6533b872fe1ef96bd12d4239

RESEARCH PRODUCT

Chip Formation and Control

Wit Grzesik

subject

0301 basic medicineEngineeringMaterials sciencebusiness.industryChip formationFlow (psychology)Mechanical engineeringFracture mechanicsStructural engineeringManufacturing systemsChip03 medical and health sciences030104 developmental biology0302 clinical medicineMachiningEmbedded system030220 oncology & carcinogenesisShear anglebusinessBrittle fractureComputingMethodologies_COMPUTERGRAPHICS

description

This chapter provides comprehensive engineering knowledge and modelling techniques applied in description of chip formation in the cutting zone and its separation from the bulk material, flow, and final breaking. Possible classification systems, including different chip shapes and physical mechanisms of their formation, are specified. The mechanisms of brittle fracture-based and shear-type chips are characterized in terms of plastic deformation and fracture mechanics. The models of the shear angle using different mechanical approaches are discussed. In addition, representative examples of FEM simulations of different types of chips for turning and milling operations are presented. Formulas for predicting chip flow when using both flat and grooved cutting inserts are provided. Real machining problems with effective chip breaking are outlined and appropriate practical recommendations in the form of chip-breaking charts are given. The concept of a total chip control in automated manufacturing systems is highlighted.

https://doi.org/10.1016/b978-0-444-63711-6.00007-7