Общий каталог FANAR 2021 - страница 313

i Technical information Problem: Excessive wear of the cutting edge Excessive runout Use grip with better mounting precision Excessive feed Decrease feed Discontinuous cutting process Check coolant pressure Low rigidity of tool holding system Check rigidity of tool’s mount in the grip Problem: Chipping on cutting edge Excessive runout Use grip with better mounting precision Unstable cutting conditions Check cutting parameters Critical tool wear Change tool more often Too hard material Select tool suitable for workpiece material Problem: Wear on the lands Excessive runout Use grip with better mounting precision Low coolant pressure Use pure oil or emulsion with more oil content Too high cutting speed Decrease cutting speed Buildup formed by workpiece material Select tool suitable for workpiece material Problem: Wear of the chisel edge Too low cutting speed Increase cutting speed Excessive feed Decrease feed Too small chisel Check dimensions Problem: Plastic deformation Too high cutting speed Decrease cutting speed Excessive feed Decrease feed Poor coolant supply Check coolant pressure and setting of nozzles Too low rigidity of tool holding system Use VHM drill bit Problem: Abrasion of coating from the edge Too much friction Apply coolant with greater content of oil or additives Remove at an angle Decrease feeding speed at removal Buildup formed by workpiece material Reduce number of tool’s regenerations Problem: Chip block Too low cutting speed Increase cutting speed Excessive feed Decrease feed Too small chip flutes Select tool with proper geometry Poor rinsing off chips Apply internal cooling 12 310