Patent · US Active

Die for a press and method for producing a green body by means of a press

US11420407B2 · kind B2 · utility

0Cited by

4References

19Claims

0Family size

Assignee

GKN Sinter Metals Engineering GmbH · DE

Inventors

Rainer Schmitt · Meckenheim, DE
Tobias Müller · Hirschberg, DE
Thomas Schupp · Grünstadt, DE

Key dates

Filing date	Dec 13, 2017
Grant date	Aug 23, 2022
Priority date	—
Expiry date	Nov 8, 2038

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB30B15/022
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The invention relates to a die for arrangement in a press, wherein the die extends along an axial direction between two end faces and forms an inner peripheral surface between the end faces, wherein the die extends from the inner peripheral surface along a radial direction toward an outer peripheral surface and toward at least one centering surface that is disposed in the radial direction on a first diameter, wherein the die has a pressing zone that is spaced apart from the end faces and, in the vicinity of the pressing zone, the die has a greater maximum first stiffness, at least relative to zones of the die that are arranged on the end faces, compared to a pressing force acting on the inner peripheral surface in a direction of a normal vector, and wherein the maximum first stiffness is at least 10% greater than a minimum second stiffness that is present in at least one zone that is arranged on one of the end faces.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.