A method for the near-net-shape manufacture of hard-metal pressed articles comprises providing a multi-part die comprising a plurality of lateral mold parts defining lateral surfaces of a cavity for a pressed article. At least one of the plurality of lateral mold parts further defines a portion of an upper side of the cavity. The lateral mold parts are fed. At least two lateral punch parts are fed. At least two of the plurality of lateral mold parts are provided with a guide recess for one of the at least two lateral punch parts. A filling unit is fed above an opening of the cavity, and the cavity is filled with a hard-metal powder. At least one upper mold part is fed, which defines a portion of the upper side of the cavity. The lateral mold parts and the upper mold part are firmly held to form the cavity. The powder is compressed with at least two lateral punch parts. The lateral mold parts, the upper mold part and the punch parts are opened for demolding the pressed article.

A cutting insert includes an insert body having a central longitudinal axis. The insert body has a first radial side and a second radial side. A first axial side includes a first relief face, a second relief face, and a first recess having a first bottom surface. The first relief face, the second relief face, and the first bottom surface are arranged such that each point of same is visible from either a first side view towards the first radial side or from a second side view towards the second radial side. The insert body is longer along the longitudinal direction at a central portion towards the central longitudinal axis than at an outer portion towards one of the first or second radial sides. Further a milling tool is disclosed.

A cutting insert and a cutting tool having same. The cutting insert includes: an upper surface; a lower surface having a flat surface; a fastening hole penetrating the upper surface and the lower surface; side surfaces each connecting to the upper surface and the lower surface; and cutting edges formed by the upper surface and the side surfaces. A first cutting edge is inclined downward. A major side surface comprises a first major side surface connected to the upper surface so as to constitute the first cutting edge, and a second major side surface connected to the first major side surface and the lower surface. A minor side surface comprises a first minor side surface connected to the upper surface so as to constitute a second cutting edge, and a third minor side surface connected to the upper surface and the lower surface.

A cutting insert has a first (top) end surface, a second (bottom) end surface, a peripheral side surface connecting the top and bottom end surfaces, and a mounting hole having a central axis O which penetrates the top and bottom end surfaces. Cutting edges are formed on an intersecting edge between the first end surface and the peripheral side surface. The second end surface has an inclined part. When a virtual plane substantially perpendicular to the axis O and passing through any point of the cutting edges is defined, the inclined part is inclined so as to be more distant from the virtual plane, heading from the peripheral side surface to the axis O. A projected part projected in a direction along the axis O is formed in an area around the mounting hole in the inclined part. This reinforces the strength of the mounting hole.

A cutting insert has an upper surface (21), a lower surface (91) and a side surface (61) that connects the two surfaces. A cutting edge is formed at an intersecting edge between the upper surface (21) and the side surface (61). The cutting edge includes at least a major cutting edge (33), a corner edge (34) connected to the major cutting edge (33), and a curved wiper edge (35) located on the opposite side of the major cutting edge (33) across the corner edge (34). A first angle made by the major cutting edge (33) and the chord of the wiper edge (35) is 155<180, and a positive land is formed in the wiper edge (35). The cutting edge may further include an inner cutting edge (36) located on an opposite side of the corner edge (34) across the wiper edge (35).

A slotting tool body includes a disc-like cutter portion and a shank portion projecting rearwardly therefrom. The cutter portion includes a resilient clamping portion having a peripherally disposed insert receiving slot. The shank portion includes a peripherally disposed forward shank recess that is axially adjacent the cutter portion. A radially inward portion of the insert receiving slot merges in the rearward direction with the forward shank recess. A cutting insert is releasably and resiliently clamped in the insert receiving slot to form a rotary slot cutting tool. The cutting insert includes two cutting portions that each include a long and short insert lateral extension, the long insert lateral extension being longer than the short insert lateral extension. The longest insert lateral extensions are orated on opposite sides of the cutting insert.

A cutting insert having two opposing end surfaces, two identical opposing major side surfaces and two identical opposing minor side surfaces. Each end surface has four corners comprising two lowered corners and two raised corners, the two lowered corners being diagonally opposite each other, the two raised corners being diagonally opposite each other. The cutting insert also includes a major cutting edge formed at an intersection of each major edge and the end surface. A section of the major cutting edge proximate the raised corner constitutes a leading end of the major cutting edge, and a section of the major cutting edge proximate the lowered corner constitutes a trailing end of the major cutting edge. An angled margin only partially extends along the leading end of the major cutting edge and segments the major cutting edge.

The purpose of the present invention is to provide a cutting insert capable of reducing cutting load and enhancing squareness. A cutting insert, according to one embodiment of the present invention, comprises: first and second end surfaces which face opposite directions to each other and have four corners wherein two ascending corners are placed in one diagonal position, and two descending corners lower than the height of the ascending corners are placed in the remaining diagonal position; first and second main side surfaces which are placed between the first and second end surfaces, face in opposite directions to each other, and have a throughhole connecting the first and second main side surfaces to each other; and first and second auxiliary side surfaces placed between the first and second end surfaces and between the first and second main side surfaces, wherein, when seen from the first or second end surface, each of the first and second main side surfaces comprises: a central main clearance surface placed on a central portion thereof; a first peripheral main clearance surface which is placed between the central main clearance surface and the ascending corners, and which forms an obtuse angle with respect to the central main clearance surface such that the central main clearance surface may protrude; and a second peripheral main clearance surface which is placed between the central main clearance surface and the descending corners, and forms an obtuse angle with respect to the central main clearance surface such that the central main clearance surface may protrude.

A ridgeline between the top surface and the side surface includes: a nose cutting edge portion having a curved line shape, the nose cutting edge portion having a first end and a second end opposite to the first end; a major cutting edge portion contiguous to the first end; and a wiper cutting edge portion contiguous to the second end. The top surface includes: a first rake face contiguous to the wiper cutting edge portion; a second rake face contiguous to the major cutting edge portion; and a third rake face contiguous to the nose cutting edge portion and contiguous to each of the first rake face and the second rake face. A boundary line between the second rake face and the third rake face is separated from the first end and is contiguous to the major cutting edge portion.

A cutting insert includes a main body including a first face, a second face, and a third face. The second face includes a rake face. Among the outer-peripheral sides of the second face, the boundary portion with the first face is a main cutting edge. When viewed from the side where the first face is disposed, the main cutting edge includes a first straight portion, a second straight portion, and a curved portion. The first straight portion is located adjacent to a reference side. The second straight portion is arranged at a distance from the first straight portion. The curved portion connects the first straight portion and the second straight portion. A first intersection angle of the first straight portion with respect to the reference side is different from a second intersection angle of the second straight portion with respect to the reference side.