Каталог Guhring сверла со сменными пластинами - страница 37

Troubleshooting

12 tips to help diagnose problems

• feed too high
• reduce feed
• excessive honing of cutting lip
• reduce cutting lip honing

Crumbling at intersection, clearance angle too small increase clearance angle

web thinning and cutting lip

• excessive honing of cutting lip
• reduce cutting lip honing
• incorrect tool type
• apply suitable tool

Plastic deformation of outer cutting speed too high reduce cutting speed

corner

• insufficient coolant volume
• increase volume/pressure
• incorrect or no honing at corner
• correct honing

Misalignment non rigid conditions, insufficient workpiece rigid clamping of workpiece

clamping

• deviation from concentricity too large
• check and correct concentricity if possible
• spotting area transverse
• use milling cutter (2-fluted) for spotting
• chisel edge too large
• reduce chisel edge

Heavy burring on break- feed too high reduce feed

through

• max. wear values exceeded
• reduce tool change intervals
• excessive honing of cutting lip
• reduce cutting lip honing

Unsatisfactory surface quality non rigid conditions, insufficient workpiece rigid clamping of workpiece

clamping

• deviation from concentricity too large
• check and correct concentricity if possible
• insufficient coolant volume
• increase volume/pressure