摘要:
The present invention concerns a pressed cutting tool comprising a variable core diameter, a mold and a method for producing the cutting tool by pressing. Said cutting tool preferably comprises a shaft and a part comprising one or more helical flutes, wherein low points or lines in said flutes define the shape of said core. In a preferred embodiment, said core is conical. In a preferred embodiment, said cutting tool is an end mill and/or a drill.
摘要:
The present invention provides a coated cutting tool comprising a substrate and a coating, where the coating comprises at least one compound layer deposited by cathodic arc deposition, which has a thickness of 10-30 μm characterized in that the coating has internal stress ranges from low tensile stresses, lower than 0.2 GPa, to compressive stresses, lower than 3 GPa.
摘要:
The present invention relates to a double-sided indexable cutting insert (1) with first and second end surfaces (2) and four side surfaces (3) connecting the first and second end surfaces (2), wherein eight cutting edges (4) are formed in the transition between the first and second end surfaces (2) and the side surfaces (3), wherein each cutting edge (4) comprises a primary cutting edge (4a), a secondary concave cutting edge (4b) and a secondary convex cutting edge (4c), and each side surface (3) comprises a primary side surface (3a) and two secondary side surfaces (3b), the primary side surface (3a) being arranged between the two secondary side surfaces (3b), wherein the secondary side surfaces (3b) are deflected with respect to the primary side surface (3b) towards a center axis (A) of the insert (1). The invention further relates to a cutting tool (7) having at least one pocket (70) for retaining an insert (1).