141 |
Superhard mill cutters and related methods |
US10927968 |
2004-08-27 |
US20050133277A1 |
2005-06-23 |
Richard Dixon |
Superhard ball mill cutters and their materials and manufacturing methods. |
142 |
Milling cutter |
US10990281 |
2004-11-16 |
US20050129476A1 |
2005-06-16 |
Dirk Kammermeier; Peter Mergenthaler |
Milling cutter (1), which can rotate about a cutter longitudinal axis (A), comprises a sleeve-shaped shaft (2) provided with an inner lying chip evacuation channel (11), which is arranged, in essence, symmetric to the cutter longitudinal axis (A), and with a suction opening (12). The milling cutter also comprises a milling head (3, 3a, 3b, 3c), which is held coaxial to the cutter longitudinal axis (A) and to the shaft (2) while being held on said shaft and which comprises, as cutting edges (7, 9), a face cutting edge (7) and a peripheral cutting edge (9). At least one cutting edge (7, 9) forms a positive rake angle (γa, γr) on the periphery of the milling head (3, 3a, 3b, 3c). The milling cutter (1) is particularly suited for machining light metals, especially for circular milling. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, possibly following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner. |
143 |
Milling cutter having three continuously curved cutting edges |
US10770513 |
2004-02-04 |
US20040223817A1 |
2004-11-11 |
Carl-Erik
Berglow; Mattias
Puide; Sven-Erik
Persson; Kurt
Nordlund |
A milling cutter includes a body having three cutting edges formed by the body. An end of the body situated opposite the cutting edges defines a fastening end of the milling cutter. Each cutting edge extends from an outer periphery of the body substantially to a center rotational axis of the body along a substantially convexly curved path. Radially outer and radially inner ends of each cutting edge are situated axially rearwardly of an axially foremost point of the cutting edge. Each cutting edge lies on a respective imaginary sphere having a radius which has a center which that is spaced from the cutting edge in a direction toward the fastening end and spaced radially from the center axis. |
144 |
Rotary cutting tool |
US10454079 |
2003-06-04 |
US20040022594A1 |
2004-02-05 |
Gil
Hecht |
A rotary cutting tool has a cutting head, a screw member and a tool shank. The cutting head has an axially directed through bore with locking wings protruding from the bore surface. Each locking wing having a sloping locking surface and stopper with a stop surface. The screw member has outwardly radially protruding clamping wings each having a sloping clamping surface, and an associated side abutment surface. The screw member is in threaded engagement with the tool shank, with the clamping wings and locking wings aligned in pairs with the locking and clamping surfaces of each pair in abutment, and with each stop surface in abutment with a given side abutment surface. |
145 |
Toolholder and insert arrangement with a shrink fit coupling |
US10168375 |
2002-08-26 |
US20030075879A1 |
2003-04-24 |
Mikael
Lundblad; Sven
Engstrand |
A toolholder and insert arrangement includes an insert having a cutting portion and a shank portion at a base of the cutting portion, and a toolholder having a first end attachable to a spindle and a second end having a shank-receiving opening. When the shank portion is not disposed in the shank receiving opening and the toolholder is at an ordinary room temperature, the shank-receiving opening is smaller than the shank portion, and upon heating of the toolholder to a predetermined temperature above the ordinary room temperature and above an ordinary operating temperature the shank-receiving opening expands to become at least as large as the shank portion and, upon cooling of the toolholder to a temperature below the predetermined temperature and after insertion of the shank portion in the shank-receiving opening, the shank-receiving opening shrinks to generally conform to a shape of the shank portion. |
146 |
Cutting tool assembly |
US09765622 |
2001-01-22 |
US06503027B2 |
2003-01-07 |
Yuri Men |
The present invention provides a cutting tool assembly comprising a tool shank a pull rod and a cutting head. The tool shank has an axially extending elongated hole. A forward portion of the elongated hole being formed by first and second non-coaxial, partially overlapping, axially extending cylindrical bores. The pull rod has forward coupling portion that cooperates with a rear-coupling portion of the cutting head, forming a joint coupling region. The pull rod and the rear-coupling portion of the cutting head are retained in the elongated hole in the tool shank with the joint coupling region situated in the forward portion of the elongated. |
147 |
Endmill and cutting method |
US09244415 |
1999-02-04 |
US06497540B1 |
2002-12-24 |
Hiroshi Shikata; Shoichi Kishita; Nobuhisa Ujiie |
An endmill having a shank and a milling head having cutting teeth continuous from a peripheral surface toward a forward tip face, wherein the endmill has a through hole extending from the forward tip face of the head to the shank past the head along a rotation axis of the endmill. The head and shank comprise separate component parts and the head is mounted on the shank by inserting a screw member from the tip end face into the hole and fixing the screw member to the shank. |
148 |
Cutting tool assembly |
US09895299 |
2001-07-02 |
US06494648B2 |
2002-12-17 |
Jacob Harpaz |
The present invention provides a cutting tool assembly having a tool shank with an elongated hole extending axially through the tool shank. An elongated support bar having threaded bore at its forward end is retained in the elongated hole. A cutting head having a forward cutting portion and a rear threaded portion is retained in the support bar with its rear threaded portion threadingly engaged with the threaded bore in the forward end of the support bar. |
149 |
Tool joint |
US09833817 |
2001-04-13 |
US06485220B2 |
2002-11-26 |
Gil Hecht |
A tool joint comprising a male member a female member. The male member having a coupling portion rearwardly from a body portion. The coupling portion having a frustoconical forward portion and a threaded rear portion. The thread having an intermediate section of uniform depth and terminating in forward and rear end parts. The female member having a bore extending rearwardly from a front surface. The bore having a frustoconical forward portion and a threaded rear portion. The thread having an intermediate section of uniform depth and terminating in forward and rear end parts. Upon threaded coupling of the male and female members to form a tool joint connection, the threaded portion of the male member engages the threaded portion of the female member. |
150 |
Rotary cutting tool and holder therefor |
US09536673 |
2000-03-28 |
US06394711B1 |
2002-05-28 |
Timothy L. Brosius |
This invention relates to a rotary cutting tool and holder wherein the holder comprises an elongated shank having an internal channel and a conical seat at one end adapted to receive a rotary cutting tool; and a thru pin adapted to fit within the channel. In position, a threaded end of the thru pin projects within the conical seat for attachment of the rotary cutting tool. The attachment end of the rotary cutting tool is conical in shape and designed to fit conformably into the conical seat of the holder. An internal bore through the thru pin and cutting tool permits the transmission of coolant/lubricant to outlets in the cutting head of the cutting tool. The cutting tool is easily removed and replaced for maintenance or other purposes. |
151 |
Shaft tool with detachable top |
US793123 |
1997-05-20 |
US5971670A |
1999-10-26 |
Goran Pantzar; Bjorn H.ang.kansson; Stefan Roman; Per-Anders Holmstrom |
A shaft tool for metal cutting machining, includes a cutting portion and a shaft portion. The cutting portion includes a fist part formed with a cutting edge, and a second part formed with an external screw thread. The first and second parts are of one-piece integral construction. The shaft portion includes an internal screw thread to which the external screw thread is removably secured. |
152 |
Removable copying cutter |
US446894 |
1995-05-17 |
US5833402A |
1998-11-10 |
Philippe Roger Martin |
The present invention relates to a copying cutter provided with a cylindrical or conical body having a spherical end, constituting the active portion of the cutter, said end including a plurality of flutes inclined at a determined angle .theta. relative to the longitudinal axis of the cutter and formed along circular arcs at a determined distance x from the midplane P of the cutter, an inside face and an outside face of each of the flutes constituting, after machining, respectively a cutting face and clearance faces of each tooth of the cutter. The clearance faces comprise a first clearance face and an additional clearance face presenting at least a first facet. The cutting face has a cutting angle .gamma. given by the following equation: ##EQU1## where R is the radius of the cutter. The present invention also relates to a method of manufacturing the cutter. |
153 |
Cutting tool |
US513910 |
1995-09-07 |
US5607263A |
1997-03-04 |
Horst Nespeta; Alfred Potzl; Manfred Simon; Franz Pfob |
A cutting tool having a cutting plate with at least one blade and a central axial hole through which a head screw can be used to connect the cutting plate to a holder having an axial bore through its center for receiving the screw and a recess around the bore for receiving a complimentary projection located around the central hole of the cutting plate which is longer than the recess is deep. Alternate embodiments are provided in which the projection is located on the holder and the recess in the face of the cutting plate. In all embodiments, the recess and projection have contacting surfaces which substantially eliminate axial forces on the head screw. |
154 |
Cutting insert |
US289460 |
1994-08-12 |
US5496137A |
1996-03-05 |
Moti Ochayon; Arie Falk |
A cutting insert having a cutting head and a coupling shank integral at one end thereof with the cutting head and including a screw threaded portion. The cutting insert is formed by a powder metallurgy process of compacting and sintering and the screw threaded portion is constituted by a substantially cylindrical body having a pair of diametrically opposed, longitudinally truncated planar portions interposed between substantially curved cylindrical portions having arcuate surfaces on which there are formed a non-continuous screw thread, the arcuate surfaces extending between 50 to 85% of the total peripheral extent of the cylindrical body of which they form part. There is also disclosed a powder metallurgy process for manufacturing the cutting insert. |
155 |
Cutting tool with guide for trimming laminate |
US024595 |
1993-03-01 |
US5352072A |
1994-10-04 |
Fredric A. Velepec |
A cutting tool for trimming a laminate flush with the surface of a substantially perpendicular laminate. The cutting tool includes a ball bearing guide assembly and a glue well shaft section. This glue well shaft section prevents softened glue encountered during trimming operations from contacting the ball bearing guide assembly. A washer provided between the glue well shaft section and the ball bearing guide assembly further prevents softened glue encountered during trimming operations from contacting the ball bearing guide assembly. |
156 |
Diamond fluted end mill |
US682483 |
1991-04-09 |
US5070748A |
1991-12-10 |
Scott M. Packer |
An end mill forms at least a pair of spiral grooves or flutes in the mill side walls. Each groove includes polycrystalline diamond formed along a leading edge of each flute. A process for forming the diamond edged on the PCD material bonded within the flute. |
157 |
Tool for metal cutting |
US204284 |
1988-06-09 |
US4850759A |
1989-07-25 |
Bengt N. G. Strand; Sven L. Eklund |
The present invention relates to a tool for metal cutting, said tool in working position preferably rotating around its longitudinal center axis, and that the tool comprises a cutting body (10;10a;10b;10c) and a shaft (12;12a;12b;12c), that supports the cutting body (10;10a;10b;10c).The aim of the invention is to solve the problem to design milling, drilling and turning tools of small dimensions having exchangeable cutting edges.The present invention is characterized in that the cutting body of the tool is designed as a uniform body comprising integrated cutting edges. By means of a locking screw (11; 11a;11b;11c) the cutting body (10;10a;10b;10c) is detachably fixed in the shaft (12;12a;12b;12c). |
158 |
Rotary cutting tool |
US14396520 |
2013-04-26 |
US10046402B2 |
2018-08-14 |
Peter Raynor |
A rotary cutting tool (10) comprises a shank (12) formed of a first material of a first hardness. The shank (12) has a first end (12a), and a plurality of elements (14) are provided at the first end (12a) of the shank (12). The elements (14) are formed of a second material of a second hardness greater than that of the first hardness. The elements (14) provide a platform to be able to create a plurality of cutting edges or teeth (18, 20a). A method of forming such a rotary cutting tool is also provided. |
159 |
TOOL HEAD FOR A MODULAR SHANK TOOL |
US15645221 |
2017-07-10 |
US20180126467A1 |
2018-05-10 |
Christoph Gey; Jürgen Schwägerl |
A tool head for use with a modular shank tool includes at least two preforms. Each preform of the at least two preforms is made separately from the other preform of the at least two preforms from granular materials and then put together and jointly compressed and integrally bonded. |
160 |
Replaceable cutting head |
US14064767 |
2013-10-28 |
US09925602B2 |
2018-03-27 |
Takayuki Azegami; Tarou Abe |
A replaceable cutting head stably rotates a head body using a work tool during attachment. An outer periphery of the head body is provided with a plurality of chip discharge grooves extending along a direction of an axis, cutting blades extending along the chip discharge grooves, and a pair of latching faces that are formed by cutting the outer periphery of the head body and are arranged back to back with the axis interposed therebetween at a base end portion along the axial direction. A first chip discharge groove, and a second chip discharge groove having a narrower width along a circumferential direction around the axis than the first chip discharge groove at at least the base end portion along the direction of the axis are included in the chip discharge grooves. At least one latching face is connected to a base end portion of the second chip discharge groove. |