The so-called deep hole processing, is the length of the hole and hole diameter ratio greater than 5 holes. In general, deep hole machining, deep hole diameter ratio L/d is more than 100 in most cases. Such as cylinder hole, axial shaft oil hole, hollow main shaft hole and hydraulic valve hole, etc. Some of these holes require high machining precision and surface quality, and some of the processed materials have poor machining performance, which is often a big problem in production.

In most cases, the depth ratio of L/d is greater than or equal to 100. Such as oil cylinder hole, axial shaft oil hole, rocket body and various gun barrel, etc. Some of these holes require high machining precision and surface quality, and some of the processed materials have poor machining performance, which is often a big problem in production. As a result, deep hole machining has received much attention from many people, and more and more people have entered the deep hole machining industry of tungsten carbide drill bits.

Process features:

1. The tool bar is limited by the aperture, with small diameter and large length, resulting in poor rigidity and low strength. It is easy to generate vibration, ripple and taper when cutting, and affects the straightness and surface roughness of the deep hole.

2. When drilling and reaming, it is difficult to enter the cooling lubricant into the cutting area without using special equipment, so as to reduce tool durability and chip removal.

3. in the process of deep hole processing, cannot be directly observed tool cutting condition, with only the sounds of our experience in listening to the cutting, the chip, hand to touch the workpiece temperature and vibration, meter and electric meter (hydraulic table), to determine the cutting process is normal.

4. It is necessary to use reliable means to break the chip and control the length and shape of the chip, so as to facilitate the smooth elimination and prevent the chip from clogging.

5. in order to ensure that in deep hole machining process smoothly and reach the processing quality of should be required, should increase the cutting tool inside (or outside) chip removal device, cutting tool to guide and support device and high pressure cooling lubrication device.

6. Poor heat dissipation conditions of the tool, higher cutting temperature and lower tool durability.

Deep hole machining has been widely used in the mould industry, which solves the problem of fine hole and long hole which cannot be solved by common drilling machine. The machining cost of the mould is effectively reduced. To undertake the most sophisticated deep hole processing, the hole diameter 3-35 length can be up to 2,600. The channel hole, oil channel hole, air hole, single oblique hole, double oblique hole, screw hole, pin hole and so on are solved to the maximum.

Related link:

http://www.wococarbide.com/Transaction/en_information.html

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