Some common sense of deep hole processing, deep hole processing tool manufacturers to explain for you

Release time:

2022-09-13

Deep hole processing tool manufacturers believe that vibration is a very harmful phenomenon, seriously affecting the surface quality and performance of parts. There will be relative displacement between the tool and the workpiece, so that the tool is easy to wear and even collapse. So, what measures can be taken to reduce vibration in deep hole processing?

　　deep hole machining toolThe manufacturer believes that the vibration knife is a very harmful phenomenon, which seriously affects the surface quality and performance of the parts. There will be relative displacement between the tool and the workpiece, so that the tool is easy to wear and even collapse. So, what measures can be taken to reduce vibration in deep hole processing?

First of all, choose a reasonable blade and cutter bar to reduce the cutting force. Deep hole processing tool manufacturers believe that when the length-diameter ratio of the deep hole processing tool bar is greater than 10, the tool bar with vibration damping function should be used. When the main deflection angle increases, the radial cutting force decreases and the axial cutting force increases. Without affecting the strength of the tool, the main deflection angle should be increased as much as possible in deep hole processing.

Secondly, adjust the cutting depth and feed rate.deep hole machining toolManufacturers believe that in deep hole processing, the feed speed affects the shape and length of the chip. Too large or too small feed speed will cause poor chip breaking. When the cutting depth increases, the cutting force increases in proportion to the cutting area. It is necessary to comprehensively determine the parameters according to the material of the part, the size of the inner hole, the surface quality of the part and the chip removal during the adjustment of the machine tool.

Third, select the appropriate clamping position and reference plane according to the structure of the part. In the case of ensuring the accuracy of the two positioning references, the reasonable use of over-positioning can increase the stiffness and reduce the relative displacement between the workpiece and the tool.

Deep hole processing tool manufacturers believe that the structure of deep processing and mold application:

1. Deep hole processing is difficult to dissipate heat, and effective and reliable cutting heat cooling method is adopted.

　　2.deep hole machining toolManufacturers believe that it is difficult to remove chips in deep hole processing. If there is a chip blockage, it is easy to damage the tool. Therefore, a reasonable choice of cutting parameters to ensure reliable chip breaking and smooth chip removal.

3. In the process of deep hole processing, the hole is prone to deflection, so the guiding device and measures should be considered in the structural design of the tool and the liquid feeder.

4. When deep hole processing, the drill pipe is long, the rigidity is poor, and it is easy to vibrate, which will directly affect the processing accuracy and production efficiency. Therefore, the reasonable choice of cutting parameters is very important.

Deep hole processing tool manufacturers believe that vibration will cause various problems in processing, such as blade fracture, surface quality decline. Therefore, only the elimination of vibration, in order to successfully complete the processing of a part. For inner hole processing, such as turning and boring, when its overhang ratio reaches about 4xd, the performance of ordinary steel tool bars reaches the limit. If the overhang rate continues to increase, it is bound to face the risk of vibration. However, due to the good rigidity of the carbide rod, the longest overhang ratio can reach about 6xd. However, as modern part designs become more and more complex, deeper holes are everywhere. It is almost impossible for traditional tools to successfully and efficiently process these parts.

Deep hole machining tool manufacturers believe that there are generally two ways to eliminate vibration before: one is to increase the rigidity of the tool system, in short, to use a thicker tool bar or more rigid materials. However, these methods are generally limited due to problems of increased quality and cost. The second is to reduce the cutting parameters of the tool, but the efficiency will also be reduced, which is obviously unacceptable in today's competitive market environment.