Abstract: A removable image-capture apparatus (200) comprises an opening (202) intended to receive a calibration plate (10) bearing a reference marking (30) and possibly a test marking (40). The apparatus (200) comprises a source (204) of backlighting visible light situated beneath the opening (202), a sensor (205) for acquiring an image, in the backlighting visible light, of the plate (10), a guiding and supporting device (206) for positioning the sensor (205) above the opening (202) relative to the surround (201), a calculation device (207) configured to analyze the image, recognize the marking (30) and possibly the marking (40) in the image, and calculate aiming-command corrections intended for a firing system firing a powerful incident-radiation beam, which system belongs to an additive manufacturing apparatus, distinct and separate from the apparatus (200).

Abstract: A powder-based additive manufacturing installation (10) comprises a powder layering device (14) that can be displaced along a path linking a start zone (A) and an end zone (B). The layering device (14) comprises powder deposition means (18) for depositing powder in a powder deposition zone (D) situated between the start zone (A) and the end zone (B). The installation comprises a cleaning device (40) situated on the path of the layering device (14). The cleaning device (40) comprises a blowing device (42) configured to blow a gas flow onto at least one surface of the powder deposition means (18).

Abstract: A powder-based additive manufacturing installation (10) comprises a powder layering device (14) that can be displaced along a path linking a start zone (A) and an end zone (B). The layering device (14) comprises powder smoothing means (35) for depositing powder in a powder deposition zone (P) situated between the start zone (A) and the end zone (B). The installation furthermore comprises a cleaning device (60) situated on the path of the layering device (14), the cleaning device (60) comprising a brushing device (62) for brushing at least one surface of the powder smoothing means (35).

Abstract: A powder-based additive manufacturing installation (10) comprises a powder layering device (14) that can be displaced along a path linking a start zone (A) and an end zone (B). The layering device (14) comprises powder deposition means (18) for depositing powder in a powder deposition zone (D) situated between the start zone (A) and the end zone (B). The installation comprises a cleaning device (40) situated on the path of the layering device (14). The cleaning device (40) comprises a blowing device (42) configured to blow a gas flow onto at least one surface of the powder deposition means (18).

Abstract: The lining for a mold for vulcanizing a tire, comprises at least one network of cords and of sipe blades for molding a corresponding network of grooves and of cuts in the tread. The network of cords and of blades comprises at least one node between two cords. Each cord of the network overmolds at least the edge of a blade.

Abstract: Method of manufacturing a lining element intended to be attached to a support block of a tire mould, comprising the following steps: manufacturing, by selective melting of superposed layers of powder, of an intermediate element comprising the lining element and at least one local support element for locally supporting the lining element, the lining element and the local support element being produced as a single piece, separating the lining element from the support element.

Abstract: The invention concerns a lining element intended to be applied to a support block of a segment of a segmented mold for tires, the lining element being intended to form tread patterns on part of a tire tread, characterized in that it comprises an outer shell (30) delimiting an inner volume and a core (34) inside the shell.

Abstract: Method of manufacturing a lining element intended to be attached to a support block of a tire mould, comprising the following steps: manufacturing, by selective melting of superposed layers of powder, of an intermediate element comprising the lining element and at least one local support element for locally supporting the lining element, the lining element and the local support element being produced as a single piece, separating the lining element from the support element.

Abstract: The invention concerns a lining element intended to be applied to a support block of a segment of a segmented mould for tires, the lining element being intended to form tread patterns on part of a tire tread, characterized in that it comprises an outer shell (30) delimiting an inner volume and a core (34) inside the shell.

Abstract: The lining for a mould for vulcanizing a tire, comprises at least one network of cords and of sipe blades for molding a corresponding network of grooves and of cuts in the tread. The network of cords and of blades comprises at least one node between two cords. Each cord of the network overmoulds at least the edge of a blade.

Abstract: A mold for vulcanizing an unvulcanized tire blank comprises: two axial members each carrying a molding surface for molding a sidewall of the tire, at least one of the axial members being movable between a position for molding the sidewall and a position for unmolding the tire; at least one molding member for molding a channel in a tread of the tire, the molding member being movable between a channel-molding position and a channel-unmolding position; and axial movement means for axially moving the channel-molding member between its molding and unmolding positions. The axial movement means include releasable connection means between the channel-molding member and the axial member.

Abstract: A tire includes a tread in which there is provided a molded channel. The molded channel is interrupted by at least one furrow of the tread and extends along a curved path. The path of the molded channel is preferably substantially parallel to an outside surface of the tread in a radial section plane of the tire.

Abstract: A mold for vulcanizing an unvulcanized tire blank comprises: two axial members each carrying a molding surface for molding a sidewall of the tire, at least one of the axial members being movable between a position for molding the sidewall and a position for unmolding the tire; at least one molding member for molding a channel in a tread of the tire, the molding member being movable between a channel-molding position and a channel-unmolding position; and axial movement means for axially moving the channel-molding member between its molding and unmolding positions. The axial movement means include releasable connection means between the channel-molding member and the axial member.