摘要:
A method for designing a formed sheet-metal part using a computing system is described. The method typically includes performing a numerical simulation of the forming process and computing a local property variable associated with points of the part. Problem zones of the sheet-metal part are identified based on the numerical simulation, and a visual representation of the sheet-metal part, in which problem zones are identified, is displayed. Information about a problem zone, such as status of the problem zone and the problem zone's unique identifier, are visually displayed.
摘要:
In a method for the numerical simulation of sheet-metal-forming processes, forming simulation parameters are visually displayed by: maintaining active values of the simulation-program-control parameters and standard values of the parameters that can be, used as a reference; determining a status of each parameter as being “noncompliant” if and only if the active value of the parameter is not equal to the standard value of the parameter; grouping parameters into display groups, and determining the status of a display group as being “noncompliant” if and only if the status of at least one of the parameters or other display groups assigned to the display group is “noncompliant”; displaying GUI elements showing the active values of the parameters, and GUI elements associated with a display group; and displaying, for each of the GUI elements, a visual indication of the status of the corresponding parameter or display group.
摘要:
In a method for the numerical simulation of sheet-metal-forming processes, forming simulation parameters are visually displayed by: maintaining active values of the simulation-program-control parameters and standard values of the parameters that can be, used as a reference; determining a status of each parameter as being “noncompliant” if and only if the active value of the parameter is not equal to the standard value of the parameter; grouping parameters into display groups, and determining the status of a display group as being “noncompliant” if and only if the status of at least one of the parameters or other display groups assigned to the display group is “noncompliant”; displaying GUI elements showing the active values of the parameters, and GUI elements associated with a display group; and displaying, for each of the GUI elements, a visual indication of the status of the corresponding parameter or display group.
摘要:
In a method for designing a formed sheet-metal part performed by a processor of a computing system, by means of: a numerical model of a geometry of the part, a numerical simulation of a forming process, and local property variables associated with points of the part and computed from results of the numerical simulation, a method for managing problem zones of the formed sheet-metal part comprises the steps of: determining problem zones of the sheet-metal part based on the results of the numerical simulation; determining a visual representation of the sheet-metal part, and displaying this visual representation on a display operatively coupled to the processor; indicating the location of the problem zones on the sheet-metal part; and displaying on the display device information associated with the at least one problem zone whose location is indicated.
摘要:
The invention concerns a method for the creation of addendums (4) of tools for sheet metal formed parts (2). In the case of this method, fill surfaces (7) for the smoothing of irregular zones of a component edge (3) are generated. Initial directions (31) of sectional profiles (10) are determined in such a manner, that sectional profiles (10) at a distance from one another are arranged along a component (3, 8) with utilization of these initial directions (31) and that an addendum (4) is creatable by the connection of these sectional profiles (10).
摘要:
The invention relates to a method for determining a geometrical object for modeling the geometry of a metal sheet forming stage (1) in a CAD system. According to said method, an operator is defined which links a first geometrical model with a second geometrical model. The link is associated with a method for physically modeling a treating process which transfers a forming stage (1) from a corresponding first state into a second state. When the first geometrical model is modified, the second geometrical model is automatically updated in accordance with the physical modeling concept. The physical modeling concept for forming stages is thereby integrated into the static geometrical model environment of a CAD system. The physical modeling method is a method for calculating a border line (3) of a forming stage in an initial state prior to a forming process from a geometry of the border line (3) in a resulting state after the forming process.
摘要:
In a method, a data processing system and a computer program for the configuration of tools and/or processes for the manufacturing of formed metal parts, raw data (r) for the description of a geometry and of a condition of a formed metal part are calculated from a set of nominal simulation parameters (d,n) through the simulation of a metal forming process. From a set of nominal simulation parameters (d,n) in a simulation run a set of raw data is calculated and saved, the preceding step is repeated several times with a variation of the simulation parameters (d,n), and as a result of this further sets of raw data (r) are generated and saved, and a statistical analysis (10) of several or of all the saved sets of raw data (r) is carried throughout for the purpose of calculating statistical characteristic values (Cr) of the raw data (r).
摘要:
A method for computer-aided generation determining of a method plan for the manufacture of sheet-metal forming parts by way of forming processes, comprises the following steps: determining a set of geometry features (11, 12, 13, 14, 15) of a part (10) in a geometry model of the part (10), wherein each of the geometry features (11, 12, 13, 14, 15) is described by a feature type and by way of geometric parameters for describing the geometric shape of the geometry features (11, 12, 13, 14, 15); determining an associated method standard for each of the geometry features (11, 12, 13, 14, 15), wherein a method standard describes one variant for manufacturing the respective geometry feature (11, 12, 13, 14, 15), the selection of the method standards which may be associated with a certain geometry features (11, 12, 13, 14, 15), is dependent on the feature type of the geometry feature (11, 12, 13, 14, 15), and wherein a method standard comprises at least one module, and a module represents a processing unit and describes which processing unit may be executed within a forming operation; producing, using the data processing unit, the method plan for manufacturing the part (10), the method plan comprising a representation of the manufacturing process as a sequence of forming operations, each forming operation being associated with one or more modules as defined by the method standards associated with the geometry features of the part.
摘要:
The invention concerns a method for the creation of addendums (4) of tools for sheet metal formed parts (2). In the case of this method, fill surfaces (7) for the smoothing of irregular zones of a component edge (3) are generated. Initial directions (31) of sectional profiles (10) are determined in such a manner, that sectional profiles (10) at a distance from one another are arranged along a component (3, 8) with utilization of these initial directions (31) and that an addendum (4) is creatable by the connection of these sectional profiles (10).
摘要:
The invention relates to a method for determining a geometrical object for modeling the geometry of a metal sheet forming stage (1) in a CAD system. According to said method, an operator is defined which links a first geometrical model with a second geometrical model. The link is associated with a method for physically modeling a treating process which transfers a forming stage (1) from a corresponding first state into a second state. When the first geometrical model is modified, the second geometrical model is automatically updated in accordance with the physical modeling concept. The physical modeling concept for forming stages is thereby integrated into the static geometrical model environment of a CAD system. The physical modeling method is a method for calculating a border line (3) of a forming stage in an initial state prior to a forming process from a geometry of the border line (3) in a resulting state after the forming process.