TECHNICAL INFORMATION ON DIAMOND RANGE

When choosing the correct Diamond Blade for the job at hand, some of the variables worth considering are:

• Hardness of the material being cut
• Abrasiveness of the material being cut
• Hardness of the blade's bond
• Concentration of diamonds in the blade
• Type of saw and horsepower

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You may want to check with your Stockist or AUSTSAW technical staff as to the different options for your particular requirement. Also, a couple of other helpful sections are:

Diamond Blade Problem Solving Q&A
Guidelines for Sawing Procedures
Diamond Blade Operating Speeds

UNDERSTANDING DIAMOND BLADES

Brazed Bonds
Diamond segments are attached to the steel centre (core) by brazing. Solder is placed between the segment and core, and heated until the solder melts and flows between the two pieces. The braze bond is a reliable method of attaching segments to cores. Some types of braze bonds are even suitable for dry cutting or grinding.

Laser Welded Bonds
Diamond segments are attached to the steel centre (core) with a laser beam, which fuses the two pieces together. A laser weld is stronger than a braze bond, even as strong as the segment or core itself. A laser welded blade can withstand more stress and heat than a conventional braze bond blade.

A laser weld does not necessarily mean the blade can be used dry. The application or equipment involved in using many diamond blades requires that water be used with blade for cooling or maximum blade performance -even if the blade is laser welded.

Dry Cutting
These diamond blades may be used dry. Although no water is required for cooling, dry cutting blades must be cooled with air flow around the blade. For this reason, dry cutting blades ate recommended only for intermittent cutting. This means that every few seconds of cutting the blade should be allowed to run "free" with no load to allow air flow around the blade to dissipate the heat.

When using a concrete saw, only shallow cutting passes of 1" or so should be made until the full cutting depth is reached. This is called "step cutting". Dry cutting diamond blades are NOT recommended for long cuts under continuous cutting pressure, or full depth sawing in one pass.

Full depth cutting of masonry materials is possible.

Most dry cutting blades may be used with water to help reduce dust. However, wet cutting with a dry cut-ting blade may affect the blade's performance.

Wet Cutting
These diamond blades must be used with water to keep the blade core and segments cool during sawing, and to make the blade perform at peak efficiency. Wet cutting blades should NOT be used dry. Using wet cutting blades without water can cause excessive heat build-up, resulting in poor performance. severe blade damage and safety problems for those near the sawing operation.