How to choose the type of grinding wheel and how to identify the model of grinding wheel?

Haha, it depends on what type of grinder you are, as well as the characteristics of grinding the workpiece, be more detailed.

The main thing is to see whether it is suitable for the workpiece you grind, particle size, hardness, tissue number, etc.

1. The most commonly used abrasive material is only a sedan car.

It is brown corundum (A) and white corundum (WA), its orange trillion is black silicon carbide (C) and green silicon carbide (GC), and the rest are commonly used chromium corundum (Pa), single crystal corundum (SA), microcrystalline corundum (MA), zirconia corundum (ZA).

2. Selection of particle size.

When grinding with a coarse-grained grinding wheel, the production efficiency is high, but the surface of the grinding workpiece is rough; When grinding with a fine-grained grinding wheel, the surface roughness of the grinding workpiece is better, but the productivity is lower. On the premise of meeting the roughness requirements, the grinding wheel with coarse grain size should be selected as much as possible to ensure high grinding efficiency. Generally, coarse-grained grinding wheels are used for coarse grinding, and fine-grained grinding wheels are used for fine grinding.

3. Selection of hardness.

When grinding soft materials, choose a harder grinding wheel, and choose a soft grinding wheel when grinding hard materials; When grinding soft and tough, non-ferrous metals, the hardness should be softer; Abrasive hardness code table GB T2484 - 1994. Hardness codes A, B, C, D, E, F, G, H, J, K, L, M, N, P, Q, R, S, T, Y.

Dear, I am glad to answer for you: grinding wheel specifications and models A: grinding wheel specifications and models are:

Florawei can be divided into flat grinding wheels, beveled edge grinding wheels, cylindrical grinding wheels, cup-shaped grinding wheels, disc grinding wheels, etc. According to the binder, it can be divided into ceramic grinding wheel, tree grease grinding wheel, rubber grinding wheel, metal grinding wheel, etc. The characteristic parameters of the grinding wheel mainly include abrasive, viscosity, hardness, binder, shape, size, etc. Since the grinding wheel usually works at high speeds, a rotary test (to ensure that the grinding wheel will not break at the highest working speed) and a static balance test (to prevent vibration caused by the machine tool during operation) should be carried out before use.

After a grinding wheel has been in operation for a period of time, it should be dressed to restore grinding performance and correct geometry. SPA 400 100 127 A 60 L 5 B 35 SPA --- shape code 400--- OD D 100--- thickness H 127--- Bore diameter D a--- abrasives 60--- particle size L--- hardness 5--- tissue number B--- binder 35--- max. line speed m s 1A1 is the model Now the parallel grinding wheel is represented (1A1 European standard) D175 is the diameter of the grinding wheel 13t is the width of the grinding wheel (width of the diamond layer in the vertical circumferential direction) 3x is the ring thickness of the grinding wheel (refers to the ring thickness of the diamond layer) is the aperture of the grinding wheel 600 is the grinding wheel The particle size of the diamond (particle size, in microns).

Summary. How to calculate the density of the grinding wheel: the specific gravity of the grinding wheel is the density of the grinding wheel, the density of the ordinary grinding wheel is generally , the highest cm3, and the density of the high-density grinding wheel can reach cm3, to achieve such a high density, the hot pressing process is the most suitable.

The material of the grinding wheel also has an impact on its density, and the grinding wheel can be divided into ordinary abrasives (corundum, silicon carbide, etc.), grinding wheels and natural abrasives, superhard abrasives and (diamond, cubic boron nitride, etc.) grinding wheels according to the abrasives used.

How to calculate the density of the grinding wheel: the specific gravity of the grinding wheel is the density of the grinding wheel, the density of the ordinary grinding wheel is generally , the highest cm3, and the density of the high-density grinding wheel can reach cm3, to achieve such a high density, the hot pressing process is the most suitable. The material of the grinding wheel also has an impact on its density, and the grinding wheel can be divided into ordinary abrasives (corundum, silicon carbide, etc.), grinding wheels and natural abrasives, superhard abrasives and (diamond, cubic boron nitride, etc.) grinding wheels according to the abrasives used.

Grinding wheel unit weight = volume v * density.

The color is uniform, there are no cracks and bumps, and the diameter and thickness meet the nominal size Sometimes it is not visible, and it is tapped with a wooden stick to hear whether there is a cracking sound. The appearance is just as 1631 says.

Look at the color of the grinding wheel... Stoma.. Granularity...

1.Selection of abrasive types.

When grinding stainless steel, white corundum (wa) is generally more suitable. Because white fused alumina has good machinability and self-sharpening properties.

Single-crystal corundum (sa) each particle is basically a single crystal of spherical polyhedron, there are no cracks and residual stresses formed due to mechanical crushing, there is less sudden breakage of a single abrasive grain in grinding, and there is a good hardness and toughness matching, so the grinding performance is good. When grinding stainless steel, there are fewer grinding scratches, especially the large hole single crystal corundum grinding wheel, which has a good application effect in production.

When grinding precipitation hardened stainless steel, it is better to use microcrystalline corundum (MA) grinding wheel, which has the advantages of high toughness, high cutting performance and high service life. Self-sharpening is cracked along the crevices of microcrystalline corundum, and there will be no rapid or whole abrasive grain shedding, which is conducive to reducing grinding heat and reducing grinding wheel clogging.

2.Selection of abrasive grain size.

The size of the abrasive grain size has a direct impact on the roughness of the machined surface. Due to the toughness of stainless steel materials, the grinding chips are easy to adhere and block, if the fine-grained grinding wheel is used, the abrasive loses its cutting effect due to the blockage of the grinding wheel, and it is easy to make the surface of the workpiece brushed. Production practice proves that the coarse grinding should use F36, F46 grit, and the fine grinding can use F60 grit, in order to adapt to the coarse grinding, fine grinding, often use F46, F60 grit grinding wheels.

3.Selection of binder.

Grinding wheels for cutting, grooving and centerless grinding of stainless steel materials can be made with resin bonds, which are strong, elastic, not afraid of impact, porosity, and can be used for high circumferential speeds. However, the hardness of the resin binder grinding wheel is low and it is afraid of alkaline solution. If the grinding wheel is placed in paraffin wax for a period of time before use, it can prevent the influence of alkaline solution.

4.Selection of grinding wheel hardness.

When grinding stainless steel, it is advisable to choose a grinding wheel with low hardness, which has good self-sharpening performance. However, when the hardness of the grinding wheel is too low, the abrasive particles are not firmly bonded and fall off before they are dulled, which greatly shortens the service life of the grinding wheel.

The production time proves that J3 N2 is more suitable for grinding the hardness of the grinding wheel of stainless steel, and K1 and L2 are the most commonly used. The hardness of the internal grinding wheel with microcrystalline corundum as abrasive is better than J3.

5.Selection of grinding wheel organization.

When grinding stainless steel materials, it is easy to clog the grinding wheel, so it is generally more appropriate to choose the F5 and F8 grinding wheel structure. When the workpiece material is the same, the grinding depth is large and the contact area is large, and the grinding wheel with loose structure should be selected. When the requirements for profile grinding or surface roughness are high, a grinding wheel with a tighter structure should be selected.

For example, when grinding high-strength precipitation hardened stainless steel materials, it is more appropriate to choose F6 and F7 structures.

It has to do with materials and machines!

The model of the grinding wheel is in the middle of the grinding wheel, and the mark is very clear.

Grinding wheel DAO introduction: grinding wheel, also known as internal consolidation abrasive, is a consolidation abrasive with a certain strength that consolidates ordinary abrasives into a certain shape (mostly round, with through holes) and has a certain strength. It is generally composed of abrasives, binders and pores, which are often referred to as the three elements of consolidated abrasives.

According to the different classifications of binders, the common ones are ceramic (binder) grinding wheels, resin (binder) grinding wheels, and rubber (binder) grinding wheels. The grinding wheel is the one with the largest amount and the most widely used abrasive tool, which rotates at high speed when used, and can be used for coarse grinding, semi-fine grinding and fine grinding of the outer circle, inner circle, plane and various profiles of metal or non-metal workpieces, as well as grooving and cutting. The characteristics of a grinding wheel are mainly determined by factors such as abrasives, particle size, binders, hardness, structure, shape and size.

Overview: Grinding wheel is the most important type of grinding tool in grinding processing. A grinding wheel is a porous body made by adding a binder to the abrasive, pressing the blank, drying and roasting.

The characteristics of grinding wheels vary greatly due to different abrasives, binders and manufacturing processes, which have a significant impact on the machining quality, productivity and economy of grinding. The characteristics of a grinding wheel are mainly determined by factors such as abrasives, particle size, binders, hardness, structure, shape and size.

1.How to see the model of the grinding wheel: Size and material size:

600 (outer diameter) * 75 (thickness) * 305 (hole diameter) Material: WA is white steel jade abrasive, 46 is coarser grain size, K is medium hard grade bonding (grinding wheel hardness), 6 is tissue porosity, V is ceramic bonding method. 2.

The WA F46K6V is not suitable, because you are a chrome part or a core grinder, and you have made the wrong choice of a flat water mill gauge grinding wheel. The finish of chrome-plated parts will be too coarse, and because they are softer and coarser, chrome-plated parts will also have inaccurate dimensional control. It is recommended that you use WA60L5V, which is a special grinding wheel for chrome plating rollers in the chrome plating industry, which can effectively achieve smooth finish and dimensional control accuracy.

If you want to increase the cutting efficiency even further, use the red chrome corundum grinding wheel PA60L5V. insteadGood luck with your grinding process. Have a good time at work.

For example, 1-400*50*127

wa46k7

V35M S:1 represents.

Shape, BAY400*50*127 is the specification of the outer diameter of 400, thickness 50, aperture 127; zhiwa stands for grinding dao material; 46 represents granularity; k stands for hardness; v stands for binder; The version of 35m s represents the maximum linear speed of the right to use.

For example, 1-400*50*127 wa46k7 V 35m s: 1 represents the shape copy, 400*50*127 is the standard outer diameter 400, thickness bai degree 50, aperture 127; wa stands for abrasive; 46 represents the granularity zhi; k stands for hardness; v stands for binder; DAO35M S represents the highest usage line speed.

Meaning of grinding wheel model: interpretation of grinding wheel identification.

Meaning of grinding wheel model: interpretation of grinding wheel identification.

Logos are generally printed on the end face of the grinding wheel, what do these logos and models represent, and what do they mean? I'll explain it to you today.

There is a unified international specification for the identification of grinding wheels. China's national standard is formulated with reference to this specification. Its main elements include: shape, size, abrasives, particle size, hardness, structure, binder, linear velocity. For example, the image below:

For example, 1-400*50*127 wa46k7 v 35m s:1 represents the shape bai

400*50*127 is the outer diameter of the specification.

DU400, thickness 50, aperture 127; wa stands for DAO Abrasives; 46 represents granularity; Back to k stands for hardness; v stands for binder answer; 35m s represents the maximum linear speed used.