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Tuesday, December 15, 2015

Keeping Your Edge: Diamond Tools

Diamond tools require proper care to ensure that it performs as needed. Unlike the graphite electrodes in EDM machines, diamond tools tend to be expensive.  Premature replacement of the tools can cost a company plenty of money. Knowing about the best practices with regards to caring for diamond tools is crucial to maximize the profitability of the operation.

Caution must be taken when handling the tools. Although diamond is high resistance to wear, placing the cutting tip of the tool on hard surfaces can have long-lasting effect on its sharpness and cutting ability.  This is especially true when dealing with tools that have been used very recently and are still very hot. The pressure from the weight of the tool can cause the binder that holds the diamond particles suffer deformation and effectively blunting the tool.

In cleaning the tools, make sure to use the right cleaner. Some cleaners are too acidic and can damage the tool. Check the pH and other properties of the cleaner to ensure that it is suited for cleaning diamond tools.

Another things to keep an eye on is overheating as extreme heat can damage both the binder and diamond particles. Lengthy cutting operation that generates extreme heat requires the use of coolant to keep temperature under control.

Using diamond tools on high-carbon steel and alloys can cause a reaction between the diamond particles and carbon from the work piece. This molecular structure of the diamond particles can get altered, turning it into soft graphite.