Tungsten Carbide End Mills Classification

Tungsten carbide end mills are generally divided into integral indexable end mills and end mills. When the time 3 ~ 20mm in diameter can be made integral end mills; when the diameter is between 12 ~ 50mm can be made indexable end mills. Monolithic tungsten carbide end mills are divided into standard helix angle and the large helix angle cutter, standard helix angle is usually 30 ° or 45 °; large helix angle is generally 60 °, the number of teeth is 2,4,6 teeth. 6 large helix angle milling cutter teeth cut smooth, radial cutting force, suitable for finishing. Standard helix angle milling cutter teeth less chip flutes, and have a 1 to 2 cutting edges through the center, suitable for hand roughing. Indexable carbide end mills can be divided in accordance with the structure and purpose of the ordinary type, drilling and milling type and helical type three. Indexable milling cutter diameter is small, the space occupied by clamping the blade is very limited, so the general use of pressure-hole. Road tablets can be divided into paperback and vertical pressure-hole pressure mounted blade hole and so on.

Tungsten Carbide Broach Composition Structure

Although a wide range of tungsten carbide broach, but the composition of the structure are similar. Such as standard round hole in the structure and composition of tungsten carbide broach generally: the handle portion, and its role is to pull the knife holder and the transmitting power; neck, the role of the ligation; the transition cone, the leading portion of the broach is introduced workpiece; preamble portion, play a guiding role in avoiding broach skew; cutting teeth, cutting the work completed by the coarse and fine cutting teeth gnashing of teeth composition; alignment of teeth, from the repair of light and calibration effect, and as a fine tooth gear cutting reserve; rear guide after the prop handle, bearing the Torah knife; Ministry for supporting the workpiece to prevent tooth cut off antecedents sagging and damage the machined surface of the workpiece and the cutter.

Tungsten Carbide Broaches Broaching Way - Block-Type Broaching

Tungsten carbide broaches broaching way of broaching the way sub-block, also known as round-cut way of broaching. Block type broaches take three teeth, between the teeth group had a greater amount of tooth liter ƒz, each group consisting of three teeth, tooth blade staggered distribution of the first two, they were working surface resection margin, final round tooth from the wiper effect. In addition, there are also made​of the group, regardless of teeth, each tooth cutting teeth have a larger liter volume, the cutting edge of the adjacent teeth showed a staggered distribution for interleaved block broaching.

Tungsten Carbide Broaches Broaching Way - Hierarchical Broaching

Tungsten carbide broaches broaching hierarchical manner broaching, each allowance each cut by a cutter. According to the product surface contour of the final formation process, divided into the same profile type had become two. With profile-type broaching method refers to the final profile shape of each tooth profile shape and the machined surface similar to the final profile shape is made after the last cutting teeth broaching formation. Had become the type broaching method refers to the machined surface after the final profile shape is done by broaching cutter convergence formation.

Tungsten Carbide Broaches Broaching Way

Definition tungsten carbide broaches broaching way is by broach teeth removed from the workpiece surface allowance ways. Broaching way into hierarchical, block and Omnibus three ways. Broaching the main features of three different ways carbide broach is: the same profile tiered broach tooth rise was smaller, high-quality broaching, broach longer. Had become the same profile type broaches broaching easier when forming surface broach manufacturing, broach poor quality; segmented broach tooth-liter capacity, suitable for broaching large size, large margin surface, can also be pulled rough cut surface, the short length of the broach, high efficiency, but it is not easy to improve the quality of broaching; General formula pull broaching tool has the same way of the hierarchical profile of the advantages of block broaching, the current balance of a larger circular hole broaching often use integrated round broaches.

Tungsten Carbide Broach the Classification and Uses

Tungsten carbide broach generally used for overall manufacturing high-speed steel, tungsten carbide broaches often as modular, due to higher productivity, longer life expectancy and other characteristics, often in the automotive industry in the processing block and bearing caps, etc. parts. Carbide broach classification from parts machined surface, broaches structure and use three different methods to divide. According to the surface to be machined can be divided into different parts and outer Broach Broach two kinds; press tungsten carbide broach monolithic structure can be divided into broaches, broach welding, assembly-type broaches and broach tipped four kinds; by the use of different methods can be divided into broaches, push knives and rotary broach three.

Tungsten Carbide Cutting Tools for Drilling and Cutting Fluid Chip Control

Drilling swarf control and tungsten carbide tool cutting fluid is drilling in the key. Generate the appropriate shape and size as well as drilling cuttings exclude them for any drilling processes are essential. In this case, if no satisfactory performance due to any tungsten carbide cutting tool for drilling the drill cuttings will be stuck in the hole cutting is stopped in a short time. Modern drill high cutting speed and high feed are available through the use of cutting fluid becomes possible when effective chip evacuation. Tungsten carbide cutting tool during the drilling fluid is for use in a metal cutting, grinding process used to cool and lubricate the tool and the workpiece industrial fluids, cutting fluid is a combination of the super-functional additives Science composite compatibility made.

Tungsten Carbide Cutting Tools and Drilling in The Force and Power

When tungsten carbide drill through the product to remove unwanted metal, tungsten carbide cutting tools and drilling in the cutting forces acting on the carbide drill. So for carbide cutting tools have some drilling drilling power requirements. Drilling power in addition to material factors, drilling power (Pc) but also with the diameter, feed rate and cutting speed related. Required drilling approximate calculation formula can be used to check the power of the drilling machine can meet the power needs. For modern machine tools, most medium-diameter hole drilling carbide tools is not a problem, but there are times for large aperture diameter hole depth, it still needs to check the drilling power. 

For the large-diameter step of carbide tools for drilling, in particular when considering the trepanning cutter bits is subjected to total drilling torque, the torque value in nanometers is another valid value. Feed, diameter, material is the main factor affecting the torque values. Torque is the sum of the torque on each cutting edge is tangential to the center of force and the radial distance from the path of the product.

Tungsten Carbide Cutting Tool Drilling Parameters In

Tungsten carbide cutting tools and drilling is based on carbide drill or reamer hole machining mold parts on drilling methods, drilling tool and the workpiece relative motion and axial feed movement. Carbide cutting tool drilling parameter refers to the cutting speed, feed per revolution, penetration or feed rate and depth of the hole four parameters. The cutting speed is at a point on the cutting edge with respect to the surface to be machined in the direction of the main movement of the instantaneous speed. From the standpoint of hole machining, the bore may represent a major factor characteristic comprises: the diameter, depth and quality of materials, processing conditions, or conditions, reliability, productivity.

Carbide cutting tool drilling parameters of cutting speed, usually with the letters VC expressed in units of m / min, is determined by the circumferential speed, the cutting speed can be calculated using the spindle speed (n) to get. Spindle speed is expressed in revolutions per minute. In a turn, the drill perimeter of π × Dc, Dc for drill diameter. Drilling cutting cutting parameters will change, depending on the cross section of drill cutting edge. From the center to the circumference of the drill, its speed from zero to the maximum. The recommended maximum speed of the peripheral cutting speed.

Drilling Technology of Tungsten Carbide Cutting Tool

Tungsten carbide cutting tool drilling process is closely related with subsequent processing, such as sleeve holes, reaming and boring. These same points of tungsten carbide cutting tools for drilling process is rotating the main motion and linear feed movement combined. Sleeve hole is mainly used for large-diameter holes, unlike the entity that consumes a lot of power drilling. Sets of holes drilled across the diameter of the hole is not drilling, but drilling a ring on the circumference of the hole. It is not all materials are removed in the form of chips, but leaving a core around the center, therefore, the main thoroughfare such that the drilling process is the application of the through-hole; reaming tool is dedicated to expand the existing hole, it species around the hole drilling process is cutting out a lot of metal; reaming is already finishing hole. This drilling process will remove a small allowance, so as to achieve better surface quality and small tolerances.

Tungsten Carbide Milling Tool Selection and Application Process

Tungsten carbide milling tool selection and application process include determining step to determine the material, select cutter, milling inserts and select OK to begin the value of five parts.

Determine the steps of: determining step type, face milling, shoulder milling, contour milling, slot milling, and then consider the production efficiency, reliability and consistent quality under the premise, and select the appropriate tool.

To determine material: determined according to ISO workpiece material, steel, stainless steel, cast iron, aluminum, heat-resistant alloys and titanium alloys, brittle materials.

Select cutter: Select Tool pitch and type of installation. Preferred fine-toothed cutter. In large overhangs and unstable conditions using sparse tooth cutter. Short scrap materials and the use of ultra-dense high-quality alloy tooth cutter. Select the type of installation.

Select milling inserts: choose your operating milling insert geometry: the geometry L = light, suitable for low cutting forces / power of light cutting; preferred geometry M = medium, mixing processing; trough H = heavy duty, applicable in forging, casting and vibration conditions crusty roughing. Select the best productivity milling insert grades.

Tungsten Carbide Cutting Tool Milling process

Tungsten carbide cutting tools for milling through multi-tool cutting edge can be rotated along the product implementation programmable feed motion in any direction, thus completing the metal cutting. This makes the cutting action of the milling becomes a very effective and can be widely used processing method. According to pass a limited way, the milling cutter each cutting edge a number of metals can be removed, so that the cutting chip has been formed and is not a very important problem. The most common application of carbide cutting tools are used to generate planar milling, face milling which is the same, but with five-axis machining centers and multi-tasking machine tool increasing number of other processing methods and surface processing methods has also been considerable development.

Composition Tungsten Carbide Insert Knife Cutting Part

Tungsten carbide cutting knife inserted in part by the high-speed steel and carbide composition, and sometimes also available alloy tool steel. When machining a workpiece ordinary steel and non-ferrous materials, commonly used high-speed steel, the higher the hardness of steel and cast iron machining the workpiece, often used carbide. Because modular blades manufacturing convenience, low cost, knife sharpening head can be processed into various shapes requirements, clamping replacement is very convenient, as long as the replacement knife head can be rough, finishing and shaping, so choose when, may give priority to modular plug knife. However, the modular insert knife blade due to restrictions by clamping in processing holes, can not be used when a narrow groove or blind holes.

Tungsten Carbide Insert Knife Species

Tungsten carbide insert knife variety, roughly divided into monolithic tungsten carbide insert carbide insert knives and knife combined two structures. Monolithic tungsten carbide insert knife blade and shank become one; modular tungsten carbide insert knife blade and shank divided into two parts, according to Arbor can do Ideally thick and short, rigid better, head can be freely exchanged, used widely. Carbide blades by processing into coarse tungsten carbide insert knife nature and fine tungsten carbide insert knives, their use can be divided into knives, cutters, shaping knives. Knife used for interpolation or slotting rough polygonal holes. Knife used to cut the rectangular-shaped grooves and insert various polygonal hole. Shaped knife is based on the shape of the workpiece surface needs sharpening made ​​according to the shape into the angle, arcs, and so on forming tooth knife.