Tuesday, 5 August 2014

How we can get long life in tools?

People always likes to get the tools with prolong life. Cutting tool's life can be based on the economical, tool geometry, performance. The economical conditions based on the cutting speed, feed and depth measures. The tool geometry is means to obtaining the optimum geometry by the tools. The performance of the tools is based on the tool material, cutting fluid, work material and machine tool.
Based on the tools type the life can be varied such ad drill and milling tools life is different from one another. Excessive feed pressure, poor cutting with sharp drills or drill breakages can indicate that the drill tip has an insufficient lip relief angle. Drilling machines with continuous speed change is better than stepped or periodical speed change. In milling tools, the shallow depth with high feed gives higher metal removal rate and increased life.
Here are some ideas for getting tools in long life,

Using lubrication
While using tools for larger diameter steel area, it produces the heat and damages the tools. For avoiding that use oil for, this lubricates the metal and tools as it spins. The oil also acts as a heat sink absorbing much of the heat. Simply squirt oil on the metal before you start to tools and add more oil as you operate.

Use coating
To increase the life of high-speed steel, tools are sometimes coated. One such coating is TiN (titanium nitride). Most coatings generally increase a tool's hardness and/or lubricity. A coating allows the cutting edge of a tool to cleanly pass through the material without having the material stick to it. The coating also helps to decrease the temperature associated with the cutting process and increase the life of the tool.

Using air circulation
Tools with the turning heads and turning type tools using the coolant bearings for avoiding the heat also gives long tool life. Usually the machine tools are having sealed bearing in the head but it will not help during overheat, while it also cause the problem. For avoiding this problem the bearing with air circulations can help to cool the tools and it increases the tools life.

1 comment:

  1. Different ways to get long life in tolls like Using lubrication,Use coating,Using air circulation. You describe wonderfully these ways to make long life in tools. Thanks for sharing such info.

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