# US 10,372,849 B2 · Performing and communicating sheet metal simulations employing a combination of factors > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,372,849 B2 - Document ID: US10372849B2 - Status: Granted - Kind: B2 - Application number: 15/317,759 - Filed: 2015-06-10 - Published: 2017-05-18 - Granted: 2019-08-06 - Earliest claimed: 2014-06-11 - Assignees: Magna International Inc. - Applicants: Magna International Inc.; Thomas James Oetjens; Thomas Lome Chartrand - Inventors: Thomas James Oetjens; Thomas Lome Chartrand - Web page: https://patentgrep.com/patent/US10372849B2 ## CPC - G06F 30/23: using finite element methods [FEM] or finite difference methods [FDM] - B21D 53/88: other parts for vehicles, e.g. cowlings, mudguards - G06F 30/15: Vehicle, aircraft or watercraft design - G06F 30/20: Design optimisation, verification or simulation (optimisation, verification or simulation of circuit designs G06F30/30) - G06F 2113/24: Sheet material - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - B21D: WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL (working or processing of wire B21F) ## Abstract Sheet metal is provided as a template to create a finished product. After various metal transformation techniques are performed on the sheet metal, the sheet metal may be converted to the finished product. The sheet metal manipulation may encompass different techniques, such as thinning, bending, cutting, and the like. The manipulated sheet metal may be sourced for various products, such as a body of a vehicle. The aspects disclosed herein combine various tests employed to detect the integrity of the sheet metal transformation into a singular output. ## Claims ### Claim 1 A system for simulating a sheet metal transformation, comprising: a data store comprising a computer readable medium storing a program of instructions for the simulation; a processor that executes the program of instructions; a materials interface module to retrieve, from a persistent store associated with the processor, a plurality of sheet metal properties data associated with materials employed with a sheet metal simulated via the sheet metal transformation to produce a transformed sheet metal; a formula interfacer to interface with an application associated with the sheet metal transformation to retrieve, from the persistent store, a plurality of formulas associated with, at least, an intended transformation corresponding to the sheet metal transformation, the formula interfacer being configured to combine more than one sheet metal transformation test; a formability interfacer to retrieve, from the persistent store, a parameter associated with a threshold of thinning and cracking associated with the transformed sheet metal; and an analyzer associated with the formability interface, the analyzer being configured to generate, per predefined demarcated zones of the sheet metal, data corresponding to transformed sheet metal response for each of the demarcated zones, wherein the analyzer generates the data using the plurality of sheet metal properties data, the plurality of formulas, and the parameter. ### Claim 2 (depends on 1) The system according to claim 1, further comprising a formability display driver to communicate to a digital display the data, the data being defined as a type of failure associated with each of the demarcated zones. ### Claim 3 (depends on 2) The system according to claim 2, wherein the plurality of formulas employs data generated from a combination of stress tests, thinning limit curve tests, pressure and tension tests, and a failure stress curve tests. ### Claim 4 (depends on 3) The system according to claim 3, wherein each of the tests is represented by a unique color or pattern and rendered onto a digitally rendered version of the transformed sheet metal. ### Claim 5 (depends on 1) The system according to claim 1, further comprising a formability display driver to communicate to a digital display the data, the data being defined as an indication of whether each of the demarcated zones undergoes a formability failure. ### Claim 6 (depends on 5) The system according to claim 5, wherein the parameter is defined as a predefined limit associated with each of the demarcated zones. ### Claim 7 (depends on 6) The system according to claim 6, wherein the predefined limit is defined as a cracking threshold for the sheet metal based on the data of the associated materials. ### Claim 8 (depends on 6) The system according to claim 6, wherein the predefined limit is defined as an allowable thinness for each of the demarcated zones based on the data of the associated materials. ### Claim 9 (depends on 5) The system according to claim 5, wherein a likelihood of cracking is represented by a unique color or pattern and rendered onto a digitally rendered version of the transformed sheet metal. ### Claim 10 (depends on 1) The system according to claim 1, wherein the formability interfacer identifies a plurality of the demarcated zones as edge pieces, and analyzes whether an edge crack is to occur for each of the identified edge pieces of the demarcated zones. ### Claim 11 A method for simulating a sheet metal transformation, comprising: retrieving, from a persistent store, an electronic representation of materials associated with a sheet metal to undergo the sheet metal transformation; employing a plurality of variables with a plurality of sheet metal transformations tests to provide a single set of output data for the transformed sheet metal; retrieving, from the persistent store, a parameter associated with a threshold of thinning and cracking associated with the transformed sheet metal; and performing a commercial formability simulation based on the electronic representation of the materials, the parameter, and the plurality of received variables, wherein the retrieving, the employing, and the performing is performed on a processor. ### Claim 12 (depends on 11) The method according to claim 11, wherein the plurality of tests comprises a stress test, a thinning limit curve test, a contact pressure limit and bending under tension test, and a failure stress curve test. ### Claim 13 (depends on 12) The method according to claim 12, wherein the plurality of tests each have an individual formula, and a single formula is derived by combining each of the plurality of test's individual formula. ### Claim 14 (depends on 13) The method according to claim 13, further comprising deciding to display at least one of the failure zones based on the plurality of tests or a thinning value associated with the transformed sheet metal.