Earlier diamond segments of diamond circular blades were all designed to be even cuboids. Later, people found that, after a period of sawing, the two sides of the segments are easier to be worn than the middle, and the segments become a convex shape. The convex-shape diamond segments have a larger contact area with the material being cut, therefore the diamonds on them are easier to be ground blunt and then need dressing. In addition, as the sawing force will also increase, the core of the diamond blade tends to be distorted and be deformed for vibrations. This can influence the cutting precision, and reduce the blade core’s service life. Sandwich diamond segments, which have higher side layers and lower middle layers, however, can solve this problem to a great extent.

Read the rest of this article »

The shape of diamond segments is an important factor influencing the performance of diamond blades. The different shapes are directly related to cutting efficiency and the ratio of the diamonds’ non-normal failure.

Read the rest of this article »

A diamond blade consists of a blade core and some diamond segments, and a diamond segment consists of a working layer (containing diamonds for cutting) and a transitive layer. The transitive layer has no diamonds, and is a pure bond layer which connects the working layer to the core of a diamond blade.

Read the rest of this article »

The valid working parts of metal-bonded diamond tools (e.g., the teeth of the common diamond blades) are normally called diamond segments, which are the sintered mixture of diamond grains and metal bond materials. Generally, diamond segments are made via the procedures of mixing diamond grains with bond materials, hot pressing and sintering, and arc grinding. They can be arc-shaped or rectangular.

Read the rest of this article »