Arix core drill bit

Drill is used for drilling in solid material out through holes or blind holes, and is able to existing hole reaming tool. Commonly used mainly twist drill, flat drill, center drill, deep hole grass cutting tct saw blade nd core drill. Reamer and countersink drill, although not in the physical material drilling, but the habit will also drill them into a class. There are two kind of drill in drilling in concrete, etc., can ease the drilling status of a sudden change in the situation, so that electroplated core drill bit operations stable, even when a large grain chips, drilling efficiency is not caused by lower drill. A drill bit arranged at the front end comprising a plurality of cutting edge portions, and is provided at the base end side of the cutting blade portion and formed with a shaft-shaped shank of non woven flap disc to the base end portion.

Non-core drill bit

Solid carbide drills suitable for use in advanced machining center. This diamond glass drill bit fine particulate materials using carbide for long life, also conducted a TiAlN coating, specially designed blade geometry type of the drill with self-centering feature, when drilling most workpiece materials have good chip control and chip evacuation. Self-centering function of the drill and manufacturing precision strict quality control to ensure that the hole segmented dry core drill bit , electroplated core drill bit without further follow-up after finishing. Installation carbide indexable insert drills machinable pore size range is very wide, processing depth range of 2D ~ 5D (D for diameter) can be used lathes and other rotating machines.

Segmented dry core drill bit

A core drilling bit used. GUSHI drill bit for metal is made of various metals and metal drill. On a cylindrical diamond cutting tools body due inlay tungsten carbide cutting welded with the name. Its shape and the number of drill inserts welded carbide cutting tools, the arrangement, inserts welded different angles, called the end of the blade, the blade within the blade and go out to ensure that there is a gap in water and drain through powder. The upper part of the body is threaded connection arix core drill bit core pipe, drill a sink open side of the body, the surface of the bottom lip also opened outlets. Sink and outlet are guaranteed circulation of fluid, reaching exclusion of rock dust and cool the drill bit role. In order to increase the gap in the inner and outer sidewalls of the hard alloy welded drill when drilling clay and shale formations ribs, said ribs drill bit. In hard abrasive formations can be used with high-autogenous grinding tungsten carbide drill bits. Generally hard alloy drill for drilling rock drillability grade Ⅱ Ⅶ a formation; tungsten carbide electroplated core drill bit can drill a Ⅷ level Ⅵ rock.

Each drill bit for metal hole alloy processing costs

Each hole machining productivity or cost is the most important factor in drilling impact. To improve productivity, the carbide drill bits manufacturers are working on a variety of operations can be integrated step processing method, and developing high feed, high speed processing of the drilling tool. The newly developed replaceable carbide drill crown has excellent machining economy. Carbide crown replacement easy and high repeatability, processing workshops available drill body with a plurality of teeth crowns, to the processing of different pore sizes of holes. This modular drilling system can reduce 12 ~ 20mm diameter drill bit manufacturing costs and administrative expenses, while also saving the cost of backup tool when welding or solid carbide drills were reground needed. When considering the cost of processing each hole, should also be taken into account the total life of the core drill bit. In general, a solid carbide drill regrinding only 7 to 10 times, a welded carbide drill regrinding only 3 to 4 times, and replaceable carbide drill crown in the processing of steel material , its steel hammer drill bits body can be replaced at least 20 to 30 times the tooth crown.

Alloy drill bit for metal chip and coolant

Chip is drill bits for metal for metaling in question can not be ignored. In fact, the drill bit for metaling encountered the most problems is poor chip (especially when machining low carbon steel workpiece), and regardless of the drill bit for metal were unable to avoid this problem. Processing plant are often used way of external coolant injection auxiliary chip, but this method only if the workpiece hole diameter and decrease the cutting depth is less than the case of the parameter is valid. In addition, you must use the hss drill bit for metal diameter to match the right kind of coolant flow and pressure. For the spindle cooling system is not installed in the machine, you should use a coolant pipe. The deeper the hole to be machined, the more difficult chip removal, the coolant pressure greater need, therefore be guaranteed bit manufacturer's recommended minimum coolant flow, such as drill bit lack of coolant flow, it is necessary to reduce the machining feedrate.

Features and choice of solid carbide drills

Solid carbide drill bits is a complete carbide rods, use grinder processing. High strength, high hardness properties, fast cutting speed, wear resistance, red hardness and good, suitable for processing a variety of materials components. By cooling structure can be divided into non-cooling holes and there are two types of cooling holes. 1. Characteristics and uses (1) rigid, high strength, easy access to high precision core drill bit. (2) the material can be suitable for more complex drilling, selects a higher cutting speed. (3) effective to reduce chipping, has good wear resistance. (4) multi-layer geometry cutting tip edge, improving chip performance, maintain a smaller cutting resistance. (5) In addition to commonly used rectangular handle, the wide range of handles, suitable for a variety of drills, drilling machines equipped with. (6) compared with indexable insert drills, solid carbide hammer drill bits grinding times can be 7-10 times.

Processing stability of drill bits

In addition to considering drill biting accuracy requirements, the need to consider the stability of the machine tool when selecting Non-core drill bit. Machine stability is essential for safe life and precision drill bit bit, and therefore need to carefully examine the machine spindle, fixture and accessory working condition. Also, consider the stability of the drill bit itself. Solid carbide drill bits best rigidity and therefore can achieve high precision. The poor structural stability carbide indexable insert masonry drill bit, and prone to deflection. Welded carbide drill bits and replaceable carbide drill bit crown is composed by two symmetrical self-centering cutting edge geometry of edge, which has a high stability of the cutting edge of design when it does not need to cut into the workpiece reduce the feed rate, and only when the drill bit bit inclined mounting surface and cut into a certain inclination exception, this time recommended drill bit, drill bit when the feed rate is reduced from 30% to 50%. Because these drill bit steel sds plus hammer drill bits body can produce small deformation, and therefore well suited for lathe; but due to the large brittle solid carbide drill bits, when used in lathe easier to break, especially when the poor condition of the drill bit centering when even more so.