Aviation difficult machining materials and parts cutting technology is a complex system engineering, then how to properly configure aviation typical parts processing tools?
In the selection of the tool, a new type of high-efficiency tool that matches the mechanical properties, chemical properties and physical properties of the machined part should be reasonably selected. Continuously optimize tool geometry and optimize cutting volume. It is necessary to improve the metal removal rate, achieve high-efficiency cutting, and ensure a reasonable tool life and improve the processing quality of parts.

The aviation parts adopt the machine clamp indexable tool and the multi-function composite tool to realize the serialization, standardization and generalization of the tool. A modular tooling system is available to meet the cutting requirements, ie the same cutting tool and tool holder can be used for different machine tools and applications, and tools of various lengths and structural features can be assembled in a variety of ways. At the same time, the same system can be installed on a variety of machines in different ways. For example, the corn milling cutter can realize high-speed machining; the ceramic cutting tool is more than 4 times of the same type of cemented carbide tool in the same time, which can reduce the tool cost. In addition, the use of the plunge milling method can effectively improve the processing efficiency.

It is important to choose the right tool for the actual machining in the field. For example, when machining the fan casing (see Figure 3), the circular blade can be used to complete the radial and axial cavity machining according to the material and structural characteristics of the part; with the 80Â° diamond blade, it can be effectively operated in a confined space. Cutting.

The tool must be passivated and wiped to reduce cutting vibration and improve processing quality. It is necessary to ensure the sharpness of the tool, reduce the cutting heat generated during the machining process, and ensure the safety of the machining. The new unequal-cut cutting edge solid carbide milling cutter has a strong damping function. As the cutting speed increases, the effect of the small unbalance of the shank is amplified and an advanced dynamic balancing shank is required.

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