Which Chinese Manufacturer Has The Most Complete Range Of Turning Tool Blades

Kunshan Meiyaxing Hardware Machinery Co., Ltd. is a direct branch of Hong Kong Meiya International Trading Company in China. It has its own tool brand: MANF, engaged in CNC tool sales and operation services. Provide tungsten steel milling cutters, milling blades, lathe blades, grooving and cutting blades, drilling and boring blades, multi-functional blades, threading blades and other indexable blades and their matching tool holders and cutter discs. And reached long-term strategic cooperation with many well-known production factories. The two sides jointly developed, designed, and produced teams, advanced equipment, and continuously innovative technical strength. They are committed to mutual cooperation, guided by technical services, and formed a form of mutual reliance in the industrial chain to solve various processing problems for processing and manufacturing companies. There are many varieties classified by blade material:
Blade shape and parameters: the password for precise processing
(I) Common blade shapes
In the world of lathe tool blades, blade shapes are rich and varied, and each one contains unique design ingenuity, designed to cope with various complex and changing processing needs.
S C-shaped blade: Like an all-around warrior, it has four cutting edges. Although the cutting edges are relatively short (under the same inscribed circle diameter), its tip strength is quite outstanding and has strong impact resistance. This feature makes it the first choice for 75° and 45° turning tools, and it performs well in processing external circles and end faces; at the same time, it can also show its prowess in the field of internal hole tools, especially good at processing through holes, providing a stable and reliable solution for internal hole processing.
T-shaped blade: It comes on stage with three slender cutting edges. It seems that the cutting edges are long and the cutting edge strength is low, but it actually hides a mystery. On the stage of ordinary lathes, it often partners with blades with secondary deflection angles, cleverly making up for the lack of its own cutting edge strength, thus transforming itself into a capable general of 90° turning tools, accurately cutting the external circle of the workpiece; in the camp of internal hole turning tools, it is mainly responsible for overcoming difficulties such as blind holes and step holes, and has made great contributions to complex internal hole processing.
C-shaped blade: It comes on stage with three slender cutting edges. It seems that the cutting edges are long and the cutting edge strength is low, but it actually hides a mystery. On the stage of ordinary lathes, it often partners with blades with secondary deflection angles, cleverly making up for the lack of its own cutting edge strength, thus transforming itself into a capable general of 90° turning tools, accurately cutting the external circle of the workpiece; in the camp of internal hole turning tools, it is mainly responsible for overcoming difficulties such as blind holes and step holes, and has made great contributions to complex internal hole processing. shaped blade: Like a master with dual skills, it has two tool tip angles. Among them, the two tool tips with a 100° tool tip angle are like a solid fortress with extremely high strength. They are often made into 75° turning tools, shouldering the heavy task of rough turning the outer circle and end face, and quickly removing a large amount of excess with strong cutting force; the two cutting edges with an 80° tool tip angle are also not inferior, with high strength and excellent versatility. They can smoothly process end faces or cylindrical surfaces without frequent tool changes. In the inner hole turning tool sequence, they are often used to process step holes to ensure high precision and high efficiency of processing.
R-shaped blade: It is unique with its unique round cutting edge, like an artist, born for carving special arc surfaces. It can fit the arc contour closely, realize high-precision curved surface processing, and the blade utilization rate is extremely high. However, this unique shape also brings a certain "personality", which will generate large radial forces during the processing process, so it puts higher requirements on the rigidity and stability of the machine tool, just like choosing a suitable stage for a picky artist.
W D-shaped blade: Three shorter cutting edges with an 80° tool tip angle make it show extraordinary strength in the processing of ordinary lathes. It is like a precise engraver, mainly used for the processing of cylindrical surfaces and step surfaces. It can carve the workpiece into an ideal shape with high precision and surface quality to meet various conventional processing needs.
D-shaped blade: With two narrow and long cutting edges and a 55° tool tip angle, it looks weak, but it is actually a master of profiling. When it turns into a 93° turning tool, the cutting angle is precisely controlled within the range of no more than 27° - 30°; when it becomes a 62.5° turning tool, the cutting angle is also strictly limited to 57° - 60°, ensuring high precision when profiling complex contours. When processing inner holes, it can use its slender cutting edge to penetrate deep into the step hole and the shallow root cleaning area to complete fine work, just like a skilled craftsman who does not miss any subtle details.
V-shaped blade: marked by two long cutting edges and a 35° blade tip angle, it focuses on the field of profiling. Under different angles of the turning tool, it can accurately control the cutting angle, such as the cutting angle is not greater than 50° for a 93° turning tool, not greater than 70° for a 72.5° turning tool, and not greater than 35° for a 107.5° turning tool, so as to perform fine cutting along the complex workpiece contour, making it possible to manufacture high-precision special-shaped workpieces, and is an indispensable tool for precision profiling.
(II) Interpretation of key parameters
In addition to different shapes, many parameters of turning tool blades are like passwords, accurately controlling every detail of the processing and determining the final processing results.
Cutting edge length: This parameter is like a precise ruler, closely related to the back cutting amount. Generally speaking, the cutting edge length of a through-groove blade needs to be carefully selected, usually ≥1.5 times the back cutting amount; while the closed-groove blade has a higher requirement for the cutting edge length due to its own structural characteristics, and should be ≥2 times the back cutting amount. Only in this way can we ensure that the blade has enough blade length to participate in the work during the cutting process, avoid the concentration of cutting force and premature wear of the blade due to insufficient blade length, and then ensure the stability and continuity of the processing, so that the surface quality of the workpiece is uniform.
The radius of the tip of the tool: just like the "shield" of the tip of the tool and the "magic wand" of the processing surface quality, the size selection contains a subtle trade-off. When rough turning, under the premise that the rigidity of the machine tool allows, a larger tip radius should be boldly selected. This is because a large radius can significantly enhance the strength of the tip of the tool, making it like a solid armor, easily resisting the strong impact during rough turning, and reducing the risk of chipping; at the same time, it can also effectively reduce the wear of the front and back of the tool and extend the life of the blade. When fine turning, the situation is slightly different, and a smaller arc radius is usually selected to pursue a higher surface finish. However, if the rigidity of the machine tool is good enough, increasing the arc radius appropriately can not only improve the surface quality, but also enhance the durability of the tool to a certain extent. For example, in the finishing process of high-precision shaft parts, finely adjusting the arc radius of the tool tip according to the performance of the machine tool can make the surface roughness of the workpiece reach an amazing Ra0.8 - Ra0.4μm, meeting extremely stringent processing requirements.
Blade thickness: It is undoubtedly a solid backing for the strength of the blade. Its selection needs to comprehensively consider the two key factors of back feed and feed. Just like choosing the right foundation stone for a high-rise building, only when the thickness is suitable can the blade be as stable as Mount Tai under the strong cutting force. Take ceramic blades as an example. Due to their relatively brittle material characteristics, when facing large cutting forces, thicker blades need to be selected to ensure their own strength and avoid damage during processing, thereby ensuring smooth processing, reducing scrap rate and improving production efficiency.
Back angle: It shoulders the heavy responsibility of reducing the friction between the back face of the tool and the workpiece. It is a key factor to ensure that the tool can smoothly cut into the workpiece, just like opening up an unobstructed cutting channel for the tool. The size of the back angle is closely related to the wear condition. Common specifications include 0° (code N), 5° (code B), 7° (code C), and 11° (code P). Among them, the 0° back angle is generally used in the rough and semi-finishing turning fields due to its large heat dissipation area and strong tool head strength; while the 5°, 7°, and 11° back angles, as the angle increases, the tool cuts into the workpiece more smoothly and wear is reduced. They are mostly used in semi-finishing, finishing, profiling, and inner hole processing, which require high precision processes to ensure the ultimate surface quality.
Precision: In the stage of high-precision processing, blade precision is undoubtedly a dazzling star. Indexable inserts follow strict national standards and stipulate up to 16 precision levels, of which 6 are suitable for the turning tool field, coded H, E, G, M, N, and U, with precision decreasing in sequence, H being the highest level and U being the lowest level. In the rough and semi-finishing scenes of general lathes, U-level precision blades can meet the basic machining accuracy requirements with their cost-effective advantages; and for those occasions with extremely high requirements for tool tip position accuracy, such as precision mold processing, aerospace parts manufacturing, or high-precision machining tasks on CNC lathes, M-level or even higher G-level precision blades are the best choice. They can ensure that the tool always maintains extremely high precision stability during high-speed rotation and cutting, and control the machining error within a very small range, laying a solid foundation for manufacturing high-quality products.
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