Erratum to “Investigations into the hydraulic-pressure augmented deep drawing process” [J. Mater. Proc. Technol. 105 (1/2) (2000) 161–175]

Thiruvarudchelvan, S.; Wang, H.

doi:10.1016/s0924-0136(00)00873-6

Cited by 8 publications

(6 citation statements)

References 13 publications

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“…It can be observed that the stress modulus of the compounds increased with the increasing aging time; this increase was especially pronounced for the NBR/SiO 2 and NBR/SiO 2 /EMIM SCN composites. Furthermore, decrement in the stress at 300% elongation of NBR/SiO 2 /EMIM SCN was observed when the irradiation was longer than 96 h. These changes were directly associated with changes in the original crosslinked structure, i.e., main chain scission and crosslinking . The formation of photo‐products and a crosslinked network in the studied materials during aging led to an increase in the stiffness of the composites.…”

Section: Resultsmentioning

confidence: 88%

Study on Weather Aging of Nitrile Rubber Composites Containing Imidazolium Ionic Liquids

Marzec

Laskowska

Boiteux

et al. 2014

Macromolecular Symposia

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International audienceWeather aging of nitrile rubber composites containing hydrophilic 1-ethyl-3-methylimidazolium thiocyanate (EMIM SCN) and hydrophobic 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide (EMIM TFSI), and 1-allyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide (AMIM TFSI) ionic liquids was investigated. The mechanical properties at small (dynamic mechanical analysis) and high deformation (tensile test), the hardness and the electrical properties were measured before and after the aging process. It was found that the presence of hydrophobic ionic liquids in the nitrile rubber enhanced the retention of their mechanical properties (tensile strength, stiffness) and slightly reduced surface defects (as determined by scanning electron microscopy), thereby retarding the aging of rubber composites. However, the presence of hydrophilic EMIM SCN in the composite accelerated the degradation of the studied materials because of its high crosslinking activity during the aging process. The electrical studies showed also lower stability of hydrophilic ionic liquid (EMIM SCN) in the studied nitrile matrix (leaking effects) compared to the hydrophobic one (EMIM TFSI, AMIM TFSI)

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Section: Resultsmentioning

confidence: 88%

Study on Weather Aging of Nitrile Rubber Composites Containing Imidazolium Ionic Liquids

Marzec

Laskowska

Boiteux

et al. 2014

Macromolecular Symposia

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“…From this consideration, a new concept has emerged, based on the use of elastic intermediate elements (EIE) in rotary swaging. Comparable approaches for other forming processes are mentioned in [8,9]. The use of elastomers in metal forming was summarized in [8] and in [9] micro patterning of thin metallic plates using rubber in a forming container was investigated.…”

Section: Fig 3 Flash Formation In Plunge Rotary Swaging With Three Diesmentioning

confidence: 99%

High productivity micro rotary swaging

et al. 2018

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Rotary swaging is an incremental forming process with two main process variations plunge and infeed rotary swaging. With plunge rotary swaging, the diameter is reduced within a limited section whereas the infeed rotary swaging enables a diameter reduction over the entire workpiece length. The process is now subject to intensive investigation for manufacturing of micro parts. By increasing the process speed, failures occur particularly due to inappropriate material flow. In plunge rotary swaging, the workpiece material can flow radially into the gap between the dies and thus the workpiece quality suffers. In infeed rotary swaging the workpiece material flows against the feeding direction and can provoke bending or braking of the workpiece. Therefore, additional measures to control both the radial and the axial material flow to enable high productivity micro rotary swaging are investigated. The radial material flow during plunge rotary swaging can be controlled by elastic intermediate elements that enable an increase of productivity by factor three. A spring-loaded clamping device that enables an increase of the productivity by factor four can temporarily buffer the axial material flow in infeed rotary swaging against the feeding direction.

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“…Eq. (8) implies that even if the frictional support is more than the strength of the metal at the die throat the draw stress will be limited to the strength of the work-hardened metal. This will happen if the counter pressure is high.…”

Section: Theorymentioning

confidence: 99%

“…In the hydraulic-pressure augmented deep drawing process [7,8], a draw stress proportional to the internally generated hydraulic pressure was created automatically. There was no independent control of the draw stress as the pressure itself is used to advance the punch.…”

Section: Experimental Workmentioning

confidence: 99%