Sheet Metal Forming Method Planning Automation
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Solution Overview
Problem
Current methods for manufacturing sheet-metal forming parts are inefficient and prone to errors due to reliance on manual experience, lack of standardization, and limited use of 3D geometry, leading to inaccurate cost estimates and time-consuming planning processes.
Innovation Solution
A computer-aided method for generating tool parameters that involves determining geometry features, method standards, and component parameters, allowing for automated determination of machining steps and cost calculations, with optional semi-automatic interaction for design decisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual method planning based on planner experience is used, then flexibility in handling individual cases is achieved, but time consumption and cost increase significantly
Solution Approach 1:
The system performs preliminary actions by pre-defining method standards, modules, and components in a standardized hierarchy before actual method planning. This allows the evaluation unit to quickly assess and select appropriate pre-prepared solutions during planning, reducing time consumption while maintaining adaptability through the structured framework of reusable method elements.
2Reliability
If manual method planning is used, then experience-based solutions are obtained, but reproducibility and comparability of different solutions suffer
Solution Approach 1:
The system changes parameters by transitioning from subjective experience-based planning to objective parameter-driven planning. Method standards, modules, and components are defined with specific geometric and technical parameters that can be objectively evaluated and compared. This enables reproducible and comparable solutions across different planners and projects while maintaining reliability through systematic parameter evaluation.
3Ease of manufacture
If 2D screenshots are used for visual representation, then simple guidelines can be applied, but inaccuracies occur due to insufficient use of 3D geometry
Solution Approach 1:
The system transitions from 2D screenshot representation to 3D geometry-based method planning. By utilizing three-dimensional geometric models and parameters, the system achieves more accurate method plans that properly represent spatial relationships and geometric features. This dimensional enhancement maintains ease of manufacture through structured 3D data while significantly improving manufacturing precision.
4Adaptability or versatility
If cost estimates are calculated manually by different persons, then flexibility in assessment is achieved, but objectivity and comparability are lost
Solution Approach 1:
The system implements feedback mechanisms by using the evaluation unit to systematically assess method standards, modules, and components based on predefined criteria and parameters. This structured feedback process provides objective cost estimates that are comparable across different assessments while maintaining flexibility through the ability to evaluate various method alternatives against the same objective standards.
Data Source
AI summary
A method for computer-aided generation of tool parameters for tools for the manufacture of sheet-metal forming parts by way of forming processes, including 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);determining an associated method standard for each of the geometry features (11, 12, 13, 14, 15), 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;determining components for each of the modules of the method standard, wherein these components describe the parts of tools which are required for realising the module;determining component parameters from geometric parameters of the geometry features (11, 12, 13, 14, 15), wherein the component parameters comprise geometric parameters of the components or of the respective tools.