lõikesügus

Lõikesügus is the depth of cut, the amount of material removed by the cutting edge of a tool in a single pass. It is a key parameter in machining processes such as turning, milling and drilling, and it is typically expressed in millimeters. In turning, it refers to how far the tool penetrates radially into the workpiece; in milling, it describes how deeply the cutter engages the material.

The choice of lõikesügus depends on tool geometry, tool material and coating, workpiece material, machine rigidity and power, and other cutting parameters like cutting speed and feed rate. A larger depth of cut increases material removal per pass but also raises cutting forces, heat generation, and risks such as deflection, tool wear, and chatter. A smaller depth of cut reduces these risks and can improve surface finish and dimensional accuracy, but lowers production throughput.

In practice, engineers select a starting depth of cut based on manufacturer recommendations, tooling catalogs, or CAM presets, then adjust through testing and experience. The optimal depth balances productivity with tool life and part quality. The depth of cut is often coordinated with the feed per tooth and spindle speed to control overall cutting conditions and surface outcomes.

Lõikesügus is a fundamental concept across machining disciplines and is specified for each operation in technical documentation, tooling programs, and process planning.