A method for varying a computer stored cad - 3d - model of a casting with respect to shrinkage

摘要

the invention relates to a method for changing a rechnergespeicherten cad 3d model of a guu00dfformteiles with regard to shrinkage.the modification of cad 3d modellflu00e4chen (fb) due to the schwindungsbedingten ortsu00e4nderung of corresponding characteristic points (pi), and the calculation of the location of the characteristic points to a stationary anspritzpunkt (a), the flieu00dfweg (fr) of the schme lze in cad 3d model and the different longitudinal and querschwindungsfaktoren are taken into account.