2023-10-10 22:00:00
Cutting tools are instruments designed to work material by removing chips. It seems that the first tools obtained by forging before the beginning of the Christian era were the chisel, the chisel and the asp-tongued drill, then the file and the saw.
With the appearance of the lathe, the comb allowed the creation of threading tools: taps then dies. Until the end of the 19th century, all tools were thus manufactured either by forging and machining, or by machining alone. The cutting material was molten steel.
During the 20th century, new materials appeared on the one hand (high-speed steels, metal carbides, ceramics, cermets, diamonds, etc.) and on the other hand shaping techniques such as molding, mass grinding , powder metallurgy, coatings, all providing increasingly efficient tools.
The 21st century is also starting with significant technological advances in the field of materials for cutting tools. There have been no new materials created (yet), but some of the existing materials have been greatly improved.
At the technico-economic level, it is common to admit that since around 2005, productivity has been multiplied by three taking into account improvements in cutting tools, machines, CAM, etc. This article describes all the technological advances in manufacturing materials. cut.
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