Kyocera - Каталог Сверление 2013 ENG

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                                    Technical Information

                Drilling Troubleshooting

                                                                  Check Item                    Grade Selection Cutting Conditions     Tool Geometry      Setting         Machine

                                                                  Measures                      Changfe to Harder Grade
                                                                                                           Change to Tougher Grade
                                                                                                                                            Coolant Discharge ConditionVc f

Technical                                                                                                                                              Chipbreaker Review
   Information                                                                                                                                                     Inner Edge’s Center Height

                                                                                                                                                                       Check (Core Dia. Check)
                                                                                                                                                                                   Tool Rigidity Improvement (Short Type)

                                                                                                                                                                                              Workpiece / Tool Installation
                                                                                                                                                                                                         Insert Installation
                                                                                                                                                                                                                  Offset Check

                                                                                                                                                                                                                      (Lathe Operation Only)
                                                                                                                                                                                                                               Adjustable Sleeve Usage

                                                                                                                                                                                                                                          Power, Rigidity
                                    Trouble                       Trouble Item                     Higher (Larger)                    Larger 
                                                                                                   Lower (Smaller)                    Smaller 

                                                                  Unsuitable Cutting Speed                 
                                                                            (too high)              
Drilling
           Edge Damage              Unusual Wear                  Unsuitable Cutting Speed                           
                                                                             (too low)
                                                                                                                                                      
                                                                      Unsuitable Coolant                                                                                    
                                                                            Discharge

                                                                  Poor Rigidity of Machine /
                                                                           Workpiece

                                                                        Small Hole Dia.

                                                                  Unsuitable Tool Grade         

                                                                  No core, Too Small Core                                              
                                                                  Poor Rigidity of Machine /
                                                                                                                                                                        
                                                                            Workpiece
                                    Inner Edge Cracking              Unstable Drilling Start                 
                                                                                                                
                                                                  High Hardness Workpiece

                                                                  Clogged Chips                                                      

                                                                  Unstable Insert Installation                                                                           
                                                                  Poor Rigidity of Machine /                                                          

                                                                            Workpiece                           
                                                                     Unstable Drilling Start

                                    Outer Edge Cracking High Hardness Workpiece                    

                                                                  Poor Chip Control                 

                                    Scratches on Tool             Unstable Insert Installation                                                                   
                                            Body                  Poor Rigidity of Machine /                                                          

                                                                            Workpiece                                                                                       
                                                                  Inaccurate Tool Installment
                                                                                                    
                                                                         Clogged Chips

                                                                     Unstable Drilling Start                    
                                                                  Poor Rigidity of Machine /
                                                                                                                                                                         
                                                                            Workpiece                                                                 
                Toolholder, Others                                Poor Rigidity of Toolholder

                                      Poor Hole Dia.              Inaccurate Tool Installment                                                                       * 
                                    Accuracy / Surface                   Clogged Chips
                                                                         Large Core Dia.                                           
                                            Finish                                                                                     

                                                                  Unstable Drilling Start                      

                                                                    Unsuitable Coolant                               
                                                                          Discharge
                                    Large Chattering / Vibration                                                                                                    
                                           Long Chips                Unsuitable Cutting            
                                                                  Conditions, Installation
                                                                                                                                    
                                                                     Unsuitable Cutting
                                                                          Conditions

                                                                  Unsuitable Chipbreaker

                                    Machine Failure               Lack of Machine Power                                                                              

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