Diamond abrasive belts
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- Description
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CBN abrasive belts have high efficiency of grinding, good wear resistance, high quality of processed surface and environmental protection characteristics.CBN hardness is second only to diamond, while the thermal stability is much higher than diamond, for the Fe group of metals and alloys tools have greater chemical inertia. Therefore, CBN abrasive processing ferrous metals and their metal materials is other ordinary abrasives can not be compared. This is for the processing of hard and tough difficult to process materials provides a new means, diamond is suitable for processing hard and brittle materials, CBN can precisely complement each other.
Characteristics and applications
1, CBN's hardness is much higher than ordinary abrasives. Especially suitable for processing high hardness, toughness, high temperature, high strength, low thermal conductivity of the material, its metal abrasion rate is also 10 times that of diamond.
2, CBN abrasives grinding performance is very excellent, not only capable of difficult to wear materials processing, improve productivity, and is conducive to strict control of the shape and dimensional accuracy of the workpiece, but also effectively improve the quality of grinding, significantly improve the surface integrity of the tool after grinding, thus improving the fatigue strength of the parts, extending the service life and increasing reliability.
3, CBN abrasives wear less, long service life, grinding is relatively high, the use of reasonable can obtain good economic results.
4, CBN abrasives use, shape and size changes are extremely slow, more suitable for CBN CNC machining center high-precision parts.
5, can maintain sharp cutting force for a long time, so the grinding force is small, is conducive to the improvement of the accuracy and finish of the parts, but also reduce the power consumption of the machine tool.
6, grinding temperature is low, can greatly improve the surface quality of the workpiece, to avoid cracks, burns, tissue changes and other ills of the parts, to improve the processing surface stress conditions, is conducive to the extension of the service life of the parts.
7、Ordinary abrasive belts produce a large amount of dust in the process of artificial use, which is harmful to human health, and long-term use will cause silicosis.
The main application scope of CBN abrasive belts
1, tungsten-containing material products. Containing tungsten and molybdenum and other high-speed steel, especially vanadium-alloyed steel, cobalt-alloyed steel, special high-speed steel tool sharpening and rough grinding.
2、Finish grinding and final grinding of precision parts made of heat-resistant stainless steel and high hardness alloy structural steel. These parts with ordinary abrasives due to abrasives Moshun consumption or grinding blunt too fast, and can not get high precision.
3、When CBN belt grinding titanium alloy, the grinding force is small, the grinding temperature is high, the grinding ratio is very high, and the grinding surface is basically in the state of compressive stress, which is the ideal grinding tool for grinding titanium alloy.
4、Finish grinding and final grinding of large precision workpieces (machine tool guides). These workpieces often cause large thermal deformation due to high grinding temperature, thus failing to obtain high precision.
5, in automatic and semi-automatic machine tools on the mass production of workpieces (instrumentation and micro-bearing parts) of the fine grinding and final grinding.
6, a variety of complex surface workpiece (gear cutter, high-precision gears, blades) processing.
7, difficult to process heat-resistant steel workpiece ultra-finishing.
8, other steel quenching fine grinding.
9.Grinding of various material parts which are sensitive to the thermal shock of localized thermal stress.
Grinding wheel, also known as fixed abrasive, grinding wheel is a fixed abrasive with a certain strength by bonding agent to consolidate ordinary abrasive into a certain shape (mostly circular, with a through hole in the center). It is generally composed of abrasive, bonding agent and pores, which are often referred to as the three elements of fixed abrasive tools. According to the different classification of the binder, the common ones are ceramic (binder) grinding wheel, resin (binder) grinding wheel, rubber (binder) grinding wheel. Grinding wheel is the largest amount of grinding tools, the use of the most widely, when used in high-speed rotation, can be on the metal or non-metal workpiece of the outer circle, inner circle, plane and various types of surface, such as rough grinding, semi-fine grinding and fine grinding and grooving and cutting.
Product Introduction
Grinding wheel is the most important kind of grinding tool in grinding process. The grinding wheel is a porous body made by adding binder to the abrasive, compacts, drying and roasting. Due to the different abrasives, binders and manufacturing processes, the characteristics of grinding wheels vary greatly, so it has an important impact on the quality, productivity and economy of grinding. The characteristics of grinding wheels are mainly determined by factors such as abrasive, particle size, binder, hardness, organization, shape and size.
Product classification
There are many kinds of grinding wheels. According to the abrasive used, it can be divided into ordinary abrasive (corundum and silicon carbide, etc.) grinding wheel and natural abrasive superhard abrasive and (diamond and cubic boron nitride, etc.) grinding wheel. According to the shape, it can be divided into flat grinding wheel, bevel grinding wheel, cylindrical grinding wheel, cup grinding wheel, disc grinding wheel, etc. According to the binder, it can be divided into ceramic grinding wheel, resin grinding wheel, rubber grinding wheel, metal grinding wheel, etc. The characteristic parameters of the grinding wheel are mainly abrasive, particle size, hardness, bonding agent, shape, size and so on. Since the grinding wheel usually works at high speed, a rotary test (to ensure that the grinding wheel will not break at the working speed) and a static balance test (to prevent machine vibration during work) should be carried out before use. After working for a period of time, the grinding wheel should be dressed to restore grinding performance and correct geometry.
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