Welding Milling Cutters / Solid Carbide Welded Cutting Tools one kind of Cutting Tools, which Carbide Blades are welded so that it may reduce the cost and also reach the cutting request.
Our Angle Milling Cutters come in either right hand or left-hand variety. They are made of different classes of materials; Their surfaces are coated upon request. The coating material protects the surface from elements and enhances durability.
Zhuzhou UKO Welding Milling Cutters have been fully satisfied to all customers from our dedication to technological research and development. We produce Solid Carbide Welded Cutting Tools series, including Angle Milling Cutter with Shank、Angle Milling Cutter、Face Milling Cutter、Carbide Helical End Mills、Chamfering with Shank、Carbide Machine Reamers、Carbide Side Milling Cutter、Side Milling Cutter / Staggered Teeth、Carbide T-Slot Milling Cutters、T-Slot Milling Cutters / Staggered Teeth and Radius Milling Cutter.
Our Brazed Carbide Cutters can avoid the breakage during heavy milling and can mill quickly with good chip release, excellent cutting performance and high metal cutting rate.
Angle Milling Cutter with Shank
Face Milling Cutter
Angle Milling Cutter
Carbide Machine Reamers
Carbide Helical End Mills
Radius Milling Cutter
Carbide Side Milling Cutter
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What Is the Difference Between Insert Milling Cutter and Welding Edge Milling Cutter?
Insert milling cutters and welding edge milling cutters are mainly used for horizontal milling, but welding edge milling cutters can process shallower holes, while insert milling cutters cannot.
Welding edge cutter welding skills and methods
When welding carbide tools, it is best to prepare some hot lime. Immediately after the tool is welded, the tool is buried in hot lime. This allows the tool to cool slowly, which can prevent cracks in the carbide tip and prolong the service life of the tool.
1. The welding cutting tool structure should have sufficient rigidity
Sufficient rigidity is ensured by the maximum allowable external dimensions and the use of higher-strength steel grades and heat treatment.
2. Cemented carbide blades should be fixed firmly
Cemented carbide welding blades should have a sufficient degree of fixation and reliability. It is guaranteed by the sipe and welding quality. Therefore, the shape of the insert slot should be selected according to the shape of the blade and the geometric parameters of the tool.
Before welding the blade to the shank, the blade and the shank must be checked. First, check that the bearing surface of the blade is not severely bent. The cemented carbide welding surface must not have a severe carburizing layer. The dirt on the blade surface and the shank slot is removed to ensure reliable welding.
3. Requirements for soldering
In order to ensure the welding strength, a suitable solder should be selected. During the welding process, good wettability and fluidity should be ensured, and air bubbles should be excluded to make the welding fully contact with the alloy welding surface, and there is no lack of welding.
4. Requirements for welding flux
It is recommended to use industrial borax. Before use, it should be dehydrated in a drying furnace, then crushed and sieved to remove mechanical debris and set aside.
When welding high titanium low cobalt fine particle alloys and welding long and thin alloy blades, in order to reduce welding stress, it is recommended to use a thin sheet with a thickness of 0.2-0.5mm or a mesh compensation gasket with a mesh diameter of 2-3mm.
Due to the brittleness of the carbide blade and its strong sensitivity to crack formation, the tool should avoid overheating or rapid cooling during the grinding process. At the same time, it is necessary to choose a suitable grinding wheel and a reasonable grinding process to avoid sharpening cracks. Affects tool life.
When installing the tool, the length of the tool head protruding from the tool holder should be as small as possible, otherwise, it will easily cause tool vibration, which will damage the alloy sheet. When the tool is used to reach normal bluntness, it must be reground. After regrinding, be sure to use Whetstone grinds the cutting edges and the corners of the cutting edge, which will increase the service life and safety of the tool.
What Are the Shapes of the Welding Blade?
1 According to the installation structure of the blade: There are mainly vertical structures and flat structures. Among them, the indexable milling cutter of the vertical structure has a tangential installation of the blade. The cutting force direction has a large carbide cross-section and high compressive strength. Large depth of cut and a large amount of cutting;
At the same time, because the insert is clamped by cutting force, the clamping force also increases with the increase of the cutting force, the clamping element is omitted, and the chip discharge groove can be increased during design. The structure is simple and compact, so it is widely used.
2 Several types of vertical indexable milling cutters and their applications
Ceramic indexable fine-tuning plane fine milling cutter
Structural features: Ceramic indexable fine-tuning plane precision milling cutter is a new type of vertical indexable milling cutter with a special structure for surface finishing. This kind of milling cutter is widely used, and it is suitable for the finishing of the face clamping plate, machine tool table and box joint surface in the steam turbine.
Cemented carbide indexable screw rotor milling cutter
Structural features: Cemented carbide indexable screw rotor milling cutter is a special milling cutter for rough machining of screw compressor rotors, this type of milling cutter is composed of two female and male milling cutters, which are respectively used for rough machining of the screw female rotor and the male rotor. This kind of milling cutter has high technology content and is difficult to design. There are many types of inserts for the cutter. When designing the profile, we must consider ensuring that the blades are fully overlapped and the profile meets the tolerance requirements;
When solid modeling, the various blades should be reasonably distributed. It is necessary to ensure that the space of the blades does not interfere, and also to ensure that the cutting of the tool is stable. According to the above design principles, according to the rotor-shaped linear coordinates provided by the user, a special-shaped blade is reasonably selected: the female screw rotor milling cutter tooth top part uses a convex arc blade, and the male screw rotor milling cutter tooth top part uses a book, Ultra-long special blade; concave bottom blades of female and male milling cutters use concave arc blades;
The other parts use straight-edged blades. At the same time, some blades were corrected for the angle. When manufacturing the milling cutter, CAM software is used to compile the numerical control program, and the machining is performed on the five-coordinated machining center to make the milling cutter accuracy meet the requirements, so as to ensure the uniform and consistent profile of the screw and rotor processed by the milling cutter, thereby ensuring the rotor finishing Accuracy, while also significantly reducing finishing costs.
The indexable screw rotor milling cutter currently developed has a specification of f200mm to f360mm, and the thinnest part of the tip of the male cutter is less than 4mm.
What Are the Characteristics of T-slot Cutter?
T-slot cutter can be divided into tapered shank T-slot milling cutters and straight shank T-slot milling cutters. Uses: Used for processing T-shaped grooves on various mechanical tables or other structures.
Features and precision: It is a special tool for processing T-groove. After a straight groove is milled, the T-groove can be milled 100 times to achieve the required precision. Wrong tooth design, stable cutting, and low cutting force.
Specification description: T slot cutter generally describe its model from the following aspects: diameter and the outer diameter of the circular disc and tooth part, the thickness of the disc (length of blade part), number of teeth (number of blades), shank Diameter (handle diameter), full length.
What Structure Does the Knife Have?
The structure of various tools is composed of the clamping part and working part. The clamping part and working part of the overall structure cutter are made on the cutter body; the working part (knife tooth or blade) of the insert structure cutter is installed on the cutter body.
The clamping part of the tool has two types, with holes and shanks. The tool with a hole is set on the main shaft or mandrel of the machine tool by the inner hole, and the torsion torque is transmitted by the axial key or the end key, such as a cylindrical milling cutter and a sleeve type milling cutter.
There are three types of shank cutters: rectangular shank, cylindrical shank and conical shank. Turning tools, planing tools, etc. are generally rectangular shanks; conical shanks rely on the taper to withstand axial thrust and transfer torque through friction; cylindrical shanks are generally suitable for smaller twist drills, end mills and other tools. The resulting friction transfers torsional moments. The shank of many shank cutters is made of low-alloy steel, while the working part is made of high-speed steel by butt welding the two parts.
The working part of the tool is the part that generates and processes chips, including the cutting edge, the structure that breaks or rolls the chips, the space for evacuation or storage of chips, the passage of cutting fluid and other structural elements. The working part of some tools is the cutting part, such as turning tools, planing tools, boring tools and milling tools;
The working part of some tools includes cutting part and calibration part, such as drill bit, reamer, reamer, inner surface broach and tap etc. The role of the cutting part is to remove the chips with the blade, and the role of the calibration part is to smooth the cut machining surface and guide the tool.
The structure of the working part of the tool has three types: integral type, welding type and mechanical clamping type:
■ The overall structure is to make cutting edges on the cutter body;
■ The welding structure is to braze the blade to the steel blade body;
■ There are two types of mechanical clamping structures, one is to clamp the blade on the blade body, and the other is to clamp the brazed cutter head on the blade body.
Cemented carbide tools are generally made of welded structure or mechanical clamping structure; porcelain tools are all mechanical clamping structure.
The geometric parameters of the cutting part of the tool have a great influence on the cutting efficiency and the quality of the machining. Increasing the rake angle can reduce the plastic deformation when the rake face squeezes the cutting layer, and reduces the frictional resistance of the chips flowing through the front, thereby reducing the cutting force and cutting heat. However, increasing the rake angle will also reduce the strength of the cutting edge and reduce the heat dissipation volume of the cutter head.
When selecting the angle of the tool, you need to consider the influence of various factors, such as workpiece material, tool material, processing properties (rough, finishing), etc., that must be selected reasonably according to the specific situation. Generally speaking, the tool angle refers to the marked angle used for manufacturing and measurement. In actual work, due to the different installation positions of the tool and the change of the cutting movement direction, the actual working angle and the marked angle are different, but usually, the difference is small.