Deformation characteristics and performance evolution of superalloy capillary drawn by electrically assisted microforming

Liu, Yizhe; Meng, Bao; Wan, Min

doi:10.1016/j.ijmecsci.2022.107912

Cited by 4 publications

(1 citation statement)

References 46 publications

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“…Jiang et al [21] present a highcurrent power supply for an electrically assisted three-roll incremental rolling system capable of producing tubes of various diameters without the need for die/tool replacement. Liu et al [22] proposed an electrically assisted (EA) micro-forming process and investigated the deformation characteristics and performance evolution of capillaries under electric current to achieve the precise and efficient fabrication of capillaries. The above various electric-assisted forming processes indicate that introducing pulsed current can effectively improve the part quality.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Current Intensity and Feed Speed in Electrically Assisted Necking and Thickening of 5A02 Aluminum Alloy Tubes

Fan,

Xu,

Tao

et al. 2024

Materials

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In order to further explore the forming limits of thin-wall tube necking and thickening, and obtain sufficient thickness of the tube in the thickening area, local electric pulse-assisted forming experiments were carried out to study the effects of current intensity and feed speed on the necking and thickening forming of thin-wall tube. The experimental results show that with the increase in current intensity, the temperature in the forming area of the tube increases, and the forming load for necking and thickening decreases. However, with the increase in feed speed, the overall forming load for necking and thickening increases in general, and the smaller feed speed is more conducive to forming. Taking into account the forming efficiency and electrode loss, the corresponding forming process window is obtained for the manufacturing of good parts. That is, during the necking stage, the current intensity shall not be less than 300 A, and the feed speed shall not exceed 10 mm/min. During the thickening stage, the current intensity should not be less than 1400 A, and the feed speed should not exceed 1 mm/min. The target part is finally formed, with an average wall thickness of 5.984 mm in the thickening zone and a thickening rate of 303.2%.

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Section: Introductionmentioning

confidence: 99%