Disclosed is a vacuum compartment structure for a cup lid and a manufacturing method thereof. The vacuum compartment structure for a cup lid includes a stainless steel cylinder body and a compartment upper cover. The compartment upper cover is covered on the cylinder body and has an inwardly recessed shape, and the compartment upper cover and the cylinder body are fixedly connected and sealed by laser welding. The compartment upper cover and the cylinder body form a vacuum chamber, which has a getter therein. The compartment upper cover is arranged with a plastic upper cover layer, an outer surface of the cylinder body is wrapped with a plastic lower cover layer, and the plastic upper cover layer is combined with the plastic lower cover layer to fasten and wrap the compartment upper cover and the cylinder body.

The present disclosure provides a manufacturing process of an arc-shaped bottom titanium cup, including: S1: pressing an inner support ring; S2: primary crystallization; S3: matching; S4: welding opening parts; S5: pressing a titanium cup vacuum bottom; S6: welding the titanium cup vacuum bottom; S7: secondary crystallization; S8: vacuumizing; S9: detecting a thermal insulation function; S10: welding a titanium cup bottom plate; S11: surface polishing; and S12: oxidation processing. The present disclosure provides an inner support ring structure, the inner support ring always holds the titanium cup vacuum bottom round and maintains the titanium cup vacuum bottom in a high degree of roundness, thereby ensuring that a surface of a titanium cup shell and a titanium cup vacuum bottom is flat and smooth. The arc-shaped bottom titanium cup is clamped by adopting an upper mold and a lower mold, so that the arc-shaped bottom titanium cup is accurately limited.

The present disclosure provides a manufacturing process of an arc-shaped bottom titanium cup, including: S1: pressing an inner support ring; S2: primary crystallization; S3: matching; S4: welding opening parts; S5: pressing a titanium cup vacuum bottom; S6: welding the titanium cup vacuum bottom; S7: secondary crystallization; S8: vacuumizing; S9: detecting a thermal insulation function; S10: welding a titanium cup bottom plate; S11: surface polishing; and S12: oxidation processing. The present disclosure provides an inner support ring structure, the inner support ring always holds the titanium cup vacuum bottom round and maintains the titanium cup vacuum bottom in a high degree of roundness, thereby ensuring that a surface of a titanium cup shell and a titanium cup vacuum bottom is flat and smooth. The arc-shaped bottom titanium cup is clamped by adopting an upper mold and a lower mold, so that the arc-shaped bottom titanium cup is accurately limited.

A welding method includes overlapping a thin metal plate with a base material, and setting an annular welding schedule line on a welding schedule portion of the thin metal plate; forming a welding line such that a continuous irradiation with a laser light from a fiber laser is performed while moving the laser light along the welding schedule line, and while vibrating the laser light across the welding schedule line; and setting a length of the welding line such that an entire inside of the welding schedule line is welded.

A welding method includes overlapping a thin metal plate with a base material, and setting an annular welding schedule line on a welding schedule portion of the thin metal plate; forming a welding line such that a continuous irradiation with a laser light from a fiber laser is performed while moving the laser light along the welding schedule line, and while vibrating the laser light across the welding schedule line; and setting a length of the welding line such that an entire inside of the welding schedule line is welded.

A composite article and process for producing the composite article may include the following steps: i) coupling with interference a first component at least partially made of cast iron and a second component at least partially made of steel; ii) arranging one or more wires of filler material at one or more separation zones between said first and second component; iii) in an inert atmosphere, directing a laser beam mostly or exclusively on the steel of the second component and on the filler material for occupying at least part of the separation zone at least with said molten steel and filler material; iv) solidifying by cooling at least the molten steel and filler material in welding zones to join said first and second component, and thus obtaining the article.

A composite article and process for producing the composite article may include the following steps: i) coupling with interference a first component at least partially made of cast iron and a second component at least partially made of steel; ii) arranging one or more wires of filler material at one or more separation zones between said first and second component; iii) in an inert atmosphere, directing a laser beam mostly or exclusively on the steel of the second component and on the filler material for occupying at least part of the separation zone at least with said molten steel and filler material; iv) solidifying by cooling at least the molten steel and filler material in welding zones to join said first and second component, and thus obtaining the article.

A unit (10) for the regulation or control of a fluid pressure, having at least one housing section (13, 14) and a switching film (22) connected to the at least one housing section (13, 14) for switching at pressure differentials relative to an ambient pressure acting on the switching film (22), and for the regulation, release or blocking of a flow of the fluid between an inlet (28) and a discharge (30) for the fluid. The switching film (22) is made out of a polymer material having fluorine and carbon, in particular a thermoplastic having fluorine and carbon. In this arrangement, a hole cross-section (40) of the at least one housing section (13, 14) is closed off by the switching film (22).

A unit (10) for the regulation or control of a fluid pressure, having at least one housing section (13, 14) and a switching film (22) connected to the at least one housing section (13, 14) for switching at pressure differentials relative to an ambient pressure acting on the switching film (22), and for the regulation, release or blocking of a flow of the fluid between an inlet (28) and a discharge (30) for the fluid. The switching film (22) is made out of a polymer material having fluorine and carbon, in particular a thermoplastic having fluorine and carbon. In this arrangement, a hole cross-section (40) of the at least one housing section (13, 14) is closed off by the switching film (22).

A laser welding apparatus (1) includes a laser welding head (5) configured to irradiate a workpiece (10) with laser light, a welding filler feeding mechanism (6) configured to supply a welding material to a position on which laser welding is performed, and a hollow structural moving mechanism (100) configured to move a welding unit (50) including the laser welding head and the welding filler feeding mechanism. The hollow structural moving mechanism has an insertion portion (3a) through which wire materials (41 and 62) of the laser welding head and the welding filler feeding mechanism are inserted.