A study of longitudinal cracking and the forming technology for deep-drawn austenitic stainless-steel cups

Yang, Yuying; Li, Chunfeng; Xu, Hongzhi

doi:10.1016/0924-0136(92)90344-r

Cited by 16 publications

(12 citation statements)

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“…The change of the tangential stresses with the axial position has been pointed out in the literature [3,5,6], in this case we find a difference of appoximately 50 MPa over an axial distance of 5 mm, increasing from the mid-line towards the cup bottom. Because of the axial gradient there will be also a slight twist of the ring, i.e.…”

Section: Intact Ringmentioning

confidence: 75%

“…Danckert [2] used a variation of layer removal together with X-ray diffraction for monitoring the stress changes. Yuying et al [5] used a similar method of layer removal together with X-ray diffraction on stainless steel cups having varying degrees of strain-induced martensite. Their findings revealed vastly different through-thickness tangential stresses depending on the content of induced martensite.…”

Section: Introductionmentioning

confidence: 99%

“…In an attempt to simplify the problem, various studies have dealt with symmetric, generic shapes among which circular cups have received the most attention [3][4][5][6][7] as a promising way to characterize a material's springback properties in a quick and consistent way. For a standardizable test, it is desirable that it be fairly easy, repeatable and in the case of this particular need, have a large springback component that can be easily measured.…”

Section: Introductionmentioning

confidence: 99%

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A synchrotron study of residual stresses in a Al6022 deep drawn cup

Gnaeupel-Herold

Prask

Fields

et al. 2004

Materials Science and Engineering: A

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Section: Intact Ringmentioning

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A synchrotron study of residual stresses in a Al6022 deep drawn cup

Gnaeupel-Herold

Prask

Fields

et al. 2004

Materials Science and Engineering: A

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“…A test that has received considerable attention [2][3][4][5][6] consists of a ring sample taken from the sidewall of a flat bottom, deep drawn cup. The test geometry is presented graphically below in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

Robustness of the sheet metal springback cup test

Foecke

Gnaeupel-Herold

2006

Metall Mater Trans A

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The robustness of a proposed test for elastic springback characterization of sheet metal has been examined using a matrix of defined experimental errors. A series of flat bottom deep drawn cups made from AISI 1010 steel sheet were examined. It was found that misalignment of the blank over the forming tool and error in the vertical location where the springback ring was cut from the cup sidewall had the largest effect on the resulting springback opening. Other experimental errors involving cup height and ring width were found to be less important. The effect of in-plane anisotropy of mechanical properties on springback was negligible. The results are examined in terms of measured through thickness residual stresses and elastic bending of beams with circumferential thickness gradients.

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“…Most of the stress-related experimental and theoretical work done on deep drawn cups has focused on the actual value of the springback, which is measured as the opening of a ring cut from the center section of the cup and subsequently split open [1][2][3][4][5][6][7]. The difficulty in modeling the opening as an integral effect is that a multitude of stress distributions can produce the same opening, thus making it more difficult to optimize the computer model in a way that it reproduces the actual stresses in the cup wall.…”

Section: Introductionmentioning

confidence: 99%