A guard for a part to be shot-blasted and having an axis of revolution, the guard including: a cover and a chamber shaped for receiving the part to be shot-blasted; the chamber having at least one planar section with a shape matching at least one planar section of the cover; two side guards mounted on the part to be shot-blasted and having one degree of freedom relative to the chamber and the cover, wherein the cover, the chamber and the two side guards form a box for sealing the shot, the box including a window for projecting the shot, the surface of which matches a portion of a surface of the chamber.

The subject matter described herein relates to methods and systems for fast imprinting of nanometer scale features in a workpiece. According to one aspect, a system for producing nanometer scale features in a workpiece is disclosed. The system includes a die having a surface with at least one nanometer scale feature located thereon. A first actuator moves the die with respect to the workpiece such that the at least one nanometer scale feature impacts the workpiece and imprints a corresponding at least one nanometer scale feature in the workpiece.

Apparatus configured to deform a tubular work piece having a longitudinal axis, the apparatus comprising a support for supporting a tubular work piece to be deformed; rotation means for rotating the tubular work piece about its longitudinal axis; a nozzle for directing a stream of pressurized fluid at the tubular work piece in a direction transverse to the longitudinal axis of the tubular work piece; and means for moving one or both of the tubular work piece and the nozzle relative to one another such that the stream of pressurized fluid can be aimed at a plurality of locations along the tubular work piece; wherein the pressure of the fluid directed at the tubular work piece is great enough to cause deformation of the tubular work piece, but not so great that cutting of the tubular work piece can occur.

A vibropeening apparatus comprises a main frame, an enclosure receivable within the main frame, a rotary drive mechanism, and an article to be vibropeened. The enclosure defines an internal volume, the internal volume accommodating a vibropeening bed. The article is positioned within the internal volume, and the rotary drive mechanism is to configured to impart a rotary motion to the enclosure within the main frame.

A vibropeening apparatus comprises a main frame, an enclosure receivable within the main frame, a rotary drive mechanism, and an article to be vibropeened. The enclosure defines an internal volume, the internal volume accommodating a vibropeening bed. The article is positioned within the internal volume, and the rotary drive mechanism is to configured to impart a rotary motion to the enclosure within the main frame.

An apparatus for treating an interior surface of a workpiece comprising at least three nozzles ejecting treating material, with a first one and a second one ejecting the treating material substantially along first and second collinear lines. A third one of the nozzles ejects the treating material substantially along a third line substantially perpendicular to the first and second lines. The treating material ejected from the first one intersects with the treating material ejected from the second one at a first intersection area to radially deflect to form a first radial spray. The treating material ejected from the third one intersects with the first radial spray at a second intersection area to form a second radial spray of treating material. The interior surface of the workpiece adjacent the second intersection area is treated with the treating material of the second radial spray.

The subject matter described herein relates to methods and systems for fast imprinting of nanometer scale features in a workpiece. According to one aspect, a system for producing nanometer scale features in a workpiece is disclosed. The system includes a die having a surface with at least one nanometer scale feature located thereon. A first actuator moves the die with respect to the workpiece such that the at least one nanometer scale feature impacts the workpiece and imprints a corresponding at least one nanometer scale feature in the workpiece.

Disclosed are texture hammers and related methods for using the texture hammers to create textures on metallic materials without distorting the material. Such hammers may comprise having a handle and a hammer head with a first end and a second end. The first end may have an oval, square, inverted triangle, triangle, or any other shape, and may comprise indentations on the surface to create a texture. The second end may have a rectangular, triangle, or any other shape, and may also comprise indentations complementary to the indentations on the first end. The texture hammers may be used to create different textures by varying the angle the hammer strikes the material, dragging the hammer head across the surface of the material, or creating a texture border on the material.

Disclosed are texture hammers and related methods for using the texture hammers to create textures on metallic materials without distorting the material. Such hammers may comprise having a handle and a hammer head with a first end and a second end. The first end may have an oval, square, inverted triangle, triangle, or any other shape, and may comprise indentations on the surface to create a texture. The second end may have a rectangular, triangle, or any other shape, and may also comprise indentations complementary to the indentations on the first end. The texture hammers may be used to create different textures by varying the angle the hammer strikes the material, dragging the hammer head across the surface of the material, or creating a texture border on the material.

A method and a device for strengthening the surface of workpieces, in particular of metal ones, by mechanical effects accompanying the impact of small projectiles or by mechanical effects accompanied by the impact of a shockwave induced by plasma created by electric evaporation of a metal foil are described.