Sandwich Diamond Segments of Diamond Blades

December 8th, 2009

Earlier diamond segment of diamond circular blades was 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.

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Why Diamond Segments Have Different Shapes

December 3rd, 2009

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

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Bond Materials Used In the Transition Layer of Diamond Segments

November 24th, 2009

A diamond blade consists of a steel core and some diamond segments. In many cases, a diamond segment (especially for those diamond segments for laser welding) includes not only a working layer (containing diamonds for cutting), but also a transition layer. The transition layer has no diamonds, and is a pure bond layer which connects the working layer to the steel core of a diamond blade.

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Some Knowledge of Diamond Segments

November 17th, 2009

The valid working parts of metal-bonded diamond tools (e.g., the teeth of the common diamond blades) are normally called diamond segment, which is 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.

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