[PDF] Top 20 Optimizing tube hydroforming using process simulation and experimental verification

... of using the flow stress data ob- tained by a tensile test of a sheet metal specimen for THF process simulations is not correct because (a) the state of stress encountered in the hydroforming ... See full document

... each simulation was optimized to ensure that all of the tubes were able to form past the 20% thinning ...the tube in the experimental THF process requires additional fluid to fill the larger ... See full document

... adaptive simulation concept as an effective finite element method (FEM) approach to select a feasible tube hydroforming loading path with a minimum number of simulation runs or even with a ... See full document

... micro-tube hydroforming are carried ...the process, including the pressure vessel, feeding equipment, and ...the process will contain multiple areas for tube placement, each with a ... See full document

... A new method for preform design based on shape resemblance has been presented. The proposed method is based on constructing a part slightly larger than the desired part and then performing a finite element ... See full document

... providers are motivated to reduce operation cost while improving the quality of service. This has given rise to preventive medicine in order to avoid disease, lessening the demand for emergency department and hospital ... See full document

... experiments using a computer-controlled testing apparatus to examine the influence of linear and non-linear loading paths on the behavior of thin-walled aluminum tubes during ... See full document

... The example of combined effects can be seen through the application of heat exchanger in air conditioning system where heat transferred from the coil surface is carried away by the medium of heat transportation flowing ... See full document

... the simulation results of low pressure tube hydroforming for square corner die with ramp and constant pressure ...the tube upper part, lower part and side wall are thickening uniformly, while ... See full document

... the tube is ...round tube. In the first stage of the process the tubes are inflated in a bending mode, without any wall thickness ...the tube wall starts, resulting in reduction of the wall ... See full document

... for optimizing machining parameter that could yield minimum machining time at the same time maintaining the desired surface roughness and ...adequacy process occurs at cutting speed of 1500rpm, feed rate of ... See full document

... Further experimental works by (1) utilizing large-area SLG; (2) optimizing the cleaning process; (3) optimizing the growth parameters of the present growth method, and (4) utilizing other ... See full document

... thick-wall tube hydroforming are increasingly used in industries, especially air-conditioner and automotive ...In hydroforming those thick-wall components, the very high internal pressure and ... See full document

... A complete set of numerical parameter studies on pipe tube heat exchanger has been presented in detail in this paper. The calculation have been carried out by well verified and validated rating. The corresponding ... See full document

... the process, billet is grabbed by rolls which rotate and displace the workpiece in the axial ...compression process is realized, which lasts until the plug nose contacts the workpiece ...forming ... See full document

... the tube is pushed by axial feeding during the hydroforming ...before hydroforming, in this study, intrusion bending could suppress thickness reduction more than rotary draw bending due to the ... See full document

... Sam postopek preoblikovanja z medijem je v raziskovalnem okolju poznan že dalj èasa, saj segajo prve raziskave preoblikovanja tankostenskih cevi z uporabo notranjega tlaka že v šestdeseta in sedemdeseta leta prejšnjega ... See full document

... Abstract:- Tube hydroforming (THF) is currently an active area of development in the automotive industry on account of its advantages it offers in comparison to other manufacturing ...the process ... See full document

... In tube hydroforming, the process is limited to thin tubes due to the power requirement to perform the ...in tube hydroforming and forging process. In free bulging tube ... See full document

... of hydroforming technology in ...and tube bulging test were introduced on fundamentals of ...New hydroforming and hydro-bending process of ultra-thin tubes were ...of tube ... See full document