An optimisation study of the modified deep-hole drilling technique using finite element analyses applied to a stainless steel ring welded circular disc

摘要

Highlights ? A complex residual stress field is generated by the partial welding of an austenitic stainless steel circular disc. ? Neutron diffraction measurement validates the numerical model. ? Finite element simulation of the deep-hole drilling technique is used to highlight the influence of plasticity. ? Extensive FEA simulation is used to demonstrate how (a) to account for plasticity and (b) to avoid plasticity in deep-hole drilling method. Abstract