JP2009148838A5

JP2009148838A5 -

Info

Publication number: JP2009148838A5
Application number: JP2009092505A
Authority: JP
Filing date: 2009-04-06
Publication date: 2009-08-20
Anticipated expiration: 2026-08-31

Claims

A press molding analysis step in which a computer numerically analyzes press molding molding conditions to obtain molding data of a press molded product,
An arithmetic processing step in which a computer performs arithmetic processing on at least one of sheet thickness or elastic modulus data which is a physical property value of a partial region of the press-molded product among the molding data of the press-molded product;
A computer calculates a springback amount based on a result of the arithmetic processing, and calculates a springback amount;
A method for identifying the cause of occurrence of springback, comprising:

A press molding analysis step in which a computer numerically analyzes press molding molding conditions to obtain molding data of a press molded product,
An arithmetic processing step in which the computer performs arithmetic processing on at least one of stress component value data that is not all of the stress component of a partial region of the press molded product among the molding data of the press molded product,
A computer calculates a springback amount based on a result of the arithmetic processing, and calculates a springback amount;
A method for identifying the cause of occurrence of springback, comprising:

A press molding analysis step in which a computer numerically analyzes press molding molding conditions to obtain molding data of a press molded product,
An arithmetic processing step in which the computer performs arithmetic processing on at least one of the component value data of the strain of the partial region of the press-molded product among the molding data of the press-molded product,
A computer calculates a springback amount based on a result of the arithmetic processing, and calculates a springback amount;
A method for identifying the cause of occurrence of springback, comprising:

In the spring back generation | occurrence | production cause identification method of Claims 1-3 , when the said spring back amount becomes the smallest by repeating the said calculation process step and the spring back amount calculation step by changing the said partial area, or A springback generation cause identifying method including a step of identifying the region, the physical property value, and the physical quantity when the difference from the springback amount when the springback analysis is performed without performing the arithmetic processing is the largest.

In the springback generation | occurrence | production cause identification method of Claims 1-3, the said calculation process step and the springback amount calculation step are repeatedly performed by changing at least one of the said physical property value and a physical quantity, and / or the said calculation process. The step of specifying the region, the physical property value, and the physical quantity when the springback amount becomes the smallest or when the difference from the springback amount when the springback analysis is performed without performing the arithmetic processing becomes the largest. A method for identifying the cause of the occurrence of springback.

6. The springback occurrence cause identifying method according to claim 1, wherein the partial area is a plurality of areas, and the arithmetic processing is simultaneously performed for each area.

The method according to claim 1, wherein the partial area is one or more elements or calculation unit sections.

The method for identifying the cause of occurrence of springback according to any one of claims 1 to 6 , wherein the partial area is one or more integration points.

A press molding analysis unit that numerically analyzes the molding conditions of press molding and obtains molding data of the press molded product,
A numerical analysis of the molding data, and a springback analysis unit for calculating a springback amount;
Among the molding data of the press-molded product, perform arithmetic processing on at least one of the data of the thickness or the elastic modulus that is a physical property value of a partial region of the press-molded product, and the spring back analysis unit, An arithmetic processing unit for calculating a springback amount based on a result of the arithmetic processing;
A device for identifying the cause of springback occurrence, comprising:

A press molding analysis unit that numerically analyzes the molding conditions of press molding and obtains molding data of the press molded product,
A numerical analysis of the molding data, and a springback analysis unit for calculating a springback amount;
Among the molding data of the press-molded product, an arithmetic process is performed on at least one of stress component value data that is not all of the stress component of a partial region of the press-molded product, and the springback analysis unit An arithmetic processing unit for calculating a springback amount based on the result of the arithmetic processing;
A device for identifying the cause of springback occurrence, comprising:

A press molding analysis unit that numerically analyzes the molding conditions of press molding and obtains molding data of the press molded product,
A numerical analysis of the molding data, and a springback analysis unit for calculating a springback amount;
Of the molding data of the press-molded product, the calculation processing is performed on at least one of the component value data of the strain of the partial region of the press-molded product, and the result of the computation processing is performed in the springback analysis unit. An arithmetic processing unit for calculating a springback amount based on
A device for identifying the cause of springback occurrence, comprising:

12. The springback occurrence cause identifying device according to claim 9-11, wherein the calculation processing unit repeatedly calculates the result of the calculation processing and the calculation of a springback amount by changing the partial area. Identifying the cause of springback occurrence that specifies the region, physical property value, and physical quantity when the amount is the smallest or when the difference from the springback amount when the springback analysis is performed without performing the arithmetic processing is the largest apparatus.

In the spring back generation | occurrence | production cause specific device of Claims 9-11, the said arithmetic processing part changes the said physical property value, a physical quantity, and / or the said arithmetic processing, and the calculation of the result of the said arithmetic processing and the amount of springbacks. The region, the physical property value, and the physical quantity when the springback amount becomes the smallest by repeating it, or when the difference from the springback amount when the springback analysis is performed without performing the arithmetic processing becomes the largest. A device that identifies the cause of springback occurrence.

The springback occurrence cause identifying device according to any one of claims 9 to 13, wherein the partial area is a plurality of areas, and the arithmetic processing is simultaneously performed for each area.

A press molding analysis procedure for numerically analyzing press molding molding conditions to obtain molding data of a press molded product,
An arithmetic processing procedure for performing arithmetic processing on at least one of sheet thickness or elastic modulus data which is a physical property value of a partial region of the press molded product among the molding data of the press molded product,
A springback amount calculation procedure for calculating a springback amount based on a result of the arithmetic processing;
A program for determining the cause of springback, characterized by causing a computer to execute.

A press molding analysis procedure for numerically analyzing press molding molding conditions to obtain molding data of a press molded product,
Among the molding data of the press-molded product, an arithmetic processing procedure for performing arithmetic processing on at least one of stress component value data that is not all stress components of a partial region of the press-molded product,
A springback amount calculation procedure for calculating a springback amount based on a result of the arithmetic processing;
A program for determining the cause of springback, characterized by causing a computer to execute.

A press molding analysis procedure for numerically analyzing press molding molding conditions to obtain molding data of a press molded product,
Among the molding data of the press-molded product, an arithmetic processing procedure for performing arithmetic processing on at least one of the strain component value data of a partial region of the press-molded product,
A springback amount calculation procedure for calculating a springback amount based on a result of the arithmetic processing;
A program for determining the cause of springback, characterized by causing a computer to execute.

18. The springback occurrence cause identifying program according to claim 15 to 17 , wherein the springback amount is minimized by repeatedly performing the calculation processing procedure and the springback amount calculation procedure while changing the partial area. A springback generation cause identifying program having a procedure for identifying the region, the physical property value, and the physical quantity when the difference from the springback amount when performing the springback analysis without performing the arithmetic processing becomes the largest. .

In the spring back generation | occurrence | production cause specific program of Claims 15-17, by performing the said arithmetic processing procedure and the said spring back amount calculation procedure by changing at least one of the said physical-property value and a physical quantity, and the said arithmetic processing, and repeatedly. A procedure for specifying the region, the physical property value, and the physical quantity when the springback amount is the smallest or when the difference from the springback amount when the springback analysis is performed without performing the arithmetic processing is the largest. A program for identifying the cause of the occurrence of springback.

20. The springback occurrence cause identification program according to claim 15-19, wherein the partial area is a plurality of areas, and the calculation processing is simultaneously performed for each area.

A numerical analysis of press molding molding conditions, and a springback occurrence cause identifying program cooperating with a numerical analysis program for causing a computer to execute a procedure for calculating molding data and springback amount of press molding,
A procedure for acquiring the molding data from the numerical analysis program;
Among the molding data of the press-molded product, a procedure for performing arithmetic processing on at least one of a plate thickness or an elastic coefficient that is a physical property value of a partial region of the press-molded product;
The computer running the numerical analysis program, and outputs the result of the arithmetic processing, and the procedure for obtaining the amount of spring back from the computer to perform the numerical analysis program,
A program for determining the cause of springback, characterized by causing a computer to execute.

It is a springback occurrence cause identifying program that cooperates with a numerical analysis program that causes a computer to perform a procedure for calculating the molding data and springback amount of press molding by numerically analyzing the molding conditions of press molding,
A procedure for acquiring the molding data from the numerical analysis program;
Among the molding data of the press-molded product, a procedure for performing arithmetic processing on at least one of stress component value data that is not all stress components in a partial region of the press-molded product;
A procedure for outputting a result of the arithmetic processing to a computer that executes the numerical analysis program and obtaining a springback amount from the computer that executes the numerical analysis program;
A program for determining the cause of springback, characterized by causing a computer to execute.

It is a springback occurrence cause identifying program that cooperates with a numerical analysis program that causes a computer to perform a procedure for calculating the molding data and springback amount of press molding by numerically analyzing the molding conditions of press molding,
A procedure for acquiring the molding data from the numerical analysis program;
Among the molding data of the press-molded product, a procedure for performing arithmetic processing on at least one of the strain component value data of a partial region of the press-molded product;
A procedure for outputting a result of the arithmetic processing to a computer that executes the numerical analysis program and obtaining a springback amount from the computer that executes the numerical analysis program;
A program for determining the cause of springback, characterized by causing a computer to execute.

The springback generation cause identifying program according to any one of claims 21 to 23 , wherein the springback amount is minimized by repeatedly performing the calculation processing procedure and the springback amount calculation procedure while changing the partial area. A springback generation cause identifying program having a procedure for identifying the region, the physical property value, and the physical quantity when the difference from the springback amount when performing the springback analysis without performing the arithmetic processing becomes the largest. .

In the springback occurrence cause identifying program according to any one of claims 21 to 23, by repeatedly performing the calculation processing procedure and the springback amount calculation procedure by changing at least one of the physical property value and the physical quantity and the calculation processing. A procedure for specifying the region, the physical property value, and the physical quantity when the springback amount is the smallest or when the difference from the springback amount when the springback analysis is performed without performing the arithmetic processing is the largest. A program for identifying the cause of the occurrence of springback.

A computer-readable recording medium on which the springback occurrence cause identifying program according to any one of claims 15 to 25 is recorded.