초록 ▼

A friction stir welding tool is provided generally comprising three parts: a rotatable welding tool body (22) that has an outer threaded surface (32) and a probe (24) extending from a distal end of the body, a shoulder (26), which has a threaded inner surface (40) and a bore (36) at a distal end of

A friction stir welding tool is provided generally comprising three parts: a rotatable welding tool body (22) that has an outer threaded surface (32) and a probe (24) extending from a distal end of the body, a shoulder (26), which has a threaded inner surface (40) and a bore (36) at a distal end of the shoulder, and a jam nut (28), which has a threaded inner surface (42). The shoulder is threaded onto the tool body such that the probe extends from the shoulder through the bore by a preferred length. The jam nut is then threaded onto the tool body to secure the shoulder. The tool is operatively connected to a drive motor for rotating the tool body. The shoulder may include a knife edge projecting from the distal end (38) thereof adjacent the bore. The knife edge inhibits the weld material from migrating along the probe to intrude inside the shoulder, where it may prevent separation of the tool body and the shoulder when readjustment of the tool is necessary.

대표청구항 ▼

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.] A friction stir welding tool having a probe wherein an exposed length thereof can be adjusted, the tool comprising:(a) a rotatable welding tool body having an outer threaded surfac

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.] A friction stir welding tool having a probe wherein an exposed length thereof can be adjusted, the tool comprising:(a) a rotatable welding tool body having an outer threaded surface and a probe extending from a distal end of the body;(b) a shoulder having a threaded inner surface and a bore for allowing the probe to pass through the shoulder, the shoulder threaded onto the distal end of the tool body; and(c) a jam nut having a threaded inner surface threaded onto the tool body, the jam nut separated from the probe by the shoulder, the jam nut being adapted to secure the shoulder relative to the tool body, after the shoulder is adjustably threaded onto the tool body, to maintain the exposed length of the probe.