2010 Full-Line Drill Catalog - Desanto

Advantages and application of PCD and CBN toolsPowerful and economicalTools with PCD and CBN cutting edgesare the ideal solution for difficult-tomachine, highly abrasive materials.These tools achieve highest qualityand economic efficiency. The result:Long tool life, highest surface quality,optimal process reliability and repeatability.PCD and CBN ToolsHowever, in order to take full advantageof their performance potential,the customer’s production must fulfilcertain minimum requirements. Thisincludes applying the tools on rigidand vibration-free machines as well ashighly accurate spindle bearings or slideways respectively.CFK, is probably the most suitablefuture material applied in the aircraftindustry thanks to its high rigidity andlow weight. A consequence of this developmentis the difficult characteristicsfor machining. The abrasive wearleads to a visible rounding of carbidecutting edges within a short time (fig.2). This results in the fibres no longerbeing cut but squashed and thenbeing ripped from the laminate (delamination).Fig. 1: PCD-toolConvincing, wear-resistant diamond cutting edgeThe range of application of our PCDtools begins with applications thathave highest demands on surface quality.PCD-tools do not display the typicalinitial wear (fig. 1), but guaranteeno delamination tendencies during themachining process thanks to the extremelyresilient diamond cutting edge.Fig. 2: CarbideVisible rounding of cutting edge after a short timeSatisfying highest demandsPCD is especially suitable for thedrilling, milling and reaming of nonferrousmaterials, light and heavy metals,fibre-reinforced plastics, ceramicsas well as synthetic glass.CBN is especially efficient for the machiningof hardened steels and pearliticcast materials.These materials are currently specificallyapplied in the automotive andaerospace industry as well as the machinetool industry.244