Emery and diamond wheel for sharpening cutters

Products Caliber

Sharpening products from a Russian manufacturer are also represented on the domestic market. Based on consumer reviews, the products of this company are affordable and allow for fairly high-quality and precise processing of products. Consumables from the Caliber company contain diamond grains that have excellent performance characteristics, which ensures accurate sharpening with minimal time. But with all this, such discs are not worth purchasing if you are looking for a durable consumable.

Still, the low price makes itself felt, confirming that the manufacturer deliberately lowered the reliability characteristics of the material. However, if you are looking for a grinding wheel for one-time, important tasks, then you can opt for such a product.

You can also choose it if you plan to use it for sharpening household tools that will not be subject to increased loads.

There are many different products that have to be processed to give them the proper appearance and performance parameters. But among them there are those that are made of heavy-duty materials. Naturally, not every equipment can cope with them. The fact is that the grinding wheel used in such machines does not have sufficient hardness to destroy the structure of materials with increased strength. To perform such tasks, it is necessary to use diamond cutting wheels, which are one of the most popular consumables today.

But here a problem arises - how to choose the right disk for sharpening. To do this, you need to know the operating parameters on which the quality of processing primarily depends. Care must be taken to ensure that the diamond cutting wheel you select is suitable for the sharpening equipment on which you plan to use it. Based on this, you need to go to the store to buy a diamond wheel after first knowing the characteristics of the cutting machine. Otherwise, you will not be able to choose the appropriate type of diamond blade to effectively sharpen your products. When choosing a sharpening product, we advise you to take into account the operating conditions. Otherwise, if it does not meet the tasks facing you, you will often have to buy new sharpening wheels.

Circles Oregon

The main activity of the company is the production of sharpening discs for professionals. Therefore, it is quite logical that the basis of this manufacturer’s assortment consists of sharpening materials that are distinguished by high quality workmanship and productivity. Many users indicate in their reviews that products manufactured under the Oregon brand are quite reliable. There are owners who have been using such disks in active use for several years. Although Oregon diamond discs may need to be sharpened from time to time, this is not a difficult or expensive operation given the service life these discs exhibit.

Bundles for diamond grinding wheels

Diamond grinding wheels are produced with three types of bonds: metal, designated by the letter M (the base is compositions of tin, zinc, copper, aluminum), ceramic, designated by the letter K (with a base of glass or fireclay and the addition of aluminum) and organic, marked with the letters KB or K (made of carbolite or pulverbakelite). If a filler is used, its role is played by powder made of graphite, copper, alumina, electrocorundum or boron carbide.

Diamond wheels, which use a metal bond in their construction, are characterized by increased heat resistance and strength, retain their geometric shape for a long time and have a long service life, but quickly become greasy. They are used for grinding large volumes of material and pre-processing them. The result is a surface with an eighth to ninth roughness class. Filler is not used in such circles, and the working layer can be fixed to a transition steel ring, which is attached to the body.

Properties of circles with metal bond:

high hardness;
high speed and productivity;
good heat resistance and thermal conductivity;
high removal productivity.

An organic binder requires the use of filler. It has low hardness, heat resistance and thermal conductivity, but fairly high productivity and processing speed.

Wheels with an organic bond are used for finishing and finishing work, for finishing and finishing sharpening of products made of superhard materials and hard alloys, for processing medical and measuring instruments. Allows you to obtain a surface of the eleventh and twelfth roughness classes. Unlike wheels with a metal bond, they are less greasy, but they consume diamonds three times more.

Tools with a ceramic bond are characterized by a diamond-nickel coating, which can be applied in one or several layers. The thickness of the bond is two-thirds the size of the diamond grains. Thanks to this, the crystals protrude above the surface of the ligament, but are securely fixed. As a result, the resulting chips are easily removed from the treated area.

Properties of ceramic bonded wheels:

high cutting ability;
affordable price;
any geometry;
high thermal conductivity.

Used for grinding and cutting germanium, silicon, sital, other semiconductor materials, technical glass and ceramics, and stone processing. It is also used for finishing products made of alloy steels, hard alloys, and in the manufacture of hand tools.

Diamond wheels with a metal bond are used only with water cooling; those with an organic bond can be used both with and without cooling, and the use of alkaline solutions is not allowed.

Right choice

In order to choose the right consumables for sharpening, it is necessary to take into account a number of the following parameters when studying various products:

Type of cutting machine and material being processed. If you plan to make deep cuts, then the selected disk must be of the appropriate size. Effective operation of the tool is only possible if the working disk is suitable in size for the cutting equipment.
Shape of cutting wheel teeth. This parameter depends on the type of material being processed. It is important to take it into account when choosing a diamond blade, because the speed and cleanliness of the processing depends on it. However, sometimes you come across materials with a soft structure that can be easily cut with diamond discs without teeth. Thanks to the use of such material, damage can be avoided.

There are also other parameters that need to be taken into account when choosing a diamond grinding wheel for sharpening:

Capabilities and technical parameters of the cutting wheel.
After purchasing sharpening material that meets the necessary requirements, you need to properly attach it to the shaft of the cutting machine.
It is necessary to ensure that after switching on the machine shaft and the disk have the same direction of rotation. You can understand how to correctly install a diamond wheel for sharpening a tool by looking at the arrow located on the body, which many manufacturers apply to their products.

A Brief Overview of Diamond Sharpening Wheels

When processing the desired product, a specific abrasive tool is selected, taking into account the shape and material of the workpiece, as well as other features. The work is performed wet using coolant or dry. Such a disk, using cooling, can perform work on both surfaces of cutters, reamers, broaches, etc.

Carbide tools, after sharpening with diamond discs, contribute to increased equipment productivity due to accurate and high-quality work.

Sharpening with a cup diamond wheel

The diamond cup wheel is a device that is suitable for sharpening and finishing products made of hard alloys. Used for grinding parts made of materials that are difficult to machine. Among other things, they are used when working with hard non-metallic surfaces (ceramics, stone, glass). A sharpening wheel, made in the form of a cup, is used for sharpening cutters, knives and soldering tips.

A diamond disk disc is often used to remove paint and varnish from parts; in addition, it is used for processing metal (cast iron, steel); it has proven itself well when working with art glass products. The use of this type of diamond wheel for sharpening can reduce labor intensity by half compared to using a conventional grinding product.

This product, made in the form of a plate (due to its shallow depth), is successfully used for sharpening saws with carbide tips.

A straight profile is a sharpening wheel made in the shape of a flat disk with a diamond abrasive layer at the end. Used for processing metal surfaces where a consistent plane is required.

Manufacturing of diamond wheels

To obtain a consumable material with the necessary characteristics, it is necessary to strictly follow the manufacturing technology of this tool. In accordance with it, particles of artificial materials are used as the main raw material for this tool, which are placed in special molds along with a binder for subsequent pressing on special equipment.

Diamond wheels of different brands can be used for cutting high-density materials. To select the most suitable consumables, it is necessary to consider the size of the diamond particles used to make them, as well as the type of binder, quality and level of artificial diamonds.

In the process of producing diamond blades for processing hard materials, the finished segments are mounted on a metal body. This can be done in several ways:

laser welding;
silver soldering.

The first method has become widespread in the manufacture of tools for dry cutting, and the second - for wet cutting. Since the melting point of silver is approximately 700 degrees, this method of mounting finished segments is used primarily in the manufacture of high-quality sharpening wheels. At this stage, a diamond blade of fairly good quality is obtained, which is not yet ready for use due to its lack of cutting capabilities.

A diamond wheel for sharpening turning tools is considered ready to perform its main task, that is, sharpening, only when its segments are ground off. This operation is performed using a ceramic sharpener, and the wheel is ready for use only when diamond fragments begin to be visible during the sharpening process. Based on this feature, it is determined that the cutting wheel has acquired cutting properties.

When choosing this sharpening material in a store, you must carefully consider its surface - the circle must have a special arrow applied by the manufacturer, which helps determine the correct direction of rotation. You will need this information when it comes time to install the blade on the cutting machine shaft.