SMALL Engineering Mechanics/Study8 Requirements for Cutting Tool Materials 1. High-temperature hardness Cutting tools are exposed to high temperatures during machining, so they must maintain their hardness at high temperatures. Materials with low high-temperature hardness will wear more easily during machining, shortening the tool life. 2. Toughness Cutting tools are exposed to shock and vibration during machining, so they must be tough. Materials with low toughness ca.. 2024. 1. 25. Functions of Cutting Fluids Cutting fluids are lubricants used in metalworking to reduce friction between the tool and workpiece, prevent tool wear, and protect the workpiece surface. Cutting fluids have the following functions: 1. Cooling Cutting fluids absorb heat generated by friction between the tool and workpiece, thereby lowering the temperature of the tool and workpiece. High temperatures can accelerate tool wear an.. 2024. 1. 24. High-Frequency Hardening High-frequency hardening is a method of hardening the surface layer of a metal material using high-frequency current. High-frequency current generates eddy currents on the surface of the metal material, and these eddy currents generate heat to heat the surface layer of the metal material. The heated surface layer of the metal material is hardened as it cools rapidly. High-frequency hardening has.. 2024. 1. 23. GT(group technology) Basic Concepts, Design Techniques, and Design Based on Similarity GT Basic Concepts GT is a technique that groups parts with similar shapes, dimensions, and machining methods to rationalize process design. By using the appropriate machines and tools for each group, it can reduce the preparation time of work, the transportation time between processes, and the waiting time for machining. It can also increase the processing quantity compared to when it is produce.. 2024. 1. 15. 이전 1 2 다음 728x90