Superplastic sheet metal forming of a generalized cup part ii: nonuniform thinning
Abstract A computational process model for the super plastic formation of a generalized cup is presented that takes into account the variation in thinning in the unsupported region. The relative pole to edge thinning arises due to the change in the state of stress from balanced biaxial at the pole t...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Chandra, N. [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
1992 |
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| Schlagwörter: |
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| Anmerkung: |
© ASM International 1992 |
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| Übergeordnetes Werk: |
Enthalten in: Journal of materials engineering and performance - Springer-Verlag, 1992, 1(1992), 6 vom: Dez., Seite 813-822 |
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| Übergeordnetes Werk: |
volume:1 ; year:1992 ; number:6 ; month:12 ; pages:813-822 |
| Links: |
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| DOI / URN: |
10.1007/BF02658265 |
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OLC2053011203 |
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| 520 | |a Abstract A computational process model for the super plastic formation of a generalized cup is presented that takes into account the variation in thinning in the unsupported region. The relative pole to edge thinning arises due to the change in the state of stress from balanced biaxial at the pole to plane strain at the edge. Using kinematic conditions and material constitutive equations, a relationship between the instantaneous thickness at the pole and edge is developed. An equation for thickness variation from center to edge in terms of convected coordinates is postulated. Process parameters including thickness profile and pressure-time cycle for the generalized cup are determined using an incremental formulation. The solution developed in Part II depends on process and material parameters, unlike the uniform thinning model. The thickness profile for different shapes like the dome, cup, and cone formed from superplastic aluminum 7475 and aluminum-lithium alloys are compared with experimental results. | ||
| 650 | 4 | |a Thickness Distribution | |
| 650 | 4 | |a Thickness Profile | |
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| 650 | 4 | |a Superplastic Form | |
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10.1007/BF02658265 doi (DE-627)OLC2053011203 (DE-He213)BF02658265-p DE-627 ger DE-627 rakwb eng 620 660 670 VZ Chandra, N. verfasserin aut Superplastic sheet metal forming of a generalized cup part ii: nonuniform thinning 1992 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © ASM International 1992 Abstract A computational process model for the super plastic formation of a generalized cup is presented that takes into account the variation in thinning in the unsupported region. The relative pole to edge thinning arises due to the change in the state of stress from balanced biaxial at the pole to plane strain at the edge. Using kinematic conditions and material constitutive equations, a relationship between the instantaneous thickness at the pole and edge is developed. An equation for thickness variation from center to edge in terms of convected coordinates is postulated. Process parameters including thickness profile and pressure-time cycle for the generalized cup are determined using an incremental formulation. The solution developed in Part II depends on process and material parameters, unlike the uniform thinning model. The thickness profile for different shapes like the dome, cup, and cone formed from superplastic aluminum 7475 and aluminum-lithium alloys are compared with experimental results. Thickness Distribution Thickness Profile Spherical Segment Superplastic Form Hemispherical Dome Kannan, D. aut Enthalten in Journal of materials engineering and performance Springer-Verlag, 1992 1(1992), 6 vom: Dez., Seite 813-822 (DE-627)131147366 (DE-600)1129075-4 (DE-576)033027250 1059-9495 nnns volume:1 year:1992 number:6 month:12 pages:813-822 https://doi.org/10.1007/BF02658265 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_11 GBV_ILN_23 GBV_ILN_70 GBV_ILN_2006 GBV_ILN_2027 GBV_ILN_4036 AR 1 1992 6 12 813-822 |
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10.1007/BF02658265 doi (DE-627)OLC2053011203 (DE-He213)BF02658265-p DE-627 ger DE-627 rakwb eng 620 660 670 VZ Chandra, N. verfasserin aut Superplastic sheet metal forming of a generalized cup part ii: nonuniform thinning 1992 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © ASM International 1992 Abstract A computational process model for the super plastic formation of a generalized cup is presented that takes into account the variation in thinning in the unsupported region. The relative pole to edge thinning arises due to the change in the state of stress from balanced biaxial at the pole to plane strain at the edge. Using kinematic conditions and material constitutive equations, a relationship between the instantaneous thickness at the pole and edge is developed. An equation for thickness variation from center to edge in terms of convected coordinates is postulated. Process parameters including thickness profile and pressure-time cycle for the generalized cup are determined using an incremental formulation. The solution developed in Part II depends on process and material parameters, unlike the uniform thinning model. The thickness profile for different shapes like the dome, cup, and cone formed from superplastic aluminum 7475 and aluminum-lithium alloys are compared with experimental results. Thickness Distribution Thickness Profile Spherical Segment Superplastic Form Hemispherical Dome Kannan, D. aut Enthalten in Journal of materials engineering and performance Springer-Verlag, 1992 1(1992), 6 vom: Dez., Seite 813-822 (DE-627)131147366 (DE-600)1129075-4 (DE-576)033027250 1059-9495 nnns volume:1 year:1992 number:6 month:12 pages:813-822 https://doi.org/10.1007/BF02658265 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_11 GBV_ILN_23 GBV_ILN_70 GBV_ILN_2006 GBV_ILN_2027 GBV_ILN_4036 AR 1 1992 6 12 813-822 |
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10.1007/BF02658265 doi (DE-627)OLC2053011203 (DE-He213)BF02658265-p DE-627 ger DE-627 rakwb eng 620 660 670 VZ Chandra, N. verfasserin aut Superplastic sheet metal forming of a generalized cup part ii: nonuniform thinning 1992 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © ASM International 1992 Abstract A computational process model for the super plastic formation of a generalized cup is presented that takes into account the variation in thinning in the unsupported region. The relative pole to edge thinning arises due to the change in the state of stress from balanced biaxial at the pole to plane strain at the edge. Using kinematic conditions and material constitutive equations, a relationship between the instantaneous thickness at the pole and edge is developed. An equation for thickness variation from center to edge in terms of convected coordinates is postulated. Process parameters including thickness profile and pressure-time cycle for the generalized cup are determined using an incremental formulation. The solution developed in Part II depends on process and material parameters, unlike the uniform thinning model. The thickness profile for different shapes like the dome, cup, and cone formed from superplastic aluminum 7475 and aluminum-lithium alloys are compared with experimental results. Thickness Distribution Thickness Profile Spherical Segment Superplastic Form Hemispherical Dome Kannan, D. aut Enthalten in Journal of materials engineering and performance Springer-Verlag, 1992 1(1992), 6 vom: Dez., Seite 813-822 (DE-627)131147366 (DE-600)1129075-4 (DE-576)033027250 1059-9495 nnns volume:1 year:1992 number:6 month:12 pages:813-822 https://doi.org/10.1007/BF02658265 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_11 GBV_ILN_23 GBV_ILN_70 GBV_ILN_2006 GBV_ILN_2027 GBV_ILN_4036 AR 1 1992 6 12 813-822 |
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10.1007/BF02658265 doi (DE-627)OLC2053011203 (DE-He213)BF02658265-p DE-627 ger DE-627 rakwb eng 620 660 670 VZ Chandra, N. verfasserin aut Superplastic sheet metal forming of a generalized cup part ii: nonuniform thinning 1992 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © ASM International 1992 Abstract A computational process model for the super plastic formation of a generalized cup is presented that takes into account the variation in thinning in the unsupported region. The relative pole to edge thinning arises due to the change in the state of stress from balanced biaxial at the pole to plane strain at the edge. Using kinematic conditions and material constitutive equations, a relationship between the instantaneous thickness at the pole and edge is developed. An equation for thickness variation from center to edge in terms of convected coordinates is postulated. Process parameters including thickness profile and pressure-time cycle for the generalized cup are determined using an incremental formulation. The solution developed in Part II depends on process and material parameters, unlike the uniform thinning model. The thickness profile for different shapes like the dome, cup, and cone formed from superplastic aluminum 7475 and aluminum-lithium alloys are compared with experimental results. Thickness Distribution Thickness Profile Spherical Segment Superplastic Form Hemispherical Dome Kannan, D. aut Enthalten in Journal of materials engineering and performance Springer-Verlag, 1992 1(1992), 6 vom: Dez., Seite 813-822 (DE-627)131147366 (DE-600)1129075-4 (DE-576)033027250 1059-9495 nnns volume:1 year:1992 number:6 month:12 pages:813-822 https://doi.org/10.1007/BF02658265 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_11 GBV_ILN_23 GBV_ILN_70 GBV_ILN_2006 GBV_ILN_2027 GBV_ILN_4036 AR 1 1992 6 12 813-822 |
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10.1007/BF02658265 doi (DE-627)OLC2053011203 (DE-He213)BF02658265-p DE-627 ger DE-627 rakwb eng 620 660 670 VZ Chandra, N. verfasserin aut Superplastic sheet metal forming of a generalized cup part ii: nonuniform thinning 1992 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © ASM International 1992 Abstract A computational process model for the super plastic formation of a generalized cup is presented that takes into account the variation in thinning in the unsupported region. The relative pole to edge thinning arises due to the change in the state of stress from balanced biaxial at the pole to plane strain at the edge. Using kinematic conditions and material constitutive equations, a relationship between the instantaneous thickness at the pole and edge is developed. An equation for thickness variation from center to edge in terms of convected coordinates is postulated. Process parameters including thickness profile and pressure-time cycle for the generalized cup are determined using an incremental formulation. The solution developed in Part II depends on process and material parameters, unlike the uniform thinning model. The thickness profile for different shapes like the dome, cup, and cone formed from superplastic aluminum 7475 and aluminum-lithium alloys are compared with experimental results. Thickness Distribution Thickness Profile Spherical Segment Superplastic Form Hemispherical Dome Kannan, D. aut Enthalten in Journal of materials engineering and performance Springer-Verlag, 1992 1(1992), 6 vom: Dez., Seite 813-822 (DE-627)131147366 (DE-600)1129075-4 (DE-576)033027250 1059-9495 nnns volume:1 year:1992 number:6 month:12 pages:813-822 https://doi.org/10.1007/BF02658265 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_11 GBV_ILN_23 GBV_ILN_70 GBV_ILN_2006 GBV_ILN_2027 GBV_ILN_4036 AR 1 1992 6 12 813-822 |
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Superplastic sheet metal forming of a generalized cup part ii: nonuniform thinning |
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Abstract A computational process model for the super plastic formation of a generalized cup is presented that takes into account the variation in thinning in the unsupported region. The relative pole to edge thinning arises due to the change in the state of stress from balanced biaxial at the pole to plane strain at the edge. Using kinematic conditions and material constitutive equations, a relationship between the instantaneous thickness at the pole and edge is developed. An equation for thickness variation from center to edge in terms of convected coordinates is postulated. Process parameters including thickness profile and pressure-time cycle for the generalized cup are determined using an incremental formulation. The solution developed in Part II depends on process and material parameters, unlike the uniform thinning model. The thickness profile for different shapes like the dome, cup, and cone formed from superplastic aluminum 7475 and aluminum-lithium alloys are compared with experimental results. © ASM International 1992 |
| abstractGer |
Abstract A computational process model for the super plastic formation of a generalized cup is presented that takes into account the variation in thinning in the unsupported region. The relative pole to edge thinning arises due to the change in the state of stress from balanced biaxial at the pole to plane strain at the edge. Using kinematic conditions and material constitutive equations, a relationship between the instantaneous thickness at the pole and edge is developed. An equation for thickness variation from center to edge in terms of convected coordinates is postulated. Process parameters including thickness profile and pressure-time cycle for the generalized cup are determined using an incremental formulation. The solution developed in Part II depends on process and material parameters, unlike the uniform thinning model. The thickness profile for different shapes like the dome, cup, and cone formed from superplastic aluminum 7475 and aluminum-lithium alloys are compared with experimental results. © ASM International 1992 |
| abstract_unstemmed |
Abstract A computational process model for the super plastic formation of a generalized cup is presented that takes into account the variation in thinning in the unsupported region. The relative pole to edge thinning arises due to the change in the state of stress from balanced biaxial at the pole to plane strain at the edge. Using kinematic conditions and material constitutive equations, a relationship between the instantaneous thickness at the pole and edge is developed. An equation for thickness variation from center to edge in terms of convected coordinates is postulated. Process parameters including thickness profile and pressure-time cycle for the generalized cup are determined using an incremental formulation. The solution developed in Part II depends on process and material parameters, unlike the uniform thinning model. The thickness profile for different shapes like the dome, cup, and cone formed from superplastic aluminum 7475 and aluminum-lithium alloys are compared with experimental results. © ASM International 1992 |
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Superplastic sheet metal forming of a generalized cup part ii: nonuniform thinning |
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https://doi.org/10.1007/BF02658265 |
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Kannan, D. |
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Kannan, D. |
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131147366 |
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| doi_str |
10.1007/BF02658265 |
| up_date |
2024-07-03T17:39:14.122Z |
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The relative pole to edge thinning arises due to the change in the state of stress from balanced biaxial at the pole to plane strain at the edge. Using kinematic conditions and material constitutive equations, a relationship between the instantaneous thickness at the pole and edge is developed. An equation for thickness variation from center to edge in terms of convected coordinates is postulated. Process parameters including thickness profile and pressure-time cycle for the generalized cup are determined using an incremental formulation. The solution developed in Part II depends on process and material parameters, unlike the uniform thinning model. 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