"welding" newsreels and historical clips

... Proving Ground.

Production of manganese ore in the taiga.

German planes in the sky.

The shadow of the plane on the ground.

Factory shop.

Pouring metal.

Welding.

Academician Paton at the factory.

Tanks on the conveyor.

Soviet tanks on the battlefield.

Rewarding designers.

By young workers in the factory shop ...

Street of the city.

The trench, there are pipes in it.

The welder welds the pipes.

Alternation of frames with welding works.

An electric arc is characterized by a dazzling bright light comparable to the brightness of the sun, temperatures of thousands of degrees, a high current density at a relatively ...

... types of welding arcs.

Arcs of direct action.

If a refractory electrode, tungsten or graphite, is used, this is an arc with a non-melting electrode.

In this case, additive materials are used.

Currently, melting electrodes are used more often.

Such an electrode is a supplier of metal to the welding bath. ...

... on both direct and alternating current.

To isolate the arc from the harmful effects of air, it is placed in a gas environment.

Cartoon explaining welding in inert gases and active gases.

The arc can be free or compressed.

Operation of the plasmatron.

A cartoon explaining the operation of the plasmatron ...

... in the welding current.

With a further increase in the current, the arc characteristic becomes increasing.

This is a section of arcs burning in the environment of active gases and under the flux.

The main process of electric arc welding is the melting of electrodes, the formation of a welding bath and ...

... and the formation of a weld.

A cartoon explaining the consumption of thermal welding power.

The effective thermal power of the arc.

Table of effective efficiency values for various types of welding.

An electric arc is a flexible conductor.

Like any conductor, the arc is sensitive to the action of magnetic ...

... indirect arc welding.

The arc deflection is affected by the presence of ferromagnetic masses in the immediate vicinity.

Cartoon explaining the effect of ferromagnetic mass on the arc.

Magnetic blast should be taken into account when welding, as it affects the formation and quality of the weld.

In an alternating ...

Cartoon explaining the effect of an extraneous transverse magnetic field on the welding arc.

Cartoon explaining the effect of an extraneous longitudinal magnetic field on the welding arc.

Alternating frames with welding work.

... work.

High-frequency welding (animation).

Electric welded pipes.

Technological tests of the weld.

The structure of the seam under the microscope.

Metallurgical plant in Vesel.

The workshop of the plant.

Technical director of the plant Z.Garnichek (synchronously).

Finished pipes.

Welded pipes made of bronze ...

... bronze.

Welding unit.

Welding of aluminum thin-walled pipes of large diameter.

Production of cable sheaths.

Installation for welding thin-walled profiles up to 1 millimeter thick.

Connection of thin metal planes with high-frequency currents (animation).

... pads are welded to the steel wheels.

Such materials are not welded by conventional welding methods.

Cast iron and cermet with steel can be turned into a monolith by diffusion coupling in vacuum.

A device for performing such an operation.

During the test, the material is destroyed not in the welding zone ...

... The diffusion method, unlike conventional welding, made it possible to connect almost all materials.

For example, the discorotor of an electric motor is welded from non-magnetic and magnetic steel.

The welding zone is almost indistinguishable.

The glass is welded with metal.

The surface of the part is clad ...

... connect such materials only by soldering or gluing.

Diffusion welding does not require scarce solders and provides vacuum density.

The strength in the diffusion layer is higher than that of the base material.

The author of the new welding method is Doctor of Technical Sciences, Professor N.F. Kozakov ...

... Kozakov.

Demonstration of patents.

A cartoon explaining the physical basis of the method.

Vacuum installation for welding.

Components of the installation.

Installations differ by the type of heating of parts and by the method of pressure transmission.

About 70 types of diffusion plants have been developed ...

... friendliness.

Samples of parts welded by melting and diffusion.

During diffusion welding, the parts do not deform and use less electricity.

Bearing details.

A ball sample from a bearing connected by diffusion welding.

Three types of joining materials during diffusion welding.

Example, the connection of ...

... introduced into contact.

The gasket or intermediate layer is selected in advance and applied by different methods.

Gaskets contribute to lowering the welding temperature, reducing internal stresses.

The thinnest layer of such gaskets is enough to prevent the appearance of brittle phases.

In the process of diffusion welding, a pre-prepared package of gaskets is used.

This makes it possible for a smoother phase transition when welding dissimilar materials.

The technology of diffusion welding in vacuum is relatively simple.

Surface preparation.

Turning semi-finishing is enough for metal ...

... compressed, maintained and cooled.

The part after welding.

Connection quality control.

Universal method of ultrasonic parts control.

The screen shows a marriage in the connection.

Now active ultrasonic control is increasingly used during the welding process itself.

The sensors of the device are installed ...

... contact with the part.

The methods of diffusion welding in vacuum are continuously being improved.

Even now, it is possible to combine the assembly of a part and its welding in one process.

A part made of a metal and ceramic joint.

It is possible to mold and weld a metal powder product.

To connect porous materials ...

... without changing their physical and mechanical properties.

Welding multi-position devices are being created, which can significantly increase labor productivity.

Previously, the details of the presented turbine were connected by riveting, now by welding immediately over the entire surface.

At the same time ...

... components can be combined.

Welding is carried out under excessive pressure in an inert gas environment.

Installation with software control.

Samples of the connection of quartz glass with metal, ferrites with metals.

Connection of magnetic hard and soft materials.

Vacuum welding is widely used in the tool ...

... tool industry.

Lathe cutter.

Milling cutter.

A stamp obtained by diffusion welding.

Operation of the vacuum welding unit.

A spaceship takes off into space.

Docking of spacecraft.

Close-up: an arc Molten metal.

Horn.

Forge.

Welding.

Welding machines in the factory.

Gas welding.

Cylinders.

Atsitilen - reaction.

Burners (MLT scheme).

cutter work.

Torch - zone.

Melting doped, large joints.

Very large welding.

Seam examples fluxes.

Examples of work.

Welding.

With flux chandeliers.

Surfacing.

Cutting.

Large.

Thick metal.

Figured cutting.

flame job.

Semiautomatic.

Cutting a circle, and curly.

... beam cuts metal of a complex configuration.

Alternating frames with materials that can be cut with a laser.

Large-scale laser welding.

A sample of the seam during laser welding.

Laser processing of materials.