Mitsubishi Materials Corporation

Mitsubishi Kinzoku Kabushiki Kaisha

Nissan Motor Company Limited

Tomoyoshi Sakamoto

Hiroshi Shimomura

Seiichi Abe

Yoshitaka Shiratori

Kazuhiko Takashima

Touru Narita

A cutting edge configuration of a cutting tool for performing a cutting process on a surface () of a workpiece (), the cutting tool including a rake face () provided with first and second cutting edges (), the cutting tool being moved relative to the surface-to-be-cut () with the first and second cutting edges () cutting thereinto to thereby perform the cutting process, wherein the first cutting edge () is positioned ahead of the second cutting edge () in a cutting direction (z-direction) of the cutting tool to provide the rake face () with a feed-direction (y-direction) rake-angle, and the cutting tool is fed in a direction from a side of the second cutting edge () to a side of the first cutting edge ().

Cutting edge configuration of cutting tool

This insert type cutting instrument includes: an insert formed as a flat polygonal plate, and an instrument main body having a first through-hole and a second through-hole are formed in the insert. The insert is mounted on the seat so that the center of the first screw hole is located closer to the axis than the center of the first through-hole and is located closer to a base end of the body than the center of the first through-hole, and the center of the second screw hole is located closer to the axis than the center of a second through-hole and is located closer to the base end of the body than the center of the second through-hole. Each of the first screw hole and the second screw hole is formed to be orthogonal to an attachment surface of the insert seat.

Insert type cutting instrument and insert, method for attaching insert to insert main body

In the tool for bore diameter work of the present invention, first and second insert restraining faces are provided opposite each other on a insert installation section, and have projecting V-shapes parallel to the longitudinal direction of a shank. The top and bottom faces of the insert have indented V-shapes in correspondence with the first and second insert restraining faces. When a clamp bolt is tightened, the first insert restraining face elastically changes shape toward the second insert restraining face, pressingly securing the insert in the shank. Therefore, the insert can be easily attached and removed, and high installation rigidity of the insert can be maintained.

Tool for bore diameter work

An apparatus for collecting wafers sliced from a semiconductor crystal rod, and the apparatus includes a primary mobile member, a secondary mobile member and a wafer collecting assembly. The primary mobile member is movable toward and away the crystal rod, and the secondary mobile member is mounted on the primary mobile means and is movable relative to the primary mobile member in a direction toward and away from the semiconductor crystal rod. The wafer collecting assembly is mounted on the second mobile member for collecting the wafers sliced from the semiconductor crystal rod.

Apparatus for collecting wafers

An apparatus for collecting wafers sliced from a semiconductor crystal rod, and the apparatus includes a primary mobile member, a secondary mobile member and a wafer collection assembly. The primary mobile member is movable toward and away from the crystal rod, and the secondary mobile member is mounted on the primary mobile member and is movable relative to the primary mobile member in a direction toward and away from the semiconductor crystal rod. The wafer collecting assembly is mounted on the second mobile member for collecting the wafers sliced from the semiconductor crystal rod.

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Abiko, Japan

Tomoyoshi Sakamoto