초록 ▼

Uniform cooling of complex surface shapes in injection mold tooling can be accomplished with cooling channels that conform to the shapes of the mold cavity or mold cone. By conventional methods this can be very difficult to accomplish. By applying methods of material deposition or material sintering

Uniform cooling of complex surface shapes in injection mold tooling can be accomplished with cooling channels that conform to the shapes of the mold cavity or mold cone. By conventional methods this can be very difficult to accomplish. By applying methods of material deposition or material sintering, which include but are not limited to, laser metal deposition, where material is deposited on a layer by layer basis, certain cooling or heating passages could be integrated into the manufactured component that follow the contours and profiles of the mold's complex surfaces. These passages would act as internal heat sinks with a much higher surface area for heat transfer than traditional drilled and plugged straight passages. These geometries could also be incorporated into complex geometries such as, but not limited to, turbine blades where the cooling passages can follow the contour of the outer shape, provide a more uniform or controlled heat transfer from the component. Multiple loops of cooling or heating channels could be designed and manufactured into solid objects for small-scale heat exchanger technologies.

대표청구항 ▼

Uniform cooling of complex surface shapes in injection mold tooling can be accomplished with cooling channels that conform to the shapes of the mold cavity or mold cone. By conventional methods this can be very difficult to accomplish. By applying methods of material deposition or material sintering

Uniform cooling of complex surface shapes in injection mold tooling can be accomplished with cooling channels that conform to the shapes of the mold cavity or mold cone. By conventional methods this can be very difficult to accomplish. By applying methods of material deposition or material sintering, which include but are not limited to, laser metal deposition, where material is deposited on a layer by layer basis, certain cooling or heating passages could be integrated into the manufactured component that follow the contours and profiles of the mold's complex surfaces. These passages would act as internal heat sinks with a much higher surface area for heat transfer than traditional drilled and plugged straight passages. These geometries could also be incorporated into complex geometries such as, but not limited to, turbine blades where the cooling passages can follow the contour of the outer shape, provide a more uniform or controlled heat transfer from the component. Multiple loops of cooling or heating channels could be designed and manufactured into solid objects for small-scale heat exchanger technologies. or more feedstocks, to construct a solid component having hollow and multi material structures therein. 14. A method to locally control the thermal history of a three dimensional structure, said method comprising: a. subjecting one or more feedstocks to a material deposition process and depositing said feedstocks onto a substrate while heating the one or more feedstocks with a laser simultaneously with feedstock deposition onto the substrate; b. repeating step a. sufficient times in a defined, layerwise pattern incorporating regions of voids and/or materials other than said one or more feedstocks to construct a three dimensional structure with a particular thermal history, thereby forming the three dimensional structure with a particular thermal history. 15. The method of claim 14, wherein said regions of voids or materials other than said one or more feedstocks comprise a combination of both. 16. A method to provide high efficient heat transfer within a three dimensional structure, said method comprising: a. subjecting one or more feedstocks to a material deposition process and depositing said feedstock onto a substrate while heating the one or more feedstocks with a laser simultaneously with feedstock deposition onto the substrate; b. repeating step a. sufficient times in a defined, layerwise pattern incorporating regions of voids and/or materials other than said one or more feedstocks effective to control heat transfer while constructing said three dimensional structure. 17. A method to create components that allow thermal characteristics of a three dimensional structure to be engineered into a component, said method comprising: a. subjecting one or more feedstocks to a material deposition process and depositing said feedstock onto a substrate while heating the one or more feedstocks with a laser simultaneously with feedstock deposition onto the substrate; b. repeating step a. sufficient times in a defined, layerwise pattern, incorporating embedded voids or regions of varying materials, to construct said three dimensional structure. 18. The method of claim 17, wherein said voids or regions of varying materials comprise a combination of both. 19. A method to control pressure drop across embedded features in a three dimensional structure, said method comprising: a. subjecting one or more feedstocks to a material deposition process and depositing said feedstock onto a substrate while heating the one or more feedstocks with a laser simultaneously with feedstock deposition onto the substrate; b. repeating step a. sufficient times in a defined, layerwise pattern in which the cross-section area and length of individual embedded structures are approximately equal in order to provide uniform flow characteristics and pressure in said three dimensional structure.