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Issues and Trends in Automotive Aluminum Sheet Forming
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Abstract
Aluminum sheet forming is entering an era where rapid advances in technology are likely. Combining increased understanding of material behavior, increased understanding of metalworking tribology and improved control of sheet forming processes will result in improved distribution of strain, allowing more complex components to be formed and greater design flexibility. New process control techniques will be developed and implemented to result in improved press actions, control of strain path to effect increased formability and reduced sensitivity to process variables. Improved techniques for assessing producibility and for generating effective tool designs will be developed, perhaps eliminating the need for soft tool tryouts to substantially reduce the total die development time and cost. In this review paper, each of these issues will be discussed. In addition, the major differences between aluminum and steel in sheet forming processes will be highlighted, aluminum formability data will be presented and the critical forming-related technical barriers existing today to the application of aluminum sheet will be identified.
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Story, J., Jarvis, G., Zonker, H., and Murtha, S., "Issues and Trends in Automotive Aluminum Sheet Forming," SAE Technical Paper 930277, 1993, https://doi.org/10.4271/930277.Also In
References
- Lightweight Metals Alternatives in the Automotive Industry Society of Manufacturing Engineers Plymouth, MI June 4-5 1990
- Aluminum and Autobody Structure Institute of Metals London, England October 2 1991
- “Aluminum Sheet in the Automobile,” Aluminum Industry 9 5 1990 31 34
- Springe G. Neuere Entwicklungen in der Blechumformung 1992 65 75
- Takahashi A. Okamoto I. Hiramatsu T. Yamada N. “Evaluation Methods of Press Forming Severity in CAD Applications,” Computer Modeling of Sheet Metal Forming Processes; Theory, Verification and Application , Conference Proceedings Ann Arbor, MI Wang N. M. Tang S. C. TMS 1985 37 50
- Okamoto I. Takahashi A. Sugiura H. Yamada N. Mori T. “Computer Aided Design and Evaluation System for Stamping Dies at Toyota,” Advances and Trends in Automotive Sheet Steel Stamping , SAE Publication No. P-206 1988 79 89
- Liu S.-D. Karima M. “On a Geometric Based Mechanistic Program for Tooling Contact Analysis of Stampings,” Autobody Stamping Technology Progress SAE 1991 159 173
- Umformtechnik: Handbuch für Industry und Wissenschaft Springer-Verlag 1990 414 425
- Chen K.-K. Waugh T. G. “Applications of a Binder Wrap Calculation Model to Layout of Sheet Steel Forming Dies,” Recent Developments in Autobody Stamping Technology , SAE Publication No. SP-825 1990 25 32
- Chen K.-K. “A New Finite Element Method for Binder Wrap Calculations,” J. Materials Shaping Technology 5 2 1987 107 116
- Chen K.-K. “A Binder Wrap Calculation Procedure for Sheet Metal Formability Analysis,” Materials in Manufacturing Processes Kiefer B. V. Gavigan J. Ni C. M. ASME 1988 1 8
- Chen K.-K. Rechenbach W. S. Vadhavkar A. V. Assiff T. C. “A Binder Wrap Evaluation Method for a Class of Sheet Metal Forming Dies,” Proc. Manufacturing International '88 Chryssolouris G. Komanduri, R ASME 1988 181 188
- Mital N. K. “Prediction of Binder Wrap In Sheet Metal Stampings Using Finite Element Method,” Proc. Int. Conf. Computers in Engineering ASME 1983 71 77
- Tang S. C. “Verification and Application of Binder Wrap Analysis,” Computer Modeling of Sheet Metal Forming Processes; Theory, Verification and Application , Conference Proceedings Ann Arbor, MI Wang N. M. Tang S. C. TMS 1985 193 208
- Tang S. C. “Computer Prediction of the Deformed Shape of a Draw Blank During the Binder-Wrap Stage,” J. Applied Metalworking 1 3 1980 22 29
- Tang S. C. “Finite Element Prediction of the Deformed Shape of an Automobile Trunk Deck-Lid During the Binder-Wrap Stage,” Experimental Verification of Process Models Chen C. C. ASM 1981 189 203
- Tang S. C. Chu E. Samanta S. “Finite Element Prediction of the Deformed Shape of Automobile Body Panels During Preform Stage,” Numerical Methods in Industrial Forming Processes Pittman Wood Alexander Zienkiewicz 1982 629 640
- Kienzle S. Neuere Entwicklungen in der Blechumformung 1992 343 367
- Siegert K. Kienzle S. 124 11 1991 899 902
- Wang N. M. “A Mathematical Model of Drawbead Forces in Sheet Metal Forming,” J. Appl. Metalworking 2 3 1983 193
- Yellup “Modeling of Sheet Metal Flow ILLEGIBLEugh a Drawbead,” Proc. Thirteenth Biennial Congress of the International Deep Drawing Research Group 1984 166 177
- Sanchez L. R. Story J. M. Weinmann K. J. “The Effect of Drawbead Geometry and Friction on Tool Pick-Up in the Forming of Aluminum Sheet,” Proceedings Symposium on Metal Transfer and Galling Orlando TMS-AIME 1987
- Sanchez L. R. Weinmann K. J. “A General Computer Model for Plane Strain Sheet Flow and Its Application to Flow Between Circular Drawbeads,” Controlling Sheet Metal Forming Processes , Proc. 15th Biennial Congress IDDRG 1988 217 226
- Stoughton T. B. “Model of Drawbead Forces in Sheet Metal Forming,” Proc. 15th Biennial Congress IDDRG 1988 205 215
- Levy B. S. “Development of a Predictive Model for Drawbead Restraining Force Utilizing Work of Nine and Wang,” J. Appl. Metalworking 3 1 1983 38 44
- Levy B. S. “Modeling Binder Restraint Using Parametric Models Based on Mechanistic Considerations,” Computer Modeling of Sheet Metal Forming Processes; Theory, Verification and Application , Conference Proceedings Ann Arbor, MI Wang N. M. Tang S. C. TMS 1985 177 191
- Nine H. D. “Drawbead Forces in Sheet Metal Forming,” Mechanics of Sheet Metal Forming , Proc. Int. Symposium 1978 179 207
- Nine H. D. “The Applicability of Coulomb's Friction Law to Drawbeads in Sheet Metal Forming,” J. Appl. Metalworking 2 3 1982 200 210
- Karima M. Tse W. “Formability and Uniformity Aspects in Drawbead Controlled Geometries,” Journal of Materials Shaping Technology 6 3 1989 181
- Cao H.-L. Teodosiu C. “Numerical Simulation of Drawbeads for Axisymmetric Deep Drawing Process,” Numerical Methods in Industrial Forming Processes Chenot J.-L. Wood R. D. Ziekiewicz O. C. 1992 439 448
- Chabrand P. Dubois F. “Influence of the Drawbead on the Blankholder Restraining Forces,” Numerical Methods in Industrial Forming Processes Chenot J.-L. Wood R. D. Ziekiewicz O. C. 1992 449 454
- Wolff N. P. “Interrelation Between Part and Die Design for Aluminum Auto Body Panels,” SAE Technical Paper 780392 1978
- Chu E. Soper D. Gloeckl H. Gerdeen J. C. “Computer-Aided Geometric Simulation of Sheet Metal Forming Processes,” Computer Modeling of Sheet Metal Forming Processes; Theory, Verification and Application , Conference Proceedings Ann Arbor, MI Wang N. M. Tang S. C. TMS 1985 65 76
- Higashi, M. Mori T. Taniguchi H. Yoshimi J. “Geometric Modeling for Efficient Evaluation of Press Forming Severity,” Computer Modeling of Sheet Metal Forming Processes; Theory, Verification and Application , Conference Proceedings Ann Arbor, MI Wang N. M. Tang S. C. TMS 1985 21 35
- Assempoor A. Karima M. “Interaction of Part Geometry and Material Properties with Forming Severity and Tooling Design for Box Shaped Stampings,” Autobody Stamping Applications and Analysis SAE 1992 105 113
- Walker T. Kolodziejski J. Karima M. “Using Axisymmetric Solutions to Estimate the Forming Severity of Three-Dimensional Metal Stampings,” Autobody Stamping Applications and Analysis SAE 1992 161 172
- Liu S. D. Karima M. “On a One-Step Finite Element Approach for a Closer Interface Between Product Design and Manufacturing Feasibility,” Autobody Stamping Applications and Analysis SAE 1992 183 192
- Aita S. El Khaldi F. Fontaine L. Tamada T. Tamura E.- “Numerical Simulation of a Stretch Drawn Autobody: Part I - Assessment of Simulation Methodology and Modeling of Stamping Components,” Autobody Stamping Applications and Analysis SAE 1992 193 205
- Aia S. El Khaldi F. Fontaine L. Tamada T. Tamura E.- “Numerical Simulation of a Stretch Drawn Autobody: Part II - Validation Versus Experiments for Various Holding and Drawbead Conditions,” Autobody Stamping Applications and Analysis SAE 1992 207 219
- Tang S. C. Chappuis L. B. Matke J. “A Quasistatic Analysis of Forming Processes for Automotive Panels,” FE-Simulation of 3-D Sheet Metal Forming Processes in Automotive Industry 1991 247 258
- Haug E. Di Pasquale E. Pickett A. K. Ulrich D. “Industrial Sheet Metal Forming Simulation Using Explicit Finite Element Methods,” FE-Simulation of 3-D Sheet Metal Forming Processes in Automotive Industry 1991 259 291
- Aoh H. Nakamachi E. “3-D Sheet Metal Forming Simulation of Automobile Panel by Thin Sheet Finite Element Method,” FE-Simulation of 3-D Sheet Metal Forming Processes in Automotive Industry 1991 357 379
- Galbraith P. C. Finn M. J. MacEwen S. R. Carr A. R. Gatenby K. M. Lin T. L. Clifford G. A. Hallquist J. O. Stillman D. “Evaluation of an LS-DYNA 3-D Model for Deep Drawing of Aluminum Sheet,” FE-Simulation of 3-D Sheet Metal Forming Processes in Automotive Industry 1991 441 466
- Hillmann M. Kabisch A. Fuchs F. El Rifai Kassem K. Mathiak F. Sünkel R. “A Highly Vectorized FE Program for Sheet Metal Forming Simulation for the Automotive Industry,” FE-Simulation of 3-D Sheet Metal Forming Processes in Automotive Industry 1991 549 567
- Gröber M. Gruber K. “Numerical Simulation of Sheet Metal Forming of Large Car Body Components,” FE-Simulation of 3-D Sheet Metal Forming Processes in Automotive Industry 1991 587 600
- Teodosio C. Cao H. C. Ladreyt T. Detraux J. M. “Implicit versus Explicit Methods in the Simulation of Sheet Metal Forming,” FE-Simulation of 3-D Sheet Metal Forming Processes in Automotive Industry 1991 601 627
- Nagtegaal J. C. Taylor L. M. “Comparison of Implicit and Explicit Finite Element Methods for Analysis of Sheet Forming Problems,” FE-Simulation of 3-D Sheet Metal Forming Processes in Automotive Industry 1991 705 725
- Chung K. Richmond O. “Sheet Forming Process Design Based on Ideal Forming Theory,” Numerical Methods in Industrial Forming Processes Chenot J.-L. Wood R. D. Ziekiewicz O. C. 1992 455 460
- El Rifai Kassem K. Fuchs F. Hillmann M. Kabisch A. Mathiak F. U. Sünkel R. Stalmann A. “Mathematical Modeling of the Sheet Forming Process with INDEED,” Numerical Methods in Industrial Forming Processes Chenot J.-L. Wood R. D. Ziekiewicz O. C. 1992 461 466
- Guo Y. Q. Batoz J. L. El Mouatassim M. Detraux J. M. “On the Estimation of Thickness Strains in Thin Car Panels by the Inverse Method,” Numerical Methods in Industrial Forming Processes Chenot J.-L. Wood R. D. Ziekiewicz O. C. 1992 467 472
- Kawka M. Makinouchi A. “Finite Element Simulation of Sheet Metal Forming Processes by Simultaneous Use of Membrane, Sheet and Solid Elements,” Numerical Methods in Industrial Forming Processes Chenot J.-L. Wood R. D. Ziekiewicz O. C. 1992 491 496
- Liu S.-D. Karima M. “A One-Step Finite Element Approach for Product Design of Sheet Metal Stampings,” Numerical Methods in Industrial Forming Processes Chenot J.-L. Wood R. D. Ziekiewicz O. C. 1992 497 502
- Massoni E. Chenot J.-L. “3-D Finite Element Solution of Deep Drawing Process,” Numerical Methods in Industrial Forming Processes Chenot J.-L. Wood R. D. Ziekiewicz O. C. 1992 503 507
- Nakamachi E. “Anisotropic Elastic-Plastic Finite Element Simulation of 3-D Sheet Forming Processes,” Numerical Methods in Industrial Forming Processes Chenot J.-L. Wood R. D. Ziekiewicz O. C. 1992 509 514
- Sklad M. P. Yungblud B. A. “Analysis of Multi-Operation Sheet Forming Processes Numerical Methods in Industrial Forming Processes Chenot J.-L. Wood R. D. Ziekiewicz O. C. 1992 543 547
- Tang S. C. “Application of Membrane Theory to Automotive Sheet Metal Forming Analysis,” Numerical Methods in Industrial Forming Processes Chenot J.-L. Wood R. D. Ziekiewicz O. C. 1992 549 554
- Aita S. Haug E. El Khaldi F. Lefebvre D. Di Pasquale E. “Industrial Products Formability Analysis Using 3D Sheet Metal Forming Simulation,” Numerical Methods in Industrial Forming Processes Chenot J.-L. Wood R. D. Ziekiewicz O. C. 1992 571 579
- Chu E. Shah K. N. Pourboghrat F. Chandorkar K. “The Development/Application of Sheet Metal Forming Technology at Alcoa,”
- Assempoor A. Karima M. “Blank Development and Metal Flow Analysis for Multi-Stage Drawing of Box Shaped Sections,” Autobody Stamping Technology Progress SAE 1991 67
- Jimma T. Kuwabara T. “Deep Drawing of Shells with Bi-Level Bottoms,” Advanced Technology of Plasticity II 1987 1159 1164
- Chung K. Richmond O. “Ideal Forming, Part I: Homogeneous Deformation with Minimum Plastic Work,” International Journal of Mechanical Sciences
- Chung K. Richmond O. “Ideal Forming, Part II: Sheet Forming with Most Uniform Deformation,” International Journal of Mechanical Sciences
- Chung K. Richmond O. “A Deformation Theory of Plasticity Based on Minimum Work Paths,” International Journal of Plasticity
- Chung K. Richmond O. “The Mechanics of Ideal Forming,” Journal of Applied Mechanics
- Liu F. Sowerby R. “The Determination of Optimum Blank Shapes When Deep Drawing Prismatic Cups,” Journal of Materials Shaping Technology 9 3 1991 153 159
- Doege E. Sommer N. “Blank-Holder Pressure and Blank-Holder Layout in Deep Drawing of Thin Sheet Metal,” Advanced Technology of Plasticity Vol. II Lange K. Springer-Verlag 1987 1305 1314
- Siegert K. Neuere Entwicklungen in der Blechumformung 1992 307 329
- Klamser M. Neuere Entwicklungen in der Blechumformung 1992 391 417
- Schneider F. 1991 111 133
- “Blanking and Piercing of Steel Sheet, Strips and Plate,” ASM International, Metals Handbook Ninth 14 Forming and Forging 1988 443 486
- “Shearing, Slitting and Cutting,” ASM International, Metals Handbook Ninth 14 Forming and Forging 1988 699 756
- “Forming of Aluminum Alloys,” ASM International, Metals Handbook Ninth 14 Forming and Forging 1988 791 804
- “Sheet Metal Blanking and Forming,” Society of Manufacturing Engineers Tool and Manufacturing Engineers Handbook Fourth II Forming 1984 4.1 4.48
- “Presses for Sheet Metal Forming,” Society of Manufacturing Engineers Tool and Manufacturing Engineers Handbook Fourth II Forming 1984 5.1 5.90
- “Die Design for Sheet Metal Forming,” Society of Manufacturing Engineers Tool and Manufacturing Engineers Handbook Fourth II Forming 1984 6.1 6.58
- “Shearing,” Society of Manufacturing Engineers Tool and Manufacturing Engineers Handbook Fourth II Forming 1984 11.1 11.21
- “Forming and Machining Aluminum,” The Aluminum Association 1989
- “Cutting, Piercing Blanking and Fine Blanking,” Sheet Metal Forming Technology, Course 21 - Lesson 1 ASM International April 1979
- Duncan J. L. Bird J. E. “Approximate Calculations for Draw Die Forming and Their Application to Aluminum Alloy Sheet,” Sheet Metal Forming and Formability , Proc. 10th Biennial IDDRG Congress 1978 45 52
- Wenner M. L. “On Work Hardening and Springback In Plane Strain Draw Forming,” Journal of Applied Metalworking 2 1983 277 287
- Liu Y. C. “The Effect of Restraining Force on Shape Deviations in Flanged Channels,” Journal of Engineering Materials and Technology 110 1988 389 394
- Mickalich M. K. Wenner M. L. “Calculation of Springback and Its Variation in Channel Forming Operations,” Advances and Trends in Automotive Sheet Steel Stamping , SAE Publication No. P-206 1988 91 99
- Chu C.-C. “The Analysis of Side-Wall Curl,” Controlling Sheet Metal Forming Processes , Proc. 15th Biennial IDDRG Congress Dearborn, MI ASM 1988 227 230
- Davies R. G. “Side Wall Curl in High-Strength Steel,” Journal of Applied Metalworking 3 2 1984 120 126
- Ayres R. A. “SHAPESET: A Process to Reduce Sidewall Curl Springback in High-Strength Steel Rails,” Journal of Applied Metalworking 3 2 1984 127 134
- Gerdeen J. C. Duncan J. L. “Springback in Sheet Metal Forming,” Report on AISI Project No. 1201-456 1986
- Karafillis A. P. Boyce M. C. “Tooling Design in Sheet Metal Forming Using Springback Calculations,” International Journal of Mechanical Sciences 34 2 113 131
- Shimomura T. Yoshida M. “Study of Surface Deflection in Door Outer Panel,” Efficiency in Sheet Metal Forming ,” Proceedings 13th Biennial Congress IDDRG 1984 46 53
- Satoh T. Amaike T. Tokunaga Y. Takizawa H. Ujihara S. “A Study of the Growth Mechanism and Removal Techniques of Surface Deflection Observed in Autobody Outer Panels,” Efficiency in Sheet Metal Forming ,” Proc. 13th Biennial Congress IDDRG 1984 54 61
- Hayashi Y. Takatani M. “New Forming Method for Avoiding Geometrical Defects of Outer Auto Body Panels,” Efficiency in Sheet Metal Forming ,” Proc. 13th Biennial Congress IDDRG 1984 565 580
- Yoshida K. Komorida H. Usuda M. Hayashi H. Oikawa H. Ohwue T. Amaike T. “Analysis and Control of Buckling Behavior Due to Elastic Recovery in Press Forming,” Efficiency in Sheet Metal Forming ,” Proc. 13th Biennial Congress IDDRG 1984 73 84
- Abe H. Hira T. Sasaki T. Nakagawa K. “Analysis of Buckling and Fitting Behavior in Press Forming of Cold Rolled Steel Sheets,” Proc. 12th Biennial Congress IDDRG 1982 231 241
- Ishigaki H. Nakagawa N. Arima K. “Analysis of Fitting Behavior and Fittability in Press Forming of Large-Sized Autobody Panels,” Proc. 12th Biennial Congress IDDRG 1982 265 276
- Ishigaki H. “Fittability Analysis in Press Forming of Large-Sized Autobody Panels,” Formability of Metallic Materials - 2000 A.D. , ASTM STP 753 Newby J. Niemeier B. ASTM 1980 159 176
- Ishigaki H. “Deformation Analysis of Large Sized Panels in the Press Shop,” Mechanics of Sheet Metal Forming Koistinen D. P. Wang N. M. Plenum Press 1978 315 338
- Ishigaki H. Umehara Y. Okamoto I “Analysis of Surface Deformation Defects in the Press Forming of Large Size Autobody Panels,” Sheet Metal Forming and Formability , Proc. 10th Biennial Congress IDDRG 1978 53 66
- Kunitake K. Kodama A. Kudo M. Nagamitsu T. Hashimoto K. Takita M. “Influence of Forming Condition and Panel Surface Stiffness on Shape Fixability and Surface Distortion,” Sheet Metals in Forming Processes , Proc. 16th Biennial Congress IDDRG 1990 9 16
- Tozawa Y. “Forming Technology for Raising the Accuracy of Sheet Formed Products,” Journal of Materials Processing Technology 22 1990 343 351
- Umehara Y. “Technologies for the More Precise Press-Forming of Automobile Parts,” Journal of Materials Processing Technology 22 1990 239 256
- Sa C.-Y. “Quality Improvement of an Automotive Fender,” Recent Developments in Autobody Stamping Technology , SAE Publication No. SP-825 1990 43 52
- Keer T. J. Sturt R. M. V. “Sheet Metal Pressings - The Integration of Finite Element Analysis within the Design Process,” Autobody Stamping Technology Progress , SAE Publication SP-865 1991 187 192
- Bull M. J. Carr A. R. Payne P. Suffell C. “The Application of a Knowledge Based CAD System to Press Tool Design,” SAE Paper No. 900797 1990
- Bull M. J. Morrison J. R. “The Development of a Knowledge Based CAD System for Press Die Design,” 1991 629 645
- Hardt D. E. Lee C. G. Y. “Closed-Loop Control of Sheet Metal Stability During Stamping,” Proc. NAMRC-XIV Minneapolis 1986 315 322
- Hardt D. E. Boyce M. C. Fenn R. P. “Real-Time Control of Binder Force During Stamping,” Sheet Metals in Forming Processes, Proc. Sixteenth Biennial Congress of the International Deep Drawing Research Group Borlange, Sweden 1990 17 28
- Sim H. B. Boyce M. C. “A Finite Element Analysis of Real-Time Sheet Forming Stability Control in Cup Forming,” Journal of Engineering Materials and Technology 114 2 1992 180 188
- Jalkh P. Cao J. Hardt D. E. Boyce M. C. “Optimal Forming of Aluminum 2008-T4 Conical Cups Using Force Trajectory Control,”
- ABAQUS User's Manual, Theory Hibbitt, Karlsson and Sorensen, Inc. Providence, RI 1988
- Ahmetoglu M. A. Altan T. Kinzel G. L. “Improvement of Part Quality in Stamping by Controlling Blankholder Force and Pressure,” Journal of Material Processing Technology 33 1992 196 214
- Siegert K. Klamser M. Siegert K. 41
- Siegert K. Klamser M. Straube O. Fertigungstechnik 1990 416 420
- Kergen R. Jodogne P. “Computerized Control of the Blankholder Pressure on Deep Drawing Processes,” Autobody Stamping Applications an Analysis , SAE SP-897 1992 51 56
- Blümel K. Hartmann G. Heldbüchel P. “Computer Driven Variable Blankholder,” IDDRG Working Group 1 1991
- Hishida Y. Ujihara S. Sano A. Hirose Y. Kojima M. “Development of a New Press Forming Method Using Blank Holding Force Controlling System (Part 2),” Proceedings of the 41st Joint Conference for the Technology of Plasticity 1990 27 30
- Hirose Y. Hishida Y. Furubayashi T. Kojima M. Ujihara S. “Techniques for Controlling Wrinkles by Controlling the Blank Holding Force,” Proc. 4th Symposium of the Japanese Society for the Technology of Plasticity 1990
- Hirose Y. Hishida Y. Furubayashi T. Kojima M. Ujihara S. “Application of BHF-Controlled Forming Techniques,” Proc. 4th Symposium of the Japanese Society for the Technology of Plasticity 1990
- Hishida Y. Wagoner R. H. “Experimental Analysis of Blank Holding Force Control in Sheet Forming,”
- Saran M. J. “Computer Aided Simulation to Predict and Eliminate Defects in Sheet Stamping,” Practical Sheet Metal Parts Design Livonia, MI SME September 30 1992
- Klamser M. Neuere Entwicklungen in der Blechumformung 1992 391 417
- Odell E. I. “Analysis and Design of a Variable Position Minimum Pressure Blankholder System for Axisymmetric Deep Drawing,” Int. J. Mach. Tool Des. Res. 17 1977 77 90
- Emmens W. C. “Material Savings by Using Variable Blankholding Force,” IDDRG Working Group 1 1985
- Thiruvarudchelvan S. Lewis W. G. “Deep Drawing with Blank Holder Force Approximately Proportional to the Punch Force,” J. Engineering for Industry 112 1990 278 285
- Hardt D. E. Boyce M. C. Fenn R. C. Sim H. B. “Enhanced Sheet Forming Using Real Time Control of Blankholder Force,” Sheet Metal 1992 Shirvani B. Baggs D. R. H. 1992 249 260
- Story J. M. Trageser A. B. Smith, G. L. Jr. “Blankholder for a Draw Press,” May 24 1988
- Wefers K. “Properties and Characterization of Surface Oxides on Aluminum Alloys,” Aluminium 57 11 1981 722 726
- McNamara P. “Surfaces of Aluminum Autobody Alloys,” Technological Impact of Surfaces: Relationship to Forming, Welding and Painting ,” ASM 1982 103 126
- Overfelt R. A. Wert J. J. Hunt, W. H. Jr. “The Influence of Thermal Oxide Characteristics on the Friction of Aluminum Auto Body Sheet Alloys,” ILLEGIBLE Trans. 24 2 1981 175 183
- Overfelt ILLEGIBLE Wert J. J. Hunt, W. H. Jr. “The Role of Oxides on Surface Friction of Aluminum Auto Body Sheet Alloys,” Lubrication Challenges in Metalworking and Processing IIT Research Institute 1979 115 122
- Edwards W. T. Wert J. J. Bhargava V. Wefers K. Hunt, W. H. Jr. “The Influence of Surface Oxide Characteristics on the Friction Behavior of Aluminum and Aluminum Alloys,” Wear of Materials ASME 1981 23 30
- Andersson B. “The Influence of Surface Topography on the Forming Performance of Aluminum,” Efficiency in Sheet Metal Forming ,” Proc. 13th Biennial Congress IDDRG 1984 467 475
- Story J. M. Weinmann K. J. “The Effects of Surface Topography and Surface Chemistry on Metal Build-Up on the Tools During the Forming of Aluminum Sheet,” Proceedings NAMRC-VIII 1980 245 251
- Balbach R. Optimierung der Oberflächenmikrogeometrie von Aluminiumfeinblech für das Karosserieziehen Springer-Verlag 1988
- Defourny J. A. Leroy V. M. Nilles P. E. “Update of Developments in Lasertex Technology,” Iron and Steel Engineer August 1991 39 45
- Dolves J. “Electron Beam Texturing of Rolls,” Iron and Steel Engineer August 1991 33 38
- El-Menshawy F. Snaith B. “Advances in Electro-Discharge Texturing (EDT) for Cold Mill Work Rolls,” Iron and Steel Engineer August 1991 57 59
- Millet P. Vetters S. Aluminium September 1991 28
- Saur E. Neuere Entwicklungen in der Blechumformung 1992 285 305
- Snaith B. El-Menshawy H. “Options for Texturing Steel and Aluminium Alloy Sheet Metal Surfaces,” Sheet Metal 1992 Shirvani B. Baggs D. R. H. 1992 233 248
- Ujihara S. Hisatsune T. Hishida Y. Imanaka M. Abe H. “Application of Laser-Textured Steel Sheets for Autobody Panels,” Iron and Steel Engineers August 1991 52 56
- Hikida T. Takeshima Y. Uto H. “Improvement of Press Formability of Aluminum Alloy Sheets for Auto Bodies by Applying Dry Lubricant DL-1,” Sumitomo Light Metal Tech. Rep. 32 3 July 1991 34 41
- Schey J. A. Tribology in Metalworking American Society for Metals 1983 40 42
- Keeler S. P. Nine H. D. Siekirk J. F. “Formability Criteria for Selecting Sheet Metal Lubricants,” Advances and Trends in Automotive Sheet Steel Stamping 1988 49 60
- Siegert K. Thoms V. Düsseldorf VDI-Verlag 1986 383 412
- Sheasby P. G. Wheeler M. J. Kewley D. “Aluminum Structures in Volume Car Production,” Aluminium Technology '86 Institute Metals London 1986 543 549
- Wheeler M. J. Sheasby P. G. Kewley D. “Aluminum Structured Vehicle Technology A Comprehensive Approach to Vehicle Design and Manufacturing in Aluminum,” SAE Paper No. 870146 1987
- Kewley D. Campbell I. G. Wheatley J. E. “Manufacturing Feasibility of Adhesively Bonded Aluminum for Volume Car Production,” SAE Paper No. 870150 1987
- Marwick W. F. Sheasby P. G. “Evaluation of Adhesives for Aluminum Structured Vehicles,” Paper No. 870151 1987
- Embury J. D. “Some Aspects of the Formability of Aluminum Alloys,” Aluminum Transformation Technology and Applications ASM 1980 141
- Sachdev A. K. “Development of an Aluminum Sheet Alloy with Improved Formability,” Met. Trans. 21A 1990 165
- Rodrigues P. M. B. “A New 6XXX Series Aluminum Car Body Sheet Alloy,” Sheet Metal Industries 6 1984 492
- Beaver P. W. Parker B. A. “Improved Formability for Medium Strength Aluminum Alloys Through Microstructural Control,” Proceedings of the 12th IDDRG Biennial Congress 1982 85
- Bull M. J. Fortin P. E. Moore D. M. “An Optimized Aluminum Alloy (X6111) for Auto Structural Applications,” Light Metal Age 1984 28
- Morris L. R. Iricibar R. Embury J. D. Duncan J. L. “Formability of Aluminum Sheet Alloys,” Aluminum Transformation Technology and Applications - 1981 ASM 1982 549
- Rodrigues P. M. B. Akeret R. “Surface Roughening and Strain Inhomogeneities in Aluminum Sheet Forming,” Proc. of the 12th IDDRG Biennial Congress 1982 73
- Barlat F. Richmond O. “Prediction of Tricomponent Plane Stress Yield Surfaces and Associated Flow and Failure Behavior of Strongly Textured FCC Polycrystalline Sheets,” Mat'l Sci. Engr. 95 1987 15
- Story J. M. Hunt, W. H. Jr. Lege D. J. “The Relationship Between Formability and Microstructure for Al-Mn Alloy 3003-O,” Proceedings NAMRC-IX 1981
- Story J. M. Hunt, W. H. Jr. Lege D. J. “Formability of Al-Mn Alloy 3003-O with Different Microstructures,” Aluminium 57 11 1981
- Keeler S. P. “Determination of Forming Limits in Automotive Stampings,” Sheet Metal Industries 42 461 1965 683 691
- Keeler S. P. “Circular Grid System A Valuable Aid for Evaluating Sheet Metal Formability,” SAE Paper No. 680092 1968
- Goodwin G. M. “Application of Strain Analysis to Sheet Forming Problems in the Press Shop,” SAE Paper No. 680093 1968
- Nakazima K. Kikuma T. Hisuka K. Yamata Technical Report No. 264 1972 141
- Pearce R. Sheet Metal Forming Adam Hilger Bristol 1991 143 175
- Dinda S. James K. F. Keeler S. P. Stine P. How to Use Grid Circle Analysis for Die Tryout ASM 1981
- Story J. M. “Geometrical Aspects of Stretch-Bend Testing and a Correlation with Forming Performance,” Proceedings NAMRC-XII 1984 193 200
- Story J. M. “Variables Affecting Dome Test Results,” Journal of Applied Metalworking 2 2 1982 119 125
- Story J. M. “Formability Testing of Aluminum Sheet Materials,” Aluminium 62 11 1986 835 839
- Story J. M. “Formability Testing of Aluminum Sheet Materials,” Aluminium 62 10 1986 738 742
- Story J. M. “Formability Testing of Aluminum Alloys,” Aluminium Technology '86 1986 104.1 104.8
- Ghosh A. K. “The Effect of Lateral Drawing-In on Stretch Formability,” Met. Engr. Quarterly 15 1975 53 64
- Ayres R. A. Brazier W. G. Sajewski V. F. “Evaluating the GMR Limiting Dome Height Test as a New Measure of Press Formability Near Plane Strain,” J. Appl. Metalworking 1 1 1979 41 49
- Story J. M. “A Comparison of Correlations Between Press Performance and Dome Test Results Using Two Dome Test Procedures,” Journal of Applied Metalworking 3 3 1984 292 300
- Taylor B. R. “Formability Testing of Sheet Materials,” Forming and Forging , Metals Handbook 14 Ninth ASM 1988 878
- Wagoner R. H. Wang N. M. “An Experimental and Analytical Investigation of the In-Plane Deformation of 2036-T4 Aluminum Sheet,” Int. J. Mech. Sci. 21 1979 255
- Story J. M. Lege D. J. Hunt, W. H. Jr. “The Effects of Strain Hardening, Strain Rate Sensitivity and Normal Anisotropy on High-Speed Dome Test Results for Precipitation- and Dispersion-Strengthened Aluminum Alloy Sheets,” Novel Techniques in Metal Deformation Testing TMS-AIME Wagoner R. H. 1983 113 129
- Olander D. D. Miller A. K. “The Influence of Constitutive Behavior on Predicted Sheet Metal Forming Limits,” Controlling Sheet Metal Forming Processes , Proc. 15th Biennial Congress IDDRG 1988 133 144
- Da Rocha A. Barata Jalinier J. M. “Plastic Instability of Sheet Metals under Simple and Complex Strain Paths,” Transactions of the Iron and Steel Institute of Japan 24 1984 132 140
- Barlat F. Da Rocha A. Barata Jalinier J. M. “Influence of Damage on the Plastic Instability of Sheet Metals under Complex Strain Paths,” J. Materials Science 19 1984 4133 4137
- Da Rocha A. Barata Barlat F. Jalinier J. M. “Prediction of the Forming Limit Diagrams of Anisotropic Sheets in Linear and Nonlinear Loading,” Materials Science and Engineering 1984 151 164
- Hidalgo R. E. Alcoa Technical Center 1991
- Cao J. “Drawbead Penetration as a Control Element of Material Flow During Sheet Metal Forming,” Massachusetts Institute of Technology 1992