Kinematic bending of profiles allows to manufacture parts with high flexibility concerning the geometry. Still, production asymmetric cross-sections regarding force application axis using kinematic processes offers challenges springback and warping. These geometric deviations can be reduced by partial, cross-sectional heating during process as it lowers flow stress locally. In this work, influe...

Samples of wood from Populus × canadensis (9,5 % moisture) were treated with olive oil at 195 °C simultaneously 15 or 30 compression densification, and the results compared samples subjected to heat treatment without control samples. The density increased by 18 %, 43 1,5 respectively, barely changed over six subsequent months stored inside laboratory room (at approximately 65 RH, 20 °C). Thi...

Hybrid machining-forming technology is a combination of two thin-structural machining and incremental forming manufacturing processes. A group complex geometry parts in which thick region connected to thin-wall can be manufactured through this with certain advantages. The made by require less raw material compared the ones created means machining. major problem dimensional geometric inaccuracy ...

The assembly of compliant, non-rigid parts is widely used in automotive, aerospace, electronics, and appliance manufacturing. Dimensional variation is one important measure of quality in such assembly. This paper presents models for analyzing the propagation of dimensional variation in multi-stage compliant assembly systems and the use of such models for robust design and adaptive control of as...

Reliable simulation of hot stamping process requires accurate material data. This paper describes the development of computer models that can provide many of the material data required, including TTT/CCT phase transformation diagrams, temperature dependent physical and thermophysical properties, as well as temperature and strain rate dependent mechanical properties including high temperature st...

Present research involving ElectricallyAssisted Manufacturing (EAM) has shown the advantageous effects that an applied current flux provides on the mechanical properties with respect to part formation. Overall general results using this process include the reduction of the flow stress during forming, increased achievable deformation, and a decrease or elimination of springback. Specifically tar...

Geometrical inaccuracy of sheet metal parts due to springback are the reason for considerable efforts in the tool and process development. Numerous studies have been carried out in order to find the optimum process parameters and tool geometry so that the resulted parts to be within tolerances. In the present paper, the finite element method coupled to the neural network method are used to get ...

Springback is the reverse elastic deformation produced by unloading process, which a common phenomenon in sheet metal stamping and forming process affects final accuracy of part. Aiming at problem springback error multi-point hyperbolic component for ships, was studied combining theoretical analysis, numerical simulation test. The mechanical property parameters stress-strain curves were obtaine...