Abstract: A broaching apparatus (200, 400) includes; a broach (300, 600) having a cross-section corresponding to a geometry of slot (115) between adjacent steeples (110) of a turbine rotor (100), and a mechanism (210, 220, 230, 410, 420, 430) which moves the broach (300,600) through the slot (115) in a direction substantially parallel to a direction of extension of the slot (115).

Abstract: A broaching apparatus (200, 400) includes; a broach (300, 600) having a cross-section corresponding to a geometry of slot (115) between adjacent steeples (110) of a turbine rotor (100), and a mechanism (210, 220, 230, 410, 420, 430) which moves the broach (300,600) through the slot (115) in a direction substantially parallel to a direction of extension of the slot (115).

Abstract: A portable, mechanically operated, key-duplicating machine that relies on a punch-cutting system that selectively punches out the particular notches or “bittings” of a key blank in response to the details of an adjacent and aligned master key. The duplicating machine comprises a frame having cutting end and an alignment end. The frame defines a longitudinal axis. A carriage is movable along the longitudinal axis and includes a transverse axis. A key clamping assembly has a first key clamp for holding the key blank and a second key clamp for holding the master key. The key assembly is selectively slidable along the transverse axis. A cutting assembly is located at the cutting end and includes a punch-type cutter pin that is adapted to selectively cut pre-shaped notches from the held key blank. The cutter pin includes a guide section that aligns with the notch-profile of the held master key.

Abstract: An inside broaching machine having an upper pressure cylinder and a lower drawing cylinder that can be displaced in a machine rack. A machine table with receiving means, receives work pieces in parallel, and the broaching tools extending through the machine table each can be locked on the pressure carriage and the drawing carriage in tool holders. The machine exerts pressure and tensile force in the course of the broaching operation. The broaching tools are held clamped on the pressure carriage and the drawing carriage in radially clamping tool holders through the broaching operation. The two carriages are coupled in a force-locked manner.

Abstract: A shaping machine wherein either a work or a tool is a rod-like member extending along a straight center line while the other is a member having a hole capable of being fitted on the rod-like member and wherein the work is shaped while the member having the hole passes through the rod-like member from one end toward the other end of the rod-like member. The shaping machine comprises a feed mechanism for causing relative movement of the rod-like member and the member having the hole to each other along the center line of the rod-like member, a center line of the feed mechanism being coincident with the center line of the rod-like member.

Abstract: A broaching device and method for enlarging an opening, hollow or cavity in a workpiece comprises a broaching tool which is mounted on, or formed on, either the shaft or the nut of a ballscrew drive unit which includes a ballscrew shaft and a ballscrew nut.