Technology of reaming,1,Focus Training Aluminium-Bearbeitung Dihart AG Przisionswerkzeuge Dulliken 02/2003 Entwicklung / RE,Fine tooling of bores,Definition Fine tooling of bores is every kind of Cutting Forming Wash Machining to get ISO IT quality of a bore with IT 9 or better.,2,Focus Training Aluminium-Bearbeitung Dihart AG Przisionswerkzeuge Dulliken 02/2003 Entwicklung / RE,Methods for Micro Finishing of Bores,3,Focus Training Aluminium-Bearbeitung Dihart AG Przisionswerkzeuge Dulliken 02/2003 Entwicklung / RE,Range of Application: Drilling, Countersinking, Reaming,4,Focus Training Aluminium-Bearbeitung Dihart AG Przisionswerkzeuge Dulliken 02/2003 Entwicklung / RE,Process- and Machine capability reached if:,1. Process capability: Cpk1,33,2. Machine capability: Cmk1,67,To realize process capability the deviations must be below 1/3 of tolerance range.,Process capability Machine capability,5,Focus Training Aluminium-Bearbeitung Dihart AG Przisionswerkzeuge Dulliken 02/2003 Entwicklung / RE,Single blade,Multi blade,Comparison: Turning vs. Reaming,unstable,f = Feed FR = Radial Force,FR,FR,f,f,6,Focus Training Aluminium-Bearbeitung Dihart AG Przisionswerkzeuge Dulliken 02/2003 Entwicklung / RE,10,100,500,0.50,1.00,1.50,0.10,0.20,0.30,0.40,Cutting speed vc m/min,Stock allowance in mm,Feed rate per tooth fz mm,Dihart Reaming Technology,Conv. Reaming,High Speed - Reaming High Performance Reaming,7,Focus Training Aluminium-Bearbeitung Dihart AG Przisionswerkzeuge Dulliken 02/2003 Entwicklung / RE,Conditions for High Speed Cutting,Spindle,Tool,Workpiece,Stable Machine and Tool Variable Cutting Data Inner Coolant Supply Run out of Tool Exact Alignment of System,8,Focus Training Aluminium-Bearbeitung Dihart AG Przisionswerkzeuge Dulliken 02/2003 Entwicklung / RE,Influence of bore quality and tool life,Tool Geometry Tolerance range Run out Cutting data Coolant Tool Wear Material,Tool Geometry Unequal pitch Run out Workpiece Fixing of the Part Alignment Tool-Part Stock Allowance Feed rate Tool Wear,Geometry Cutting Data Cutting Material Coating Stock Allowance Chip Flow/Control Coolant Material Tool Wear/Life,Measure,Form and Position,Surface Finish,9,Focus Training Aluminium-Bearbeitung Dihart AG Przisionswerkzeuge Dulliken 02/2003 Entwicklung / RE,Feed f mm/U,Surface Roughness as a Function of Feedrate and Bevel Angel,Roughness Ra m,ASG01 45,ASG02 45/8,ASG04 30/4,10,Focus Training Aluminium-Bearbeitung Dihart AG Przisionswerkzeuge Dulliken 02/2003 Entwicklung / RE,Roughness Ra,Correct,Increased,Influence of the Cutting Speed,Build-up Edge,Tool Cutting Edge,11,Focus Training Aluminium-Bearbeitung Dihart AG Przisionswerkzeuge Dulliken 02/2003 Entwicklung / RE,Roughness as a Function of Cutting Speed in using different material,Lead Alloyed Free Cutting Steel 9MnSPb28,Grey Cast Iron GG25,Steel Ck45,Roughness Ra um,Cutting Speed vc m/min,Conventional Reaming,12,Focus Training Aluminium-Bearbeitung Dihart AG Przisionswerkzeuge Dulliken 02/2003 Entwicklung / RE,Structural Steel: Conventional reaming High Speed Reaming,Cutting Speed vc m/min,Roughness Ra m,Roughness as a Function of Cutting Speed,13,Focus Training Aluminium-Bearbeitung Dihart AG Przisionswerkzeuge Dulliken 02/2003 Entwicklung / RE,Roughness as a Function of Feedrate,14,Focus Training Aluminium-Bearbeitung Dihart AG Przisionswerkzeuge Dulliken 02/2003 Entwicklung / RE,c,l,Chip direction,Chip flow / Chip break,ASG09B,15,Focus Training Aluminium-Bearbeitung Dihart AG Przisionswerkzeuge Dulliken 02/2003 Entwicklung / RE,Influence of wear for reaming,Bore- / Roughness,Wear,Demanded Roughness,Lower Diameter Limit,16,Focus Training Aluminium-Bearbeitung Dihart AG Przisionswerkzeuge Dulliken 02/2003 Entwicklung / RE,Dihart Cutting Material and Coatings,17,Focus Training Aluminium-Bearbeitung Dihart AG Przisionswerkzeuge Dulliken 02/2003 Entwicklung / RE,Quality of Dihart Coatings,18,Focus Training Aluminium-Bearbeitung Dihart AG Przisionswerkzeuge Dulliken 02/2003 Entwicklung / RE,Roughness as a Function of Cutting Speed in DST,Roughness Ra m,Cutting Speed vc m/min,19,Focus Training Aluminium-Bearbeitung Dihart AG Przisionswerkzeuge Dulliken 02/2003 Entwicklung / RE,Roughness Ra m,Cutting Speed vc m/min,Roughness as a Function of Cutting Speed in DBG-Coating,20,Focus Training Aluminium-Bearbeitung Dihart AG Przisionswerkzeuge Dulliken 02/2003 Entwicklung / RE,Machining of Cast Iron,Increase of Wear,Surfacequality,small,large,bad,Cast Iron Ferritic,Conv. Reaming High Speed Reaming,Cast Iron pearlitic,Conv. Reaming High Speed Reaming,GGV,High Speed Reaming,without Ti,with Ti,good,21,Focus Training Aluminium-Bearbeitung Dihart AG Przisionswerkzeuge Dulliken 02/2003 Entwicklung / RE,Roughness as a Function of Microstructure,Pearlitic Microstructure = Ra = 0,31 m = Rz = 2,50 m,Pearlitic/ Ferritic Microstructure = Ra = 0,36 m = Rz = 3,40 m,Ferritic Microstructure = Ra = 1,53 m = Rz = 8,70 m,22,Focus Training Aluminium-Bearbeitung Dihart AG Przisio