threading
               •  IN - anvil for internal threading

                                                          Negative Anvils

                                                    Feed Towards the Tailstock

                                                    -φ (φ L)
                                                                          −β°





                                                  1.5°
                                                 const.




















            ISCAR
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