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

Release time:

2022-10-08

Deep hole processing tool manufacturers believe that deep hole processing is a difficult problem in machining. Especially in the processing of slender holes, the difficulty lies in the problems such as cutting tools and chip removal, which often fail to meet the requirements of processing quality. The advanced deep hole processing technology mainly uses special equipment (gun drill) and special auxiliary tools for processing, which provides a high efficiency, high precision and low labor intensity deep hole drilling method which is far superior to the traditional processing method. It can not only process deep holes, but also process precision shallow holes.

　　deep hole machining toolManufacturers believe that deep hole processing is a difficult problem in machining. Especially in the processing of slender holes, the difficulty lies in the problems such as cutting tools and chip removal, which often fail to meet the requirements of processing quality. The advanced deep hole processing technology mainly uses special equipment (gun drill) and special auxiliary tools for processing, which provides a high efficiency, high precision and low labor intensity deep hole drilling method which is far superior to the traditional processing method. It can not only process deep holes, but also process precision shallow holes.

Deep hole machining tool manufacturers believe that when selecting a drill bit for a particular hole machining task, the machining technician should first consider the depth of the hole to be machined. The deeper the hole to be machined, the more chips are discharged during machining. If the chips generated during the machining process cannot be discharged in a timely and effective manner, it may block the chip removal groove of the drill bit, thereby delaying the machining process and affecting the machining quality of the hole.

　　deep hole machining toolManufacturers believe that the difficulty of deep hole processing:

(1) The cutting situation cannot be directly observed. The chip removal and drill wear are judged only by parameters such as sound, chip observation, machine load, oil pressure, etc.

(2) cutting heat is not easy to spread.

(3) Chip removal is difficult, and blocking chip removal will damage the drill bit.

(4) Due to the long drill pipe, poor rigidity, easy vibration, the axis of the hole is easy to tilt, which affects the processing accuracy and production efficiency.

Deep hole processing tool manufacturers believe that according to the chip removal method, deep hole drilling can be divided into external chip removal and internal chip removal. External chip removal includes gun drills and integral alloy deep hole drills (divided into cooling holes and non-cooling holes). Internal chip removal can be divided into BTA deep hole drilling, jet suction drilling and DF system deep hole drilling.

　　1.deep hole machining toolThe manufacturer believes that the external chip removal deep hole drill (gun drill) refers to a deep hole with a length-diameter ratio of 2~2~20mm, a length-diameter ratio of L/D greater than 100, a precision of H8 ~ H10, and a surface roughness value of Ra = 12.5~3.2 m, and its production efficiency is lower than that of the internal chip removal deep hole drill.

2.BTA deep hole drill for internal chip removal: it is used for processing deep holes with length-diameter ratio L/D greater than 100, precision H7 ~ H9 and surface roughness Ra = 3.2m m, and its production efficiency is more than three times that of external chip removal.

3. Jet suction drill: for processing 16~16~60mm, cutting fluid pressure is low. Other characteristics are the same as deep hole drills with internal chip removal.

4. Deep hole processing tool manufacturers believe that DF system deep hole drill or single pipe jet drill. DF system deep hole drilling rig is developed on the basis of ordinary jet drilling rig. It is a processing system that combines the method of ordinary BTA deep hole drill pushing out chips with the method of jet drill sucking out chips. Because a drill pipe is supported by cutting fluid, the vibration is reduced, the chip removal space is large, the processing efficiency is high, and the precision is good, which can be used for high-precision deep hole processing. The production efficiency is 3~6 times of gun drill and 3 times higher than BTA chip removal drill.