The method dynamically modifies the profile upset setpoints to systematically drive the upset formation to produce a weld with the targeted upset.

Scoring, for example, can be carried out by putting the paper (4) or similar between a scoring blade (34) and its counter-piece (21) and causing a rapid approaching movement between them, to carry out the scoring.

A method and system of inertia friction welding that enables the production of inertia friction welds in which the final upset can be controlled to an operator specified target.

The method dynamically modifies the profile upset setpoints to systematically drive the upset formation to produce a weld with the targeted upset.

The bevel panel of each ply is defined in part by spaced score lines.

Scoring, for example, can be carried out by putting the paper (4) or similar between a scoring blade (34) and its counter-piece (21) and causing a rapid approaching movement between them, to carry out the scoring.

The first lid has a weakened surface region (22) formed by scoring, scribing or grooving.

The fixed base (21, 22) comprises an inclined surface for the jumping bead (414) to slidingly contact and a location hole for the jumping bead (414) to be embedded in.

A method for the formation of an enlarged end portion of a bar (48) by upset forging.

The webs (16) further define partial score lines (20a, 20b).

Back plates (30) are employed about the ends (41) to facilitate the upset forging process.

According to the invention, the base body is embodied as a part which is formed by upsetting a pressed, stamped or bent part.

In the upsetting method, the planned swelling parts (2) of the material (1) are bent while the planned swelling parts (2) are being swelled.

Then the "vino de lágrima" (free-run juice) is separated, only using the wine from the restomping the grapes.

One end of the jumping bead (414) is connected with the spring (413), and another end of the jumping bead (414) is exposed out of the telescopic rod (41, 42).