... OEM4, FIMA , AP,QP,QA,QC,AOL,RDThe ultimate success of casting design deponds on the communications between the designer and ... to +/-1/2degree where existing distortion could be expected .Inclusion of gussets and ribs normally minimizes distortion and many section can ... add cost ,the following non-destructive tests are listed from least to greatest cost :1) Magnetive particle2) Fluid penetrant3) X- ...