Showing posts with label carbide tipped tools. Show all posts
Showing posts with label carbide tipped tools. Show all posts

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.

Tuesday, 27 May 2014

Features of Tungsten Carbide Tools

Cutting tools are defined as a tool designed to cut material or object. Cutting tools are manufactured by various materials like carbide, high speed steal, cobalt alloys, ceramic, cermets, CBN and diamond. Most of the metal cutting tools are manufactured from Carbide. A cutting tool manufactured by carbide material like tungsten, titanium, or tantalum is called carbide cutting tool. Carbide is a binary compound that means consisting of only two elements. Carbide compound mainly have carbon, as well as more electropositive elements or less electronegative elements. Carbide components are hard material and having high heat and wear resistance. Tungsten is one of the carbide materials that has equal amount of carbon and tungsten atom.
Material that is used to make cutting tools must have following characteristics. There are hardness, toughness and wear resistance. Carbide material has all the above characters. Cutting tools are mainly designed to remove the unwanted portion from required one. Cutting tools are used to various kinds of works such as turning, shaping, plaining, milling and drilling. Metal cutting tools are classified as two types. There are single point and multi point. Tungsten cutting tools is multi point metal cutting tool that used in milling and grilling.
Tungsten Carbide Cutting Tools

Tungsten carbide tool is one of the best metal cutting tools, because of its characteristics such as hardness, toughness and scratching resistance. Compare with HSS, Carbide tools have higher temperature resistance. Tungsten carbide tool has sharp cutting edge compare with other tools, so they exactly cut the metal in required shape. And also have capable for cutting more hard metals. High temperature resistance of tungsten carbide tool increase the working speed of tool. As tungsten carbides have high temperature resistance and hardness, most of the manufacturers are using this in their high speed drill bits.
Tungsten carbide tool has long life time because of its hard and temperature resistance character. Tungsten carbide tools are used in both industrial and non-industrial. Tungsten carbide tools are mainly required in milling and drilling. Manufacturers regularly use tungsten carbide tools to cut hard material. However tungsten carbide tools have more features, which is less expensive. Special characters of Tungsten carbide tools are sharp cutting edge, more hardness and high wearing resistance. These are the characters are specify the tungsten carbide tool is best most among the cutting tools.