Workpiece Nesting Optimization for Material Yield
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Solution Overview
Problem
Conventional manufacturing processes result in inefficiency and waste due to unused portions of workpieces, as component parts are cut without maximizing material yield, leading to suboptimal utilization of materials.
Innovation Solution
A computer-controlled system that identifies workpiece characteristics, nests local and remote parts together to optimize material usage, utilizing a database to find compatible parts that can be cut from unused portions, and presents processing costs for acceptance before cutting, employing tools like plasma cutters or laser cutters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If conventional cutting methods are used to process component parts from a workpiece, then the processing is simple and straightforward, but material yield is not maximized and unused portions are wasted
Solution Approach 1:
The system implements nesting by placing multiple component parts (including local and remote parts) onto the workpiece in an optimized arrangement that maximizes material utilization. The nesting process ensures that parts are positioned to minimize unused portions, with the computer controller calculating optimal placements based on part geometries and workpiece characteristics.
Solution Approach 2:
The system provides multi-functionality by combining local part processing with remote part processing in a single integrated workflow. The computer controller manages both local nesting and remote database queries, allowing the same system to handle multiple job requests from different sources while maximizing material yield from each workpiece.
2Productivity
If unused portions of the workpiece are discarded, then the processing is simple, but material yield is reduced and efficiency is lost
Solution Approach 1:
The system performs preliminary actions by pre-calculating nesting arrangements before actual cutting begins. The computer controller determines the optimal placement of multiple parts on the workpiece in advance, identifying which local and remote parts should be nested together to maximize material yield before the cutting process starts.
Solution Approach 2:
The system implements feedback by continuously evaluating the nesting arrangement and material utilization. The computer controller monitors the workpiece usage and adjusts the nesting plan to ensure maximum material yield, using information about part geometries, material characteristics, and available workpiece areas to optimize the cutting plan.
3Loss of substance
If multiple job requests are processed separately, then each job is handled independently, but material yield is not optimized across different parts
Solution Approach 1:
The system merges multiple job requests by combining local parts with remote parts from the database into a single nested arrangement on the workpiece. The computer controller integrates information from both local and remote sources, creating a unified nesting plan that maximizes material utilization across all parts regardless of their origin.
Solution Approach 2:
The system segments the processing into local and remote components while maintaining integration. Local parts are identified and nested first, then the system queries the remote database for additional parts that can be nested in unused portions, dividing the workflow into manageable segments while achieving overall optimization.
4Loss of substance
If the system queries a remote database for additional parts, then material yield is maximized, but processing time and system complexity increase
Solution Approach 1:
The system performs preliminary actions by pre-querying the remote database for available parts before finalizing the nesting arrangement. This allows the computer controller to identify suitable remote parts in advance and incorporate them into the nesting plan, reducing the need for time-consuming adjustments during the actual cutting process.
Data Source
AI summary
A system and method for processing parts from a workpiece is provided. The method may include identifying characteristics of a workpiece to be processed, nesting, by a computer controller, a first nest pattern of a local first part to be cut out of the workpiece, identifying, by a computer controller, an unused portion of the workpiece not occupied by the first nest pattern, querying, by a computer controller, a remote database to identify a remote second part to be cut, wherein the second part comprises material characteristics corresponding to the characteristics of the workpiece and is nestable in the unused portion of the workpiece, and nesting the local first part and the remote second part on the workpiece.