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CUTTING INSERT AND TOOL FOR MILLING AND RAMPING AT HIGH FEED RATES
CUTTING INSERT AND TOOL FOR MILLING AND RAMPING AT HIGH FEED RATES
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机译:切削刀片和刀具以实现高进给率的铣削和粗加工
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摘要
A cutting insert having a pentagonal prismatic shape. A cutting region is associated with each polygonal side and is elevated with respect to a central tangential abutment surface. A primary cutting edge associated with a polygonal side is formed at the intersection of a primary rake surface and a primary relief surface. A secondary cutting edge associated with a rounded corner is formed at the intersection of a secondary rake surface and a secondary relief surface and merges with the primary cutting edge. The primary relief surface forms with the associated side abutment surface a primary relief surface angle that varies from a maximal value adjacent an upper end of the primary cutting edge to a minimal value. The secondary relief surface forms with the associated rounded corner a secondary relief surface angle that varies from a maximal value adjacent the primary cutting edge to a minimal value.
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