- Home
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Welcome to the official site of the
North American Deep Drawing Research Group!
The NADDRG is an organization where people working in sheet metal formability
can meet to exchange ideas and follow work that is in progress.
The group meets in the Spring and the Fall and provides an opportunity
to interact with others interested in sheet metal formability.
Meetings consist of informal off-the-record technical presentations
(NOT sales pitches!) followed by questions and discussion.
The next meeting will be held in May 2013 at NIST in Gaithersburg MD
... just outside Washington, DC
More details to follow!
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- Scope
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Topics presented in the informal presentations emphasize experimental work,
analysis or simulation related to experimental work, and solutions to practical problems.
Some idea of topics of interest include:
Analysis of forming problems Die design guidelines Solving plant problems Mechanical tests to predict formability Relationship of product microstructure to formability Measuring friction and the effect of friction on formability New die materials New forming processes Metal property data needed for FEA These topics apply to all to all sheet metal forming processes.
Contributions cover all metals, but the emphasis is on steel and aluminum.
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- Membership
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Becoming a Member of NADDRG
Applicants are accepted as provisional members, and application is encouraged.
Provisional members are expected to make a presentation at a regular meeting within a year of being accepted as a provisional member. This presentation is a requirement to achieve full membership status. These presentations can range in topic from the work of university professors to problem solving techniques and experience by stamping plant personnel.
Once accepted as a member, continued participation is required. Participation can be in the form of informal presentations or helping in the work of the organization.
Click here to contact our Membership coordinator for more information.
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- Bylaws
- Prior Talks
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... Scroll down to see selected talk topics ...
A Microstructural Study on a 6000 Aluminum Sheet Metal Related to Fracture-controlled Forming Limit
A new method for measuring continuous strain distribution in sheet bending and hemming
A Reliability Assessment of a Sample Metal Forming Process Using Monte Carlo Method
Advanced High Strength Steel - What size hammer do we need?
Advanced Material Modeling For Simulation of Hot Stamping Processes
An accelerated method for springback compensation
Analysis of a “Draw Bar”
Application of Optical Techniques for Sheet Metal Forming and Material Characterization
Artifacts and acoustics...Making Sense of Friction Curves
Bake-Hardenability of Multiphase High Strength Sheet Steels
Calibration of Springback for Parts Stamped From Aluminum and Advanced High Strength Steels
Characterization of the hardening behavior for various steel grades
Consideration on Local versus Global Formability
Contribution of Dry Lubricant in Enhancing the Steel Formability
Correlating friction and wear data with production stamping trials
Deformation Induced Residual Stresses in Dual Phase Steels
Describing Springback in Flanging and Channel Dies
Differential Scalar Hardening: A Unique Benefit of Non-associated Flow
Direct Measurement of Multiaxial Stress-Strain Curves in Sheet Metal
Direct Measurement of Yield Surfaces in Sheet Metal
Draw Bending of Laminated Steel
Effects of Patch on Dent Resistance of Closure Steels
Emergence of Technology Needs at Lower Tier Supplier Levels - Some Case Studies
Energy Absorbing Steering Column Design
Evaluation of Flow Stress Models for Clad Sheet Metal
Evolution of Hardening of Mg Az31B
Experimental Characteristics of Stick-slip Phenomena on Sheet Metal
Experimental Comparisons between various Plane Strain Sheet Metal Test Methods
Experimental Set-up for Stress Based Failure Criterion Evaluation
Experimental study of formability in high-rate forming
Fabrication and Characterization of Tubes for Hydroforming Applications
First Order Springback of High Strength Steels
First-order Springback Behavior of Dual Phase Steels
Formability and damage in electromagnetically formed AA5754 and AA6111
Formability of Steel Tubes in Corner Fill Hydroforming
Forming case study of High Strength steel Automotive Part
Forming Limit Assessment for an Anisotropic Metal Under Non-proportional Loading
Forming Limits of DP980
Forming Simulation of Tailor Welded Blank Using Combined Temperature and Blank Holder Force Control
Fracture Based Forming Limit Curves
Fracture-Controlled Forming Limit of Dual Phase Sheet Steels During Small Radius Bending And Hole Expansion
Guidelines for Determination of Forming Limit Diagrams
High Strain Rate and Forming Properties Effect on Crash Performance
History of NADDRG
Hot Forming and Die Quenching of Zn Coated Steel
Hydroforming – From Print to Production
IISI AHSS Guidelines
Implementation of Stress based Forming Limit Diagrams for Tubular Hydroforming
Improvement in Formability of Aluminum Alloys
Improving the formability of steel tubes during Hydroforming through the use of Bending Boost and Hydroforming End-Feed
Influence of Residual Boron on Low Carbon Steel used in Welding Applications
Infrared Temperature and Prediction of Coefficient of Friction
Literature review on laminated steel forming process and its modeling
Manufacturing Issues with AHSS
Material data needs for production stamping FEA
Metal Deformation in Energy Absorbing Steering Columns
Metallurgical Aspects of Some Failure Analysis Studies
Mind Boggling Stress-Strain Curves
Models for Material Damage
New Analytical Solutions for "Corner" Forming Limit Diagram in Tube Hydroforming
New developments in sheet metal forming process control
Non-contact Surface Profilometry to Address Stamping Failures
Nonlinear Friction Modeling in Sheet Metal Forming
On Anvil Effect of Spherical Indentations
Overview of NIST Metal Forming Program
Plastic Instability in Dual Tube Hydroforming Process
Post Stretch for Zero Springback
Practical Limitations to the Influence of Transverse Normal Stress on Sheet Metal Formability
Prediction of Tearing Failure in Dome Height FEA Simulations Using a Stress Based Failure Criterion
Predictive FLD for Rate Sensitive Steels
Preliminary Review of NanoTesting for Evaluating Die Materials
Pressure Effect on Friction and Galling
Recipe for dealing with forming limit assessment using an anisotropic metal
RIK Model for better springback prediction
Robustness of the Flat Bottom Cup Springback Test to Experimental Variations
Shape Control Using Industrial-scale Reconfigurable Tooling
Sharp flanging of aluminum panels using polyurethane inserts
Shear Edge Characterization of Closure Panel Steel Products
Sheet Metal Specifications
Sheet Springback: Numerical Integration Error
Sheet Springback: Prediction and Design
Simulating Advanced High Strength Steels
Simulation of The ASP Corner Fill Test
Smart Machining
Some Preliminary Tensile Data for Magnesium at Elevated Temperature
Some Thoughts on Theoretical Prediction of Forming Limit Diagrams
Springback Modulus for High Strength Steels
Springback Prediction and Resolution for Automotive Stampings
Springback Stresses in Deep Drawn Cups
Springback vs. Material Models
Study of Load Path Optimization for Tube Hydroforming
Study of the Increased Formability of Aluminum Alloy Sheet Formed Using Electromagnetic Forming
Synthesizing the Die Design
The Bauschinger Effect
The Effects of Drawbead Modeling on Springback
The Impact of Forming Processes on Crash Part Properties Including Failure Predictions
The influence of Forming Strains on Elastic Properties
The Influence of the Steel Design in Producing Stamping Parts
Trimming of Advanced High Strength Steel
Trimming of aluminum and steel body panels
Tube Hydroforming Initial Simulation Program
Twist Compression Testing
Volume-Measurement Technique for Obtaining Stress-Strain Curves using the Hydraulic Bulge Expansion Test
Warm Forming of Lightweight Metals
Yield and Loading Surfaces Under Non-proportional Loading
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- Next Meeting
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2013 Fall Meeting:
May 2013, at NIST in Gaithersburg, MD (near Washington, DC).
Click here for more information on how to register for this meeting.
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- Member Companies
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NADDRG Member Companies Alcan Products Corporation Ford Motor Company Ohio State University ALCOA General Motors Corporation Texas A & M University American Iron and Steel Institute Generalety ThyssenKrupp Steel USA Anchor Manufacturing H.L. Blachford Timken Technology Center ArcelorMittal Dofasco Interlaken Hydroforming TribSys ArcelorMittal USA ISATEC United States Steel Bailey Tool & Mfg. Keeler Technologies United States Steel Canada BS Levy Consulting McMaster University University of Colorado-Denver CANMET Metals & Materials Engineers University of Michigan Chrysler LLC National Institute of Standards and Technology University of New Hampshire Colorado School of Mines Northern Illinois University University of Windsor Creative Concepts Company Northwestern University Wayne State University Engineering Quality Solutions 4M Partners Oakland University
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- IDDRG
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Information about the International Deep Drawing Research Group (IDDRG)
can be found on their website: http://www.iddrg.com
IDDRG 2013:
International Deep Drawing Research Group Conference
June 2 to 5, 2013 in Zurich, Switzerland
Click here for more information!
Visit the Conference Website : http://www.iddrg2013.ethz.ch/cms/
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- History
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December 1961 marked the formation of the precursor to the North American Deep Drawing Research Group (NADDRG).
As we celebrate our 50th Anniversary, two of our longest serving members,
Dr. Bernard Levy and Dr. Stuart Keeler,
collaborated in writing a brief synopsis of how the organization started
and how it has evolved.
You can access it by clicking ... here ...
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- Contact Us
Welcome to the official site of the
North American Deep Drawing Research Group!
The NADDRG is an organization where people working in sheet metal formability
can meet to exchange ideas and follow work that is in progress.
The group meets in the Spring and the Fall and provides an opportunity
to interact with others interested in sheet metal formability.
Meetings consist of informal off-the-record technical presentations
(NOT sales pitches!) followed by questions and discussion.
The next meeting will be held in May 2013 at NIST in Gaithersburg MD
... just outside Washington, DC
More details to follow!
Click here for more information on how to register for this meeting.
All the text, graphics, design, software, and other works are the copyrighted works of the North American Deep Drawing Research Group.
All Rights Reserved. Any redistribution or reproduction of any materials herein is strictly prohibited.