November 27, 2020 in Travels
Cutting tools are tools used for cutting in machine manufacturing. Most tools are machine-use, but there are also hand-use. Since the tools used in machine manufacturing are basically used to cut metal materials, they can also be called cutting tools. Knives for cutting wood are called woodworking knives. China’s cutting tools wholesale industry and manufacturing industry are still dominant in overall terms.
Tool materials are roughly divided into the following categories: high-speed steel, cemented carbide, cermet, ceramic, polycrystalline cubic boron nitride and polycrystalline diamond.
Because of the needs of the development of the manufacturing industry, multifunctional composite tools, high-speed and high-efficiency tools will become the mainstream of tool development. Faced with the increasing number of difficult-to-machine materials, the tool industry must carry out material innovation and new product development as well as a more reasonable tool structure.
Cemented carbide materials and coating applications have increased. Fine-grained and ultra-fine-grained cemented carbide materials are the development direction; nano-coating, gradient structure coating and new structure and material coating will greatly improve the performance of tools; the application of physical coating (PVD) continues to increase.
The application of new tool materials has increased. The toughness of tool materials such as ceramics, cermets, silicon nitride ceramics, PCBN, PCD, etc. is further enhanced, and applications are increasing.
Cutting technology is developing rapidly. High-speed cutting, hard cutting, and dry cutting continue to develop rapidly, and the scope of application is rapidly expanding.
In addition to the rapid development of cutting tools, the development of threading tools is also becoming more and more rapid. In addition to electricians, there are more and more places where people need to use threading tools in their daily lives, such as pipes and wires. Many people like to do it themselves, and some people make their own threading tools when they are bored, and the results are very good. This also makes both the material of the threading tool and the threading tool very popular today. Of course, some people choose to use an automatic threading machine for convenience and effort. Of course, the automatic threading machine can be produced and naturally has its advantages, but many wire workers still choose to thread the thread manually. Both have their own advantages. How to choose depends on your own needs.
November 20, 2020 in Travels
The materials used to make cutting tools must have high high temperature hardness and wear resistance, as well as certain necessary bending strength, impact toughness and chemical inertness, and good manufacturability (cutting, forging, heat treatment, etc.), which is not easy Deformed.
Generally, when the hardness of the material of the cutting tool is high, the wear resistance will increase accordingly; when the bending strength is high, the impact toughness will also be high. But under normal circumstances, the higher the material hardness, the lower its flexural strength and impact toughness. High-speed steel is still the most widely used cutting tool material because of its high bending strength, impact toughness, and good machinability, followed by cemented carbide.
Polycrystalline cubic boron nitride is suitable for cutting high hardness hardened steel and hard cast iron, etc.; polycrystalline diamond is suitable for cutting non-ferrous metals and alloys, plastics and glass steel, etc.; carbon tool steel and alloy tool steel can only be used For files, dies and taps and other tools.
The cemented carbide indexable inserts are coated with titanium carbide, titanium nitride, aluminum oxide hard layer or composite hard layer by chemical vapor deposition. The physical vapor deposition method under development can be used not only for cemented carbide cutting tools, but also for high-speed steel cutting tools, such as drills, hobs, taps and milling cutters. The hard coating acts as a barrier to hinder chemical diffusion and thermal conduction, slowing down the wear rate of cutting tools during cutting, and the life of the coated blade is approximately 1 to 3 times longer than that of the uncoated blade.
Due to the high temperature, high pressure, and high speed, more and more difficult-to-machine materials are used for parts that work in corrosive fluid media, and the automation level of cutting and the requirements for machining accuracy are getting higher and higher. In order to adapt to this situation, the development direction of cutting tools will be the development and application of new cutting tool materials; the further development of vapor deposition coating technology for cutting tools, the deposition of higher hardness coatings on high toughness and high strength substrates, and more Solve the contradiction between the hardness and strength of cutting tool materials; further develop the structure of indexable cutting tools; improve the manufacturing accuracy of cutting tools, reduce the difference in product quality, and optimize the use of cutting tools.
The above are the materials that will be used in the cutting tools wholesale market.
November 13, 2020 in Travels
As a main material for high-speed cutting, cutting tool materials are constantly developing, and this situation will not change much in the future. So how much do you know about the materials of cutting tools?
Cutting tool material refers to the material used to manufacture cutting tools for machining. The properties that the tool material must have are hardness (HRC60 or more), strength and toughness, thermal hardness, thermal strength, wear resistance and manufacturability.
Commonly used cutting tool materials include carbon tool steel, alloy tool steel, high-speed steel, cemented carbide, alumina-based ceramics and silica-based ceramics, synthetic diamonds, cubic boron nitride, etc.
A cutting tool for processing soft materials, characterized in that: on the surface of a base material composed of a hard material, a convex portion with a cutter ridge line is formed protruding upward, and at the same time, it is in contact with at least the convex portion A pressing part is formed adjacent to the front side in the cutting direction of the material to be cut and protruding upward, and the height of the pressing part is lower than the height of the above-mentioned convex part.
People use cutting tools to process and produce metal, plastic, rubber, wood and other parts. Cutting tool materials can be divided into two major categories.
The first is the widely used tool steel
The second is cutting alloy
According to the different chemical composition, performance and application range of tool steel, it can be divided into a series of different grades, such as load and heat resistance grade. It can keep its performance unchanged under high temperature conditions.
At present, it can be seen in the market that with the introduction of CNC machine tools and various special-purpose machine tools, as cutting processing automation and energy saving tools, the reliability of tool materials has become an important condition that should be possessed. The characteristics of cutting tools are that they require resistance Wearability and durability; generally speaking, reliability refers to durability. To meet such requirements, it is necessary to use highly versatile tool materials that do not damage wear resistance and increase toughness.
The above is a brief introduction of cutting tool materials brought to you by Hangzhou Jeeja Import and Export Co., LTD You are welcome to watch.
November 6, 2020 in Travels
Cutting tools are tools used for cutting in machine manufacturing. Most tools are machine-use, but there are also hand-use tools. Since the tools used in mechanical manufacturing are basically used to cut metal materials, the term “tool” is generally understood as a metal cutting tool. Tools used for cutting wood are called woodworking tools. Hangzhou Jeeja Import and Export Co., LTD manufactures cutting tools wholesale.
Tools can be divided into five categories according to the form of the workpiece surface:
- Tools for processing various external surfaces, including turning tools, planers, milling cutters, external surface broaches and files, etc.
（2） Hole processing tools, including drills, reaming drills, boring cutters, reamers and inner surface broaches, etc.
（3） Thread processing tools, including taps, dies, automatic opening and closing thread cutting heads, thread turning tools and thread milling cutters, etc.
（4） Gear processing tools, including hobs, gear shaping cutters, gear shaving cutters, bevel gear processing tools, etc.
（5） Cutting tools, including toothed circular saw blades, band saws, bow saws, cutting tools, saw blade milling cutters, etc.
In addition, there are combination tools.
According to the cutting motion mode and the corresponding blade shape, tools can be divided into three categories:
- General tools, such as turning tools, planers, milling cutters (excluding formed turning tools, formed planers and formed milling cutters), boring cutters, drills, reamers, reamers and saws, etc.
- Forming tools. The cutting edge of this type of tool has the same or nearly the same shape as the section of the workpiece to be processed, such as forming turning tools, forming planers, forming milling cutters, broaches, conical reamers and various thread processing tools, etc.
- Generating tools are used to process gear tooth surfaces or similar workpieces by the generative method, such as hobs, gear shapers, gear shaving cutters, bevel gear planers, and bevel gear milling cutters.
The materials used for manufacturing tools must have high high temperature hardness and wear resistance, necessary bending strength, impact toughness and chemical inertness, good manufacturability (cutting, forging, heat treatment, etc.), and not easy to deform.
Generally, when the material hardness is high, the wear resistance is also high; when the bending strength is high, the impact toughness is also high. But the higher the material hardness, the lower its flexural strength and impact toughness. Due to its high bending strength, impact toughness, and good machinability, high-speed steel is still the most widely used tool material in modern times, followed by cemented carbide.
Polycrystalline cubic boron nitride is suitable for cutting high hardness hardened steel and hard cast iron, etc. polycrystalline diamond is suitable for cutting non-ferrous metals, alloys, plastics and glass steel, etc.; carbon tool steel and alloy tool steel are only used Tools such as files, dies and taps.
Hard alloy indexable inserts have been coated with titanium carbide, titanium nitride, aluminum oxide hard layer or composite hard layer by chemical vapor deposition. The physical vapor deposition method under development can be used not only for cemented carbide tools, but also for high-speed steel tools, such as drills, hobs, taps and milling cutters. The hard coating acts as a barrier to hinder chemical diffusion and heat conduction, slowing down the wear rate of the tool during cutting, and the life of the coated blade is approximately 1 to 3 times longer than that of the uncoated blade.
Due to the parts that work under high temperature, high pressure, high speed, and corrosive fluid medium, more and more difficult-to-machine materials are used, and the automation level of cutting processing and the requirements for machining accuracy are getting higher and higher. In order to adapt to this situation, the development direction of tools will be the development and application of new tool materials; the further development of vapor deposition coating technology for tools, the deposition of higher hardness coatings on high toughness and high strength substrates, and a better solution The contradiction between the hardness and strength of tool materials; further develop the structure of indexable tools; improve the manufacturing accuracy of tools, reduce differences in product quality, and optimize the use of tools.
Tool materials are roughly divided into the following categories: high-speed steel, cemented carbide, cermet, ceramic, polycrystalline cubic boron nitride and polycrystalline diamond.
October 30, 2020 in Travels
Hangzhou Jeeja Import and Export Co., LTD was established in the capital of Zhejiang Province, the core city of Hangzhou Metropolitan Area, Hangzhou, known as “paradise on earth”. The company’s office address is located on the south bank of the second phase of Xianghu Financial Town, Xiaoshan District, Hangzhou City, Zhejiang Room 137-025, Building 3, the company is determined to forge ahead, unite and forge ahead, adhere to the basic principles of customer first, user first, and actively expand business ideas.
Over the years, the company has consistently adhered to the principle of service for development, and has formed a benign corporate operating mechanism. The company is also a professional manufacturer of bi-metal hole saw, Carbide Gritted Hole, high Carbon Steel Ho, Tool Set and other products, and has a complete and scientific quality management system. The integrity, strength and product quality of Hangzhou Jiehejia Import and Export Co., Ltd. have been recognized by the industry.
The company mainly deals in hardware tools, mechanical and electrical products, metal materials, mechanical equipment and accessories, labor and cutting tools, auto and motorcycle accessories, food, daily necessities, cosmetics, skin care products, detergents, general labor protection products, handicrafts, textile fabrics, Apparel and apparel, leather products, shoes and hats, photographic equipment, toys, audio equipment and equipment, plastic products, rubber products, paper products, office supplies, printing equipment, printing products (except publications), electronic products, communication equipment, fitness equipment , Building materials, decorative materials, ceramic products, furniture, electrical appliances, solar products, chemical raw materials and products (except dangerous chemicals and precursor chemicals); technology development and technical consultation in the fields of digital technology, textile technology, and printing , Technical services, technology transfer; engaged in the import and export of goods and technology, etc.
With sincere enthusiasm, we welcome businessmen at home and abroad to cooperate sincerely and create brilliance together. Welcome your message or call.
September 25, 2020 in Travels
The Bi-metal hole saws is directly produced by using the heat-treated bi-metal hole saws. The bi-metal made high-speed steel saw teeth of high alloy steel fuselage has many advantages, such as less vibration and faster sawing performance, and more stable anti-cracking during sawing operation.
1. The service life of the hole saw is prolonged by 30% by adopting bi-metal material.
2. Adding 8% cobalt to the material makes the sawtooth harder. It can cut a wide range of materials such as wood, gypsum board, artificial marble board, plastic products, non-ferrous metals, aluminum, steel plate, stainless steel plate, etc.
3. The uniquely designed variable tooth hole saw can not only achieve fine cutting of equal tooth hole saw, but also achieve the advantages of fast cutting and easy chip removal of variable tooth hole saw, which has dual functions.
4. Compared with other hole saws, it is not easy to pull teeth, drop teeth and long saw.
5. The cutting depth reaches 38mm.
6. The cutting diameter ranges from 14mm-210mm.
7. Precautions for use: When cutting wood, lift the electric tools up and down to facilitate chip removal. It is best to use coolant when cutting metal materials to prolong the service life of hole saws.
September 18, 2020 in Travels
Wood Auger Drill Bit is a commonly used drilling tool, which has a simple structure. Grinding the drill well is very important for workpiece processing, but it is not an easy task to really grind it well. The key lies in mastering the grinding methods and skills, and mastering the methods, coupled with many grinding experiences, can well grasp the grinding scale of the drill bit.
1. Before grinding the drill bit, place the main cutting edge of the drill bit on a horizontal plane with the grinding wheel surface, that is to say, when the cutting edge contacts the grinding wheel surface, the whole edge must be ground. This is the first step in the relative position between the drill bit and the grinding wheel, and then slowly lean toward the grinding wheel surface.
2. This angle is the front angle of the drill bit. If the angle is wrong at this time, it will directly affect the size of the top angle of the drill bit, the shape of the main cutting edge and the bevel angle of the transverse edge. Here refers to the positional relationship between the axis of the drill bit and the surface of the grinding wheel. Here, we should pay attention to the relative horizontal position and angular position of the drill bit before grinding, and give overall consideration to both, and don’t neglect the setting angle for balancing the cutting edge, or neglect the balancing of the cutting edge for balancing the angle.
3. After the cutting edge contacts the grinding wheel, it should be grinded from the main cutting edge to the back, that is, the cutting edge of the drill bit first contacts the grinding wheel, and then slowly grinds down along the whole flank. When the drill bit cuts in, it can touch the grinding wheel gently. First, a small amount of grinding should be carried out, and the uniformity of sparks should be observed, the pressure on the hand should be adjusted in time, and the cooling of the drill bit should be paid attention to. It should not be over-ground, causing discoloration of the cutting edge and annealing of the cutting edge. When it is found that the cutting edge temperature is high, the drill bit should be cooled in time.
4. This is a standard drill grinding action. The main cutting edge should swing up and down on the grinding wheel, that is, the hand holding the front part of the drill should swing the drill up and down evenly on the grinding wheel surface. However, the hand holding the handle cannot swing, and the back handle should be prevented from tilting upwards. This is the most critical step, because the bit is worn well or badly, which has a great relationship with it. When the grinding is almost the same, start from the cutting edge and rub it gently at the back corner to make the back of the blade smoother.
5. After grinding one edge, grind the other edge. It must be ensured that the edge is in the middle of the bit axis, and the edges on both sides should be symmetrical.
6. After grinding the two edges, pay attention to grinding the tip of the bit with larger diameter.
After grinding the two edges of the drill bit, there will be a plane at the tip of the two edges, which will affect the center positioning of the drill bit. It is necessary to reverse the angle behind the edges to make the plane at the tip as small as possible. The method is to erect the drill bit, align it with the angle of the grinding wheel, and pour a small groove at the root behind the blade against the tip of the blade. This is also an important point for bit centering and light cutting. Pay attention to the fact that when grinding the chamfer of the tip, it must not be ground on the main cutting edge, which will make the rake angle of the main cutting edge too large and directly affect the drilling.
There is no certain formula for grinding the drill bit, so it is necessary to accumulate experience in practical operation, explore through comparison, observation and repeated experiments, and add certain human intuition to grind the drill bit better
September 11, 2020 in Travels
As we all know, with the high speed of spindle in machining centers at home and abroad, and the development of hot-sleeve tool technology, it has gradually become a major mainstream to process high-strength and high-speed materials, which also makes HSS Cobalt Drill Bit with high quality and stable performance play an important role in major processing industries. So how to choose this indispensable HSS cobalt drill bit?
1. Look at the cutting parameters
Generally speaking, when choosing HSS cobalt drill bit, the cutting parameters are mainly cutting speed and feed speed, and the selection of this cutting parameter will be affected by many aspects such as cutting tool system, machine tool and clamping mode. If the speed requirement is high, HSS cobalt drill bit with these two parameters should be chosen. Of course, this specific speed can be adjusted appropriately during specific operation, but the adjustable range and limit value will be different.
2. Look at the machining accuracy
It can’t be denied that HSS cobalt drill bit with different price and quality can achieve different machining accuracy. Therefore, if there are high requirements for workpiece accuracy, HSS cobalt drill bit with slightly higher price and high ball head accuracy can be selected.
3. Look at the shape and processing depth of the workpiece
Because there are several kinds of HSS cobalt drill bit, which are generally divided into standard type, long neck type and taper neck type, which one should be selected according to the requirements of the shape and machining depth of the workpiece to be machined. Generally speaking, the taper neck type HSS cobalt drill bit has better hardness and rigidity, which can further optimize the cutting conditions and achieve better machining accuracy.
Therefore, if we want to choose a high-end practical HSS cobalt drill bit, we can choose the desired machining effect of the workpiece and the shape of the workpiece itself. In addition, we can choose HSS cobalt drill bit with different coatings according to the type and hardness of the workpiece.
September 4, 2020 in Travels
The biggest advantage of one-stop supply is to improve the efficiency of procurement and effectively reduce the time and cost of procurement. Choosing the right cutting tools starts with understanding. Only by clearly knowing the purpose and introduction of each cutting tool can you better cutting tools wholesale you need.
Lathe machining is a very wide field, and in this huge manufacturing field, there are countless lathe factories producing products in different fields, including aviation retail, parts in automobile field, parts in mobile phone electronic products field, and medical tools field, and the products developed in these different fields require different tools. Today, what are the main products of cutting tools?
Drill bits and drilling are the most common products, and different drilling bits have their own advantages, while twist drill is the most commonly used drill bit in drilling field, such as bench drilling, lathe drilling and CNC drilling, which are divided into standard drill bits and non-standard custom drill bits. Drilling seems simple, but it is highly sophisticated.
Thread machining is the most common process in the field of fasteners, and there are two lathe tools used in thread machining, one is called tap, which is used for lathe tapping, and the other is called thread milling cutter, which is used for CNC milling. Different processing methods, different efficiency and different applicable fields, but the ultimate goal is to process qualified threads.
Turning tools on lathe, welding turning tools, cutting grains and blades, and turning is an essential process for lathe manufacturing. Although no process is needed for a product, cutting and slotting, and fine turning of outer diameter are essential, so turning cutting tools for turning cutting grains and blades on lathe is also one of the most important tools. There are many welding turning tools for ordinary lathes, while CNC machining centers of CNC lathes mainly focus on cutting grains and blades.
The above three cutting tools are basically the three most commonly used tools in lathe manufacturing, and because of the huge consumption of these three tools, the market supply and demand standard can say that the number of brands is greater than the number of consumption, so choosing the appropriate brand tools is the top priority to improve the productivity.