A workholder (6) has a contoured bonding surface (7), which essentially matches a contoured surface (4) of an airfoil (1). A plurality of studs (8) are disposed within a plurality of tapped holes (9) located about the workholder bonding surface. In operation, the studs are extended outwardly from the...http://www.google.es/patents/US4685660?utm_source=gb-gplus-sharePatente US4685660 - Workholder for securing a workpiece thereto