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.

A score die including a body with a generally planar first surface. The first surface includes a score blade. The score blade has a number of cutting portions, and, each cutting portion has a substantially uniform cross-section.

A method of adjusting a stamping die is provided. The method includes providing a two-sided stamping die configured to form parts from sheet metal blanks according to a desired geometry upon closing the die, adjusting the desired geometry of the part, and repeatedly depositing layer upon layer of material onto a first side of the die in a stacked configuration to modify the geometry of the first side of the die such that the die forms parts from sheet metal blanks according to the adjusted desired geometry.

A method of adjusting a stamping die is provided. The method includes providing a two-sided stamping die configured to form parts from sheet metal blanks according to a desired geometry upon closing the die, adjusting the desired geometry of the part, and repeatedly depositing layer upon layer of material onto a first side of the die in a stacked configuration to modify the geometry of the first side of the die such that the die forms parts from sheet metal blanks according to the adjusted desired geometry.

A method of producing a flow field plate for a fuel cell comprises over-profiling relief features in a die set to more accurately reproduce the intended flow channel features in the pressed plate. The process includes determining a target relief profile of features extending across the plate along at least a first dimension of the plate, modulating the relief profile with an over-profiling parameter, as a function of the first dimension; forming a die with the modulated relief profile; and pressing a flow field plate using the die with modulated relief profile to thereby produce the unmodulated, target relief profile in the flow field plate.

A method of producing a flow field plate for a fuel cell comprises over-profiling relief features in a die set to more accurately reproduce the intended flow channel features in the pressed plate. The process includes determining a target relief profile of features extending across the plate along at least a first dimension of the plate, modulating the relief profile with an over-profiling parameter, as a function of the first dimension; forming a die with the modulated relief profile; and pressing a flow field plate using the die with modulated relief profile to thereby produce the unmodulated, target relief profile in the flow field plate.

A machine (1) for working a ribbon-shaped element (T1, T2, T2) is described, comprising at least one cutting station (2) crossed by the ribbon-shaped element (T1, T2, T2), guiding means (3, 4) adapted to position and drag the ribbon-shaped element (T1, T2, T2) onto at least one fixed plane (PI) of the cutting station (2) keeping an edge of the ribbon-shaped element (T1, T2, T2) tangent to a fixed point (A1) of the fixed plane (Pi); at least one of the guiding means (3, 4) rests onto an arm (31) free of rotating with respect to a fixed axis (33); the fixed axis (33) is at the same distance with respect to the cutting station (2) and the at least one of the guiding means (3, 4).

A method of forming grooves (3) of a fine periodic structure in the surface (1) of the diamond by irradiating at least part of the surface (1) of the diamond having a mean surface roughness Ra of not more than 0.1 m with a laser beam of a pulse width of not less than 1 ns generating a periodic intensity profile.

A method of forming grooves (3) of a fine periodic structure in the surface (1) of the diamond by irradiating at least part of the surface (1) of the diamond having a mean surface roughness Ra of not more than 0.1 m with a laser beam of a pulse width of not less than 1 ns generating a periodic intensity profile.

A tool for hot stamping metal sheets, formed least partially of a base block and a functional layer, is proposed. The functional layer comprises cooling channels and multiple functional layers, which building upon each other create the connection to the base block. The cooling channels are designed as a cooling channel array and are produced in a laser sintering method.