China Supal (Changzhou) Precision Tools Co.,Ltd Company News

Titanium alloy is widely used in aerospace, medical, automotive and other high-end manufacturing fields due to its excellent properties such as high specific strength, corrosion resistance and biocompatibility. However, its poor machinability—characterized by high cutting temperature, severe tool wear, and easy work hardening—poses great challenges to machining processes. To improve machining efficiency, reduce tool consumption and ensure workpiece quality, mastering the following three key points is essential, with a focus on coating selection and cutting parameter optimization.   Key Point 1: Understand the Machinability of Titanium Alloy   Before selecting coatings and setting cutting parameters, it is necessary to clarify the intrinsic characteristics of titanium alloy that affect machining, which is the basis for subsequent optimization:   • Low thermal conductivity: The thermal conductivity of titanium alloy is only 1/4~1/5 of that of steel. During cutting, most of the heat generated accumulates in the cutting zone (tool tip and workpiece contact area) instead of being dissipated through chips or workpieces, leading to extremely high local temperature (up to 800~1000℃), which accelerates tool wear and workpiece deformation. • High chemical activity: At high temperatures, titanium alloy is easy to react with oxygen, nitrogen and carbon in the air to form hard and brittle compounds (such as TiO₂, TiN, TiC), which will increase cutting force and cause abrasive wear of tools. It may also bond with the tool material, resulting in adhesive wear. • Work hardening tendency: Titanium alloy has a high yield strength and obvious work hardening effect. During cutting, the surface of the workpiece is prone to hardening layers (hardness can be increased by 20%~50%), which will scratch the tool and affect the surface quality of the subsequent machining.   Note: The P1 can be a comparison chart of thermal conductivity between titanium alloy and common metals, or a microscopic diagram of work hardening layer of titanium alloy after cutting.   Key Point 2: Rational Selection of Tool Coatings Tool coatings play a crucial role in titanium alloy machining by reducing friction, isolating high temperature, improving chemical stability and enhancing wear resistance. The selection of coatings should be based on the type of titanium alloy (such as Ti-6Al-4V, pure titanium), machining method (milling, turning, drilling) and machining requirements (roughing, finishing). Common high-performance coatings for titanium alloy machining are as follows:   2.1 Titanium Nitride (TiN) Coating TiN coating is a traditional hard coating with a hardness of about 2000~2500 HV and a low friction coefficient (0.4~0.6). It has good wear resistance and adhesion, and can effectively reduce adhesive wear between the tool and titanium alloy. However, its oxidation resistance is poor, and it will oxidize and fail when the temperature exceeds 500℃. It is suitable for low-speed roughing of pure titanium and low-alloy titanium, or machining scenarios with low cutting temperature.   2.2 Titanium Carbonitride (TiCN) Coating TiCN coating is an improved version of TiN, with a hardness of 2500~3000 HV, higher wear resistance and thermal stability than TiN. The addition of carbon element enhances the coating's resistance to adhesive wear and abrasive wear, and its oxidation resistance temperature is increased to 600~650℃. It is suitable for medium-speed turning and milling of Ti-6Al-4V and other commonly used titanium alloys, and can balance machining efficiency and tool life.   2.3 Aluminum Titanium Nitride (AlTiN) Coating AlTiN coating is a high-temperature resistant coating with excellent comprehensive performance, with a hardness of 3000~3500 HV and oxidation resistance temperature up to 800~900℃. The aluminum element in the coating forms a dense Al₂O₃ film at high temperature, which can effectively isolate the chemical reaction between titanium alloy and the tool substrate (such as carbide), and significantly reduce thermal wear and chemical wear. It is the preferred coating for high-speed finishing and semi-finishing of titanium alloy, especially suitable for high-temperature machining scenarios such as high-speed milling and deep-hole drilling.   2.4 Diamond-Like Carbon (DLC) Coating   DLC coating has an extremely low friction coefficient (0.1~0.2) and high hardness (1500~2500 HV), which can minimize the friction and adhesion between the tool and titanium alloy, and avoid work hardening caused by excessive cutting force. However, its thermal stability is poor (oxidation failure above 400℃) and it is brittle, so it is only suitable for low-speed, low-temperature finishing of pure titanium and soft titanium alloys (such as Ti-Gr2), and not for high-temperature roughing.   Note: The P2 can be a performance comparison table of different coatings (hardness, oxidation temperature, applicable scenario) or a physical diagram of coated tools for titanium alloy machining.   Key Point 3: Scientific Setting of Cutting Parameters   Cutting parameters (cutting speed, feed rate, depth of cut) directly affect cutting temperature, cutting force, tool wear and workpiece quality. For titanium alloy machining, the core principle of parameter setting is "low cutting speed, moderate feed rate, small depth of cut", so as to control cutting temperature and reduce work hardening. The following are the recommended parameters for common machining methods (taking Ti-6Al-4V, the most widely used titanium alloy, and carbide tools as examples):   3.1 Turning Parameters   • Cutting speed (vc): For roughing, the speed is 30~60 m/min; for finishing, it is 60~100 m/min. If using AlTiN coated tools, the speed can be appropriately increased to 80~120 m/min; for pure titanium, the speed should be reduced by 20%~30% to avoid excessive adhesion. • Feed rate (f): The feed rate is 0.1~0.3 mm/r for roughing and 0.05~0.15 mm/r for finishing. Too high feed rate will increase cutting force and work hardening; too low feed rate will cause the tool to rub against the workpiece, accelerating wear. • Depth of cut (ap): The depth of cut for roughing is 1~3 mm, and for finishing is 0.1~0.5 mm. It is not recommended to use a depth of cut less than 0.1 mm, because the tool will slide on the hardened layer of the workpiece, resulting in severe abrasive wear.   3.2 Milling Parameters   • Cutting speed (vc): For peripheral milling (roughing), the speed is 20~50 m/min; for finishing, it is 50~80 m/min. For face milling, the speed can be slightly higher, 40~70 m/min for roughing and 70~100 m/min for finishing. Coated tools can increase the speed by 10%~20%. • Feed rate per tooth (fz): The feed rate per tooth is 0.05~0.15 mm/tooth for roughing and 0.02~0.08 mm/tooth for finishing. For end milling of thin-walled workpieces, the feed rate should be reduced to avoid workpiece deformation. • Depth of cut (ap/ae): The axial depth of cut (ap) for roughing is 0.5~2 mm, and for finishing is 0.1~0.3 mm; the radial depth of cut (ae) is generally 50%~100% of the tool diameter.   3.3 Drilling Parameters   Drilling titanium alloy is prone to problems such as chip clogging, tool breakage and poor hole quality. The parameters should be set to facilitate chip removal:   • Cutting speed (vc): 10~30 m/min, which is lower than turning and milling, to reduce the temperature of the drill tip. • Feed rate (f): 0.1~0.2 mm/r, ensuring that chips can be discharged smoothly without clogging the drill flute. • Auxiliary measures: Use internal cooling drills to spray cutting fluid directly to the drill tip, which can effectively reduce temperature and flush chips; adopt intermittent drilling (drill in and out repeatedly) to avoid chip accumulation.   Note: The P3 can be a parameter setting diagram for turning/milling/drilling, or a curve diagram of the relationship between cutting speed and tool life.   Summary The key to successful titanium alloy machining lies in three aspects: first, fully understanding the machinability characteristics of titanium alloy to target optimization; second, selecting the appropriate tool coating according to machining scenarios to improve tool wear resistance and high-temperature stability; third, setting scientific cutting parameters to control cutting temperature and reduce work hardening. In actual production, it is also necessary to match with high-quality cutting fluid (preferred for water-based cutting fluid with good cooling performance, or oil-based cutting fluid for low-speed machining) and reasonable tool geometry, so as to achieve the best machining effect.  

In the pursuit of ultimate efficiency and precision in the field of modern machining, tool performance directly determines production efficiency and product quality. Our newly developed high-performance end mills provide you with a full range of precision machining solutions with innovative technology and excellent quality.     Core technology, excellent performance adopts advanced nano-coating technology, which significantly improves tool wear resistance and heat resistance, effectively reduces cutting resistance and extends service life; unique helical flute geometric design optimizes the chip path, reduces chip accumulation, and ensures stable and smooth machining; high-precision flute grinding process realizes micron-level machining accuracy, which meets the demanding machining requirements of complex curved surfaces and thin-walled parts. High-precision edge grinding process realizes micron-level machining accuracy, which meets the severe machining requirements of complex curved surfaces and thin-walled parts.     Multiple Advantages for Efficient Production Quiet and Low Vibration: The dynamically optimized design controls cutting vibration to a very low range, reduces operating noise by 30%, reduces equipment loss, and enhances the comfort of the operating environment. High-gloss surface: With precision cutting edge and chip removal performance, the surface roughness of the workpiece after machining can reach 0.8μm or less, eliminating the need for secondary polishing and saving machining time and cost. Ultra-long life: Tested, under the same working conditions, the tool life is 120% higher than traditional end mills, which reduces the frequency of tool change and improves the utilization of equipment.     Widely used to meet diversified needs Whether it is titanium alloy parts machining in the aerospace field, mold manufacturing in the automotive industry, or aluminum alloy precision parts production for 3C products, our end mills can perform stably, and cope with all kinds of complex materials and machining scenarios with excellent performance, which helps enterprises break through the technological bottlenecks and enhance the competitiveness of their products.     Professional service, worry-free From product selection to process optimization, our technical team provides one-to-one professional support; perfect after-sales protection system ensures quick response and problem solving, so that your production is worry-free. Choosing our end mills means choosing higher machining efficiency, lower overall cost and more reliable quality assurance. Contact us now to start a new experience of precision machining!

High dimensional accuracy: good stability of cemented carbide material and high manufacturing precision of flat bottom reamer cutting edge can make the hole size error after processing extremely small, which can control the hole tolerance in a very small range to meet the requirements of precision parts processing. For example, in aerospace parts processing, the hole size accuracy requirements are harsh, it can accurately ensure that the hole diameter meets the design standards.   Excellent shape accuracy: The flat bottom design enables the reamer to ensure the flatness and straightness of the bottom of the hole when machining blind holes, so that the cylindricity and other shape accuracies of the holes are good, which provides a reliable basis for the subsequent assembly and use of parts.   Low roughness: high hardness and wear resistance of cemented carbide, sharp and durable cutting edge of reamer, smooth cutting during machining, little extrusion and scraping on the hole wall, low surface roughness of the machined hole wall, which can reach Ra0.4 - Ra1.6μm, making the parts more beautiful and facilitating the installation of seals and fittings inside the holes. Strong durability: The high hardness and good thermal hardness of cemented carbide allow the flat bottom reamer to maintain the sharpness and integrity of the cutting edge under high speed and high load cutting conditions, and it is not easy to wear and breakage. Compared with ordinary reamers, it significantly reduces the frequency of tool change, improves machining efficiency, reduces tool costs, and is suitable for large-volume hole processing. Small cutting force: Reasonable tool geometry parameters design, with the advantages of carbide material, so that it cuts smoothly during cutting, small cutting force, can reduce machine power consumption, reduce the deformation of the workpiece, especially suitable for thin-walled, easy to deform the parts of the hole machining.

Dear customer.   Thank you for your interest and support of our factory! We are a manufacturer specializing in the production of carbide CNC tools, and we proudly offer personalized and customized services to meet your unique needs. Whether you need ODM (Original Design Manufacturing) or OEM (Original Equipment Manufacturing) services, we can meet your requirements.   Working with us, you can customize your product logo so that it fits perfectly with your brand image. We understand the importance of branding, so we are willing to work closely with you to ensure that your logo is displayed accurately and elegantly on your tools.   In addition, we also offer label customization services to make your products more unique and recognizable. You can choose the right label material, color and design style according to your market positioning and target audience. Our team will work with you to ensure that the quality and appearance of the label meets your expectations.   Our goal is to provide you with the highest quality customized tools and ensure your satisfaction. With state-of-the-art production equipment and an experienced team of technicians, we are able to produce products to your exacting standards.   If you are interested in our customization services or have any questions, our team would be more than happy to discuss with you further. Please feel free to contact us and let's work together to create unique tools that will bring success to your business.   Thank you again for choosing us as your partner!   Sincerely.   SUPAL TOOLS

Commonly used cemented carbide with WC as the tension factor, according to whether to participate in other carbides and is divided into the following three categories: (1) Tungsten-cobalt (WC+Co) Cemented Carbide (YG) "As long as processing pig iron" It consists of WC and Co, with high bending strength, toughness, good thermal conductivity, but poor heat resistance and wear resistance, and is used for processing cast iron and non-ferrous metals. Fine grain YG type cemented carbide (such as YG3X, YG6X), in the cobalt content Ray at the same time, its hardness and abrasion resistance is higher than YG3, YG6, strength and toughness is a little poorer, is practical for processing hard cast iron, austenitic stainless steel, heat-resistant alloys, hard bronze and so on. (2) tungsten, titanium and cobalt (WC + TiC + Co) cemented carbide (YT) "intense processing of cooked iron" Due to the hardness and melting point of TiC than WC are higher than YG, compared with its hardness, wear resistance, red hardness increase, bonding temperature is high, oxidation resistance is strong, and at high temperatures will generate TiO 2, can be eliminated bonding. But the thermal conductivity is poor, low flexural strength, so it is practical for processing steel and other tough materials. (3) tungsten, titanium, tantalum and cobalt (WC + TiC + TaC + Co)) Cemented Carbide (YW YS) "intense processing of heat-resistant steel, high manganese steel, stainless steel and other difficult to process materials". TaC(NbC) is added on the basis of YT type of cemented carbide, which improves the bending strength, striking toughness, high temperature hardness, oxygen resistance and wear resistance. It can process steel, cast iron and non-ferrous metals. Therefore, it is often called general-purpose cemented carbide.

Compared with standard milling cutters, high -speed steel ball head milling cutters are characterized by: The appearance is simple, bright, unique, novel, and layered; Geometric accuracy is increased by 40%compared to standard products. It is recommended for crude milling, semi -essence milling, and suitable for essence milling; Increase the smoothness of the front and rear corners, making the blade sharp and slightly brisk. The width of the rear angle increased by 15%. Interest improvement, stable and reliable; After the unique process, the service life is twice the standard milling cutter, which has a high cost performance. General equipment that can be used for traditional milling methods and can be used for CNC equipment. The milling cutter is used for high -hardness material processing, and the hardness HRC50 ~ 55 degrees of processing workpiece. Use ZUI new coating and nano -grade tungsten steel raw materials. Using short -edge design, suitable for high -speed milling; dry cutting can also be achieved. The trail header and diameter flat head -shaped milling cutter is designed with sharp rounded angle (a little R angle). The micro -diameter ball head milling cutter can reduce the blade and increase the service life of the tool. High -speed steel ball head milling cutter can milling mold steel, cast iron, carbon steel, alloy steel, tool steel, and general iron, belongs to the vertical milling cutter. The head milling cutter can work normally in high temperature environments. High -speed steel ball head and milling cutter: widely used for various curved surfaces, arc groove processing. High temperature resistance: ZUI high temperature 450-550/500-600 degrees Celsius. The blade of the high -speed steel ball head milling cutter large R angle is stronger than the tip of the end milling cutter, and it is not easy to collapse, that is, the life span is stable than the end milling cutter. In addition, when it is used for 3D processing, the processing area of the ball knife is R Corner blade, processing spacing and cutting depth can be used to use larger values. The processing efficiency is improved and the quality of the processing surface is improved.

There are many CNC toolholders among which are: side fixed toolholders, heat shrinkable toolholders, reducer set toolholders, powerful CNC toolholders etc. With the development of machine tools to high-speed, high-precision direction, the spindle speed has increased significantly, but in order to play high-speed machine tools should be cutting accuracy and dynamic balance capabilities, in addition to the good design of the machine itself, with the appropriate CNC toolholder and cutting tool is also an important factor to effectively protect the life of high-speed spindle, to ensure the normal operation of the machine tool. 1. Use protective gloves and other protective equipment when removing the toolholder and installing it on the machine. 2. Replace tools in a timely manner. 3. Strictly adhere to the prescribed usage methods. 4. Do not use in conditions that may cause high temperatures. 5. Do not use in places where there is a risk of fire or explosion. 6. Clean the surface of the mounting base and fastening parts regularly to ensure that no foreign objects are attached. 7. Stop the machine, wear protective gloves and use tweezers, pliers or other tools to remove the tool shank.

What happens when the tool vibrates on a milling cutter? As there is a small gap between the milling cutter and the tool holder, the tool may vibrate during the machining process. The vibration will cause the milling cutter's circumferential edge to eat unevenly, and the cutting expansion will increase compared to the original value, resulting in consequences that will affect the accuracy of the machining and the life of the tool. However, when the width of the groove machined is small, the tool can be effectively made to vibrate, after this increase in cutting and expanding the amount of the required groove width can be obtained, reminded that in this case, the milling cutter should be more amplitude is 0.02mm or less, otherwise it can not be stable cutting. The lower the vibration of the milling cutter in normal machining, the better. When tool vibration occurs, consider reducing the cutting speed and feed rate, if both have been reduced by 40% and there is still a large vibration, consider reducing the tool draft. If the machining system resonates, the reason may be that the cutting speed is too large, the feed rate is small, the tool system is not rigid enough, the workpiece clamping force is not enough and the shape of the workpiece or the workpiece clamping requirements and other factors, then you should take measures to adjust the cutting amount, increase the rigidity of the tool system, improve the feed rate. Carbide milling cutter rotation operation can be divided into two kinds. The following is a brief analysis of your come Bao tool manufacturers: Firstly, the direction of rotation of the milling cutter is the same as the cutting feed direction. At the start of the cut, the milling cutter bites into the workpiece and cuts off the chips. Rotational operation of the carbide milling cutter Another type of milling is reverse milling, where the milling cutter rotates in the opposite direction to the cutting feed. Before starting to cut, the milling cutter has to slide over the workpiece for a period of time, starting from zero cutting thickness and reaching a maximum cutting thickness at the end of the cut. The cutting forces of the three-sided edge milling cutter are in different directions, some end milling or face milling. In face milling, the milling cutter is just outside the workpiece, so the direction of the cutting force should be paid more attention to. In forward milling the cutting forces force the workpiece into the table, in backward milling the cutting forces force the workpiece off the table. Forward milling is generally used due to the better cutting results, and backward milling is only considered if there is thread clearance or insurmountable problems with forward milling.

Stainless steel tungsten steel milling cutters are coated with a few microns of high hardness, high wear resistance refractory Ti-Al-X-N coating by vapor deposition on the surface of high strength tool substrate to reduce tool wear, extend tool life and increase cutting speed. Milling tools The core technology of bearing tools: machine tools are called "machines that make machines". If CNC machine tool is the art work of modern industrial civilization, then carbide cutting tool is the diamond on the art work, and the diamond's light comes from the coating on the surface of the tool which is several microns thick. Coated tools have high surface hardness, good wear resistance, stable chemical properties, heat resistance, oxidation resistance, low coefficient of friction, low thermal conductivity, etc. The reason for this is that the coating material acts as a chemical barrier and thermal barrier, reducing the diffusion and chemical reaction between the tool and the workpiece, thus reducing the wear of the tool and increasing the tool life by more than three times and the cutting speed by 20% and 100%. It can be said that the thin coating carries the core technology of the tool. At present, the proportion of coated tools in cutting tools has reached 80%. As foreign companies occupy a monopoly in the field of tools, the status of tools and their core coating technology has been paid more and more attention in the special projects of CNC machine tools in China, and the breakthrough of coating technology has been incorporated into many topics.

What kind of milling cutter is used for processing aluminum alloy? Is it a special tool for aluminum alloy to make it better? We mainly talk about what milling cutters are used for machining tools and cutting parameters from several aspects of processing tools and cutting parameters. 1. The processing characteristics of aluminum alloy Milling aluminum alloy mainly has the following major characteristics: 1. Low aluminum alloy hardness Compared with the titanium alloy and other quenching steel, the hardness of aluminum alloy is low. Of course, the heat treatment is too high, or the hardness of the die -cast aluminum alloy is also very high. The HRC hardness of ordinary aluminum plates is generally below HRC40 degrees. Therefore, when machining aluminum alloy, the carrier of the tool is small. Because of the better thermal conductivity of aluminum alloy, the cutting temperature of the milling aluminum alloy is relatively low, which can improve its milling speed. 2. Low aluminum alloy plasticity The plasticity of aluminum alloy is low, and the melting point is low. When processing aluminum alloy, its adhesive knife is serious, with poor cripping performance, and the surface roughness is relatively high. In fact, the processing aluminum alloy is mainly the effect of sticky knife and roughness. As long as the two major problems of the sticky knife and the surface quality of the processing are solved, the problem of aluminum alloy processing is solved. 3. The tool is easy to wear Because the unsuitable tool material is adopted, when processing aluminum alloy, the tool wear is often accelerated due to the problems of sticky knives, crumbs and other problems. 2. What milling cutter is used for processing aluminum alloy? Machining aluminum alloys are generally used for milling cutters with 3 blade aluminum. Secondly, due to the differences in processing, 2 -edge ball head knives, or 4 blade flat knives. However, in Dahai, Dongguan, it is recommended that in most cases, you can choose a 3 -blade flat bottom milling cutter. 1. Material of high -speed steel High -speed steel aluminum milling cutter is more sharp, and can also process aluminum alloy well. 2. The choice of aluminum tungsten steel milling cutter Materials generally choose YG hard alloys, which can reduce the chemical affinity of the tool and aluminum alloy. General CNC -control tool brands have all -in products for processing aluminum alloy. Third, the cutting parameters of the milling aluminum alloy Machining ordinary aluminum alloys can generally choose high -speed advance to milling. Secondly, choose the larger front angle as much as possible to increase the space of the crumbs and reduce the phenomenon of sticky knife. If it is precision machining aluminum alloy, a water cutting fluid cannot be used to avoid forming a small pinhole on the processing surface. Generally, kerosene or diesel can be used for processing aluminum plate cutting fluid. The cutting speed of the machining aluminum alloy milling cutter is different due to the material and parameters of the milling cutter. The specific cutting parameters can be processed based on the cutting parameters given by the manufacturer.