Patent classifications
B30B11/007
Method and system for forming protrusions, and method for manufacturing metal component having protrusions
Solid metal protrusions are formed by the method including: clamping and fixing the metal workpiece between a support die and a pressure die; pressing end cross sections of two or more outer peripheral end parts of the metal workpiece fixed between the support die and the pressure die at a temperature lower than a softening point of a metal used as the metal workpiece from a direction perpendicular or oblique to an upright direction of the protrusions to be formed on one surface of the metal workpiece by press molding using a pressing die or a pressing jig; undergoing plastic flows of metal into through-holes formed as recessed parts that serve as female molds for forming the protrusions in at least one of the support die and the pressure die; and forming solid protrusions on the surface of the metal workpiece.
CUTTING PLATE AND METHOD AND COMPRESSION MOLD FOR PRODUCING A GREEN BODY OF THE CUTTING PLATE
A compression tool, a cutting plate and a method of producing a cutting plate by multiaxial pressing a powder mixture of a hard metal component and a binder to form a green body is provided. After pressing, the body has two parallel main surfaces and a peripheral edge surface extending between and connecting the main surfaces. The main surfaces include depressions, such that cutting edges are formed at the intersection of the bottom of the depressions and at least a part of the edge surface. A heading tool includes a main punch and an independently moveable form punch. In a first pressing step, the form punch is moved towards the powder mixture to form a preliminarily compressed portion. In a second step, the main punch and the form punch are both moved towards a final position to provide the green body with its final dimensions including the depressions
Apparatus for forming a catamenial tampon
A doming tool for manufacturing absorbent tampon includes a plurality of stations made of devices for shaping a tampon pledget tip, and a hollow mandrel engaging with the stations. The stations are supported by at least one mounting plate.
Method for measuring or calibrating utensils used in a press
In a method for measuring or calibrating utensils, in particular in pressing processes, different dimensions and/or positions of the utensils, such as tools, stamps, die units, chucks or the like, are determined. A measuring device is provided, with which the utensils are placed relative to one another in the press as in the installed state and are displaceable relative to one another at least in the axial direction of the opening in the die unit forming the die and are measured and/or calibrated individually and relative to one another. The pressed parts and workpieces to be produced using a press can thus be manufactured in a highly precise manner, moreover in high numbers using the same utensils.
Tampon press
A press for shaping an absorbent tampon blank into a shaped tampon pledget includes a central cavity arranged and configured to accommodate an absorbent tampon blank having a front portion and a back portion. The main longitudinal axis of the press passes in the middle of the central cavity and a plurality of penetrating dies are arranged radially around the said main longitudinal axis. Each penetrating die has a pressing face on at least a fragment of its side facing the central cavity. The said press comprises at least one cam to actuate the plurality of penetrating dies. Furthermore, the plurality of penetrating dies comprises at least one penetrating die having a pressing face with a first shaped longitudinal profile, and least one penetrating die having a pressing face with a second shaped longitudinal profile.
Cell assemblies and methods of using the same
Embodiments disclosed herein relate to cell assemblies for fabricating superhard materials (e.g., used in a high-pressure cubic press) and methods of using the same. The disclosed cell assemblies include a plurality of internal anvils, at least some of which are positioned internally relative to a cell pressure medium of the cell assembly. Such a configuration for the cell assemblies may enable one or more of intensifying cell pressure, reducing processing time, or reducing costs for fabricating such superhard materials.
Cutting inserts with cross-holes and green bodies and methods for making such cutting inserts and green bodies
A green body for a cross-hole, compacted cutting insert, as well as a cutting insert, equipment for making a green body, and method for making a green body, wherein the green body includes a first side, a second side, and a side surface extending between the first side and the second side entirely around the first side and the second side. The green body includes a quadrilateral-shaped cross-hole extending through the green body from a first location on the side surface to a second location on the side surface on an opposite side of the green body from the first location. The quadrilateral-shape of the cross-hole can assist in achieving a more uniform density of compactable material in the green body.
Reinforced press base, piston cavity sleeve, and method of reinforcing a press base
A press base may include a piston cavity formed in the press base and a piston cavity sleeve positioned in the piston cavity. The piston cavity sleeve may include a wall having an outer surface and an inner surface opposite the outer surface. The piston cavity sleeve may further include a floor having an upper surface and a lower surface opposite the upper surface. An outer radius may be formed at a juncture of the outer surface of the wall and lower surface of the floor and an inner radius may be formed at a juncture of the inner surface of the wall and upper surface of the floor. The inner radius may exhibit a radius of curvature that is greater than a radius of curvature of the outer radius.
PRESS-TOOL
A press-tool for manufacturing a cutting insert green body includes a first and a second punch movable along a first pressing axis. A first and a second die member are movable towards an end position. The first and the second die members are configured to form, in the end position, a die cavity. A core extends between and through the die cavity when the first and the second die member are in the end position. At least a first core portion is arranged to form the core, wherein the at least first core portion is arranged in the first or the second die member such that the at least first core portion is moved together with the first or the second die member.
MANUFACTURING A HARD-METAL PRESSED ARTICLE
A method for the near-net-shape manufacture of hard-metal pressed articles comprises providing a multi-part die comprising a plurality of lateral mold parts defining lateral surfaces of a cavity for a pressed article. At least one of the plurality of lateral mold parts further defines a portion of an upper side of the cavity. The lateral mold parts are fed. At least two lateral punch parts are fed. At least two of the plurality of lateral mold parts are provided with a guide recess for one of the at least two lateral punch parts. A filling unit is fed above an opening of the cavity, and the cavity is filled with a hard-metal powder. At least one upper mold part is fed, which defines a portion of the upper side of the cavity. The lateral mold parts and the upper mold part are firmly held to form the cavity. The powder is compressed with at least two lateral punch parts. The lateral mold parts, the upper mold part and the punch parts are opened for demolding the pressed article.