Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
News
Home > News
There are several types of percussion bits
2022 / 04 / 12
There are eight types of percussion bits. 1, carbide impact drill can be divided into: straight shank impact drill, taper shank impact drill and hexagonal shank impact drill. Use: for clamping on the impact drill, for drilling concrete foundation, wall, brick wall, granite, in order to install expansion bolts, plastic expansion pipe and other fasteners in the hole. 2, if the electric hammer bit is accidentally broken in the inside, the first user should first open the electric hammer collet to the maximum, if there are screws in the collet, you can remove the screws with a screwdriver; Then insert the collet key and turn the collet counterclockwise. Note that the collet is rotated, not the key. If the key is rotated, the bit will clamp more tightly, so just rotate the collet counterclockwise.
2022 / 03 / 28
There are four basic types of carbide bits: solid carbide bits, indexable carbide bits, welded carbide bits, and replaceable carbide crown bits. Solid carbide bit Solid carbide bits are suitable for use in advanced machining centers. The drill bits are manufactured from fine grained carbide materials and coated for extended service life. The specially designed geometric edge enables self-centering, providing excellent chip control and removal when drilling most workpiece materials.
2022 / 03 / 15
Processing effect (1) the diameter of twist drill is limited by the aperture, the spiral groove makes the drill core thinner, the drill bit stiffness is low; With only two ribbed guides, the axis of the hole is easy to skew; The horizontal edge makes centering difficult, axial resistance increases, and the bit is easy to swing. Therefore, the shape and position error of the drilled hole is large. (2) twist drill before and after the tool surface are curved, along the main cutting edge of each point of the front Angle, the rear Angle is not the same, the front Angle of the horizontal edge of -55°. Poor cutting conditions; The distribution of cutting speed along the cutting edge is not reasonable, and the cutting speed of the tip with the lowest strength is the highest, so the wear is serious.
2022 / 03 / 15
Twist drill is a tool used to drill round holes of workpiece by rotating cutting of its relative fixed axis. Because of its capacity chip groove into spiral shape and shape like hemp and named. Spiral grooves have 2, 3 or more grooves, but 2 grooves are the most common. Twist drill can be clamped on manual, electric hand-held drilling tools or drilling machines, milling machines, lathes and machining centers. Drill material is usually high - speed tool steel or carbide. Standard twist drill. Twist drill is composed of shank, neck and working part. (1) Spiral Angle β Spiral Angle is the Angle between the most round spiral line on the spiral groove of the bit and the axis of the bit after it expands into a straight line. As the lead of each point on the
Twist drill and forming method thereof
2022 / 03 / 02
Twist drill is the most important hole processing tool, it is a kind of double spiral groove complex cutting tool, its main cutting performance (such as processing quality, processing efficiency and tool durability, etc.) and its geometric parameters are closely related. Therefore, people have been committed to the improvement of drill and drilling process research. Twist drill and its Forming Method systematically describes the twist drill's basic structure, geometric Angle and common tool materials; On the basis of studying the forming method of standard twist drill groove and the forming method of twist drill rear cutter surface, the method of forming the rear cutter surface of twist drill by electric discharge wire cutting machine tool is put forward, its forming principle and forming device are introduced, and the experimental study of wire cutting method is carried out.
2022 / 02 / 17
Materials and classification Hollow bit material Hollow drill material can be divided into hard alloy steel, high-speed steel, powder metallurgy, tungsten steel drill class, general use most is cemented carbide on the market, and high speed steel is commonly used type, hard alloy hollow drill its advantages of wear-resisting durable, not easy to crash when playing a hard material, type and high speed steel is very sharp, drilling is faster, but more brittle, easily broken when playing a hard material. Hollow bit classification In addition to the traditional twist drill in the market, there are specialized for ma
What is the difference between a regular drill and a U drill
2022 / 02 / 08
Take stainless steel as an example, the two are mainly different in three aspects, such as feed, speed and linear speed. First, the amount of supply Common bit: feed 0.03~0.08. U drill: the feed
How to distinguish the purpose of drill bit
2022 / 02 / 08
There are many kinds of real drill bits, mainly according to their different uses and distinguish, that is, what kind of drill bits to drill. Common drill bits are twist drill, flat drill, deep hole drill, reaming drill, countersink drill, center drill, etc., the following in detail. 1 Flat drill The cutting part of flat drill is spade form, structure is simple, manufacturing cost is low, in cutting fluid leads into hole easily, but performance of cutting and discharge chip is poorer. Flat drill structure has two types of integral and assembled. The whole is mainly used for drilling 0.03 ~ 0.5 mm diameter micro hole. Prefabricated flat drill blade can be changed, can use internal cooling,
What's the difference between an alloy bit and a HSS bit?
2022 / 01 / 25
1. Different materials Alloy is a kind of ultra-high hardness and very wear-resistant material, the only disadvantage is easy to break, but the wear resistance is very strong, good alloy material is very easy to use, and the price is very high. HSS drill a is not easy to break and wear resistance is very good and so on, generally for factory in need of high speed steel drill bit is more cost-effective, because the unit price is low and the quality also, still can be generally adopts high speed steel drill bit, unless encounter and rigid material, high speed steel drill bit processing, select alloy bit again. 2. Different physical properties Alloy bit generally refers to carbide bit, can be divided into integral, welding, indexable blade type and removable head type.
Usage and characteristics of carbide bit
2022 / 01 / 25
Carbide bits are divided into four basic types: solid carbide bits, indexable carbide inserts, welded carbide bits and convertible carbide crown bits. Each bit has the benefit of being suited to a particular machining premise. Carbide bits break rock by weight on bit and impact load generated by rotation. In rock drilling, the drill bit is subjected to high frequency impact load, and is subjected to torsion, bending, stretching, compression and other complex stresses. In the environment of high-speed rotary collision, the drill bit is subjected to wear and corrosion of rock, rock powder and mineral water and other working media. Usage and characteristics of carbide drill: 1, can be suitable for more complex material drilling, can choose higher cutting speed. 2. The high performance alloy blade specially s
Advantages and disadvantages of carbide bit
2022 / 01 / 25
Advantages: (1) Good rigidity, high strength, easy to obtain higher drilling accuracy. (2) Can be suitable for more complex material drilling, can choose higher cutting speed. (3) Effectively reduce blade breakage, with good wear resistance. (4) Multi-layer geometric cutting edge, improve chip removal performance, keep small cutting resistance. (5) In addition to the usual right-angle handle, equipped with a variety of handle, suitable for a variety of drill, drilling machine. (6) Compared with indexable blade bit, the whole carbide bit can be repaired for 7 ~ 10 times. Disadvantages: to grind well, grinding is not easy to collapse, the two main cutting edge height, Angle is the same, it is best to use grinding drill machine. Extended information Carbide bits are divided into four types of foundation: solid carbide bits, carbide indexable blade bits, Welded carbide bits and convertible carbide crown bits. Each bit has the benefit of being suited to a particular machining premise. (1) Solid carbide drill bit (2) Carbide indexable blade drill The drill with indexable carbide inserts can process a wide range of aperture sizes, and the processing depth ranges from 2D to 5D (D is the aperture), which can be used in lathes and other torsional machining machines. (3) Welded carbide drill bit The welded carbide bit is made by smoothly welding a carbide crown to a steel drill body. This kind of drill uses self-centering geometric edge type, cutting force is small, for most of the workpiece materials can achieve excellent chip control, machining the hole profile smooth degree is good. Dimensional accuracy and positioning accuracy are very high, no need for subsequent finishing. The bit adopts inter
2022 / 01 / 20
Carbide steel drilling edit Multipoint steel drill is mainly used for drilling of steel members, such as steel structure engineering, rail transportation, Bridges, ships, machinery manufacturing, aerospace, and other areas of the hole drilling, the drilling performance is superior to the traditional two blade twist drill, drilling drilling with high efficiency, light energy, the characteristics of blade steel drill and magnetic bridge drilling rig can form a complete set of large workpiece multi-faceted, Easy to operate and flexible, effectively shorten the construction time, become the modern steel member drilling and annular groove processing of the preferred tool. Performance of the editor 1, can be suitable for more complex material drilling, can choose higher cutting speed.
2022 / 01 / 11
Carbide bits are divided into four basic types: solid carbide bits, indexable carbide inserts, welded carbide bits and convertible carbide crown bits. Each bit has the benefit of being suited to a particular machining premise. (1) Solid carbide drill bit (2) Carbide indexable blade drill The drill with indexable carbide inserts can process a wide range of aperture sizes, and the processing depth ranges from 2D to 5D (D is the aperture), which can be used in lathes and other torsional machining machines. (3) Welded carbide drill bit The weld
Hollow bit material and classification
2021 / 12 / 31
Hollow drill material can be divided into hard alloy steel, high-speed steel, powder metallurgy, tungsten steel drill class, general use most is cemented carbide on the market, and high speed steel is commonly used type, hard alloy hollow drill its advantages of wear-resisting durable, not easy to crash when playing a hard material, type and high speed steel is very sharp, drilling is faster, but more brittle, easily broken when playing a hard material. Hollow bit classification In addition to the traditional twist drill in the market, there are specialized for magnetic seat drill coring drill (also called hollow drill), this kind of drill adopts the principle of milling cutter, with high efficiency, good precision effect. General customers are choosing hollow bits (coring bits), specifications are: Ø 12-160 - mm. Only small holes must be made with a twist bit.
2021 / 12 / 24
Hello, everyone Today is the eve of Christmas, a very pleasant day, and I am very glad that we have the opportunity to be together today. Here, we not only feel the festive atmosphere of Christmas, but also appreciate the happiness and joy of the development of our company. Clouds, flowers bloom and fall, is another year, a year, under the leadership of General Zhu, unity and struggle, diligent and enterprising, pioneering and innovative, through hardships, to meet the brilliant, your pay let us moved, your spirit let us proud, your achievements let us proud! I hope you will carry forward the past, advance with The Times, cherish the past honors and achievements a hundred times, and turn it into a great driving force for progress.
2021 / 12 / 16
Hollow drill also known as core drill, hole opener, center drill, steel plate drill, magnetic drill, rail drill and so on. The main materials of drill are: high speed steel; Powder metallurgy; Cemented carbide. Hollow drill types and specifications are complete, suitable for all kinds of imported magnetic seat drill (magnetic drill) and general drilling, milling, boring, etc. The drilling efficiency is 8~10 times that of ordinary drill. Hollow drill (multi blade steel drill or core drill) is more efficient bit of annular cutting blade, the hole diameter from 12 mm to 150 mm, it is mainly used for drilling of steel members, such as steel structure engineering, rail transportation, Bridges, ships, machinery manufacturing, aerospace, and other areas of the hole drilling, the drilling performance is superior
2021 / 12 / 16
Hollow drill also known as core drill, hole opener, center drill, steel plate drill, magnetic drill, rail drill and so on. Bit classification: HSS bit, carbide bit, tungsten steel bit. Cutting depth: 25mm, 35mm, 50mm, 75mm, 100mm. Suitable for drilling RIGS: Germany overtone and other imported magnetic drilling and domestic hollow drilling. Specification: 12MM to 100MM.
2021 / 12 / 16
Coring drill is mainly used for steel plate and other products drilling tools, hollow drill with specialized machine coring drill. Thin-wall diamond coring bit: concrete core sample is drilled directly on structural concrete, and the compressive strength test is carried out after processing the core sample. This method is recognized as a more intuitive and reliable test method for testing concrete strength. For coring method and technical operation, please refer to "Technical Specification for Testing concrete Strength by Drilling Core method" officially issued in China. Hollow core bit and drill bit, mainly used for drilling tools for steel and other products, hollow drill with core bit on special machine, has the efficiency of fast, the characteristics of low cost, core drill bit blade is made of carbide end tooth geometry with three layers, brisk cutting, steel bit service life is long, the double smoothing handle interface, is suitable for the drill of the bell, etc. Carbide drill is also suitable for all kinds of vertical drilling machine, radial drilling machine, milling machine, lathe and so on.
The influence of the bit on cutting
2021 / 12 / 16
Hollow bit is a kind of hole machining tool suitable for portable tools. But because the hollow bit manufacturing process is more complex, and can not process blind hole, so it is not widely used in metal cutting processing, usually only in the processing of some large diameter or precious metal workpiece through hole or drilling equipment power is limited. Since there is no standard product for hollow bits, most hollow bits used for special material processing need to be developed by themselves. The influence of the posterior Angle The influence of rake Angle on cutting force: the change of rake Angle will affect the deformation degree of chip material, so as to change the cutting force. The larger the chip deformation, the greater the cutting force; The smaller the chip deformation, the smaller the cutting force. When the current Angle varies
Analysis and summary of 9 major problems of tap fracture
2021 / 12 / 07
1. Poor quality of taps: Main materials, CNC tool design, heat treatment, machining accuracy, coating quality and so on. For example, too big size difference at the transition of tap section or no design of transition fillet leads to stress concentration, which is easy to fracture at the stress concentration. The section transition at the junction of handle and blade is too close to the welding joint, resulting in the superposition of complex welding stress and stress concentration at the section transition, resulting in large stress concentration, resulting in the fracture of taps in use. Metal processing wechat, good content, worth paying attention to. For example, improper heat treatment. During the heat treatment of taps, cracks may occur if the taps are not preheated, overheated or overburned, tempered or cleaned prematurely before quenchi
2021 / 12 / 07
Thread is the most common way to connect mechanical parts, and tap is the most common tool to process internal thread. Proper selection of tap to process internal thread can ensure the quality of thread connection and prolong the service life of tap. Select the tap tolerance zone Domestic machine taps are marked with the middle diameter tolerance zone code: H1, H2, H3 respectively represent different positions of the tolerance zone, but the tolerance values are the same. The tolerance zone of hand tap is code H4, the tolerance value, pitch and Angle error are larger than that of machine tap, and the material, heat treatment and production process are also inferior to tha
2021 / 12 / 07
Straight flute tap It has the strongest versatility, the cutting cone part can have 2, 4, 6 teeth, short cone for impassable hole, long cone for through hole. As long as the bottom hole is deep enough, the cutting cone should be selected as long as possible, so as to share the cutting load of the teeth more, the service life is also longer. Spiral groove tap
2021 / 12 / 07
1. According to the different driving points: hand tap and machine tap 2. According to the processing method: cutting tap and extrusion tap 3. According to the thread being processed: metric coarse tooth tap, metric fine tooth tap, pipe thread tap, etc 4. According to its shape, it is divided into straight groove tap, spiral groove tap and spiral tip tap.
2021 / 12 / 07
Use method and precautions of tapping spanner First, when tapping with tap by hand on the clamp platform, the following points should be noted 1. Align the tap with the eye hole and judge with the eye to make the plane of the tap and the workpiece perpendicular. 2, the tap will turn, from the front and side, two aspects to observe, check whether the right, that is, whether the tap is perpendicular to the
Send Inquiry
Mr. alex
Tel:+86-0519-83150991
Fax:
Mobile Phone:+8613815045320
Email:alex@bomitools.com
Address:changzhou xinbei, Changzhou, Jiangsu
Related Products List
Mobile Site
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
Fill in more information so that we can get in touch with you faster
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.