Topic
Stamping
About: Stamping is a research topic. Over the lifetime, 22501 publications have been published within this topic receiving 83554 citations.
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Patent•
25 Oct 2000
TL;DR: In this paper, a system and a method for a manufacturing operation for fabricating production stamping dies for making precise die blanks wherein the operation is controlled by computer is presented.
Abstract: The present invention provides a system and method for a manufacturing operation for fabricating production stamping dies for making precise die blanks wherein the operation is controlled by computer. The method and system produces proposed die blanks from a customer's proposed die blank configuration which are evaluated by the customer before trial and/or production stamping dies are made. In particular, the method provides a computer processing unit, which is accessible to the customer, wherein the computer provides die blank and stamping die CAD/CAM designing and manufacturing capabilities, data storage and retrieval, and coordinates all or particular functions involved in the manufacture of proposed die blanks and trial or production stamping dies.
27 citations
TL;DR: In this article, a theoretical failure model is presented for the numerical prediction of the forming limit strains of automotive sheet metal failures and an iterative approach is employed in the incremental solution of algebraic equations that may be applied both for proportional and non-proportional strain-controlled loadings.
27 citations
TL;DR: In this article, a flat-die tribometer and a bending-under-tension tribometer were used to investigate the frictional behavior of a single interstitial-free steel with four different distributions of intermetallic phases in the coating as well as steels from commercial producers.
27 citations
Patent•
24 Aug 1991TL;DR: In this paper, an automatic prodn line for sheet metal components comprises an automatic stamping unit (5) with numerous selectable tools for stamping, sinking, coining and piercing; a feeder unit (4) for feeding continuous metal strip to the stamping units; an automatic cutting unit (7,8) behind the cutting unit in the direction of strip travel; and a central control system (10), which controls the line units in the following automatic cycle.
Abstract: Automatic prodn line for sheet metal components comprises (a) an automatic stamping unit (5) with numerous selectable tools for stamping, sinking, coining and piercing; (b) a feeder unit (4) for feeding continuous metal strip to the stamping unit; (c) an automatic cutting unit (7,8) behind the stamping unit in the direction of strip travel; (d) a central control system (10), which controls the line units in the following automatic cycle The strip advanced to the stamping unit in accordance with the tool selected and after completion of the predetermined operation is moved to the cutting unit where a strip panel of predetermined length is cut off and the strip end is moved back into the stamping unit The parts are cut out from the panel in the cutting unit while new operations in the stamping unit are carried out at the same time ADVANTAGE - Automatic prodn line for sheet metal components, which is relatively simple, highly flexible and permits continuous operation from strip
26 citations
Book•
01 Jan 1978
TL;DR: In this paper, the authors present a state-of-the-art analysis of sheet metal forming processes using the rigid-plastic finite element (RPLF) method.
Abstract: Session I-State of the Art.- Chairman: W. Johnson, University of Cambridge.- Sheet Metal Stamping Technology-Need for Fundamental Understanding.- Discussion.- Experimental Studies of Material Behavior as Related to Sheet Metal Forming.- Discussion.- Plasticity Analysis of Sheet Metal Forming.- Discussion.- Session II-Constitutive Relations for Sheet Metal.- Chairman: E. H. Lee, Stanford University.- Plastic Deformation Behavior Under Conditions of Combined Stress.- Discussion.- Sheet Necking-I. Validity of Plane Stress Assumptions of the Long-Wavelength Approximation.- Sheet Necking-II. Time-Independent Behavior.- Discussion.- Session III-Role of Friction.- Chairman: J. J. Jonas, McGill University.- Friction and Lubrication in Sheet Metal Forming.- Discussion.- Drawbead Forces in Sheet Metal Forming.- Discussion.- Session IV-Instability Processes.- Chairman: S. S. Hecker, Los Alamos Scientific Laboratory.- Sheet Metal Forming Limits.- Discussion.- Limits to Ductility Set by Plastic Flow Localization.- Discussion.- Sheet Necking-III. Strain-Rate Effects.- Discussion.- Plastic Flow Properties in Relation to Localized Necking in Sheets.- Discussion.- Session V-Analysis of Deformation in Stamping Operations.- Chairman: B. Budiansky, Harvard University.- Deformation Analysis of Large Sized Panels in the Press Shop.- Discussion.- Deformation Analysis of Axisymmetric Sheet Metal Forming Processes by the Rigid-Plastic Finite Element Method.- Discussion.- Elastic-Viscoplastic Analyses of Simple Stretch Forming Problems.- Discussion.- Symposium Summary.- Participants.
26 citations