Page 90 - Turning_catalog_INCH_2022_45_P509-690
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PARTING  PARTING                                                                         USER GUIDE






             General Rules for Specific Applications
                            Chamfer and Cut-Off                Clamping / Extraction Instructions
                    1              2             3             The tools are equipped with a user-friendly
                                                               clamping and extraction device
                                                                        Extraction Side



                Break in and/   Chamfer        Cut-off
                 or groove

                           V-Belt Pulley Grooves                        Insertion Side
                                                               ETG 8-12 Extractor for .315” to .500” Inserts
                    1              2             3
                                                                      Extracting            Clamping



                  Break in    Multiple plunge   Bevel, plunge
                             to depth at minor   and turn to
                              width of groove  minor diameter
                                                                               The flat side of the
                             Neck Recessing                                    pin must face up
                           1                     2

                                               a



                                                               ETG 1.4 (for .055” tools)
                   Multiple plunge grooves   Necking On        ETG 3-4 (for .118” and .157” tools)
                                             neck turning,
                                            DOC (a)=up to
                                             size of insert           Extracting            Clamping
                                             corner radius
             Cut-Off on Eccentric Tubes
             Inserts with 4º lead angle are usually recommended
             for tubes. However, the combination of eccentric bore
             and machine resiliency may increase feed-snap on
             breakthrough and damage the cutting edge. Changing   ETG 2 (for .079” tools)
             to 6º lead angle inserts will moderate breakthrough.   ETG 5-7 (for .197-.276” tools)
             Alternatively, inserts with an extra negative rake-land that
             strengthens the cutting edge are available on request.

























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