2014-Полный каталог по сверлам EN

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TROUBLE SHOOTING FOR DRILLING

y DRILLING                                             Cutting Conditions                                                                         Machine,
                                                                                               Style and Design of the Tool Installation of Tool
                       Solution
                                                    Cutting Speed
                                                          Feed             Coolant
                                                                 Lower feed at initial cutting
                                                                      Lower feed when breaking
                                                                         through
                                                                               Step feed
                                                                                     Increase oil ratio
                                                                                            Increase volume
                                                                                                 Increase coolant
                                                                                                    pressure
                                                                                                         Point Angle
                                                                                                                Flank Angle
                                                                                                                       Back Taper
                                                                                                                             Land Width
                                                                                                                                    Honing Width
                                                                                                                                           Core Thickness
                                                                                                                                                  Body Diameter
                                                                                                                                                       Groove Length
                                                                                                                                                          (Overhang)
                                                                                                                                                                Tool installation accuracy
                                                                                                                                                                      Shorten tool overhang
                                                                                                                                                                             Flat workpiece face
                                                                                                                                                                                    Workpiece installed securely
                                                                                                                                                                                           Machine Stability, Rigidity
                        Trouble                   Up                                                       Up
                                                Down                                                     Down

Damage on               aDrill Breakage                a                                                             a                      aaa                                                                         DRILLING TROUBLE SHOOTING FOR DRILLING
  the Body                                             a                                                             a              aa
                        aAbnormal Scratches                                                                          a
                          on the Body                          a                                    aaa                                                       a
                                                                                                                                            a
                        aChisel Edge Fracture
                                                                                                                                                     aa
                        aShoulder Fracture                              a

Damage at Cutting Edge  a Chipping                     a                   a
                                                                                   aa
                        aThermal Crack              aa

                        aFlaking along land                                        a                a

                        aAbnormal Wear              a                              aa                                         a     a
                          along land                a                              aa                                a
Chip                                                aa                     a aa
                        aAbnormal Wear              aa
                          at Centre                                                         a

                        aChip Jamming

                        aLong Chips

                        aChip Discoloration a                              a

                        aLarge Over Size                             a                         a              aa                    aa
                                                    aaa
Hole Accuracy           aPoor Surface                                      a aa                                                         a
                          Roughness

                        aPoor Roundness             a     a                                    aa a aa

                        aBent, not Vertical               aa                                                    aa                  a aa
                                                                                               aa                                                    aaaa
                        a Burring                      aa
                                                                                                                                 a
Others                  aChattering, Vibration         a                                                        aa

                        aAbnormal Noise             a

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