What are the factors that cannot be ignored when grinding diamond saw blades?

2020-07-21 1257

What are the factors that cannot be ignored when grinding diamond saw blades? The matrix deformation is large, the thickness is inconsistent, and the internal hole is too large for public use. When there are congenital defects in the above-mentioned matrix, regardless of the type of equipment used, there are grinding errors. The large deformation of the substrate causes errors in the two side angles; Inconsistent thickness of the substrate can cause errors in both the back and front corners of the blade. If there is excessive accumulated service, the quality and accuracy of the saw blade will be severely affected.

Welding elements. During welding, there is a large error in the alignment of the alloy, which affects the grinding accuracy. This results in a large pressure on one side of the grinding head and a small pressure on the other side. The above-mentioned factors also occur at the rear corner, and the welding angle difference and human factors cannot be avoided, all of which have unavoidable effects on the grinding wheel and other factors during grinding.

The influence of diamond grinding wheel quality and particle size width. When using a grinding wheel to grind alloy sheets, pay attention to the particle size of the grinding wheel. If the particle size is too coarse, grinding wheel marks may occur. When using a grinding wheel with fine particle size, it is easy to block the grinding amount and burn the tool. The diameter and width thickness of the grinding wheel are determined based on the length, width, and width of the alloy, as well as different tooth shapes and alloy surfaces. It is not possible to arbitrarily grind different tooth shapes with the same standard for a rear or front angle grinding wheel. Therefore, it is necessary to choose a suitable standard grinding wheel with targeted selection.

The feed rate of the grinding head and the selection of grinding wheel particle size have important implications for the feed rate. Generally speaking, it is recommended to use grinding wheels from 180 # to 240 #, from 240 # to 280 #, and not from 280 # to 320 #, otherwise the feed speed needs to be adjusted.

Grinding center: All diamond saw blades should be ground with the substrate as the center, rather than the blade edge as the center. The center of the flat grinding cannot be removed, and the machining center for the back and front corners cannot be used to grind a saw blade. The center of the saw blade cannot be ignored in the three grinding processes. When grinding the side angle, carefully observe the alloy thickness, and the grinding center will change with different thicknesses. Regardless of the alloy thickness, the center line of the diamond grinding wheel should be kept in a straight line with the welding position when grinding the surface, otherwise the angle difference will affect cutting.

Gear extraction machines should not be ignored: regardless of the structure of any gear grinding machine, the accuracy of gear extraction coordinates should be planned to ensure the quality of the grinding tool. When adjusting the machine, the gear extraction needle should be pressed in a reasonable direction on the tooth surface, and it is extremely crucial not to move. When retracting the gear, the gear extraction claw should be flexible and reliable.

Clip organization: The clip organization is solid, stable, and reliable, and is the main part of the grinding quality. During any grinding process, the clip organization should not be any loose, otherwise the grinding error will be seriously out of control.

Grinding stroke: Regardless of the grinding of any part of the saw blade, the grinding stroke of the grinding head is very important. Generally, it is recommended that the grinding wheel exceed the workpiece by 1mm or exit by 1mm, otherwise the tooth surface will have a double-sided blade.

Program selection: Grinding knives generally have three different program options: coarse, fine, and grinding. Depending on the product requirements, it is recommended to use a precision grinding program when grinding the front corner.

The quality of grinding teeth with coolant depends on the grinding fluid. During grinding, a large amount of tungsten particles and diamond grinding wheel powder occur. Failure to wash the tool surface and clean the grinding wheel pores in a timely manner results in surface grinding tools being unable to achieve smoothness, and insufficient cooling can also cause alloy burning.

Grinding head feed speed; The quality of diamond saw blade grinding is completely determined by the feed speed of the grinding head. Generally, the feed speed of alloy circular saw blades should not exceed this value between 0.5 and 6 millimeters per second. That is, the feed speed should be within 20 teeth per minute. If the feed speed exceeds 20 teeth per minute, serious knife edges or alloy burning will occur, and the convex and concave surfaces of the grinding wheel will form, which will affect the grinding accuracy and waste the grinding wheel.

Article source: Diamond grinding wheelhttp://www.jm-nanhua.com/