Before starting the machine, check the protective device of the machine and the reset switch of various movements, to see whether it is adjusted in place firmly.

The test uses a certain type of aero engine titanium alloy integral disc, as shown in Figure 14. The precision milling process has been completed before the abrasive belt grinding.

In the grinding of the blade surface of the whole blade disc, the thickness of the thinnest part of the blade is less than 1 mm, which is a typical thin-walled weak rigid part. At the same time, due to the narrow channel between the blades of the whole blade disc, it is difficult to design a tooling fixture that balances the grinding positive pressure for the grinding object, so that the workpiece undergoes weak rigid bending deformation of the ground part under the action of the grinding positive pressure.

The grinding process of the abrasive belt on the blade surface of the integral blade disk is shown in Figure 2: The contact rod of the grinding head forms a constant angle φ with the surface of the workpiece, and the contact wheel supports the abrasive belt and clings to the integral blade under the action of the grinding contact pressure Fa The disc blade profile; the belt drive roller drives the belt at a constant linear speed vs. at the same time, the grinding head performs a feed motion at a speed vf to realize the grinding of the belt on the blade surface.

PCB is printed circuit board, short for printed board, is one of the basic components of the electronic industry. PCB is used in almost all electronic devices, from   electronic watches and calculators to computers, communication electronic devices and military weapon systems. As long as there are integrated circuits and other electronic components, PCB should be used in order to make the electrical interconnection between each component.

The use of a disc-shaped modular milling cutter or a finger milling cutter to mill teeth belongs to the forming method. The cross-sectional shape of the milling cutter teeth corresponds to the shape of the gear teeth. This method has low processing efficiency and processing accuracy, and is only suitable for single-piece small batch production.

The key factors that can maximize the grinding performance of grinding wheels are good shaping and sharpening tools (commonly known as dressing) and skilled dressing skills. In fact, an operator with a high quality dressing tool and a good knowledge of dressing the grinding wheel can always maintain a high grinding performance of the wheel. Instead of just buying the so-called good grinding wheel. This is very important because the workshop cannot be equipped with special grinding wheels for everyone.

A single point dresser is formed by placing a diamond rough or shaped diamond on the tip of a metal handle.

Grinding processing is a processing method that removes excess layers on the surface of the workpiece by means of the cutting effect of the abrasive tool, so that the surface quality of the workpiece reaches predetermined requirements.