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Model Engineering Glossary: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Carbide Tools

Lathe cutting tools to which carbide tip inserts have been brazed or screwed, to provide cutting action on harder materials than the high speed cutters are capable of.

Tungsten carbide:

  • approximately two times stiffer than steel
  • double the density of steel midway between lead and gold
  • comparable with corundum in hardness - 9 on Mohs scale, Vickers number of around 2600
  • maintain a sharp cutting edge better than other tools, they generally produce a better finish on parts, and their temperature resistance allows faster machining
  • can only be polished and finished with abrasives of superior hardness such as cubic boron nitride and diamond powder, wheels, and compounds.
  • resistant to acids - only attacked by hydrofluoric acid/nitric acid mixtures above room temperature
  • reacts with fluorine gas at room temperature and chlorine above 400°C
  • can withstand higher temperatures than standard HSS tools - high melting point at 2870°C

A close up of the insert shows the fine edge and the slight serations on the inner surface to break chips.

Review - Glanze Profiling Tool - a 6mm diameter cutting tool.


The detail in the tool is fantastic with the relief at the rear of the tip that allows the sides of the carbide tip to locate securely with the tool.

Review - Glanze TCT Tools - With the Warco 240B lathe I needed some larger carbide tipped cutting tools



A solid carbide end mill, this is a very small (3mm) 3 flute end mill - I bought this particular end mill to remove a broken tap by machining it out of an aluminium crankcase.

Review - Solid carbide End Mills - These are not cheap, but if you need to machine very hard materials then this is one of the options


See also: Lathe Tool Reviews.




Model Engineering Glossary: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z