The method can include obtaining a digital image of a wood board having a defect, the digital image including a representation of the defect; using a computer: mapping the position and shape of the representation of the defect, and generating blasting instructions based on the mapped position and shape; positioning the wood board in a given position in a cleaning station, the cleaning station having a blasting nozzle and holding the wood board in its coordinate system; and the cleaning station automatically moving the blasting nozzle relative to the wood board and blasting the defect based on the blasting instructions, including moving at least one of the blasting nozzle and the wood board relative to a frame of the cleaning station.

An insert apparatus for protecting a curved inner surface within a passageway from abrasion during an abrasive machining operation is disclosed. In various embodiments, the insert apparatus includes a shield having a shell shaped to match a curved portion of the curved inner surface of the passageway and a shaft having a first end connected to the shell and a second end connected to a member configured to maintain the shaft within the passageway and the shell positioned against the curved inner surface during the abrasive machining operation.

A method of smoothing an inner surface of a tubular wall of a workpiece is disclosed, including immersing the workpiece in a mixture of a liquid and an abrasive and inserting a cavitation peening nozzle into a cavity of the workpiece. The method further includes injecting a cavitating jet from the cavitation peening nozzle into the cavity.

Water-jet cleaning system and a method of cleaning a heat exchanger. The equipment includes a rotary tool having a lance with at least two degrees of freedom. The lance's movements relative to openings defined in the heat exchanger face plate are controlled via a smart indexing controller. The controller includes an electronic communication device that is specifically programmed to selectively activate various components of the rotary tool and a water delivery system. The programming utilizes an observed, learned, or uploaded pattern of the heat exchanger tube openings to selectively rotate the lance relative to the rotary tool's mounting assembly or linearly move the lance towards or away from the mounting assembly. The controller moves the lance to align a nozzle thereon with a selected opening in the face plate and then delivers a high pressure water jet therethrough.

A system and method for cleaning of heat exchanger tubes including an assembly, an indexer, and a communication device provided with specialized software and programming. The indexer includes orthogonally arranged first and second arms. A trolley and sensors are provided on the indexer arms. One or more lances are provided on the trolley to deliver water jets into the openings. Sensors measure displacement as the trolley is moved relative to the heat exchanger's face plate. An operator controls the system from a distance away using the communication device. During setup, the pattern of the face plate is learned and mapped utilizing information from the sensors as one of the inputs. This information is utilized to help navigate the face plate during a subsequent cleaning operation. A kit for retrofitting existing X-Y indexers is also disclosed.

A system, apparatus and method of cleaning tubes of a heat exchanger or a tube bundle that includes disengaging the heat exchanger or bundle from a use-position in a process or a plant; moving the heat exchanger or bundle to a cleaning station remote from the use-position; positioning the heat exchanger or tube bundle in front of a cleaning apparatus; providing water jet cleaning equipment on the cleaning apparatus; responding to programming in a computing device and controlling the water jet cleaning equipment and a cleaning operation; providing a pattern of tube openings defined in an end plate of the heat exchanger or bundle to the computing device; actuating the water jet cleaning equipment with the computing device; and manually or automatically performing a cleaning operation with the water jet cleaning equipment under control of the programming of the computing device and by following the provided pattern of tube openings.

A shot processing device according to an aspect includes: a guide portion provided in a conveyance direction of a workpiece; a rotation mechanism which includes a first endless belt providing a placement surface having the workpiece placed thereon and a first drive unit driving the first endless belt so that the placement surface moves in a direction opposite to the conveyance direction; a conveyance mechanism which pushes the workpiece toward the conveyance direction so that the workpiece on the placement surface rolls and moves in the conveyance direction along the guide portion; and at least one projector which projects shot media to the workpiece rolling and moving on the placement surface.

Essential constructive elements of the currently known machines and devices, which work by means of vacuum blasting, are improved in the surface cleaning and engraving machine that operates via a vacuum jet process in order to enable more effective cleaning of different surfaces, further applications and simplification of the handling of the machine or device. With the modifications and additions made, the application options of the machine or device are increased, the potential of clogging the suction hose is reduced to a minimum, the service life of the machine is extended and the efficiency and operating options of the blasting hood are improved. For this purpose, technical and design details of an already known machine are supplemented and improved; there are, for instance, a metering device (3), additions to the blasting hood (6) and measures to extend the service life of the machine by using rock impact films (31).

Essential constructive elements of the currently known machines and devices, which work by means of vacuum blasting, are improved in the surface cleaning and engraving machine that operates via a vacuum jet process in order to enable more effective cleaning of different surfaces, further applications and simplification of the handling of the machine or device. With the modifications and additions made, the application options of the machine or device are increased, the potential of clogging the suction hose is reduced to a minimum, the service life of the machine is extended and the efficiency and operating options of the blasting hood are improved. For this purpose, technical and design details of an already known machine are supplemented and improved; there are, for instance, a metering device (3), additions to the blasting hood (6) and measures to extend the service life of the machine by using rock impact films (31).

A method of making a printed circuit board includes a step of providing a double-sided plate that is an insulating substrate having conductive layers on respective surfaces thereof, a first coating step of coating a first surface of the double-sided plate with a first photosensitive resin film, a second coating step of coating a second surface of the double-sided plate with a second photosensitive resin film, a first exposure step of exposing the photosensitive resin film coating the first surface after the first and second coating steps, and a second exposure step of exposing the photosensitive resin film coating the second surface after the first exposure step, wherein a maximum depth of a depression in an outermost surface of the second photosensitive resin film used in the second exposure step is less than 1.0 μm.