10 N e w i n t h e P F ER D P r o d u c t L i n e 2 0 2 T C B u r s P L A S T C u t PLAST with Special End Cut BS The stur dily designed end cut BS is particularly suitable for use on machines and r obots T ungsten carbide burs with the PLAST cut ar e perfect for combined drilling and cutting tasks particularly on less har d glass and carbonfbr e r einfor ced dur oplastics GRP and CFRP 40 fbr e content The straight cut similar to PKD milling tools minimizes delamination and fraying Also highly suitable for machine and r obot use Advantages The special tooth geometry makes high feed speed rates possible at very low cutting for ces particularly on less har d glass and carbonfbr e r einfor ced dur oplastics GRP and CFRP 40 fbr e content The combination of end cut or centr e drill with the PLAST cut allows drilling and milling work to be carried out in one work step Application Examples T rimming Contour milling Pr oduction of cutouts Deburring Recommendations for Use If chatter and vibration occurs during opera tion the bur may br eak and the workpiece may become damaged A void this by ensuring that the bur diameter is always gr eater than the thickness of the workpiece Note If the tool tends to shudder the speed must be incr eased If the workpiece begins to melt the speed must be r educed as well as the contact pr essur e i f appr opriate PLAST cut T o determine the r ecommended cutting speed SFPM please pr oceed as follows Select the material gr oup that is to be machined Determine the type of application Select the cut Establish the cutting speed range T o determine the r ecommended r otational speed RPM please pr oceed as follows Select the r equir ed bur diameter The cutting speed range and the bur diameter determine the r ecommended r ota tional speed range RPM Recommended Rotational Speed Range RPM Material Gr oups Application Cut Cutting Speed Plastics and other materials Fibr er einfor ced plastics GRPCRP fbr e content 40 thermoplastics Coarse machining high stock r emoval PLAST 1600 3000 SFPM Fine machining low stock r emoval Example Burr PLAST Cut Diameter 516 Coarse machining of plastics Cutting Speed 1600 3000 SFPM Rotational Speed 20000 36000 RPM Cutting Speed SFPM Dia Inches 1600 3000 R o t a t io n al Sp e e d R P M 14 27000 48000 516 20000 36000 PLAST with Center Drill ZBS The bur version with the centr e drill ZBS has been particularly developed for manual use The special geometry of the centr e drill makes the safe milling of even concave or convex surfaces possible PLAST Cut