The advantages of using ball end milling cutter and the problems that should be paid attention
Release time:
2024-07-03
The use of ball end milling cutter advantages:
1. Ball end milling cutter can milling die steel, cast iron, carbon steel, alloy steel, tool steel, general iron, belongs to the end mill. Ball end milling cutter can work normally in high temperature environment.
2. Reduce the actual cutting radius: Just like the use of a bull nose cutter, the use of a ball end cutter reduces the actual cutting diameter, reduces the cutting line speed, reduces the cutting power and cutting torque during cutting, and is more conducive to the spindle motor. Machining in a better state.
3. A more stable processing state can be obtained: when the ball end cutter is used for processing, the cutting angle is continuously changed, and there is almost no sudden change phenomenon, so that the change of cutting force is a continuous change process, so that the cutting state can be guaranteed during processing. More stable, higher surface finish.
4. Ball end cutter is a tool for semi-finishing and finishing of curved surfaces: the spindle motor we use has poor ability to resist axial force, so generally it is not possible to use ball end cutter for roughing (axial cutting force is too large), while in semi-finishing, it is very good to use ball end cutter. After semi-finishing with a ball-end knife, the processing residue is less, which is more conducive to the following finishing. The path spacing of semi-finishing is generally the two quilts of finishing spacing. If parallel cutting line is used, it is 90 degrees from the direction of finishing feed.
Ball end milling cutter use should pay attention to the problem:
1. Minimize the use of tool tip to process workpieces: at the tool tip position of the ball end, the machining linear speed is 0 during actual machining, that is to say, in fact, the tool is not cutting, but grinding. In actual machining, the coolant cannot be added to the cutting area at all, which leads to a relatively large cutting heat and a decrease in tool life.
2. For the straight wall, use the same height shape processing method for processing: to minimize the ball end knife down along the straight wall
The phenomenon of processing. Relatively speaking, processing along the straight wall is a very good method, but it is difficult to separate them in actual processing. Compare the differences between the two below.
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2024-07-03
Zhongchi Zhigu Technolog
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