There are various methods for classifying diamond drill bits, with the main common methods being: engineering drill bits classified by purpose, primarily used for construction projects; classification of the hot-pressing method based on manufacturing methods; and classification of natural diamond engineering based on the type of diamond used. The selection method for diamond drill bits is based on the drillability grade of the diamond core and different rock layers.

       DiamondThere are various methods for classifying drill bits, the main common methods are:

     1. Engineering drill bits classified by purpose mainly serve construction purposes. These engineering drill bits come in various specifications and have a large usage volume, forming a specialized main product series - industrial drill bits. Diamond drill bits are mainly used for processing products like wide-screen wide lenses and silicone covers, focusing on drilling and core sampling. Sample drills are primarily used for material sampling analysis.

     2. Classification of thermal pressing methods based on manufacturing techniques is similar to the thermal pressing process of lipid drills. A loop can be made first and then welded onto the steel body, or it can be directly thermally pressed onto the steel body. The electroplating method is similar to the manufacturing process of electroplated drill bits and can be divided into epitaxial growth method and conventional method.

     3. Classification based on the type of diamond used: natural diamond engineering uses natural diamonds as cutting materials, commonly used in the building materials industry. Synthetic diamond engineering drill bits use synthetic single crystal diamonds as cutting materials, mainly utilized in optical and chemical industries.

     Methods for selecting diamond drill bits:

     1. For soft to hard (diamond core drilling rock hardness levels 1-6) and completely uniform rock layers, it is generally recommended to use natural surface drills, composite drills, polycrystalline drills, or partially sintered drills.

     2. For hard dense rock layers (levels 7-12), it is generally recommended to use pregnant drills, pointed ring concentric circles, staggered pointed ring drills, or fine particle surface-set diamond drills.

     3. In crushed, soft interlayers, developed fractures or highly abrasive rock layers (such as coal strata), sharp tooth-type light treasure drills or well-worn electroplated drills should be used.

     4. The selection of diamond drill bits should consider the abrasiveness of rocks, weathering degree and fragmentation level: choose high wear-resistant bodies for strong abrasive rock layers; choose medium wear-resistant bodies for medium abrasive rock layers; choose low wear-resistant bodies for weak abrasive rock layers. The more complex the rock layer's abrasiveness is stronger and harder; higher-grade diamonds should be used with finer-grained diamond drill bits. For strong abrasive and more fragmented rock layers under conditions where diamond bases are well set up, use diamond drill bits with higher concentrations of diamonds; conversely, uniform weakly abrasive rock layers should use lower concentration diamond drill bits. For soft rock layers (levels 1-4) with more distribution, composite sheet drills or polycrystalline drills should be used. Erosive rock layers require bottom spray drill heads.

     DiamondThe above text provides a basic overview of "Classification and Selection Methods for Drill Bits"; please refer to it yourself. If you have any questions, feel free to consult us directly or follow us. If you find this article useful, you can also bookmark it.