Arena project PTC nov 2015 Tooltec

Purpose and goal

The aim was to develop a general method for analysis and adjustment of residual deformations with support from a test case, a component machined by Tooltec. A functioning method for analysis and adjustment of residual deformations can lead to higher component quality and more efficient operations of a large number of small and medium-sized enterprises. The method is a combination of the Contour method and machining simulation. The goal of the project has been met.

Expected results and effects

The contour method has been developed and adapted on the basis of residual stress measurements on the specific detail. The project results indicate that the method is useful and work continues within a VGR project (FoU kort advanced). A research article will be published in 2017. The project results will be presented on workshops and seminars arranged by SMF Flyg and Innovair, amongst others, and will form the basis for new projects on analysis of residual deformations.

Planned approach and implementation

The contour method involves cutting the work piece after forging. Residual stresses are thereby released and results in a geometrical protuberances. The protuberance is measured and integrated into an FE model. The protuberance is then pushed back with a FE calculation and one has recreated the residual stress state virtually. The contour method has been developed and analyzed with the support of the residual stress measurement, measurement of residual deformation and simulation. Tooltec, GKN and Swerea IVF have in cooperation developed and validated method.