How to prolong the life of a tungsten steel milling cutter?
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How to prolong the life of a tungsten steel milling cutter?
Tungsten steel milling cutter is a kind of tool made of tungsten steel (tungsten carbide, also known as a tungsten-titanium alloy) Do you know the production techniques of tungsten steel milling cutters? Generally, it is mainly used for CNC machining centers and CNC engraving machines. It can also be installed on an ordinary milling machine to process some harder and less complex heat-treated materials. Carbide end mill bit is widely used for high-speed processing.
The shape of the tip with high strength, the number of flutes, and the shape of high rigidity are more effective for high-hardness materials. It is more important for tungsten steel milling to select excellent coatings such as high-temperature resistance and heat resistance. Due to the advantages of high coating hardness and high oxidation temperature, it has excellent tool wear resistance. At the same time, it is effective to use a thermal expansion tool holder with high clamping force. So far, thermal expansion tool holders have been used in many cases because of their high runout accuracy and finishing. It has a strong clamping force and is not prone to chattering. It is also widely used in rough machining and tungsten steel milling that is prone to chipping can also achieve stable machining.
If the cemented milling tool is abnormally worn or sharply worn due to chipping, it is necessary to select the tool and modify the cutting conditions. In order to improve the strength of the blade, it is effective to use a negative rake angle shape, and at the same time choose a small, ultra-superfine cemented carbide material with high hardness. The correction of the cutting conditions is not to reduce the feed speed significantly, but to reduce the cutting amount first. In order to maintain the wear resistance of cutter bits and achieve a good machined surface, it is more advantageous (important) to choose a high cutting speed than a low speed. The cutting amount is lowered so that stable processing can be achieved in the high-speed area.
The service life of milling cutters is related to factors such as geometric angle, cutting force, cutting heat, and cutting consumption. Therefore, it is very important to master the durability of end mill bits. Only by improving the durability of the tools can its service life be prolonged and give full play to its role.
In order to improve the service life of tungsten carbide end mills, the following aspects should be paid attention to:
(1) Reasonably choose the cutting amount. The cutting amount affects the durability of the tungsten milling cutter. If the cutting depth and feed rate are too large, the cutting force will increase, the milling cutter will wear quickly, and the cutting speed will be too high. Therefore, choosing a reasonable cutting amount can also extend the tool's service life.
(2) Improve the geometric angle of the milling cutter. The angle and shape affect the change of cutting force. As the front angle increases, the chip deformation is small, the cutting is brisk, and the cutting force and cutting heat decrease. On the premise of ensuring that the cutter bit has sufficient strength, the rake angle should be as large as possible. When the entering angle is reduced, the length of the cutting edge to participate in the cutting increases, so that the cutting heat is relatively dispersed, and the nose angle increases, which can make cutting Temperature drop.
(3) Grasp and adjust the best cutting conditions, set and maintain good cutting conditions. Understand the cutting status of accessories through vibration analysis, etc., and make adjustments in time, so that the end mill bit has a good working environment. Once the tool is replaced, the size must be adjusted to ensure proper fastener conditions and cutting conditions.
(4) Reasonably choose the material of the milling cutter. The workpiece material and processing conditions have a great influence on the cutting performance of tungsten steel milling cutters. To process different materials, you must know how to choose different tools to meet the requirements of cutting
Okay, above are all the information for prolonging the tool's service life, hope it can well serve your operation. Any further concern, please feel free to contact Melody from Our carbide!
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