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JP6784717B2 |
A controller for a machine tool is configured to shred chips in thread cutting. The controller includes a processor that calculates an oscillation amplitude and an oscillation direction for shredding the chips from lathe-turning machinin...
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JP6766181B2 |
To provide a tool that ensures improved durability even when a diamond coating containing boron is formed.A diamond coating (40) includes a first layer (41) that is formed as a layer on a surface layer side of the diamond coating (40) an...
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JP2020157397A |
To provide a breakage prediction method of a tool which can improve breakage prediction accuracy of the tool.A breakage prediction method of a tool includes the steps of: generating a model waveform by preliminarily mechanically learning...
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JP6752154B2 |
A thread milling cutter having a main body which includes a shank and a cutting portion, which is cylindrical in its basic shape, an axis of rotation and a plurality of cutting teeth, which are spaced in the peripheral direction and whic...
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JP6750789B1 |
A cutting tool including a rake face, a flank surface, and a cutting edge portion, which includes a base material and an AlTiN layer, and the AlTiN layer is a cubic Al.xTi1-xThe AlTiN layer contains a crystal grain of N, the atomic ratio...
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JP2020131310A |
To provide a cutting tool with which effect of surface hardening treatment such as nitriding treatment remains at a rake surface after the rake surface is ground in the re-grinding of the cutting tool, and to provide a method for manufac...
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JP6748141B2 |
To provide a numerical controller for a machine tool capable of shredding chips efficiently along one path by making oscillating motion involving synchronization between multiple axes and intermittently making cutting-out motion and cutt...
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JP6742468B1 |
To provide a tap tool capable of performing tapping in a short time while maintaining the same accuracy as the conventional one. This is a tap tool having a rotating axis and machining a pilot hole into a screw hole in a state where the ...
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JP6743663B2 |
To provide a cemented carbide having high hardness and excellent deflection strength.A cemented carbide according to an embodiment has a hard phase, and a binder phase of 10 to 15 mass% when the hard phase is 100 mass%, with the balance ...
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JP2020116688A |
To efficiently and easily obtain a male screw member having a highly precise special screw that cannot be machined and formed only by thread whirling machining, while utilizing it in order to make use of a merit by the thread whirling ma...
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JP6734257B2 |
A multiple tool for a punching device, in particular for a turret punch press has a housing and a tool head interacting with the punching device. A thread cutter magazine including a plurality of thread cutters is connected to the tool h...
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JP6728551B2 |
A surface-coated cutting tool having a rake face and a flank face includes a base material and a coating formed on the base material. The base material is a cemented carbide or a cermet. The coating includes an aluminum oxide layer conta...
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JP6720816B2 |
To provide a manufacturing method of boron nitride polycrystalline having a fine structure and toughness.There is provided a manufacturing method of boron nitride polycrystalline including a first process for heat treating high pressure ...
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JP2020099942A |
To provide a machine tool which improves screw form rolling efficiency by a screw form rolling tool.A prescribed turret support section (shown as a cutter holder body 11) includes a rod-like member 60 which abuts on an operation section ...
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JP6713539B2 |
Provided is a thread forming tap that can suppress internal thread processing defects. A partial thread (33) is provided, in the axis (O) direction view, with a protrusion (33a) formed so as to protrude in the radial direction and a clea...
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JP6709163B2 |
To provide a machine tool that is capable of preventing a long, continuous chip from getting entangled with a workpiece or a cutting tool when a threading work is performed on the workpiece, and a control device of the machine tool. A ma...
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JP6699056B2 |
A surface-coated cutting tool includes a substrate and a coating that is disposed on the substrate and formed so as to cover at least a portion of a flank face, in which the coating includes an inner layer and an outer layer formed on th...
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JP6693264B2 |
To provide a ball screw which shortens a processing time for forming a screw groove at a screw shaft, and can reduce a time and labor of manufacturing, and a manufacturing method of the ball screw, in the ball screw in which a ball circu...
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JP6692932B2 |
Provided is a thread milling cutter with a long tool life. A plurality of threads projecting in directions perpendicular to the axis from a front end side of an outer circumference of the tool body(10) to form thread cutting edges(20a,24...
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JP6690102B2 |
A surface-coated cutting tool has a rake face and a flank face, and includes a base material and a coating formed on the base material. The base material has a cutting edge face connecting the rake face to the flank face, and an oxygen c...
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JP6676199B1 |
To provide a spacer and a method for manufacturing a spacer, which can be easily processed without using a special cutting tool and can be produced in a short time and at low cost. A spacer includes a main body portion and a male screw p...
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JP6670501B2 |
To provide a fastening member capable of firmly connecting a male screw member screwed into a female screw member at an arbitrary position, and preventing excessive increase of resistance in screwing.A fastening member 1 is a fastening m...
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JP6672332B2 |
Provided is a pipe-tapered-thread machining spiral tap that restrains occurrence of tearing and formation of cutting edge mark in the machined internal thread upon stop of rotation of the tap. The pipe-tapered-thread machining spiral tap...
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JP2020040196A |
To provide a tool holder adjustment system for changing a tool length without the need for detachment of a tool (a tap or a drill) from a tool holder.In a tool length adjustment system that enables a tool length to be adjusted without de...
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JP6667713B2 |
A surface-coated cutting tool includes a substrate and a coating formed on a surface of the substrate, the coating including one or two or more layers, at least one of the layers being an Al-rich layer including hard particles, the hard ...
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JP6661823B1 |
To provide a machine tool capable of improving a conventional machine tool and preventing the generation of long chips during thread cutting. A chuck means 6 for holding a workpiece, a tool holding means for holding a cutting tool 70, a ...
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JP6651051B2 |
A method for producing a threaded hole in a workpiece with a thread tapping tool bit, which, at its drill bit tip, has a main cutting edge and a thread profile that trails in a thread tapping direction with at least one thread cutting to...
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JP6651055B2 |
A tool for producing an internal thread in a workpiece pilot hole having a thread major diameter and a thread minor diameter, which tool has a thread-forming section, by which an internal thread profile can be produced in a pilot hole wa...
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JP2020015104A |
To provide a tap which suppresses wear of a cutting edge at a biting part as much as possible even if the number of thread processing increases, and reduce the burden of thread processing by a first cutting edge of a complete crest part....
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JP6635340B2 |
A surface-coated cutting tool includes a base material and a coating formed on the base material. The coating includes an ±-Al 2 O 3 layer. The ±-Al 2 O 3 layer contains a plurality of ±-Al 2 O 3 crystal grains and chlorine, and has a...
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JP2019217556A |
To perform screw cutting of a round bar without bending by a die handle to which a die is set.A guide plate, which perpendicularly guides a round bar to a screw hole, is fitted to a die front face part which is set to a die handle. The g...
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JP6625263B2 |
A method for producing a threaded bore in a workpiece with a tapping tool bit, which, at its drill bit tip, has a main cutting lip and a thread profile trailing in a tapping direction (I) with at least one thread cutting tooth, wherein, ...
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JP6604462B2 |
A tap 1 has a threaded portion 2 including a cutting blade 5 on an outer circumferential surface, a flute portion 3 that divides the threaded portion 2 in a circumferential direction, and a shank portion 4 formed continuously from the th...
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JP6603104B2 |
A main spindle controller of a machine tool varies a rotation speed of a main spindle that grips a workpiece to a varied maximum speed higher than a reference rotation speed set value as a set value of a reference rotation speed by a var...
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JP6597038B2 |
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JP2019529139A |
A thread forming tool (10) for forming a female thread in a workpiece, the thread forming tool is a shank (1) and a thread forming portion (1) that is rotatable around a common axis (50). 2) is provided, the axis extends in the longitudi...
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JP6589045B2 |
Provided is a taper thread-cutting spiral pipe tap for which the occurrence, in the female thread, of gouges and cutting edge marks when tap rotation is stopped is limited. The taper thread-cutting spiral pipe tap 10 has four helical gro...
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JP6579182B2 |
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JP6581497B2 |
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JP6573300B1 |
To provide a processing tool capable of accurate and stable minute expansion and contraction. A connecting portion (1a) is connected to an upper device and attached to an upper body (1) having a tubular portion (1b) and a tubular portion...
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JP2019149047A |
To provide a controller having a function of threading while cutting chips.A controller 10 for controlling a machine tool that performs threading on a workpiece by pressing and moving the tool against the rotating workpiece, according to...
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JP6568307B2 |
A whirling tool for machining a workpiece, having: three or a multiple of three cutting plates, wherein each of the cutting plates comprises at least one cutting edge; a cutting plate holder having a plurality of cutting plate receptacle...
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JP6560947B2 |
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JP6556186B2 |
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JP3222423U |
To provide a thread cutting aid for a tap capable of preventing camera shake. A semi-circular cutting portion from 3 mm to 8 mm is formed every 1 mm as a tap holding portion at equal intervals on the circumference along the circumference...
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JP6550661B2 |
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JP2019123026A |
To provide a tapping die that can elongate a service life of a tap.The tapping die comprises an external cylinder, a tap holder arranged to be movable along a shaft line direction of the external cylinder and rotatable around a shaft the...
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JP6548892B2 |
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JPWO2019016899A1 |
The numerical control device (1) is used to retract the tool (30) by the specified amount in the specified direction from the retract position, which is the position where the tool (30) starts retracting, in the rough machining of the th...
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JP6535922B2 |
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