Welding Techniques for Diamond Segments

There are generally three methods to weld and sinter diamond segments onto the saw blades: silver brazed diamond blade, wholly sintered diamond blade and laser welded diamond blade.

Silver brazed diamond blade: diamond segments are brazed to the steel saw base using a silver solder. Silver brazed diamond blade can only be used in wet cuttings. If they are used in dry cuttings, the silver solder may melt under the high temperature generated in the dry cutting and the segments can break from the steel core and be extremely dangerous.

Wholly sintered diamond blade: the diamond blade is made by putting the steel core together with the diamond segments and the metal bond materials into a mold and then sintering them in a sintering machine.

Laser welded diamond blade: the laser melts the diamond segment and the steel core creating a stronger weld, which can hold the diamond segments even in high temperatures, so laser welded diamond blades can be used to cut many types of materials without water cooling.

How to choose the right diamond segment

Actually, choosing the right diamond segment is to choose diamond blades. Take the following points into consideration before you decide to buy any diamond segment.

1. What materials need to be cut

2. Is the cutting procedure done in wet or dry conditions

3. What is the height of diamond segment

4. How to choose optimum performance tools

How to choose diamond saw blade

Generally speaking, when cutting hard or abrasive subjects such as granite, marble, brick, concrete, asphalt, steel and other similar subjects, diamond saw blades have a good reputation in the global industry due to their outstanding performance in cutting. Choosing right diamond saw blades for cutting is necessary to perform cutting tasks well.

Before buying diamond saw blades, you should consider the following items:

1. What material you are cutting

The match of the diamond saw blade's features as closely as possible to the material you are going to cut, for example, cutting stone, granite, marble, concrete, asphalt, and so on.

Correctly identifying the material you are going to cut is the most important factor in choosing a blade.

2. Choose wet or dry cutting

When using power tools such as power hand saw, it is not safe to use water because of the electrical power source. However, diamond saw blades for concrete are usually for wet cutting because the concrete to be cut is very hard or abrasive.

If the saw blades are used without adequate water, the diamond segments themselves may break or the steel core below the segments may wear and break, and then the segment may fly out and may hurt the operator or people nearby. If you have to perform dry cutting for some reason, you should choose sharper diamond saw blades, and the dry cutting should be intermittent and shallow to keep the diamond blade cool.

3. What is the height of diamond segment

Total segment heights may be misleading because of non- diamond bearing segment bases necessary for the laser welding or brazing process. Many other factors affect a blade's performance and consequent value. Consider the diamond size, concentration and quality, the hardness of the bond, the cutting power (torque) of the saw, and how well the blade specification is matched to the material being cut.