Blog #China grinding wheel supplier

Do you know the density of abrasive wheels?

Abrasive concentration is different when grinding wheel production, different concentration of the finished product characteristics are different, China grinding wheel suppliers today take you to understand the concentration of grinding wheel, I hope it will be helpful to you.

Abrasive concentration is defined in powder compacted sintered or resin bonded grinding wheel sheets as containing 4.4 carats per cubic centimeter of volume. The thickness of the thin fast working grinding wheel is generally between 75-150.

Diamond grinding wheels use 50% - 100% concentration; most of them use 75%, which requires a higher smoothness can be lower than 75%. Forming grinding and longer service life requirements of the grinding wheel, can be used 100% or more;

The concentration of 25% - 150% is used in diamond products, of which the coarse-grained cutting saw blade and the concentration are generally lower, i.e. 25-50%, and the fine-grained one is higher; while the concentration of other metal bond grinding wheels is generally required to be 50% - 100%. Generally speaking, the concentration of coarse grinding is higher, that of semi-fine grinding is medium, and that of fine grinding and polishing is higher.

The China long life grinding wheel density is too low, cutting efficiency is not high, concentration is too high, grinding wheel strength is poor and grinding wheel consumption is large. So in production, we should pay attention to the concentration of the control, to ensure the quality of the grinding wheel.

Deformation of resin cutting abrasive wheels

The deformation of resin grinding wheel is a difficult problem that has puzzled the China grinding wheel suppliers of resin China long life grinding wheel for a long time. The root cause of deformation is the uneven microstructure in the effective area of the wheel, which leads to the uneven stress in the hardening process of the product.

Manufacturers of resin-bonded China long life grinding wheels should concentrate on solving the problems of mixture uniformity, molding uniformity and mesh stability. Only by gradually solving the above three problems can the deformation of resin-bonded grinding wheels (mainly cutting wheels) be solved.

Application field of grinding wheel

In general, peeling grinding is mainly applied in the following two areas:

(1) Replacing the traditional shaping cut-in grinding: CBN grinding wheels do not need to change grinding wheels and dressing tools frequently when processing different workpieces, which reduces grinding settings and adjustment time and improves processing flexibility; at the same time, the contact area between the fast working grinding wheel and the workpiece is smaller when peeling grinding (Fig. 3), so the required grinding force is also greater. Small, avoid grinding vibration and workpiece deformation due to excessive grinding force, and improve machining accuracy.

(2) Substitute for hard turning or as the follow-up process of hard turning: The use of CBN wheels for peeling grinding can improve the dimensional accuracy and surface processing quality of the workpiece.