Allows a sensitive guiding of the file for base side (hanging) edge preparation.

Recommended edge preparation for different thicknesses of sheet and plate is shown in Table 29.

Practically no edge preparation is necessary depending on joint configuration and required penetration.

Edge preparation of butt joints must receive particularly careful consideration when the metal is thicker than about 3/8 in.

The type of edge preparation used, such as single-V, square-butt., should be in accordance with normal good welding practice.

The reduced precipitation has influenced the toughness characteristics of the square edge preparation weld metal.

Obviously sometimes setting up can be fairly quiet eg marking out other times it can be quite noisy, edge preparation by manual grinding.

Table 11 Recommended edge preparations for TIG and MIG butt-welds.

Ongoing research includes the analysis of cutting edges of different knife materials, at different stages of wear, with different edge preparation techniques (including coarse and fine Steels).

A root crack is the crack formed by the short bead at the root(of edge preparation) beginning of the welding, low current at the beginning and due to improper filler material used for welding.Major reason for happening of these types of cracks is hydrogen embrittlement.

Moreover, following features must be highlighted: hull structure modeling: an algorithm to represent corrugated parts more accurately, commands for checking the edge preparation of plates and profiles, options for the definition of face bars and an algorithm to represent more accurately curved shell and deck plates.