Kobe Steel, Ltd.

Kabushiki Kaisha Kobe Seiko Sho

Katsuhiko Ozaki

Koichi Sakamoto

Eiji Takahashi

Kaname Araki

Hiroshi Yaguchi

Tomoko Sugimura

Masato Kannaka

Koyo Kegasa

Koichi Akazawa

Yuya Yamamoto

Goro Anan

Hiroyuki Kamura

The state measuring device includes a measurement section attached to the blade portion or to a vicinity of the blade portion to measure a state of the blade portion, an AD converter attached to the cutting tool to acquire a measurement value measured by the measurement section at a predetermined sampling rate and perform AD conversion on the measurement value, a transmission section which transmits, on each acquisition of the measurement value from the AD converter, the acquired measurement value using digital wireless communication, and a monitor device provided outside the cutting tool. The monitor device includes a reception section which receives the measurement value transmitted by the transmission section, and a data management section which causes a display section to display the measurement value and causes a storage section to store the measurement value on each reception of the measurement value by the reception section.

State measuring device and state measuring system

A shaving die for cutting the surface layer of a wire is provided with a circular cutting blade and a plurality of protrusions. The wire is inserted into the circular cutting blade so that the surface layer of the wire is cut. The protrusions are provided at positions around the cutting blade so as to come into contact with the surface layer of the wire that has been cut by the cutting blade.

Shaving tool

The rotation support bar () of a grinding tool () has a bendable hinge section () at the intermediate section thereof, and has a balancer () on the grinding stone tip () side. The hinge section () comprises two or more opposed pairs of grooves () which have circular arc-shaped bottom surfaces and which are provided in the outer peripheral surface of the rotation support bar () so as to extend in the direction perpendicular to the axial direction of the rotation support bar (). The grooves () are provided at equal angular intervals.

Grinding tool

The present invention provides a low-carbon resulfurized free machining steel product excellent in machinability typified by finished surface roughness even though toxic Pb or special elements such as Bi or Te are not added, and a suitable production method thereof. A steel product has a specific composition, has contents of Mn and S satisfying the following conditions: 0.40&#x2266;Mn*S&#x2266;1.2 and Mn/S&#x2267;3.0, and contains a ferrite-pearlite structure as the metallographic structure, in which the average width (&#x3bc;m) of sulfide inclusions in the steel product is 2.8*(log d) or more, wherein d (mm) is the diameter of the steel product, and pro-eutectoid ferrite in the metallographic structure has a hardness HV of 133 to 150 or a difference in deformation resistance at a strain of 0.3 between 200&#xb0; C. and 25&#xb0; C. is 110 MPa or more and 200 MPa or less, the deformation resistances being determined in a compression test at a deformation rate of 0.3 mm/min.

Low carbon composite free-cutting steel product excellent in roughness of finished surface and method for production thereof

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Kobe, Japan

Katsuhiko Ozaki