flat cutting disc Granularity

The diamond particle size in the common range of 30/35 to 60/80. The more hard rock, should be selected with a finer granularity. Because under the same pressure conditions, stone cutting disc‍ the more detailed the more diamond sharp cut in favor of hard rock. Further, the general requirements of a large-diameter blade cutting efficiency high, the particle size should be selected with a thick, such as 30/40, 40/50; lower small-diameter blade cutting efficiency requirements sectional smooth rock cutting, should to a smaller particle size, such as 50/60, 60/80. 

Segment concentration 

The so-called diamond concentration, refers to the density distribution in the working layer of diamond carcass (ie, the weight of the diamond contained within the unit area). "Norms" provides work every cubic centimeter carcass containing 4.4 karats of diamonds, its concentration was 100%, with 3.3 karats of diamonds, its concentration was 75%. Represents the volume concentration of the volume occupied by the number of diamond flat cutting disc‍ agglomerates, and that, where a concentration of 1/4 volume of the total volume of diamond is 100%. Increasing the concentration of diamond is expected to prolong the life of the blade, i.e., reduced because of the increased average concentration of each piece of diamond cutting forces suffered. However, increasing the concentration will increase the cost of the blade, the most economical and thus there is a concentration, and the concentration increases with increasing cutting rate. 

Blade hardness 

Generally, the higher the hardness binding agents, the stronger its wear resistance. Thus, when a large rock cutting abrasive, hardness should be high binding agent; when cutting soft rock material, the hardness of the binding agent should be low; grinding when cutting large and hard rock, the stainless steel cutting discs‍ binding agent should be moderate hardness .

LEMAN metal cutting discs Effect Diamond saw blades i

Diamond saw blades in the process of cutting stone, will be alternating load of centrifugal force, cutting power, cutting fever. 

As the force and temperature effects caused by flat cutting disc‍ diamond saw blade grinding damage. 

Force effect: the cutting process, the saw blade to be subjected to an axial force and tangential force. Because of the force acting radially and in the circumferential direction, so that the wavy blade axially, radially dish-shaped. Both can cause deformation of the rock section is not straight, stone waste more time sawing noise, vibration intensified, resulting in diamond caking early damage, reduce blade life. 

Temperature effect: the traditional theory: the effect of temperature on the blade process mainly manifested in two aspects: First, cause agglomeration of diamond graphite; Second, abrasive cutting disc‍ the thermal stress caused by diamond and diamond particles resulting from the carcass off prematurely. New research indicates that: the heat generated during the cutting process the incoming primary agglomerates. Arc temperature is not high, generally between 40 ~ 120 ℃. The abrasive grinding points, but a higher temperature, generally between 250 ~ 700 ℃. The average temperature of the coolant only reduce the arc zone, the temperature of the grains was less affected. Such temperature does not result in charring of graphite, but will occur between the abrasive friction properties and the workpiece changes, and to thermal stress between diamond and additives, which led to a fundamental change occurred diamond failure stone cutting disc‍ mechanisms. Research shows that the temperature effect is to make the maximum blade breakage factors.

stainless steel cutting discs Grinding damage

Grinding damage: As compared with the force and temperature effects should, after a period of use the blade tends to produce grinding damage. Mill damaged form are metal cutting discs‍ the following: abrasive wear, local crushing, crushing a large area, off, binders direction along the cutting speed mechanical abrasion. Abrasive wear: style pieces of diamond particles with constant friction, passivated edges into a flat, losing cutting, increasing friction. Heat causes the cutting of the diamond particles of the surface of a thin layer of graphite, the hardness greatly reduced, increased wear: the surface of the diamond particles exposed to alternating thermal stresses, and also to withstand the stress of alternating cutting, fatigue cracks occur locally broken, revealing a sharp new edge, is an ideal wear patterns; large area of ​​broken: to withstand shock loads when the diamond particles in the Leads, the more prominent grains and grain prematurely consumed; shedding: alternating the diamond cutting force binder particles are constantly shaking and loosening. Meanwhile, the wear and heat cutting the binding agent during the sawing itself soften the bonding agent. This gripping force of the bonding agent is decreased, the cutting force when the gripping force is greater than the particles, the diamond particles will fall off. No matter what kind flat cutting disc‍ of wear and tear are closely related to the diamond particles bear the load and temperature. Both of which depend on the sawing process and cooling lubrication conditions.

flat cutting disc Manufacturing method

With the rapid development of the automotive, aviation and aerospace technology, material properties stainless steel cutting discs‍ and processing technology for increasing demand. New materials such as carbon fiber reinforced plastic, particulate reinforced metal matrix composites (PRMMC) and ceramic materials are widely used. These materials have high strength, good wear resistance, low coefficient of thermal expansion characteristics which are determined when the machining tool life is very short. Development of new wear-resistant and stable superhard cutting tool is the subject of many universities, research institutes and enterprises of the study. Diamond set mechanical, optical, thermal, acoustic, optical, and many other excellent performance in one, with a high hardness, low coefficient of friction, high thermal metal cutting discs‍ conductivity, thermal expansion coefficient and chemical inertness low, is an ideal material for the manufacture of the tool. In this paper, the development of a method of manufacturing diamond tools in recent years, an overview.

Process characteristics CBN abrasive hardness higher than normal

CBN abrasive hardness higher than normal. High hardness means cutting stronger, sharper; CBN has a high abrasion resistance, meaning it harder than normal abrasive wear; stainless steel cutting discs‍ ability to maintain the shape of the CBN abrasive as one of the main characteristics of high-performance abrasives; CBN's high compressive strength, which means that when used under harsh conditions it can remain intact and not broken particles; CBN has good thermal conductivity can be achieved when grinding cold cuts. 

1, high hardness, high toughness 

High hardness, high toughness cubic boron nitride (CBN) is a human synthesis of superhard material hardness only to diamond is much higher than ordinary corundum and silicon carbide abrasive, so it has a better cutting ability, sharper 

2, high temperature, thermal stability 

CBN can withstand 1250-1350 degrees Celsius, higher than 800 degrees Celsius heat resistance of diamond; during grinding and cutting ferrous materials, sticky crumbs phenomenon construction cutting blades‍ does not occur in the grinding hardened steel, high vanadium high speed steel, aluminum and other high-speed steel grinding temperature is more sensitive to the metal material is the best wheel. 

3, the chemical inertness 

CBN is not easy and the iron group elements produce a chemical reaction, so for a variety of high-speed steel, tool steel, tool steel, high alloy hardened steel, chrome steel, nickel alloys, powder metallurgy steels and high temperature alloys such as high temperature, high hardness grinding of materials of low thermal conductivity is very suitable. 

4, good thermal conductivity 

CBN grinding wheel corundum thermal conductivity up to several hundred times, and thus able to quickly export grinding heat, reduce the thermal deformation of the workpiece. The low thermal conductivity of the material is very suitable for grinding. Various spray (welding) Material: nickel-based, grinding wheels‍ iron-based, etc.; cast iron type material: vanadium - titanium cast iron, high-phosphorus iron, chilled cast iron, etc.; titanium: such TC4 and so on.

flat cutting disc Flat cutting disc using fine materials

Flat cutting disc using fine materials, craftsmanship ensures high cutting efficiency and the best economic results of the different materials of the workpiece.
Flat cutting disc is widely used in depressed center cutting wheel‍ ordinary steel, stainless steel and non-metallic materials production.
Flat cutting disc made ??of glass fiber reinforced resin and the bonding material, with high tensile strength, impact resistance and flexural strength. Flat cutting disc belongs wheel, abrasive and binder resin made ??for ordinary steel, stainless steel, sheet metal and nonmetal materials. Resin cutting discs are resin binder, combined with a variety of materials, for alloy steel, stainless steel and other difficult to cut materials, cutting performance is particularly significant. Dry ﹑ wet two cutting mode, the cutting accuracy is more stable, while the cut piece of material and hardness of choice, can greatly improve the cutting efficiency and save production costs. As more and more machinery industry, Diamond cutting discs‍ machinery products require more processing usually requires each product processed through the first cut piece molding, grinding and sanding during the follow-up, after a road eventually became a full-fledged process products.‍

stainless steel cutting discs Cut off wheels

Cut off wheels are binding agent by ordinary abrasive solid form a certain shape (mostly circular, the central through-hole), and has a certain strength abrasive.
Cut off wheels generally consists concrete cutting blade‍ of abrasive, binder and pore structure, which is often referred to as abrasive three parts of three elements.
Cut off wheels are abrasive in the largest amount, the most widely used method of using surface, high-speed rotation, can cylindrical, inner circle, plane and a variety of type faces and other metal or non-metal workpieces when using coarse grinding, semi-refined grooving and grinding and grinding and cutting and so on. Cut off wheels are grinding the most important one class abrasive. Abrasive wheel is a binding agent was added to the porous body by the pressure of the blank, made ??of dried and calcined. Since abrasives, binding agents and different manufacturing processes, a large difference in the characteristics of the wheel, so the quality of the grinding process, productivity and stone cutting wheels‍ economy has an important effect. The main characteristics of the grinding wheel is determined by the abrasive particle size, binder, hardness, structure, shape and size and other factors.‍