Общий каталог Palbit - страница 171

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turningInsert selectionOverviewNegative insertsPositive insertsPCD insertsHeavy machiningExternal ToolholdersInternal ToolholdersAutomatic LathesSpare PartsTechnical Data turningInsert selectionOverviewNegative insertsPositive insertsPCD insertsHeavy machiningExternal ToolholdersInternal ToolholdersAutomatic LathesSpare PartsTechnical Data Positive turning insert shape selection C Application Range Overview | Vista geral de aplicações | Vista general de aplicaciones Selecção de geometria para pastilha | Selección de geometria para plaquita C Fine finishing Finishing Medium Roughing Heavy roughing Shape angle 90º 80º 80º 60º 55º 35º LN Geometryshape codeR S C W T D V N Geometryshape design Uncoated Grades 7º PH0910 Substrate(N01-N20) Cutting edgestrength+ Accessibility+ Continuous cut Interrupted cut VibrationFine finishingFinishingMediumRoughingHeavy roughingtendancy+ Less power-consumption FS FM LM MM Insert shape S BO FW MW The insert shape should be selected relative to the entering angle accessibility from tools requirements. The largest possible nose angle should be selected to provide insert strength and reliability, however, this has to be balanced against the cut varia- wiper wiper tion need to be performed. 5º & 7º PVD Grades A large nose angle is strong, but requires more machine power and has a higher tendency for vibration. A small nose angle is weaker and has a small cutting edge engagement, both of which can make it more sensitive to the heat effects. AlTiN AlTiN PH7910 Substrate PH7920 Substrate Scale 1: indicates the cutting edge strength. The inserts to the left have larger nose angles and are correspondingly stronger. The right hand inserts have better (S05-S10) (S10-S25) versatility and accessibility. Continuous cut Interrupted cut Scale 2: indicates that vibration tendencies increase to the left side, while power requirements decrease to the right. Chip-breaker Indication Nose Radius Indication C - 338 C- 339