B - Operations – Transporting – 23 – P
Patent
B - Operations, Transporting
23
P
204/85
B23P 15/02 (2006.01) B23H 9/10 (2006.01)
Patent
CA 1127590
ABSTRACT An improved method of forming articles, such as airfoils, includes forming the major side surfaces of a plurality of airfoils in two groups or series along opposite edge portions of a workpiece by utilizing a plurality of pairs of electrodes to effect the electrolytic removal of material from opposite sides of the workpiece. Leading and trailing edge portions of the airfoils are formed by utilizing a plurality of relatively long narrow electrodes to effect the electrolytic removal of material to form slots between the major side surfaces of the airfoils and the remaining portion of the workpiece. During the electrolytic removal of material to form both the major side surfaces and the slots at the leading and trailing edge portions of the airfoils, an electrical potential is establish- ed between the electrodes and the workpiece and a flow of electrolyte is maintained between the electrodes and the work- piece. After the workpiece has been inspected, a b formed in association with each of the airfoils. This is accomplished by utilizing a pair of cutting tools to simul- taneously form grooves along opposite sides of the workpiece between the two series of airfoils. After the grooves have been formed, the two series of airfoils are separated from each other and cutting tools are utilized to complete the formation of the bases in association with the airfoils. As this is being accomplished, the various airfoils and their associated bases are separated from each other. The tip end portions of the airfoils are then finished by an electrochemical grinding operation.
279808
Fetherstonhaugh & Co.
Trw Inc.
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