An example system for fabricating an infiltrated downhole tool includes a mold assembly having one or more component parts and defining an infiltration chamber to receive and contain matrix reinforcement materials and a binder material used to form the infiltrated downhole tool. One or more thermal conduits are positioned within the one or more component parts for circulating a thermal fluid through at least one of the one or more component parts and thereby placing the thermal fluid in thermal communication with the infiltration chamber.

A mold transfer assembly includes a transfer housing providing an interior defined by one or more sidewalls and a top. The transfer housing is sized to receive and encapsulate a mold as the mold is moved between a furnace and a thermal heat sink. An arm is coupled to the transfer housing to move the transfer housing and the mold encapsulated within the transfer housing between the furnace and a thermal heat sink. The transfer housing exhibits one or more thermal properties to control a thermal profile of the mold.

A mold transfer assembly includes a transfer housing providing an interior defined by one or more sidewalls and a top. The transfer housing is sized to receive and encapsulate a mold as the mold is moved between a furnace and a thermal heat sink. An arm is coupled to the transfer housing to move the transfer housing and the mold encapsulated within the transfer housing between the furnace and a thermal heat sink. The transfer housing exhibits one or more thermal properties to control a thermal profile of the mold.

Dies for forming components, such as sheet components, and methods of producing the dies are disclosed. The die may include a bulk material and a forming surface. A solid conductor may be formed in the bulk material. The solid conductor may be spaced from and extend adjacent to the forming surface and have a melting point that is greater than a melting point of the bulk material. The solid conductor may be configured to absorb heat from the forming surface. There may multiple solid conductors within the bulk material, for example spaced apart and extending along an axis. The solid conductor may be a bundle of carbon fibers, which may be pitch-based. The solid conductor may be conformal to the forming surface, for example, having a constant spacing therefrom. The solid conductor may be cast-in to the die during its production.

Dies for forming components, such as sheet components, and methods of producing the dies are disclosed. The die may include a bulk material and a forming surface. A solid conductor may be formed in the bulk material. The solid conductor may be spaced from and extend adjacent to the forming surface and have a melting point that is greater than a melting point of the bulk material. The solid conductor may be configured to absorb heat from the forming surface. There may multiple solid conductors within the bulk material, for example spaced apart and extending along an axis. The solid conductor may be a bundle of carbon fibers, which may be pitch-based. The solid conductor may be conformal to the forming surface, for example, having a constant spacing therefrom. The solid conductor may be cast-in to the die during its production.

The invention relates to a device (2) for welding hard material elements (4) onto teeth (6) of a saw blade (8), comprising a saw blade feed device (12) for moving the saw blade (8) in a feed direction (14), such that a tooth (6a) of the saw blade (8) can be brought into a target position (16) in a working region (10) of the device (2), comprising a first centering device (30) for centering the saw blade (8) transversely to the feed direction (14), comprising a second centering device (32) for centering a respective hard material element (4) transversely to the feed direction (14), comprising a resistance welding device (24) having a welding electrode (26) that can be deployed into and withdrawn from the working region (10), comprising a supply device (28) for supplying and transferring a respective hard material element (4) to the welding electrode (26), and it being possible for the welding electrode (26) to be deployed in such a way that the hard material element (4) can be brought toward the tooth (6a) to abut the tooth (6a). According to the invention, the hard material element (4) can be centered relative to the centered and fixed saw blade (8) by means of the second centering device (32), and the first and second centering device (30) are provided in a common assembly (38), such that the centering of the saw blade (8) by the first centering device (32) predetermines a centering position for the subsequent centering of the hard material element (4) by the second centering device (32).

The invention relates to a device (2) for welding hard material elements (4) onto teeth (6) of a saw blade (8), comprising a saw blade feed device (12) for moving the saw blade (8) in a feed direction (14), such that a tooth (6a) of the saw blade (8) can be brought into a target position (16) in a working region (10) of the device (2), comprising a first centering device (30) for centering the saw blade (8) transversely to the feed direction (14), comprising a second centering device (32) for centering a respective hard material element (4) transversely to the feed direction (14), comprising a resistance welding device (24) having a welding electrode (26) that can be deployed into and withdrawn from the working region (10), comprising a supply device (28) for supplying and transferring a respective hard material element (4) to the welding electrode (26), and it being possible for the welding electrode (26) to be deployed in such a way that the hard material element (4) can be brought toward the tooth (6a) to abut the tooth (6a). According to the invention, the hard material element (4) can be centered relative to the centered and fixed saw blade (8) by means of the second centering device (32), and the first and second centering device (30) are provided in a common assembly (38), such that the centering of the saw blade (8) by the first centering device (32) predetermines a centering position for the subsequent centering of the hard material element (4) by the second centering device (32).

A hammer mountable at a rotor of a horizontal shaft impact crusher (HSi-crusher), the hammer including a front face, a rear face and at least one recess projecting inwardly into a main body of the hammer from the front face. The at least one recess being arranged to receive an attachment element to mount the hammer at a hammer lifting device.

A hammer mountable at a rotor of a horizontal shaft impact crusher (HSi-crusher), the hammer including a front face, a rear face and at least one recess projecting inwardly into a main body of the hammer from the front face. The at least one recess being arranged to receive an attachment element to mount the hammer at a hammer lifting device.

A system for fabricating an infiltrated downhole tool for introduction into a wellbore includes a mold assembly including a binder bowl, a mold, a preformed blank, and a funnel. The binder bowl has a lower portion and a plurality of apertures extending through the lower portion. The preformed blank is disposed within the infiltration chamber to provide an attachment area for a body of the infiltrated downhole tool, and the funnel is disposed intermediate the binder bowl and the mold. The system further includes a binder flow channel which extends through at least one of the preformed blank, the funnel, or a displacement core disposed within the mold assembly, the blank being concentrically arranged around the displacement core.