Micro-electrical Discharge Machining

Uhlmann, Eckart; Rohner, Markus; Langmack, Malte; Schimmelpfennig, Tassilo-M.

doi:10.1016/b978-0-323-31149-6.00004-9

Cited by 6 publications

(1 citation statement)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although the traditional manufacturing technologies, including mechanical machining [8,9], electrical discharge machining [10], laser machining [11], etc., are still widely employed to fabricate meso-/microparts for their good adaptability to different materials and conditions, they are less applicable when large numbers of product and high production rates are required [12]. Therefore, the meso-/micro-forming, i.e., the plastic processing technology applied in the meso/micro-eld, has been serving as an effective fabrication method for the mass production of meso-/micro-scaled metallic parts [5,13].…”

Section: Introductionmentioning

confidence: 99%

Geometrical and microstructural size effects in meso-/micro-scaled progressive forming by directly using metal wires

Wang

Zheng²,

Feng³

et al. 2022

Preprint

View full text Add to dashboard Cite

A progressive meso-/micro-forming process directly using continuous wire metals is firstly developed in this work and applied for efficiently making fork-shaped parts with irregular features, e.g., flat tines and cylindrical head. Meanwhile, both geometrical and microstructural size effects on the forming quality of fabricated parts are investigated. Therein, the brass CuZn35 wires with three diameters (0.4, 0.8 and 1.2 mm) and various grain sizes (30.9-159.2 µm) are prepared and employed as the experimental materials. The material flow behavior in this progressive meso-/micro-forming process is investigated by finite element simulations and the micro-scaled specimens are found to exhibit more uniform strain distributions. As for the dimensional accuracy, the absolute errors of the thickness and width of the final parts increase with grain size, while the errors of height and inner width are only related to the precision of the punch. The increasing surface roughness after the progressive meso-/micro-forming process decreases with enlarging specimens and refining grains. Cracks easier appear on the side surface of micro-scaled specimens and specimens with the larger grain size.

show abstract