CAD Design-for-Manufacturability Checks for Material Waste Reduction
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Solution Overview
Problem
Current manufacturing processes lack real-time design-for-manufacturability checks, leading to inefficiencies in material usage and production costs due to inadequate consideration of manufacturing facility capabilities and tooling availability during the design phase.
Innovation Solution
A method that integrates design-for-manufacturability checks within a computer-aided drafting engine, which estimates minimum stock geometry and suggests alternative material stock cross-sections and cutting tools based on real-time manufacturing facility data, enabling users to adjust virtual features for optimal production feasibility and cost reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If design-for-manufacturability checks are not integrated into the CAD system, then the system remains simple and easy to use, but material waste increases and production costs rise
Solution Approach 1:
The patent merges the design-for-manufacturability check system with the computer-aided drafting engine by integrating manufacturing facility capability data, tooling availability information, and real-time analysis tools directly into the CAD software. This allows manufacturability assessments to be performed within the existing design workflow without requiring separate external tools or processes.
Solution Approach 2:
The system enables the CAD software to automatically perform manufacturability checks by utilizing its own computational resources and integrated data. The software self-evaluates design features against manufacturing constraints, eliminating the need for external manufacturing engineers to manually review designs and reducing reliance on external analysis tools.
2Manufacturing precision
If real-time manufacturing facility data is integrated into the CAD system, then production costs are reduced through optimized material usage, but the system requires more complex data management and processing capabilities
Solution Approach 1:
The patent implements preliminary action by pre-loading manufacturing facility capability data, tooling availability information, and material properties into the CAD system before the design process begins. This allows the system to immediately evaluate design features against actual manufacturing constraints as they are created, rather than requiring post-design analysis or external data queries.
Solution Approach 2:
The system implements continuous feedback by automatically analyzing design features as they are created in the CAD model and providing real-time notifications to the user. The feedback loop compares design parameters against manufacturing capabilities and tooling availability, suggesting modifications to optimize material usage and reduce production costs while the user is still in the design phase.
3Productivity
If design features are adjusted to match available tooling sizes, then manufacturing efficiency improves, but the design process requires additional iterations and user time
Solution Approach 1:
The system performs preliminary action by pre-identifying the most suitable cutting tools from the manufacturing facility's available tooling inventory that can accommodate each design feature. By calculating optimal tool-to-feature matches in advance and providing recommendations to the user, the system reduces the number of design iterations needed while improving manufacturing efficiency.
4Loss of substance
If manufacturability checks are performed during the design phase, then material waste is reduced, but the design process becomes more complex and time-consuming
Solution Approach 1:
The patent implements continuity of useful action by integrating manufacturability checks directly into the design workflow, allowing design and analysis to occur simultaneously rather than sequentially. As the user creates or modifies design features, the system continuously performs manufacturability assessments, providing immediate feedback without interrupting the design flow or requiring separate analysis phases.
Data Source
AI summary
One variation of a method for implementing design-for-manufacturing checks during construction of a virtual model of a real part includes: in response to insertion of a virtual feature into the virtual model, estimating a minimum stock geometry for the real part based on the virtual feature; selecting a first material stock cross-section from a set of available material stock cross-sections of a material designated for the real part based on the minimum stock geometry; at a first time, prompting a user to adjust a dimension of the virtual feature to enable production of the real part with a second material stock cross-section in the set of material stock cross-sections, less than the first material stock cross-section; at a second time succeeding the first time, submitting, to a manufacturing facility and over a computer network, an order for production of a unit of the real part according to the virtual model.