摘要:
The invention relates to an eight-edged rotatable and reversible cutting insert having two opposite, substantially square base surfaces which are twisted relative to one another about a central axis running perpendicularly to said base surfaces, and having four identical side surfaces, wherein a main lip is formed between each base surface and each side surface. A bearing surface is formed between two chip grooves which extend along the associated main lip of the respective side surface, said bearing surface extending symmetrically beyond the groove ends of the adjacent chip groove and transversely to the main lips until its adjoins the latter.
摘要:
In one embodiment, a cutting tool assembly used for creating grooves in a microreplication tool is described. The cutting tool assembly includes a mounting structure and multiple diamonds mounted in the mounting structure. For example, first and second tool shanks having first and second diamond tips can be positioned in the mounting structure such that a cutting location of a diamond cutting tip of the first tool shank is a defined distance from a cutting location of a diamond cutting tip of the second tool shank. The defined distance may correspond to an integer number of pitch spacings, and may be accurate to within a tolerance of less than approximately 10 microns.
摘要:
The invention relates to a barking device comprising a barking arm (1) and a barking tool (2) which is mountable in a tool seat of the barking arm. The barking tool comprises a convex mounting surface (13), while the seat surface (7) of the barking arm is concave. The barking tool is, with the aid of a connecting means, mountable in the tool seat and displaceable by rotating displacement. The connecting means comprises a screw (18) and a sleeve-like nut (21). The head (20, 23) of one of the connecting means parts (18, 21) is designed to prevent displacement and rotation.
摘要:
An object of the invention is to reliably control chip, particularly that produced in profiling. To achieve this, rake faces are formed on polygon faces of an insert in the form of a polygonal plate shape, and a pair of cutting edges extending respectively from corner parts of the polygon faces are formed on a ridge part of the polygon faces, and each of the rake faces is gradually inclined as it becomes farther away from the cutting edge, and a land formed along the cutting edge, is inclined so that it gradually sinks as it become farther away from the cutting edge at an angle of inclination smaller than a rake angle, and angles of inclination of these rake face and land are made smaller in the direction to separate from a tip of the corner part along the cutting edge, and a main convex being a convex spherical face shape is formed at intervals between the cutting edges, on the corner part C, and at least one pair of sub convexes being a convex spherical face shape is also formed respectively at positions away from this main convex, along the pair of cutting edges.
摘要:
In one embodiment, a cutting tool assembly used for creating grooves in a microreplication tool is described. The cutting tool assembly includes a mounting structure and multiple diamonds mounted in the mounting structure. For example, first and second tool shanks having first and second diamond tips can be positioned in the mounting structure such that a cutting location of a diamond cutting tip of the first tool shank is a defined distance from a cutting location of a diamond cutting tip of the second tool shank. The defined distance may correspond to an integer number of pitch spacings, and may be accurate to within a tolerance of less than approximately 10 microns.
摘要:
A cutting insert comprises first and second polygonally-shaped main faces arranged substantially parallel to one another, and a side face structure interconnecting the first and second main faces to define a peripheral edge. At least the first main face includes at least one projection extending to the peripheral edge, the projection formed by: a portion of the first main surface (defining a relief surface), a portion of the side face structure (defining a rake surface), and a portion of the peripheral edge (defining a cutting edge). The insert includes support surfaces defined by a portion of the second main face, and by portions of the side surface structure other than the rake surface.
摘要:
In one embodiment, a cutting tool assembly used for creating grooves in a microreplication tool is described. The cutting tool assembly includes a mounting structure and multiple diamonds mounted in the mounting structure. For example, first and second tool shanks having first and second diamond tips can be positioned in the mounting structure such that a cutting location of a diamond cutting tip of the first tool shank is a defined distance from a cutting location of a diamond cutting tip of the second tool shank. The defined distance may correspond to an integer number of pitch spacings, and may be accurate to within a tolerance of less than approximately 10 microns.
摘要:
In the case of a tool holder having a receptacle for a cutting insert, in particular a tangential cutting insert having eight lips, having a lateral bearing surface, a rear bearing surface and a bottom surface, the bottom surface is quadrangular in plan view and has a raised supporting region which has two supporting surfaces, positioned obliquely with respect to one another, for the cutting insert.
摘要:
In the case of a tool holder having a receptacle for a cutting insert in particular a tangential cutting insert having eight lips, having a lateral bearing surface, a rear bearing surface and a bottom surface, the bottom surface is quadrangular in plan view and has a raised supporting region which has two supporting surfaces, positioned obliquely with respect to one another, for the cutting insert.
摘要:
A cutting tool has an insert holder for retaining a tangential cutting insert in an insert pocket. The insert pocket has a bottom surface, a rear surface and a base surface. The base surface has three abutment protuberances that extend from the base surface. Each base abutment protuberance has a respective base abutment surface. The three base abutment surfaces abut the cutting insert at three points to provide stable seating of the cutting insert in the insert pocket.