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WO/2011/058469A1 |
Tapping device (1) comprising a workpiece support (4) for the workpiece that is to be tapped, running substantially in a horizontal plane in transverse (I-I) and longitudinal (II- II) directions, and comprising a moving head support (5) ...
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WO/2011/025079A1 |
The present invention relates to a tooth profile forming device capable of easily forming a tooth profile and reducing the cost required for the molding process of the tooth profile, and a tooth profile forming method using the device. T...
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WO/2011/018210A1 |
The invention relates to milling tools, comprising a shaft (1) and a work element (2), that is provided with holders (7) for cutting inserts (8). So that the milling tool allows secure and reliable fastening and positioning of the cuttin...
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WO/2011/004455A1 |
Disclosed is a thread forming tap wherein frictional torque or heat generation is reduced because the margin section is substantially 0 in connection with a shape near the top of a protrusion (δ=0°) to thereby decrease a contact area w...
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WO/2010/145801A1 |
The tool has a clamping part (2) and a working part (11). It consists of a wear-resistant material, which contains tungsten carbide which has a grain size that lies in the range between approximately 0.2 and approximately 0.5 µm. The cl...
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WO/2010/120516A2 |
A method and apparatus for tapping into a pressurized multiple strings of coaxially situated tubulars for wells and/or platforms which have overturned wherein the tapping occurs underwater via a diver or remotely operated vehicle. The as...
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WO/2010/103611A1 |
Since the core diameters (d1, d2) of a spiral flute (20) are differentiated across a level difference portion (30), which is arranged at the rear end of a lead chamfer part (22) of a thread part (16) or on the side closer to the shank (1...
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WO/2010/101512A2 |
A thread milling insert includes a plurality of teeth longitudinally spaced along an edge of the insert, each tooth having a cutting edge at a tip of the tooth, a longitudinal distance between any two cutting edges being at least two tim...
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WO/2010/095249A1 |
Disclosed is a tap with a drill wherein three drill blades (26) and three threading edges (24) are respectively provided, three oil holes (28) are provided to penetrate in the axial direction, the core diameter (W) is set in a range of 0...
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WO/2010/049989A1 |
A spiral tap (10) in which the external thread at a chamfer (16b) has such a profile as the outer circumferential side portion of a thread having the same dimension as that of a complete thread (16a) is cut linearly on the cross-section ...
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WO/2010/046060A1 |
The thread former is used for the non-cutting shaping of threads and has a main body (1') on which the moldings (6) are provided, distributed over the circumference. Said moldings are provided with thread-forming teeth (13, 14). Profile ...
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WO/2010/045054A2 |
A cutting tap (20, 40) includes a body (22, 42) having an axial forward end (24, 44) and an axial rearward end (26, 46) and a central longitudinal axis (Z-Z). The body has a fluted section (30, 50) at the axial forward end. The fluted se...
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WO/2010/034455A1 |
The invention relates to a screw tap (1) having a shaft (100). According to the invention, the function of the screw tap drive in applying cutting force is improved in that a recess is introduced into the front end (4) of the shaft (100)...
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WO/2010/028772A1 |
A device for producing a thread in a hole of a workpiece by means of a press or the like, which comprises a static bottom part (10) and a ram (12) which can be linearly moved thereto, having a rotationally drivable thread former (48) mou...
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WO/2010/022552A1 |
A device for forming the thread on the reinforcing rod end is positioned with expanding tools with at least two times. The device includes chamfering, skimming and threading tools (4), expanding and limiting units (3), arm expanding wedg...
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WO/2010/004980A1 |
An adapter (21) for tapping used for a turret punch press comprises ring gears (29) to which tapping metal molds (25) are attached, and a gear holder (31) in which the ring gears (29) are installed and which can be attached to a turret (...
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WO/2009/155884A1 |
A lead-in type interference fit pipeline external thread (10), it is able to achieve its seal while non-use of packing, in which the effective thread is a cone-shape pipe thread, at least two complete variation convex thread (11) is in f...
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WO/2009/123034A1 |
Provided is a method of manufacturing a screw joint product capable of increasing the life of an external cutting tool and also increasing the life of a chaser. The method including a step of threading a screw joint product after the ste...
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WO/2009/116178A1 |
A complete thread (26) is divided into a front thread (26a) with five or less thread pitches (P) for the thread of the pitch (P) and the remaining rear thread (26b). A predetermined back taper having a radial size gradually decreasing wi...
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WO/2009/074343A1 |
The invention relates to a screw tap, which a) can rotate about a rotational axis, and b) has a plurality of thread cutting teeth which each have a top cutting edge lying radially outward and which are aligned with respect to each other ...
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WO/2009/067441A1 |
A faceted bone screw and a method for manufacturing the same includes a screw thread configuration having facets that are substantially transverse to the thread. The facets are generally made up of a plurality of transitioning peaks and ...
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WO/2009/057192A1 |
Since as illustrated in a developed view of FIG.2, helical flutes (16a, 16c) is differentiated from the lead angle β of adjoining helical flutes (16b, 16d) around the axis center, the lead angle α of cutting edges (20a, 20c) provided a...
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WO/2009/057962A2 |
Provided are a tapping shank and a nut tapping apparatus using the tapping shank. The nut tapping apparatus in which nuts, to which nut tapping is not accomplished, are moved from a hopper of a base body, the nuts are supplied to a tap r...
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WO/2009/037094A1 |
The present invention relates to a thread cutter having a shaft (1) and a cutting part (2), wherein the cutting part (2) has a plurality of cutting studs (3, 3') each having at least one cutting tooth (4) and cutting teeth (4) of differe...
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WO/2009/034276A2 |
The assembly of the invention includes a rod (8) made of a plastic material and a metal nut (10) to be screwed onto the rod (8) by forming an outer threading on the rod (8) upon the first screwing operation, the nut (10) having an inner ...
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WO/2009/030210A1 |
The invention relates to a tool head (1), in particular for machines for producing threaded connections on pipe ends, which is intended to rotate about an axis of rotation (Z), comprising at least one first tool slide (2, 4), which is ra...
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WO/2009/022570A1 |
A method and device for thread cutting in which the lifetime at the edge portion of a cutting tool can be enhanced even when thread cutting is performed at high speed. A method for cutting threads in a pipe P by applying an edge portion ...
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WO/2009/022571A1 |
A method and a device for deburring the screw joint of a pipe while suppressing generation of spark or scattering of dust. A deburring device (100) according to the present invention is one for removing burr from a screw joint (PJ) forme...
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WO/2009/013783A1 |
A method for forming a spiral groove in the periphery surface of a column-shaped or cylindrical work (WK) by cutting. In a state in which the shaft center of a side cutter (19) whose blade body is provided on the periphery is inclined re...
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WO/2008/149464A1 |
[PROBLEMS] With respect to a tap covered with hard coating, to even in tapping machining of mild steel, etc., facilitate curling of chips so as to inhibit any entanglement thereof, thereby attaining not only enhancement of tool life dura...
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WO/2008/149465A1 |
[PROBLEMS] With respect to a tap covered with hard coating, to even in tapping machining of mild steel, etc., facilitate curling of chips while inhibiting any fusion adhesion to thereby inhibit any entanglement thereof and to stably real...
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WO/2008/150237A1 |
The invention relates to a cleaning device for the cleaning of a threaded part, comprising a first body portion (2) comprising at least one adjustable cutter (11, 12) and a second body portion (3) comprising at least one adjustable membe...
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WO/2008/139702A1 |
[PROBLEMS] To provide a ball screw, which can realize suppressed formation of an intergranular oxide layer upon heat treatment and can realize excellent durability, and a method for manufacturing the ball screw. [MEANS FOR SOLVING PROBLE...
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WO/2008/136123A1 |
Since a spiral flute (20) has a constant lead portion (20a) and a gradually increasing lead portion (20b) and the constant lead portion (20a) has an axial length in the range of 0.3ŒLA-1.2ŒLA including at least the leading part (22) en...
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WO/2008/136643A2 |
Disclosed is a method of fabricating a clamping nut, which can be performed with low costs because no loss occurs. A hollow-cylindrical half-finished work with a closed end is formed by drawing a metallic sheet, an inner hollow-cylindric...
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WO/2008/126344A1 |
Provided are a multi-thread rolling die manufacturing method for improving the durability of a fine thread working portion, a multi-thread rolling die, and a multi-thread bolt manufacturing method. The multi-thread rolling die comprises ...
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WO/2008/117936A1 |
A thread-forming tap is disclosed. The thread- form ing tap of the present invention includes a body (2), which has a thread-forming part thereon, and a shank (4), which is integrated with one end of the body and has a hexagonal cross-se...
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WO/2008/117108A1 |
A portable threading machine comprises a containing structure (3), a transmission shaft (4) housed partly in the containing structure (3), a threading head (5) fitted at one end of the shaft (4) for receiving motion from it, means (7) fo...
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WO/2008/117912A1 |
The present invention discloses a thread forming tap. The thread forming tap includes a blade part and a shank part. The blade part includes a thread forming part for forming internal threads. The shank part is integrally formed with one...
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WO/2008/111252A1 |
In an insert for thread cutting, a pair of cutting edge parts which project from the common edge parts of the front and rear surfaces of the insert body when viewed from the direction facing the front and rear surfaces are formed at the ...
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WO/2008/106638A1 |
A ratchet assembly, and particularly, a ratcheting manual threader drive device is described. The device utilizes a unique pawl extension assembly that includes a sleeve, and one or more biasing members that are positioned within a chann...
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WO/2008/105043A1 |
A tap holder which can absorb an error even if it occurs in synchronization between shaft feed and rotation of the tapper body and the tap collet of a tap holder corresponding to the spindle of a machine tool through a simple arrangement...
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WO/2008/102445A1 |
A tap in which, as shown in Fig. 2, the diameter Dd of a drilling edge (13) of a drill (12) is smaller than the root diameter d1 of a male thread (20) of a tap part (14), and the inner diameter D1 of a female thread (30) is determined by...
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WO/2008/097170A1 |
A cutting tool having multiple cutting edges includes a tool body having a longitudinal axis, a first cutting edge including a first leading edge that defines a first profile when rotated about the longitudinal axis, and a second cutting...
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WO/2008/088264A1 |
The invention relates to a rotatable multi-operation tool intended for hole making and other chip removing machining, comprising replaceable cutting inserts (2, 3, 4) of different types, a basic body (1) having a front end (6) from which...
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WO/2008/086787A2 |
The invention relates to an auxiliary device and a plurality of embodiments thereof that allow, in a simple manner and using constructionally simple parts, a manually driven or machine-driven thread-cutting machine to be converted to a b...
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WO/2008/075402A1 |
Since a chamfer (30) is provided at a chamfer height (Hmen) within a range of 15%-100% of the height of screw thread (Hneji) on the face of the cutting edge (26) at the shank side crest (24b) of a complete crest (24), chips can be pushed...
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WO/2008/068816A1 |
A tap that by forcibly suctioning and discharging of chips, attains not only prevention of environmental pollution but also simplification of cleaning operation. Tap (1) has air suction hole (5) provided with aperture (5a). Accordingly, ...
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WO/2008/053606A1 |
To provide a tap holder corresponding to the main shaft of a machine tool in which even if an error occurs in the synchronization of the axial feeding and the rotation of the tapper body and the tap collect, the error can be absorbed by ...
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WO/2008/053528A1 |
A tap holder that, even if there is an error in synchronization of shaft feeding and rotation between a tapper body and tap collet of a tap holder corresponding to the main spindle of a machine tool, can absorb the error by a simple stru...
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