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Common materials for the cutters (brazed tips or clamped inserts) include cemented carbide, polycrystalline diamond, and cubic boron nitride. [1] Tools that are commonly tipped include milling cutters (such as end mills, face mills, and fly cutters), tool bits, router bits, and saw blades (especially the metal-cutting ones).
The birth of the T-Max holder and the use of indexable inserts. [4] [5] 1969: Heat-resistant Gamma Coating, or GC, is introduced as a grade. [6] 1972: The Multi-Service marketing campaign is created, and the yellow coat becomes an important symbol. Tool-pool, machine-adapted tool recommendations and mini-catalogs are made available. [7]
IMC International Metalworking Companies B.V., otherwise known as IMC Group, is the holding company of several worldwide manufacturers of metal cutting tools. [citation needed] Together they produce a wide range of carbide inserts, carbide endmills and cutting tools covering all metal cutting applications. The IMC Group is in the automotive ...
The long-held view is that the carbon atoms fit into octahedral interstices in a close-packed metal lattice when the metal atom radius is greater than approximately 135 pm: [2] When the metal atoms are cubic close-packed, (ccp), then filling all of the octahedral interstices with carbon achieves 1:1 stoichiometry with the rock salt structure. [4]
Originally, all tool bits were made of high carbon tool steels with the appropriate hardening and tempering.Since the introductions of high-speed steel (HSS) (early years of the 20th century), sintered carbide (1930s), ceramic and diamond cutters, those materials have gradually replaced the earlier kinds of tool steel in almost all cutting applications.
Cutting tools are often designed with inserts or replaceable tips (tipped tools). In these, the cutting edge consists of a separate piece of material, either brazed, welded or clamped on to the tool body. Common materials for tips include cemented carbide, polycrystalline diamond, and cubic boron nitride. [2]