The hottest tool solution to achieve high efficien

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Achieve efficient tool solutions

in metal processing, selecting appropriate tools according to the characteristics of the workpiece to be processed can give full play to the performance of the machine tool, improve production efficiency and reduce production costs. Considering the unit price, efficiency, service life and shortened auxiliary time, it will be found that the comprehensive production cost of a single product will be lower if high-speed, efficient and long-life cutters are selected

the use of high-speed and high-efficiency machining centers has enabled metal processing to embark on a high-speed and high-efficiency Road, but whether it is effective depends on the choice of cutting tools, because cutting tools are the most basic, effective and active factor to achieve high-speed and high-efficiency cutting. We contacted the world-famous tool manufacturers whose price is more than 400 yuan/cubic meter lower than that of mainstream enterprises, studied various relevant data such as the average tool cost and production cost in developed countries, and found that reducing the tool cost by 30% can reduce the single piece production cost by 1%; Increasing tool life by 50% can reduce production cost by 1%; Increasing the processing efficiency by 20% can reduce the production cost by 15%. This fully shows that using modern cutting technology, selecting high-speed and efficient cutting tools, giving full play to the performance and efficiency of machine tools to achieve the plumpness rate of recycled plastic raw material particles, and realizing high-speed and efficient cutting is the right way for the flexible production line of machining center to organize production, improve efficiency and reduce production costs

advanced tool characteristics

in addition to the good hardness, wear resistance, high strength and toughness that ordinary tools should have, the high-speed and efficient tools used in machining centers should also have:

1 Higher reliability, stable cutting, consistent quality, less tool change times and long service life

2. Higher installation accuracy and repeated positioning accuracy, good interchangeability and quick changeability

3. Serialize, standardize and generalize, and try to use machine clamped positionable tools and multi-functional composite tools

4. Good chip breaking, chip curling and chip removal performance ensure that the chips do not wrap around the tool and workpiece, do not damage the machined surface, and do not hinder the pouring of cutting fluid

there are many kinds of cutting tools available for high-speed and efficient machining centers. The following materials are commonly used:

1 Ceramic cutting tools have the characteristics of high hardness, good wear resistance, excellent heat resistance and chemical stability. They are not easy to bond with metal in machining, and are widely used in NC machining; Among them, alumina based ceramic cutting tools are suitable for the processing of carbon steel, alloy steel and cast iron materials; Silicon nitride based ceramic cutting tools are more suitable for the processing of high hard materials such as alloy cast iron and chilled cast iron, and the cutting speed can reach 500 ~ 1000m/min

2. Polycrystalline diamond (PCD) tools have very high service life and good accuracy in processing aluminum and aluminum alloy materials. The cutting speed can reach 1000 ~ 4000m/min, and the cutting speed of Boeing high-speed milling aluminum alloy has reached 5000 ~ 7500m/min. Compared with PCD, CVD diamond tools have higher hardness, better wear resistance, smaller friction coefficient, stronger chemical stability and thermal stability, and their service life is 2 ~ 3 times longer than PCD. The disadvantage is that their toughness is not as good as PCD. CVD diamond cutting tools are considered as a new generation of cutting tool materials with broad application prospects in the processing of automotive engine products, especially in the processing of aluminum and aluminum alloy materials

3. Cubic boron nitride (CBN) and polycrystalline cubic boron nitride (PCBN) tool materials have higher thermal stability and excellent chemical stability than PCD and VCD, and do not react with ferrous materials at 1200 ~ 1300 ℃; Its hardness and wear resistance are close to diamond, which is very suitable for processing cast iron and hardened steel. The higher the hardness of the processed material, the more it can reflect the advantages of cubic boron nitride tools. Because of its incomparable advantages in machining accuracy, cutting efficiency, tool life and other aspects, cubic boron nitride and polycrystalline cubic boron nitride tool materials have attracted more and more attention all over the world

4. Coated tools can be divided into CVD and PVD coated tools according to different coating methods, hard coated tools and soft coated tools according to the properties of coating materials, cemented carbide coated tools, high-speed steel coated tools and ceramic and superhard material coated tools according to different matrix materials, and nano coated tools have been developed recently. The coated tool can flexibly select the base material and coating material, so that the tool can obtain the required performance, improve the processing efficiency, improve the processing accuracy, prolong the tool life and reduce the processing cost

2. Composite machining tool

composite machining is a very effective means to successfully develop PC high-energy masterbatch, a new environmental protection material that can replace plastic in many fields, and improve machining efficiency. Several machining contents are completed in one machining with one knife, which reduces the number of tool changes, saves auxiliary time, and improves production efficiency. Step drill is the simplest and most common compound machining tool, and the drill with chamfer edge is the simplest step drill. In the processing of cylinder block and cylinder head hole system, this simple step drill is selected for the drilling processing of the hole orifice that needs chamfering, and good results have been achieved. For example, the Kenner straight groove 180 top angle TX stepped drill bit, when drilling, the radial force is almost zero, and the four linear blade belts are symmetrically distributed along the circumference, with good guidance and polishing effect, which greatly improves the straightness and position of the drilling. In the machining of cylinder block and cylinder head hole system, another composite bit selected is the TF bit with three cutting edges evenly distributed around the circumference. Its drill core is higher than the two edges. 2. The thickness of the thin plate should be more than 5mm (the drill bit of the workpiece below 5mm is thick and has high strength, which makes up for the weakness of poor toughness of cemented carbide; the front end of the tool tip has a special shape, which can be automatically centered without machining the central hole; more cutting edges increase the feed per revolution (up to 20m/min when cutting aluminum), with high strength, It can carry out high-speed cutting (up to 1000m/min when cutting aluminum), which greatly shortens the processing time and improves the processing efficiency. It is especially suitable for deep hole processing, with the dimensional accuracy up to H9, the position accuracy up to 11 m, and the roughness rz20 ~ 25

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