Precautions of deep hole drilling high pressure cooling system in actual operation

Release time:

2022-06-15

The high-pressure cooling system of CNC deep hole drilling is more and more widely used in today's production and processing fields. The following are the precautions for the actual operation of the high-pressure cooling system of deep hole drilling. 1. Before starting the spindle bearing of the deep hole drill, the drill needs to be in the guide hole. 2. Coolant is required before deep hole drilling. 3, deep hole drilling production and processing of cutting parameters should be selected to calculate the parameters.

CNCHigh pressure cooling system for deep hole drillingIn today's production and processing applications are becoming more and more extensive, the following are the precautions for the actual operation of the deep hole drilling high-pressure cooling system.

1. Before starting the spindle bearing of the deep hole drill, the drill needs to be in the guide hole.

2. Coolant is required before deep hole drilling.

3, deep hole drilling production and processing of cutting parameters should be selected to calculate the parameters.

4. During the production process, the deep hole drill bit should always check whether the iron is discharged and whether everything is normal to determine whether the drill bit is damaged.

5, deep hole drilling to use different lengths of drill (short to long) grade classification drill, can not be a one-time.

6. Comply with the given standard in actual operation: manually import the drill bit.

CNC deep hole drill bit is more and more widely used in today's production and processing applications. The following are some small examples that illustrate the actual operation of CNC deep hole drills.

1. Before the deep hole drill spindle bearing is started, the drill needs to be in the guide hole.

2. Coolant is required before deep hole drilling.

3, deep hole drilling production and processing of cutting parameters should be selected to calculate the parameters.

4. During the production process, the deep hole drill bit should always check whether the iron is discharged and whether everything is normal to determine whether the drill bit is damaged.

5, deep hole drilling to use different lengths of drill (short to long) grade classification drill, can not be a one-time. Otherwise, if the drill pipe is hung outside the hole for too long, it will break quickly and cause a safety accident.

6. Standards provided in actual operation: manually introduce the drill bit into the guide hole, open the spray, start the rotation of the main shaft, and start the transportation; Stop rotation at the end of delivery, stop oil injection and withdraw the drill bit.

　　High pressure cooling system for deep hole drillingThe tool passes through high pressure and correct direction, the coolant forms a partition between the blade edge and the chip, generates a hydraulic wedge between the blade and the chip, affects the formation and flow of the chip, and reduces the temperature of the cutting area. The nozzle installed near the cutting edge can accurately spray a high-speed coolant jet to extract debris from the surface of the cutting edge, cool and cut off the debris, so as to remove the debris.

Even if the coolant pressure is as low as 10 Pa, considerable benefits can be obtained by using high-pressure cooling technology when finishing steel, stainless steel, aluminum alloy, titanium alloy, high-temperature alloy and other materials. In addition to the higher processing safety brought about by better chip control, high-pressure cooling can also significantly extend tool life (up to 50%). The use of higher cutting speeds can greatly reduce production costs.

Cutting speed has more influence on cutting temperature and tool wear than any other factor. When machining titanium alloy, if the reasonable machining area is exceeded, increasing the cutting speed will shorten the tool life sharply, but increasing the feed in a similar way will shorten the tool life less obviously. Therefore, improving the metal removal rate by changing the transfer becomes a more attractive solution.

However, the use of high transfer is not always a panacea, and increasing the transfer will inevitably produce greater cutting force and will also affect the control of debris. High-pressure cooling technology has the potential to improve machining performance by increasing cutting speed without the need for general temperature increases and tool life reductions. For ISOS materials, the cutting length remains the same even if the cutting speed is 20% faster.

Internal lathes are also areas where high-pressure cooling technology plays an important role. The deep-hole drilling high-pressure cooling system can ensure good chip formation and improve the shear performance of materials when processing difficult materials such as titanium alloys. This can improve the machining safety in the boring process and extend the tool life.