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89 matches in the database. These are records: 1 - 30. New search.

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1. Evaluation of tool materials, coatings and lubricants in forming galvanized advanced high strength steels (AHSS). Kim, H.; Han, S.; Yan, Q.; Altan, T. CIRP Annals - Manufacturing Technology vol. 57 issue 1 2008. p. 299-304

 The major objective of this study is to establish guidelines to select the… (more)

Keywords: Stamping; Tribology; Galling

DOI: 10.1016/j.cirp.2008.03.029. ISSN: 0007-8506.

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2. Control of Blank Holder Force to Eliminate Wrinkling and Fracture in Deep-Drawing Rectangular Parts. Ahmetoglu, M.; Broek, T.R.; Kinzel, G.; Altan, T. CIRP Annals - Manufacturing Technology vol. 44 issue 1 1995. p. 247-250

  The predominant failure modes in stamping of sheet metal parts (deep drawing… (more)

Keywords: Deep Drawing; Wrinkling; Fracture

DOI: 10.1016/S0007-8506(07)62318-X. ISSN: 0007-8506.

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3. Simulation of Metal Flow and Fracture Applications in Orthogonal Cutting, Blanking, and Cold Extrusion. Ceretti, E.; Taupin, E.; Altan, T. CIRP Annals - Manufacturing Technology vol. 46 issue 1 1997. p. 187-190

  This paper summarizes the work done on the prediction of the ductile… (more)

Keywords: Finite element method; Plasticity; Fracture

DOI: 10.1016/S0007-8506(07)60805-1. ISSN: 0007-8506.

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4. Finite Element Modeling of Roller Burnishing Process. Yen, Y.C.; Sartkulvanich, P.; Altan, T. CIRP Annals - Manufacturing Technology vol. 54 issue 1 2005. p. 237-240

  Hard roller burnishing is a cost effective surface enhancement process where a… (more)

Keywords: Roller; Finite Element Method (FEM); Burnishing

DOI: 10.1016/S0007-8506(07)60092-4. ISSN: 0007-8506.

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5. Optimal Programming of Multi-point Cushion Systems for Sheet Metal Forming. Palaniswamy, H.; Braedel, M.; Thandapani, A.; Altan, T. CIRP Annals - Manufacturing Technology vol. 55 issue 1 2006. p. 249-254

  Numerical optimization technique coupled with finite element analysis of the stamping/sheet hydroforming… (more)

Keywords: Finite element method (FEM); Sheet metal; Optimization

DOI: 10.1016/S0007-8506(07)60409-0. ISSN: 0007-8506.

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6. Sheet metal forming at elevated temperatures. Neugebauer, R.; Altan, T.; Geiger, M.; Kleiner, M.; Sterzing, A. CIRP Annals - Manufacturing Technology vol. 55 issue 2 2006. p. 793-816

 Due to the need to significantly reduce the part weights in automotive manufacturing,… (more)

Keywords: Metal; Forming; Temperature

DOI: 10.1016/j.cirp.2006.10.008. ISSN: 0007-8506.

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7. Finite element analysis of the effect of blanked edge quality upon stretch flanging of AHSS. Sartkulvanich, P.; Kroenauer, B.; Golle, R.; Konieczny, A.; Altan, T. CIRP Annals - Manufacturing Technology vol. 59 issue 1 2010. p. 279-282

 Elimination of edge cracking is one of the major challenges in flanging of… (more)

Keywords: Finite element method (FEM); Piecing; Hole expansion; High-strength steel

DOI: 10.1016/j.cirp.2010.03.108. ISSN: 0007-8506.

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8. Determination of dietary habitsas a risk factor of cardiovascularheart disease in Turkish adolescents. Baş, M.; Altan, T.; Dinçer, D.; Aran, E.; Gülper Kaya, H.; Yüksek, O. European Journal of Nutrition vol. 44 issue 3 March 2005. p. 174 - 182

  Summary Background To investigate dietary habits and evaluate these with… (more)

Keywords: adolescents; cardiovascular disease; dietaryintake; cholesterol; saturated fat; Turkey

DOI: 10.1007/s00394-004-0509-8. ISSN: 1436-6207.

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9. A fatigue analysis concept to avoid failure of forging tooling. Lange, K.; Knoerr, M.; Altan, T. International Journal of Fatigue vol. 18 issue 8 November, 1996. p. 607

 The causes of fatigue failure in cold forging tooling are discussed and a… (more)

ISSN: 0142-1123.

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10. A computer-aided engineering system for feature-based design of box-type sheet metal parts. Mantripragada, R.; Kinzel, G.; Altan, T. Journal of Materials Processing Technology vol. 57 issue 3-4 February 15, 1996. p. 241-248

 This paper explores the applications of feature-based representation and design in the area… (more)

ISSN: 0924-0136.

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11. Prediction of die wear during hot-extrusion of engine valves. Painter, B.; Shivpuri, R.; Altan, T. Journal of Materials Processing Technology vol. 59 issue 1-2 May 15, 1996. p. 132-143

 Automotive exhaust valves are conventionally manufactured in North America by an extrusion-forging process.… (more)

ISSN: 0924-0136.

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12. Survey of the die and mold manufacturing industry. Fallböhmer, P.; Altan, T.; Tönshoff, H.-K.; Nakagawa, T. Journal of Materials Processing Technology vol. 59 issue 1-2 May 15, 1996. p. 158-168

 The survey of the die and mold manufacturing industry is a cooperative research… (more)

ISSN: 0924-0136.

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13. Application of 2D FEM to chip formation in orthogonal cutting. Ceretti, E.; Fallböhmer, P.; W., T. Wu; Altan, T. Journal of Materials Processing Technology vol. 59 issue 1-2 May 15, 1996. p. 169-180

 This paper summarizes the results of an investigation where the FE code DEFORM… (more)

ISSN: 0924-0136.

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14. Process optimization in stamping—a case study for flanging a clutch hub from steel plate. Wu, H.-C.; Altan, T. Journal of Materials Processing Technology vol. 146 issue 1 February 15, 2004. p. 8-19

 A large variety of bending and flanging processes is required in stamping for… (more)

Keywords: Sheet metal bending; Flanging; Springback; FEM; CAD

DOI: 10.1016/S0924-0136(03)00839-2. ISSN: 0924-0136.

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15. Experimental investigation of forming defects in flat surface–convex edge hemming. Livatyali, H.; Laxhuber, T.; Altan, T. Journal of Materials Processing Technology vol. 146 issue 1 February 15, 2004. p. 20-27

 In this paper, flanging and convex edge hemming of aluminum killed draw quality… (more)

Keywords: Sheet metal forming; Hemming; Automotive assembly

DOI: 10.1016/S0924-0136(03)00840-9. ISSN: 0924-0136.

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16. An inverse energy approach to determine the flow stress of tubular materials for hydroforming applications. Strano, M.; Altan, T. Journal of Materials Processing Technology vol. 146 issue 1 February 15, 2004. p. 92-96

 The accuracy of finite element method simulations of tube hydroforming (THF) is strongly… (more)

Keywords: Tube hydroforming; Flow stress; Finite element method; Tube bulge test

DOI: 10.1016/j.jmatprotec.2003.07.016. ISSN: 0924-0136.

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17. Prediction and elimination of springback in straight flanging using computer aided design methods. Livatyali, H.; Altan, T. Journal of Materials Processing Technology vol. 117 issue 1-2 November 2, 2001. p. 262-268

 A computer aided design method for straight flanging using finite element method is… (more)

Keywords: Sheet metal bending; Flanging; Hemming; Springback; FEM; CAD

ISSN: 0924-0136.

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18. Third International Conference on Cold and Warm Forging Technology 1996 and Second International Conference on Sheet Forming Technology 1996. Altan, T. Journal of Materials Processing Technology vol. 71 issue 1 November 1, 1997. p. 1

ISSN: 0924-0136.

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19. Influence of cutting edge radius on the wear resistance of PM-HSS milling inserts. Rech, J.; Yen, Y.-C.; Schaff, M.J.; Hamdi, H.; Altan, T.; Bouzakis, K.D. Wear vol. 259 issue 7-12 July - May, 2005. p. 1168-1176

 The wear behaviour of PM-HSS milling inserts is investigated experimentally. Cutting inserts with… (more)

Keywords: Cutting edge preparation; Milling; Wear

DOI: 10.1016/j.wear.2005.02.072. ISSN: 0043-1648.

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20. FEM simulation of orthogonal cutting: serrated chip formation. Ceretti, E.; Lucchi, M.; Altan, T. Journal of Materials Processing Technology vol. 95 issue 1-3 October 15, 1999. p. 17-26

 This study is part of the ongoing research at the Department of Mechanical… (more)

Keywords: Finite-element method; Cutting; Damage; Chip formation

ISSN: 0924-0136.

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21. High-speed machining of cast iron and alloy steels for die and mold manufacturing. Fallböhmer, P.; Rodríguez, C.A.; Özel, T.; Altan, T. Journal of Materials Processing Technology vol. 98 issue 1 January 15, 2000. p. 104-115

 This paper gives a brief overview of HSC technology and presents current progress… (more)

Keywords: HSC technology; CNC programs; Cast iron

ISSN: 0924-0136.

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22. Analytical modeling of drilling and ball end milling. Shatla, M.; Altan, T. Journal of Materials Processing Technology vol. 98 issue 1 January 15, 2000. p. 125-133

 In the present work, analytical modeling is used to analyze both the drilling… (more)

Keywords: Analytical modeling; Drilling; Ball end milling

ISSN: 0924-0136.

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23. Evaluation of sheet metal formability, viscous pressure forming (VPF) dome test. Liu, J.; Ahmetoglu, M.; Altan, T. Journal of Materials Processing Technology vol. 98 issue 1 January 15, 2000. p. 1-6

 Viscous pressure forming (VPF) offers a versatile approach to low volume stamping of… (more)

Keywords: Viscous pressure forming; DEFORM simulations; Dome test

ISSN: 0924-0136.

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24. Tube hydroforming: state-of-the-art and future trends. Ahmetoglu, M.; Altan, T. Journal of Materials Processing Technology vol. 98 issue 1 January 15, 2000. p. 25-33

 With the availability of advanced machine designs and controls, tube hydroforming has become… (more)

Keywords: Tube hydroforming technology; Pre-form geometry; Product design

ISSN: 0924-0136.

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25. Evaluation of tube formability and material characteristics: hydraulic bulge testing of tubes. Sokolowski, T.; Gerke, K.; Ahmetoglu, M.; Altan, T. Journal of Materials Processing Technology vol. 98 issue 1 January 15, 2000. p. 34-40

 Tube material properties are required for accurate design of the parts and tooling… (more)

Keywords: FEM; Hydroforming; Material testing; Tubular products

ISSN: 0924-0136.

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26. Improvement of hem quality by optimizing flanging and pre-hemming operations using computer aided die design. Livatyali, H.; Müderrisoğlu, A.; Ahmetoğlu, M.A.; Akgerman, N.; Kinzel, G.L.; Altan, T. Journal of Materials Processing Technology vol. 98 issue 1 January 15, 2000. p. 41-52

 Flanging and hemming of straight edge-flat surface (plane strain) aluminum killed-draw quality steel… (more)

Keywords: Sheet metal forming; Sheet bending; Hemming; Automotive assembly; FEM; CAD

ISSN: 0924-0136.

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27. Investigation of crack formation on the Galvalume coating of roll formed roof panels. Livatyali, H.; Duggal, N.; Ahmetoğlu, M.A.; Altan, T. Journal of Materials Processing Technology vol. 98 issue 1 January 15, 2000. p. 53-61

 Roll forming of pre-coated and pre-painted sheet metal is a common industrial practice.… (more)

Keywords: Roll forming; Roll design; FEM; CAD

ISSN: 0924-0136.

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28. Turning simulations using a three-dimensional FEM code. Ceretti, E.; Lazzaroni, C.; Menegardo, L.; Altan, T. Journal of Materials Processing Technology vol. 98 issue 1 January 15, 2000. p. 99-103

 This study is part of the ongoing research at the Department of Mechanical… (more)

Keywords: Turning; Three dimensional simulations; Orthogonal cutting; Oblique cutting

ISSN: 0924-0136.

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29. Tube hydroforming: current research, applications and need for training. Ahmetoglu, M.; Sutter, K.; Li, X.J.; Altan, T. Journal of Materials Processing Technology vol. 98 issue 2 January 29, 2000. p. 224-231

 Tube hydroforming is a relatively new technology compared to conventional stamping. Thus, there… (more)

Keywords: Tube hydroforming; Pre-form design; Hydroforming technology

ISSN: 0924-0136.

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30. Process simulation in stamping – recent applications for product and process design. Thomas, W.; Oenoki, T.; Altan, T. Journal of Materials Processing Technology vol. 98 issue 2 January 29, 2000. p. 232-243

 Process simulation for product and process design is currently being practiced in industry.… (more)

Keywords: Stamping; Process stimulation; Process design

ISSN: 0924-0136.

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