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INTELLIGENT TOOLING
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Progress Review Introduction Updated Customers/Wants/Constraints Metrics Benchmarking Concept Evaluation Schedule
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Project Summary
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Background Powder Metallurgy Semi-finished product Metal working Foaming Material Properties
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Problem Description Over-aging Technicians rely upon experience Material waste Molding defects
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Customers Fraunhofer Resource Center, DE Automotive Industry Aerospace Industry Building Industry
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Prioritized Wants 1) High Percentage of Successful Foams 2) System Reliability 3) Simplicity of System 4) Low Cost
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Constraints Operating Temperature - 1400 C Oven Size Cost - $8000 LabVIEW Interface
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Metrics
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System Benchmarking High Speed Temperature and Process Signal Measurement System Bricesco Pyrotrace Material Level Monitoring System Die Casting Injection Molding
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Temperature & Process Signal Measurement System System Includes: - Sensors - “Black Box” - Voltage Input - Digital Output - Software and user interface
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Temperature & Process Signal Measurement System Advantages: - Only one signal altering device - Low setup time - Cost ($2000) Disadvantages: - Interface is not LabVIEW
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Bricesco Pyrotrace Designed for kilns Monitors temperature Presents data in graphs Uses a software package called Pyrographics
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Bricesco Pyrotrace Advantages according to Metrics –Small # of signal alterations - 0 –Max operating temperature - 1350 C –Programming time Disadvantages according to Metrics –Set up time - thermocouple attachment –Cost - High ($6000) –Doesn’t use LabVIEW
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Functional Benchmarking Sensors Circuit Completion Piezo-electric Transducer Thermocouple Optical Fiber Linear Position
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Concept Evaluation 1) Electrical Circuit Completion 2) Piezo-electric Transducer
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Electrical Circuit Completion
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Electrodes are isolated by ceramic material on side and top of mold. Metal foam rises to touch top electrode Foam acts as a medium to conduct current. Advantages – Simple program to interpret signal –Small size –Low cost - $1000 –Low set-up time Disadvantages –Mold alterations
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Piezo-electric Transducer
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One-component quartz force sensor Deformation of sensor disrupts dipole orientation Temporary excess of surface charge seen as a voltage drop across crystal
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Piezo-electric Transducer Advantages –Small size –Minimum mold alterations Disadvantages –Requires large charge amplifier –Complex programming to interpret signal –High cost - $5000 –Calibration time required
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Proposal Presentation
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Preliminary Design and Progress Review
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November 98 - Spring 99
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Conclusion Continue research on concept components Work more closely with resources at Fraunhofer Purchase system components before winter break
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