An abrasive flow machining process for a meridionally divided turbine housing for a turbocharger employs a fixture installed in the axial bore of the housing to force the abrasive medium to flow substantially 360° about the circumference of the volute, and to shield the portion of the divider of the turbine housing volute located proximate the turbine housing inlet.

A method of processing a surface in additive manufacturing includes assembling a structure for a component by additive manufacturing out of a bed of a powdery base material, such that the structure is provided with an internal surface and a powdery base material covers at least a part of the internal surface, and actuating the base material relatively to the structure such that the internal surface is mechanically processed by the base material.

A device and system are disclosed to clean the interior of tubes in air-cooled heat exchangers. The device is attached at each end of a tube by electromagnetism; either directly to a ferromagnetic tube header, or to a ferromagnetic plate secured to a non-ferromagnetic plug-type header or to a plate-type header of any metal. High pressure air with entrained dry finely-divided abrasive is conducted through a nozzle supported by the device. At the other end of the tube, another device supports a nozzle that captures the air, spent abrasive, and removed material. Spent abrasive and removed material are separated by filtration from the air before the air is exhausted to the environment. Tubes are cleaned to a bright metal condition, suitable for inspection or application of a corrosion-resistant coating, or to a lesser level of cleanliness appropriate for return to service.

For the shot peening of a pipe inner wall of a curved workpiece (200) having a workpiece bore (201), use is made of a flexible blasting abrasive feed hose (10) having blasting nozzle head (20). The latter is guided through a supporting element (30) which is applied to one workpiece end (203). The blasting abrasive feed hose (10) together with the blasting nozzle head (20) is introduced into the workpiece bore (201) and advanced along a blasting treatment section therein, and subsequently retracted into the supporting element (30) again. The blasting abrasive is emitted during the advancing movement and/or during the retraction movement. A blasting nozzle unit (100) suitable for carrying out the method comprises a flexible blasting abrasive feed hose (10) and a blasting nozzle head (20) connected to the blasting abrasive feed hose (10). The blasting nozzle head (20) has a plurality of nozzle openings (21) distributed around the circumference. The outer circumference of the blasting nozzle head (21) is smaller than the inside diameter of the workpiece bore (201) in a workpiece (200) to be processed. The blasting abrasive feed hose (10) is guided in a supporting element (30) and this element (30) is guided in a displaceable manner in a stationary bearing element (40).

A cutting head assembly uses multiple cutting heads directing ultra-high pressure fluid in different directions towards an inner surface of a pipe to be cut in order to complete a full cut of the pipe while rotating or revolving the multiple cutting heads less than 360 degrees relative to central axis. The ultra-high pressure fluid mixes with abrasive inside fittings on or near each of the nozzles to further assist with cutting through the pipe. Some cutting head assemblies have two nozzles, while other cutting head assemblies have three or four nozzles.

An engine valve cleaning system is disclosed. The system includes a first tube configured to deliver pressurized air, a second tube configured couple to an abrasive media source and draw an abrasive media therefrom, and a spray applicator. The spray applicator includes a first passageway coupled to the first tube and configured to deliver pressurized air, and a second passageway coupled to the second tube and configured to deliver the abrasive media. The first passageway intersects the second passageway such that a passing of the pressurized air past the second passageway draws the abrasive media from the abrasive media source without the necessary for an external vacuum. A third passageway is downstream of the first and second passageways and configured to output the pressurized air and abrasive media to an engine.

An engine valve cleaning system is disclosed. The system includes a first tube configured to deliver pressurized air, a second tube configured couple to an abrasive media source and draw an abrasive media therefrom, and a spray applicator. The spray applicator includes a first passageway coupled to the first tube and configured to deliver pressurized air, and a second passageway coupled to the second tube and configured to deliver the abrasive media. The first passageway intersects the second passageway such that a passing of the pressurized air past the second passageway draws the abrasive media from the abrasive media source without the necessary for an external vacuum. A third passageway is downstream of the first and second passageways and configured to output the pressurized air and abrasive media to an engine.

A shot treatment apparatus ejects shot material from a nozzle towards a workpiece, and has the nozzle; a nozzle moving mechanism; and a three-dimensional information obtaining sensor; a pattern storage portion storing a nozzle reference operation pattern when the workpiece is installed at a reference position and a reference pose within the treatment compartment; a model data storage portion storing workpiece three-dimensional model data; a position/pose displacement calculating portion comparing the position and pose information and reference position and pose data when the three-dimensional model data is at the reference position in the reference pose to calculate a displacement in a position and pose of the workpiece from the reference position and pose data; and a nozzle movement control portion correcting the pattern based on the displacement in the position and pose, and controlling the nozzle moving mechanism to move the nozzle based on the corrected pattern.

A cutting head assembly uses multiple cutting heads directing ultra-high pressure fluid in different directions towards an inner surface of a pipe to be cut in order to complete a full cut of the pipe while rotating or revolving the multiple cutting heads less than 360 degrees relative to central axis. The ultra-high pressure fluid mixes with abrasive inside fittings on or near each of the nozzles to further assist with cutting through the pipe. Some cutting head assemblies have two nozzles, while other cutting head assemblies have three or four nozzles.

Method for cleaning a vulcanization mould for tyres in a curing press, using a device (1) comprising a collaborative mobile robot (10), incorporating a computer program, said robot comprising an autonomous mobile platform (2) mounted on drive wheels and comprising batteries supplying electricity, a dry ice dispenser (6), sensors for identifying the location of the mould to be cleaned and motors ensuring its displacement between a storage location of the device and the mould to be cleaned and the displacement of an articulated mobile arm (3) of said robot, said robot bearing a nozzle (4) for spraying dry ice from said dispenser, wherein the device comprises means for communication with a control unit.

According to the invention, the control unit sends a mission instruction to said device, which navigates between a storage location and the location of the mould and automatically cleans the vulcanization mould.