Dmg Mori Company Limited

Dmg Mori Seiki Co., Ltd.

Sumitomo Electric Hardmetal Corp.

Fuji Jukogyo Kabushiki Kaisha

Sumitomo Electric Industries, Limited

Subaru Corporation

Mori Seiki Co., Ltd.

Mitsubishi Hitachi Tool Engineering, Ltd.

Mori Seki Co., Ltd.

Morihiro Hideta

Koji Sato

Shinya Matsuo

Tatsuo Nakahata

Junya Okida

Shizuo Nishikawa

Hisayuki Oode

Shinya Ikenaga

Kengo Kawai

Koji Iiyama

Masataka Sakamoto

Yasuhiro Inamasu

Manabu Saito

Katsuhiko Ono

Daisuke Murakami

Shigenori Emoto

Kazuo Noguchi

Kazuo Maeda

Yohei Oda

Shoujirou Touma

Hideo Mori

Kazuya Ishikawa

Suehiro Ikeda

Takayuki Hirokawa

Yoshio Ohara

Hisayuki Oide

A machining condition determining apparatus () includes a first setter () setting a cutting speed of a cutting tool, a storage () storing a maximum output value of a drive motor rotating a spindle holding the cutting tool and a number of revolutions of the drive motor corresponding to the maximum output value, a number-of-revolutions determiner () obtaining a steady-state value of the maximum output value of the drive motor stored in the storage () and determining a number of revolutions of the drive motor corresponding to the obtained steady-state value of the maximum output value, and a tool-diameter determiner () calculating a tool diameter of the cutting tool based on the cutting speed set by the first setter () and the number of revolutions of the drive motor determined by the number-of-revolutions determiner ().

Machining condition-determining device and cutting tool selection apparatus

A rotary cutting tool insert according to one embodiment of the present invention includes: an annular rake face provided with at least one recess portion; and a cutting edge formed at an outer circumference of the rake face, the recess portion having a width of more than or equal to 1.2 mm and less than or equal to 3.0 mm in a circumferential direction of the rake face, a distance between the cutting edge and an end of the recess portion at the outer circumference side of the rake face being more than or equal to 0.1 mm and less than or equal to 0.5 mm. According to the rotary cutting tool insert according to the one embodiment of the present invention, roughness of a processed surface and vibration due to a cutting process can be prevented.

Rotary cutting tool

A machining status display apparatus includes a display device having a display screen, a stability lobe picture creator creating, based on specifications of a tool to be used, display picture data for displaying a stability lobe as a correlation diagram between a spindle rotation speed and a limit depth of cut of the tool above which regenerative chatter occurs, a first machining information picture creator creating display picture data for displaying machining related information other than regenerative chatter corresponding to set machining conditions, and a display controller displaying the stability lobe and the machining related information with the stability lobe and the machining related information superimposed one on another on the display screen of the display device based on the display picture data created by the stability lobe picture creator and the display picture data created by the first machining information picture creator.

Machining status display apparatus

A cutting tool cover set to a cutting tool which includes a hollow shaft body and at least one insert attached to an end face of the shaft body and cuts by bringing the insert into contact with a work while rotating the shaft body. The cutting tool cover includes: a body portion fixed to a top end portion of the shaft body; and an extension portion extended outward from the circumferential edge of the body portion in the entire circumference of the top end portion of the body portion to cover the surface of the work.

Cover for cutting tool, holder for cutting, and cutting device

A cutting insert is configured to include: a first portion having a rake face, a flank face, a cutting edge, and a face facing an insert attachment portion at an end of a tool main body; and a second portion having a side surface including at least one flat plane that is parallel to a center line of a tool or inclined at a prescribed angle to the center line. The second portion extends continuously to a region surrounded by the face of the first portion. The second portion is fitted into the tool main body to position the cutting insert and to prevent the cutting insert from rotating.

Lathe turning tool

A connection portion between a holder side part of a chip suction path and a main body side part of the chip suction pathis formed to have a non-contact structure, resulting in that not only a chip generated at a machining point but also a chip remained so as to be suspended in a machining atmosphere can be sucked and discharged.

Tool holder for chip suction device and machine tool including the same

An attachment for dust collection for cutting machining includes a rotation mechanism and a dust collection enclosure for enclosing at least part of a tool. The dust collection enclosure is rotatably configured by being fixed to the rotation mechanism. A gap for checking a machining state is provided in the dust collection enclosure.

Attachment for dust collection for cutting machining, dust collecting duct for machine tools, tool holder for machine tools, and machine tool

A tool of a machine tool includes a tool bodyin which there are formed: first suction holesopened near cutting edgesand extending toward an axis P of a shaft portion; and a second suction holeto which the first suction holesjoin and which extends in an axial direction of a spindleand communicates with a chip discharge holeof the spindle

Tool of machine tool

A tool has a shank and a cutting blade mounted on the shank. The tool also includes an internal fluid passage for drawing in, together with air, chips produced when the cutting blade machines a workpiece. The internal fluid passage comprises a through hole made in the shank, at least one main inlet hole for drawing in the chips together with the air, the main inlet hole being made in the cutting blade and being in fluid communication with the through hole, and at least one sub-inlet hole for drawing in at least the air, the sub-inlet hole being made in the shank and being in fluid communication with the through hole. The chips can efficiently be discharged from the tool without being deposited in the internal fluid passage, by the air which flows at a suitable speed through the internal fluid passage and draws the chips, regardless of the diameter of the tool.

Tool with internal fluid passage

A cylindrical rotating tool comprises a major diameter portion having formed therein an internal fluid passage, a minor diameter portion provided in front of the major diameter portion, and a tip attached to the front of the minor diameter portion. When seen from behind the central axis line, an inner circumference of an outlet of the internal fluid passage intersects with an outer circumference of the minor diameter portion. At the site of the outlet, a notch is formed on an outer circumferential surface of the minor diameter portion. An inclined portion of the notch is formed obliquely so that the distance from the central axis line to the inclined portion on further forward of the minor diameter portion becomes larger than the distance from the central axis line to the inclined portion on a closest position on the entire circumference of the outlet to the central axis line. The inclined portion guides a partial flow of the coolant, gushing forward from the outlet, outward in a radial direction of the minor diameter portion. Accordingly, the coolant ejected forward from the outlet flows over the outer circumferential surface of the tool, spreading like a curved fan without diffusing outward in the radial direction, and is supplied to the tip, whereby the outer circumferential surface of the tool and the tip are cooled.

Cylindrical rotating tool with internal fluid passage and machining method using the same

Growing community of inventors

Nara, Japan

Morihiro Hideta