A device (20) for root-rolling a thread (T) on an object (O) includes: a body (21), an accumulator piston (24) mounted for sealed sliding movement within a body passageway (22), a coarse adjustment screw (25) threaded onto the body, a Belleville spring stack (26) compressed between the coarse adjustment screw and the accumulator piston, an actuator piston (28A or 28B) mounted for sealed sliding movement within a cylindrical opening (23) in the body, and a thread roll (32) rotatably mounted on the actuator piston. A fine adjustment screw is threaded (33) into a first opening (34) on the body, and communicates with a fluid chamber between the accumulator and actuator pistons. The positions of the coarse and fine adjustment screws may be selectively adjusted to controllably vary the fluid pressure within the chamber. The device may be mounted on a machine tool (35) and selectively moved toward the object to root-roll a thread on the object when the object and device are rotated relative to one another.

A device (20) for root-rolling a thread (T) on an object (O) includes: a body (21), an accumulator piston (24) mounted for sealed sliding movement within a body passageway (22), a coarse adjustment screw (25) threaded onto the body, a Belleville spring stack (26) compressed between the coarse adjustment screw and the accumulator piston, an actuator piston (28A or 28B) mounted for sealed sliding movement within a cylindrical opening (23) in the body, and a thread roll (32) rotatably mounted on the actuator piston. A fine adjustment screw is threaded (33) into a first opening (34) on the body, and communicates with a fluid chamber between the accumulator and actuator pistons. The positions of the coarse and fine adjustment screws may be selectively adjusted to controllably vary the fluid pressure within the chamber. The device may be mounted on a machine tool (35) and selectively moved toward the object to root-roll a thread on the object when the object and device are rotated relative to one another.

A tool head includes a first tool and a second tool disposed circumferentially on the tool head where the tool head has a rotation axis. The first tool of the tool head is an adjustable tool that is radially movable such that a radial position, relative to the second tool of the tool head, is settable.

A tool head includes a first tool and a second tool disposed circumferentially on the tool head where the tool head has a rotation axis. The first tool of the tool head is an adjustable tool that is radially movable such that a radial position, relative to the second tool of the tool head, is settable.

A system for mechanical surface treating a component includes a tool and a manipulator. The tool includes a roller support, a spherical roller and a biasing device. The roller support includes an endwall, a port and an internal cavity. The roller support extends longitudinally along a longitudinal axis to the endwall. The port extends from the internal cavity through the endwall. The spherical roller is nested in the port with an exposed portion of the spherical roller projecting out of the roller support from the port. The exposed portion of the spherical roller is configured to contact a surface of the component. The biasing device is disposed in the internal cavity and biases the spherical roller against the endwall. The manipulator may move the tool along the surface of the component. The manipulator may apply a static pressure load against the surface of the component through the spherical roller.

A system for mechanical surface treating a component includes a tool and a manipulator. The tool includes a roller support, a spherical roller and a biasing device. The roller support includes an endwall, a port and an internal cavity. The roller support extends longitudinally along a longitudinal axis to the endwall. The port extends from the internal cavity through the endwall. The spherical roller is nested in the port with an exposed portion of the spherical roller projecting out of the roller support from the port. The exposed portion of the spherical roller is configured to contact a surface of the component. The biasing device is disposed in the internal cavity and biases the spherical roller against the endwall. The manipulator may move the tool along the surface of the component. The manipulator may apply a static pressure load against the surface of the component through the spherical roller.

A segmented mandrel for cold working having two forward segments and two rear segments positioned between the two forward segments, when fitted together have an approximately circular outline. The two forward segments and the two rear segments are movable separately and together.

Tread members for climbing products are described herein that have indented treads that may provide enhanced grip and/or improved slip resistance. The treads are formed on a standing or other engagement surface of the tread member. In some approaches, the treads may be incorporated into an upper surface of a rung, step, platform, or plank of the climbing product. The treads include a plurality of pips or ridges extending across the tread member in a first direction. The first direction may be an extrusion direction or a lateral direction. The pips or ridges may provide slip resistance in a direction perpendicular to the first direction. The pips or ridges further have a plurality of indentations or cuts formed therein at an angle of about 5 degrees up to about 90 degrees relative to the first direction. So oriented, the indentations may provide slip resistance in additional directions.

Tread members for climbing products are described herein that have indented treads that may provide enhanced grip and/or improved slip resistance. The treads are formed on a standing or other engagement surface of the tread member. In some approaches, the treads may be incorporated into an upper surface of a rung, step, platform, or plank of the climbing product. The treads include a plurality of pips or ridges extending across the tread member in a first direction. The first direction may be an extrusion direction or a lateral direction. The pips or ridges may provide slip resistance in a direction perpendicular to the first direction. The pips or ridges further have a plurality of indentations or cuts formed therein at an angle of about 5 degrees up to about 90 degrees relative to the first direction. So oriented, the indentations may provide slip resistance in additional directions.

In a die-casting machine with toggle-joint or without toggle-joint, a threaded section or a shaped section of horizontal columns is made by first carrying out turning and then rolling.