Some knowledge points of deep hole processing, deep hole processing tool manufacturers tell you

Release time:

2022-09-23

Deep hole processing tool manufacturers believe that carbide drill is a convenient, fast and efficient hole processing tool. Widely used in aerospace, military, automotive, mechanical processing and other fields. It has a certain versatility in the material of the workpiece to be processed and can be applied to the drilling of various materials. In the processing of different materials, it has its unique characteristics and advantages.

　　deep hole machining toolManufacturers believe that carbide drill is a convenient, fast and efficient hole processing tools. Widely used in aerospace, military, automotive, mechanical processing and other fields. It has a certain versatility in the material of the workpiece to be processed and can be applied to the drilling of various materials. In the processing of different materials, it has its unique characteristics and advantages.

Deep hole processing tool manufacturers recognize the so-called deep hole processing, that is, the ratio of hole length to hole diameter is greater than 5. Deep hole processing is generally deep hole diameter ratio L/d is greater than 100. Such as cylinder hole, shaft axial oil hole, hollow shaft hole, hydraulic valve hole, etc. Some of these holes have high requirements for machining accuracy and surface quality, and some of the processed materials have poor processability, which often becomes a major problem in production.

Deep hole processing tool manufacturers recognize that deep hole processing occupies a very important position in the field of machining, accounting for about 40% of the hole processing volume. With the progress of science and technology, new deep hole parts with high strength, high hardness and high value appear constantly, and the requirements for processing depth, processing accuracy and processing efficiency are constantly improving, which makes deep hole processing become the key process and processing difficulty of mechanical processing.

Deep hole processing tool manufacturers recognize how to solve the problem of deep hole processing is chip removal. But deep hole processing in addition to the big problem of chip removal, there are other difficulties. For example, you can't directly observe the cutting situation, you can only judge the chip removal and drill wear by parameters such as sound, chip removal, machine tool load, oil pressure, etc. The heat of the chip is not easy to transfer; because the drill pipe is long, the rigidity is poor, and it is easy to vibrate, the axis of the hole is easy to tilt, which affects the price accuracy and production efficiency.

　　deep hole machining toolManufacturers recognize the technological characteristics of deep hole processing

1. The tool bar is limited by the aperture, the diameter is small, and the length is long, resulting in poor rigidity and low strength. When cutting, it is easy to produce vibration, ripple and taper, which will affect the straightness and surface roughness of deep holes.

2. When drilling and reaming, if there is no special device, 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.

3. Deep hole processing tool manufacturers recognize that in the process of deep hole processing, you cannot directly observe the cutting situation of the tool. You can only judge whether the cutting process is normal by listening to the cutting sound, watching the chips, touching the vibration and workpiece temperature, and observing the instruments (oil pressure gauge and watt-hour meter) based on your work experience.

4. When the chips are difficult to remove, reliable means must be used to break the chips and control the length and shape of the chips to facilitate the smooth removal of the chips and prevent the chips from clogging.

5. In order to ensure the smooth progress of deep hole processing and achieve the required processing quality, it is necessary to increase the internal (or external) chip removal device, tool guide and support device, and high-pressure cooling and lubrication device.

6. The tool heat dissipation condition is poor, and the cutting temperature increases, which reduces the durability of the tool.

　　deep hole machining toolWhen the manufacturer recognizes deep hole processing, it should pay attention to the coaxiality of the center line of the spindle and the tool guide sleeve, the tool bar support sleeve, the workpiece support sleeve, etc. Should meet the requirements; The cutting fluid system should be smooth and normal; There should be no center hole in the machined end face of the workpiece, and drilling on the inclined plane should be avoided.