Results 151 to 160 of about 555 (166)
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Thermal-hydraulic performance in a tube with punched delta winglets inserts in turbulent flow
International Journal of Thermal Sciences, 2022Abstract A punched delta winglet (PDW) was proposed and investigated numerically and experimentally in a turbulent flow. The effect of delta winglets with different punching holes on heat transfer performance was studied. The experimental results showed that the fluid in the core flow region and the near-wall region was fully mixed due to the ...
Jiangbo Wang +4 more
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On the deep drawing of cups with punch and blank-holding forces proportional to a hydraulic pressure
Journal of Materials Processing Technology, 1999Abstract A hydraulic short-stroke device was developed to draw 100 mm diameter cups from 180 mm diameter blanks, applying blank-holding forces and punch forces that are proportional to a pressure developed within the device itself. In an earlier paper, the results of experiments with aluminium and copper blanks were reported, where the punch and ...
S Thiruvarudchelvan, F.W Travis, T.K Poh
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Plastic Instability of Thin Shells Deformed by Rigid Punches and by Hydraulic Pressure
Journal of Engineering Materials and Technology, 1973A theory has been developed to provide a solution for axisymmetrical shells in the plastic range for large deformations up to fracture. It includes the effects of strain history, nonlinear strain-hardening characteristics of materials, plastic anisotropy in the thickness direction, prestrain, through-thickness stress, and boundary tractions. It is also
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Performance and optimization of parameters on rubber punching process
Materials Today: Proceedings, 2021Ram Subbiah, N Ravikumar
exaly
Handheld hydraulic punch driver tools create different aperture shapes
Sealing Technology, 2016openaire +1 more source