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Proceedings Papers

In Process Control of Strain in a Stretch Forming Process

D. E. Hardt, W. A. Norfleet, V. M. Valentin, A. Parris
Proc. ASME. IMECE2000, Manufacturing Engineering, 793-803, November 5–10, 2000
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2000-1885
https://doi.org/10.1115/IMECE2000-1885
View Paper titled, In Process Control of Strain in a Stretch Forming Process
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Topics: Aerospace industry, Displacement, Feedback, Force control, Machinery, Manufacturing, Process control, Shapes, Wings
Journal Articles

In Process Control of Strain in a Stretch Forming Process

D. E. Hardt, W. A. Norfleet, V. M. Valentin, A. Parris
Journal: Journal of Engineering Materials and Technology
Publisher: ASME
Article Type: Technical Papers
J. Eng. Mater. Technol. October 2001, 123(4): 496–503.
https://doi.org/10.1115/1.1397780
Published Online: August 10, 2000
View Articletitled, In Process Control of Strain in a Stretch Forming Process
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Topics: Displacement, Force control, Machinery, Stress, Work hardening, Shapes, Process control, Deformation, Modeling, Feedback
Journal Articles

A Comparison of Rapid Fabrication Methods for Sheet Metal Forming Dies

D. F. Walczyk, D. E. Hardt
Journal: Journal of Manufacturing Science and Engineering
Publisher: ASME
Article Type: Research Papers
J. Manuf. Sci. Eng. May 1999, 121(2): 214–224.
https://doi.org/10.1115/1.2831208
Published Online: May 1, 1999
View Articletitled, A Comparison of Rapid Fabrication Methods for Sheet Metal Forming Dies
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Topics: Manufacturing, Sheet metal work, Computer numerical control machine tools, Geometry, Metal stamping, Shapes, Finite element analysis, Lamination, Machining, Pins (Engineering)
Journal Articles

Rapid Tooling for Sheet Metal Forming Using Profiled Edge Laminations—Design Principles and Demonstration

D. F. Walczyk, D. E. Hardt
Journal: Journal of Manufacturing Science and Engineering
Publisher: ASME
Article Type: Research Papers
J. Manuf. Sci. Eng. November 1998, 120(4): 746–754.
https://doi.org/10.1115/1.2830215
Published Online: November 1, 1998
View Articletitled, Rapid Tooling for Sheet Metal Forming Using Profiled Edge Laminations—Design Principles and Demonstration
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Topics: Design, Lamination, Rapid tooling, Sheet metal work, Manufacturing, Tooling, Machining, Machinery, Computer numerical control machine tools, Construction
Journal Articles

Real-Time Control of Sheet Stability During Forming

D. E. Hardt, R. C. Fenn
Journal: Journal of Manufacturing Science and Engineering
Publisher: ASME
Article Type: Research Papers
J. Manuf. Sci. Eng. August 1993, 115(3): 299–308.
https://doi.org/10.1115/1.2901664
Published Online: August 1, 1993
View Articletitled, Real-Time Control of Sheet Stability During Forming
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Topics: Real-time control, Stability, Trajectories (Physics), Buckling, Blanks, Compressive stress, Corners (Structural elements), Errors, Failure, Friction
Journal Articles

A Model of the Sequential Bending Process for Manufacturing Simulation

D. E. Hardt, E. Constantine, A. Wright
Journal: Journal of Manufacturing Science and Engineering
Publisher: ASME
Article Type: Research Papers
J. Manuf. Sci. Eng. May 1992, 114(2): 181–187.
https://doi.org/10.1115/1.2899770
Published Online: May 1, 1992
View Articletitled, A Model of the Sequential Bending Process for Manufacturing Simulation
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Topics: Manufacturing, Simulation, Algorithms, Aluminum, Automatic control, Brass (Metal), Design, Geometry, Plates (structures), Process control
Journal Articles

Application of Adaptive Control Theory to On-Line GTA Weld Geometry Regulation

A. Suzuki, D. E. Hardt, L. Valavani
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. March 1991, 113(1): 93–103.
https://doi.org/10.1115/1.2896365
Published Online: March 1, 1991
View Articletitled, Application of Adaptive Control Theory to On-Line GTA Weld Geometry Regulation
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Topics: Adaptive control, Geometry, Control equipment, Sound transmission class, Welding, Engineering simulation, Feedback, Filtration, Materials properties, Noise (Sound)
Journal Articles

A Transfer Function Description of Sheet Metal Forming for Process Control

R. D. Webb, D. E. Hardt
Journal: Journal of Manufacturing Science and Engineering
Publisher: ASME
Article Type: Research Papers
J. Manuf. Sci. Eng. February 1991, 113(1): 44–52.
https://doi.org/10.1115/1.2899621
Published Online: February 1, 1991
View Articletitled, A Transfer Function Description of Sheet Metal Forming for Process Control
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Topics: Process control, Sheet metal work, Transfer functions, Deformation, Design, Shapes, Sheet metal, Stability, Tooling
Journal Articles

Weld Pool Impedance for Pool Geometry Measurement: Stationary and Nonstationary Pools

A. S. Tam, D. E. Hardt
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. December 1989, 111(4): 545–553.
https://doi.org/10.1115/1.3153090
Published Online: December 1, 1989
View Articletitled, Weld Pool Impedance for Pool Geometry Measurement: Stationary and Nonstationary Pools
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Topics: Geometry, Welded joints, Dynamics (Mechanics), Eigenvalues, Feedback, Mechanical impedance, Membranes, Mode shapes, Modeling, Oscillations
Journal Articles

A Model for In-Process Control of Thermal Properties During Welding

C. C. Doumanidis, D. E. Hardt
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. March 1989, 111(1): 40–50.
https://doi.org/10.1115/1.3153017
Published Online: March 1, 1989
View Articletitled, A Model for In-Process Control of Thermal Properties During Welding
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Topics: Thermal properties, Welding, Simulation, Boundary-value problems, Cooling, Dynamics (Mechanics), Geometry, Heat, Materials properties, Process control
Journal Articles

Control of a Sequential Brakeforming Process

D. E. Hardt, B. Chen
Journal: Journal of Manufacturing Science and Engineering
Publisher: ASME
Article Type: Research Papers
J. Manuf. Sci. Eng. May 1985, 107(2): 141–145.
https://doi.org/10.1115/1.3185977
Published Online: May 1, 1985
View Articletitled, Control of a Sequential Brakeforming Process
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Topics: Dimensions, Errors, Materials properties, Optimization, Shapes
Journal Articles

A Model of Full Penetration Arc-Welding for Control System Design

D. E. Hardt, D. A. Garlow, J. B. Weinert
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. March 1985, 107(1): 40–46.
https://doi.org/10.1115/1.3140705
Published Online: March 1, 1985
View Articletitled, A Model of Full Penetration Arc-Welding for Control System Design
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Topics: Arc welding, Control systems, Design, Heat, Adaptive control, Control equipment, Dynamics (Mechanics), Frequency response, Gas tungsten arc welding, Temperature
Journal Articles

A Real-Time Calibrated Thermal Model for Closed-Loop Weld Bead Geometry Control

B. E. Bates, D. E. Hardt
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. March 1985, 107(1): 25–33.
https://doi.org/10.1115/1.3140703
Published Online: March 1, 1985
View Articletitled, A Real-Time Calibrated Thermal Model for Closed-Loop Weld Bead Geometry Control
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Topics: Errors, Geometry, Heat conduction, Temperature, Welded joints
Journal Articles

Active Control of Robot Structure Deflections

A. Zalucky, D. E. Hardt
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. March 1984, 106(1): 63–69.
https://doi.org/10.1115/1.3149665
Published Online: March 1, 1984
View Articletitled, Active Control of Robot Structure Deflections
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Topics: Deflection, Robots, Engineering prototypes, Actuators, Control systems, Engineering simulation, Knudsen number, Manipulators, Servomechanisms, Simulation
Journal Articles

Weld Pool Impedance Identification for Size Measurement and Control

M. Zacksenhouse, D. E. Hardt
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. September 1983, 105(3): 179–184.
https://doi.org/10.1115/1.3140652
Published Online: September 1, 1983
View Articletitled, Weld Pool Impedance Identification for Size Measurement and Control
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Topics: Control systems, Electric arcs, Simulation results, Size measurement, Welded joints
Journal Articles

A Method for In-Process Failure Prediction in Cold Upset Forging

O. Ettouney, D. E. Hardt
Journal: Journal of Manufacturing Science and Engineering
Publisher: ASME
Article Type: Research Papers
J. Manuf. Sci. Eng. August 1983, 105(3): 161–167.
https://doi.org/10.1115/1.3185883
Published Online: August 1, 1983
View Articletitled, A Method for In-Process Failure Prediction in Cold Upset Forging
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Topics: Failure, Forging, Stress, Compression, Ductile fracture, Flow (Dynamics), Necking
Journal Articles

Closed-Loop Shape Control of a Roll-Bending Process

D. E. Hardt, M. A. Roberts, K. A. Stelson
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. December 1982, 104(4): 317–322.
https://doi.org/10.1115/1.3139715
Published Online: December 1, 1982
View Articletitled, Closed-Loop Shape Control of a Roll-Bending Process
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Topics: Shapes, Control equipment, Control systems, Materials properties, Stiffness
Journal Articles

Determining Muscle Forces in the Leg During Normal Human Walking—An Application and Evaluation of Optimization Methods

D. E. Hardt
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. May 1978, 100(2): 72–78.
https://doi.org/10.1115/1.3426195
Published Online: May 1, 1978
View Articletitled, Determining Muscle Forces in the Leg During Normal Human Walking—An Application and Evaluation of Optimization Methods
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Topics: Muscle, Optimization, Linear programming, Torque, Algorithms, Cycles, Degrees of freedom, Modeling, Transducers