560 Каталог SUMITOMO 2018 Инструмент металлорежущий Пластины Резцы Фрезы Сверла Стр.N4

Каталог SUMITOMO 2018 Инструмент металлорежущий Стр. N4 0560 Lab2u

Technical Guidance Technical Guidance Tool Failure and Remedies Trouble Shooting Guide for Turning Damage Cause Countermeasures Excessive flank wear - Grade lacks wear resistance. Cutting speed ist too fast. Feed rate ist far too slow. Select a wear resistant grade. P30 A P20 A P10 K20 A K10 A K01 Use an insert with a larger rake angle. Decrease the cutting speed. Increase feed rates. Excessive crater wear Grade lacks crater wear resistance. Rake angle is too small. Cutting speed is too fast. Feed rate and depth of cut are too large. - Select a more crater-resistant grade. Use an insert with a larger rake angle. Select an appropriate chipbreaker. Decrease the cutting speed. Decrease the D.O.C. and feed rate. Cutting edge chipping - Grade lacks toughness. - Insert falls off due to chip build-up. - Cutting edge lacks toughness. Feed rate and depth of cut are too large. Change to tougher grades. P10 A P20 A P30 K01 A K10 A K20 Increase amount of honing on cutting edge. Reduce rake angle. Reduce feed rates and depth of cut. Cutting edge fracture e g T3 LU - Grades lacks toughness. - Cutting edge lacks toughness. - Holder lacks toughness. - Feed rarte is too fast. - Depth of cut is too large. - Change to tougher grades. P10 A P20 A P30 K01 A K10 A K20 - Select a chipbreaker with a strong cutting edge. - Select a holder with a larger approach angle. - Select a holder with a larger shank size. - Decrease the D.O.C. and feed rate. Build-up edge Inappropriate grade selection. - Dull cutting edge. Cutting speed is too slow. Feed rate ist too slow. Select a grade with less affinity to the work material. Coated carbide or cermet grades. Select a grade with a smooth coating. Use an insert with a larger rake angle. Reduce amount of honing. Increase cutting speeds. Increase feed rates. Plastic deformation - Grade lacks thermal resistance. - Cutting speed is too fast. - Feed rate is too fast. - Depth of cut is too large. - Not enough cutting fluid. - Select a more crater-wear-resistant grade. - Use an insert with a larger rake angle. - Decrease the cutting speed. - Reduce feed rates and depth of cut. - Supply a sufficient amount of coolant. Notch wear - Grade lacks wear resistance. Rake angle is too small. Cutting speed is too fast. Select a wear resistant grade. P30 A P20 A P10 K20 A K10 A K01 Use an insert with a larger rake angle. Alter depth of cutto shift the notch location. N4