Tungaloy Corporation patents

Cutting tool

A cutting tool comprises: a plate member which is provided, at a leading end thereof, edge parts; a support member which supports the plate member so as to cause the edge parts to be projected; and a coolant supply part which has an ejection port and which ejects, from the... Tungaloy Corporation

Coated tool

A coated tool includes a substrate and a coating layer having a plurality of first laminated structures alternated with a plurality of second laminated structures. Each of the first laminated structures and each of the second laminated structures contains at least two kinds of layers having different composition and alternately... Tungaloy Corporation

Coated cutting tool

A coated cutting tool is provided which allows for satisfactory machining over a long period of time, particularly in the machining of difficult-to-machine materials with low thermal conductivity. The coated cutting tool includes a substrate and a coating layer formed on a surface of the substrate, wherein: at least one... Tungaloy Corporation

Friction material

A friction material having 40 mass % or more to 80 mass % or less of a matrix of at least one of a metal, an alloy, a metal compound and an intermetallic compound; 5 mass % or more to 30 mass % or less of solid particles of at... Tungaloy Corporation

Cutting insert and indexable cutting tool

A cutting insert including first cutting edges and second cutting edges respectively formed in a first end surface and a second end surface which are opposed to each other; at least one groove formed in a peripheral side surface which connects the first end surface and the second end surface;... Tungaloy Corporation

Cutting tool and indexable rotary cutting tool

A cutting insert including a first end surface, a second end surface and a peripheral side surface extending therebetween. The first and second end surfaces each having one substantially quadrangular portion and two substantially semicircular portions which are respectively joined to two opposing sides of the substantially quadrangular portion. An... Tungaloy Corporation

Cutting tool

A cutting tool having a cutting edge member which forms at least one corner part, wherein a material for the cutting edge member is selected from either diamond, an ultrahigh-pressure sintered body containing cubic boron nitride or a PVD or CVD coating applied to a surface of the ultrahigh-pressure sintered... Tungaloy Corporation

Coated tool

A coated tool includes a substrate and a coating layer disposed on a surface of the substrate. The coating layer includes a first stack structure (3) and a second stack structure (4). The first stack structure has two or more kinds of layers with different compositions periodically stacked with an... Tungaloy Corporation

Cubic boron nitride sintered body and coated cubic boron nitride sintered body

A cBN sintered body has 40%-85% cBN by volume and 15% to 60% binder phase by volume. and inevitable impurities. The binder phase has an Al compound including Al and at least one element selected from N, O and B, and a Zr compound including Zr and at least one... Tungaloy Corporation

Cutting insert, tool body and cutting tool

A cutting insert having a first end surface, a second end surface, and a peripheral side surface. The peripheral side surface includes a rake surface, a front flank and a first cutting edge located in an intersecting edge between the rake surface and the front flank. The first end surface... Tungaloy Corporation

Tool body and cutting tool

The present invention relates to a tool body provided with at least one insert seat. The insert seat comprises a bottom wall surface and a side wall surface. The side wall surface comprises a first side wall surface and a second side wall surface. The first side wall surface comprises... Tungaloy Corporation

Tool body and cutting tool

A tool body having an insert seat and a cutting tool which allow a cutting insert to be stably held are provided. A tool body according to the present invention is a tool body having an insert seat for mounting a cutting insert on the tool body, wherein the insert... Tungaloy Corporation

Tool, adjustment mechanism, tool body and cutting tool

A cutting insert which is suitable for high cutting speed, a tool body thereof and a tool are provided. A tool according to the present invention is a tool in which a leading end thereof is provided with a force transmitting portion and for which a rotational axis extending from... Tungaloy Corporation

Cutting insert having outwardly inclined side surface and inwardly inclined lower surface, and rotary cutting tool

A cutting insert has opposing first and second end surfaces, and a peripheral side surface (connecting the end surfaces. A central axis penetrates the two end surfaces. The peripheral sure surface includes an outwardly inclined first side surface part related to a major cutting edge and a second side surface... Tungaloy Corporation

Tool body, insert support mechanism and cutting tool

A cutting tool has an insert receiving pocket provided with a base surface. The base surface has a screw hole, and second and third engagement surfaces which are brought into contact with a first engagement surface formed in the lower surface of the cutting insert, thereby suppressing shifting of the... Tungaloy Corporation

Cubic boron nitride sintered body and coated cubic boron nitride sintered body

A cubic boron nitride sintered body has between 50% and 75% cubic boron nitride by volume and between 25% and 50% binder phase by volume, and inevitable impurities. The binder phase contains an Al compound and a Zr compound. The Al compound contains Al and one or more of N,... Tungaloy Corporation

Cutting insert, body for the cutting insert, and cutting tool

A cutting insert has an upper surface, a lower surface, a side surface connecting the upper and lower surfaces. An intersecting edge between the upper surface and the side surface is provided with a cutting edge. The cutting edge has, in order, a second major cutting edge, a first major... Tungaloy Corporation

Coated cutting tool

A coated cutting tool includes a substrate and a coating layer formed onto the surface of the substrate. The coating layer contains an outermost layer. The outermost layer contains NbN. The NbN contains cubic NbN and hexagonal NbN. When a peak intensity at a (200) plane of cubic NbN is... Tungaloy Corporation

Coated cutting tool

A coated cutting tool has a substrate and a coating layer formed onto a surface of the substrate. The coating layer contains a hard layer of a composition represented by (TixM1-x)N, wherein M represents at least one kind of an element selected from the group consisting of Zr, Hf, V,... Tungaloy Corporation

Cutting insert having a variable-width land associated with grooves formed in the upper and side surfaces and indexable cutting tool

A cutting insert (1) has a first end surface (2); a second end surface (3) opposing the first end surface; and a peripheral side surface (4) connecting the first and second end surfaces. A cutting edge (6) extends along an intersecting edge between the first end surface and the peripheral... Tungaloy Corporation

Indexable rotary cutting tool and tool body

An indexable roughing end mill having a peripheral surface provided with a plurality of spiral grooves. When the positions of cutting inserts (40) arranged in each spiral groove (28) are defined as a first segment to an nth segment from a leading end surface (22) side of a tool body... Tungaloy Corporation

Cutting insert having bottom surface with inclined parts and indexable rotary cutting tool

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... Tungaloy Corporation

Cutting insert having varying rake angle and variable-width land, and cutting tool

A polygonal cutting has opposing first and second end surfaces connected by a side surface, and a plurality of cutting edges formed between the end surfaces and the side surface. Each cutting edge is formed at corner and includes a corner cutting edge and a major cutting edge connected to... Tungaloy Corporation

Rotary cutting tool having adjacent cutting inserts with wave-shaped edges and overlapping rotational trajectories coinciding in phase

A rotary cutting tool has a plurality of circumferentially spaced grooves, each having a plurality of cutting inserts mounted. Each cutting insert has a wave-shaped major cutting edge, a corner cutting edge, and a minor cutting edge. The cutting inserts are arranged such that, the phases of the waves of... Tungaloy Corporation

Cutting insert having end surface with side edges connected by an inclined rake surface and cutting tool

A cutting insert has a first end surface and a second end surface which are opposed to each other. The first end surface has at least one apex and two side edges which extend so as to sandwich the apex. At least part of the two side edges serves as... Tungaloy Corporation

Cermet tool

A cermet tool includes from 75-95 volume % of a hard phase and from 5-25 volume % of a binder phase. The hard phase has a first hard phase with a core portion of (Ti, Nb, Mo) (C, N) and a peripheral portion of (Ti, Nb, Mo, W) (C, N)... Tungaloy Corporation

Cutting insert having arc-shaped cutting edges and inclined seating surfaces, tool body and cutting tool

A cutting insert has first and second end surfaces, a peripheral side surface, a reference central axis A perpendicular to and passing through the two surfaces, and a cutting edge having at least one circular-arc-shaped cutting edge. A contact surface portion is formed in the second end surface. The arc-shaped... Tungaloy Corporation

Insert attachment mechanism, rotary cutting tool, tool body, wedge member and adjustment member

An insert attachment mechanism (100) detachably attaches a cutting insert (2) to an insert attachment part (21) of a tool body (3). The insert attachment mechanism includes an adjustment member (30) and a wedge member (10). The adjustment member (30) is arranged on an inner side of the cutting inset... Tungaloy Corporation

Coated tool

The coated tool has a substrate and a coating layer. The coating layer contains alternating first and second laminated structures. The first laminated structure contains at least two kinds of alternating layers having different compositions. An average thickness of the layers contained in the first laminated structure is 60 nm... Tungaloy Corporation

Cutting insert having constant-width wiper surface and cutting tool

An indexable cutting insert has opposing first and second polygonal end surfaces (2, 3) connected by a peripheral side surface (4). Sets of cutting edges (5) are formed at the intersection of each end surface with the peripheral side surface. Each set of cutting edges includes a corner cutting edge... Tungaloy Corporation

Indexable rotary cutting tool

A cylindrical tool body has a peripheral surface provided with one or more spiral grooves extending from a base end side to a leading end side. The grooves each have a plurality of insert seats which are shifted relative to one another from the base end side toward the leading... Tungaloy Corporation

Cutting insert and cutting tool

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... Tungaloy Corporation