Introduction of deep hole machining tool?

Release time:

2022-12-02

The emergence and development of any industry is inseparable from the progress of science and technology, which is also the promotion of the industry caused by the continuous expansion of market demand, and promotes the continuous upgrading of products by relevant personnel. Then in the processing industry, this requirement is even more. For example, the processing of deep hole processing tools is also moving from traditional technology to more advanced technology processing, so what are its characteristics? At the same time, what should we pay attention to when using it?

The emergence and development of any industry is inseparable from the progress of science and technology, which is also the promotion of the industry caused by the continuous expansion of market demand, and promotes the continuous upgrading of products by relevant personnel. then in the processing industry, this requirement is even more, suchdeep hole machining toolThe processing is also from the traditional process to more advanced technology processing, so what are its characteristics? At the same time, what do we need to pay attention to when using it?

深孔加工刀具

The so-called deep hole processing is a hole with a ratio of the length of the hole to the diameter of the hole greater than 10. In deep hole processing, in most cases, the depth-diameter ratio of deep hole is L/d≥ 100. Such as cylinder bore, shaft axial oil hole, hollow spindle hole and hydraulic valve hole. Some of these holes have high requirements for machining accuracy and surface quality, and some machining materials have poor machinability, which often becomes a major problem in production.

In general, the deep diameter ratio L/d in the deep hole machining tool is greater than or equal to 100. Such as cylinder hole, axial oil hole of shaft, rocket body and gun barrel of various artillery, etc. Some of these holes have high requirements for machining accuracy and surface quality, and some machining materials have poor machinability, which often becomes a major problem in production. Therefore, deep hole processing has been paid attention to by many people, and more and more people have entered the deep hole processing industry.

　　deep hole machining toolThe technical characteristics of the tool bar are limited by the aperture, small diameter and large length, resulting in poor rigidity and low strength. It is easy to produce vibration, ripple and taper during cutting, which affects the straightness and surface roughness of deep holes. When drilling and reaming, if a special device is not used, it is difficult to input the cooling lubricant into the cutting area, which reduces the durability of the tool and makes it difficult to remove chips. In the process of deep hole machining, the cutting situation of the tool cannot be directly observed, but by listening to the cutting sound, observing the chip, hand vibration and workpiece temperature, and observing the instrument (oil pressure gauge and electric meter) based on work experience. Is it normal. Chip removal is difficult. Deep hole machining tools use reliable means to break chips and control the length and shape of chips to facilitate smooth chip removal and prevent chip blockage. In order to ensure the smooth progress of the deep hole in the processing process and achieve the required processing quality, internal (or external) chip removal devices, tool guiding and supporting devices, and high-pressure cooling and lubricating devices should be added. The heat dissipation condition of the tool is poor, and the cutting temperature increases, which reduces the durability of the tool.

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