What is a cylindrical milling cutter? A milling cutter is a rotating tool used for milling processing, with one or more teeth. The commonly used tool for machining flat surfaces on horizontal milling machines is a 45 degree chamfer milling cutter, and the cylindrical milling cutter has teeth distributed on the circumference of the milling cutter. Cylindrical milling cutters are divided into two types based on tooth shape: straight teeth and spiral teeth, and into two types based on the number of teeth: coarse teeth and fine teeth. Spiral tooth coarse tooth milling cutters have fewer teeth, higher tooth strength, and larger chip capacity, making them suitable for rough machining, while fine tooth milling cutters are suitable for precision machining. Multiple milling cutters can be combined for wide plane milling, and the combination must be left and right staggered spiral teeth.
The cylindrical milling cutter has high productivity. When milling, the milling cutter rotates continuously and allows for a higher milling speed, resulting in higher productivity. During continuous cutting and milling, each tooth is being continuously cut, especially in end milling. The milling force fluctuates greatly, so vibration is inevitable. When the frequency of vibration is the same or a multiple of the natural frequency of the machine tool, the vibration is most severe. In addition, during high-speed milling, the cutter teeth also undergo periodic cold and hot impacts, which can easily lead to cracks and blade breakage, resulting in a decrease in tool durability. The multi blade and multi edge cutting milling cutter has multiple teeth and a large total length of cutting edges, which is beneficial for improving the durability and productivity of the tool, and has many advantages. But there are also two problems: first, the tool teeth are prone to radial runout, which will cause uneven load on the tool teeth, uneven wear, and affect the quality of the processed surface; The second is that the chip space of the blade teeth must be sufficient, otherwise it will damage the blade teeth. According to different processing conditions, different milling methods can be selected to improve the durability and productivity of cutting tools, such as reverse milling, forward milling, symmetrical milling, asymmetric milling, etc.
Besides cylindrical milling cutters, end mills are also commonly used. So, what is the difference between cylindrical milling cutters and end mills? The most direct difference is that the cylindrical milling cutter needs to be inserted into the tool holder for use, while the end milling cutter can be directly inserted into the spindle taper hole for use. End mills are used to process grooves and step surfaces, with teeth on the circumference and end face. Generally, they cannot be fed along the axial direction during operation. When there are teeth passing through the center end on the end mill, axial feed can be achieved. Moreover, the usage range and requirements of high-speed steel end mills are relatively broad, and even if the cutting conditions are slightly improper, there should not be too many problems. Although hard alloy end mills have good wear resistance during high-speed cutting, their usage range is not as wide as that of high-speed steel end mills, and the cutting conditions must strictly meet the requirements of the tool.
However, when using it, whether to choose a cylindrical milling cutter or an end milling cutter depends on the materials we process and the amount of processing. When we make a purchase, the manufacturer will provide you with relevant suggestions, which you can refer to. If you want to learn more about cylindrical milling cutters. Please continue to follow Sujia Network, and the editor will recommend relevant content for you.
