MAGNET-PHYSIK - MagnetoPulS

MAGNET-PHYSIK Dr. Steingroever GmbH, Germany


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Shaping Technique

MagnetoPulS^®

Content

	General Description
	Method
	Which metal parts can be shaped?
	Further applications
	Examples of use
	Features
	Metal Shaping

CONTACT-FREE

Shrinking
Shaping
Connecting
Bordering
Attaching of fittings
NE-metal/steel/plastics

Patents granted / pending respectively

General Description

The new development of magnet-physik MagnetoPulS^® enables a contact-free shaping of materials, especially those in cylindrical shapes which are to be combined with each other. This combination is high-pressure-safe.

The contact-free shaping is mainly used for pipes and rings of materials which can be shaped mechanically, i.e. copper, aluminium and light alloys. Examples of shapes and contact-free shaping of parts can be taken from the drawings in this prospective.

By the shaping process the coatings of the parts to be shaped are not damaged. All in all this leads to a careful product treatment as well as to an ecologically beneficial process.

Result: No SOLDERING, no WELDING, no GLUEING, no SCREWING and nevertheless the combination of different parts and materials to one finished product is achieved.

Method

New Impulse magnetizers MagnetoPulS^® enable the easy shaping of materials in many cases, especially those in cylindrical shapes which are to be pressed on another body.
		MagnetoPulS^® equipment which have been developed for this purpose produce especially high current impulses up to 500 kA and quick magnetic field impulses up to 200000 A/cm in 0,1 ms. The shaping of e.g. a ring of metal in a magnetic field is achieved by the combination of the magnetic field B of a current I₁ and the current I₂ induced in the ring. It is proportional to the product K = B • I₂.

The picture shows schematically how the magnetic field is concentrated in the gap between the conductors which causes a high pressure on the inner part.

Graphic: Impulse tool (Field concentrator)

The force K can clearly be seen in the course of the magnetic field which squeezes
the ring.

Which metal parts can be shaped ?

Mainly pipes and rings of materials which can be shaped mechanically, e.g. copper, aluminium and light metal alloys and also steels and alloys with a suitable flow behaviour.

At the moment tools with the following dimensions are available:

13 mm Ø x 16 mm	19 mm Ø x 16 mm
23 mm Ø x 20 mm	26 mm Ø x 16 mm
32 mm Ø x 20 mm	37 mm Ø x 33 mm
42 mm Ø x 27 mm	64 mm Ø x 16 mm

Other dimensions can be manufactured on request.

The parts to be shaped should fit in these tools with a little space. They should be smaller in diameter by max. 1 - 3 mm.

Further applications

Connection of a fuel filler cap

Examples of use

Examples for the shaping of parts with MagnetoPulS^®-devices:

1 = Shaping combination of 2 pipes
2 = Shaping combination of 2 pipes my means of a cuff
3 = Shaping combination of 2 pipes with different diameters
4 = Shaping combination of one pipe with one fitting
5 = Shaping combination of a steel tube and a fitting with an Al-cuff

Graphic: magnet rotor with a shrink ring

Combination of the parts of a magnet rotor with a shrink ring in the MagnetoPulS^®- equipment.

N, S = Permanent magnets
Fe = Iron core
SR = Shrink ring, Light metal

The arrows show the magnetic shaping force on the shrink ring.

Creation of dent structure of high firmness in tubes of Cu- or Al-alloys. To be used as heat-exchangers, liquid mixers, sound absorbers, fluid mechanics and as well-designed components for lamps etc.

HYCOT^© tube with fitting

The MagnetoPulS^® method achieves a high-pressure safe combination, without damaging the surface in a fully automatic production line
(no pre- or aftertreatment is necessary)

The grab inserts the tube provided with a fitting in the field concentrator

Photo: grab inserting the tube provided with a fitting in the field concentrator

The tube provided with the fitting is in the field concentrator and the impulse current produces a high-pressure safe combination within ms.

Example of a fully automatic MagnetoPulS^® -application with highest process certainty consisting of:
MagnetoPulS^® Magnet-Impulse-Equipment field concentrator etc. and fully automatic handling system

Result: No soldering, no welding, no glueing, no screwing and nevertheless the combination of different parts and materials to one finished product is achieved.

Photo: fully automatic MagnetoPulS®-application

MagnetoPulS^® Features

CONTACT-FREE SHRINKING METHOD
for metal parts (Cu, Al und alloys) by a high, quick magnet impulse
WITHOUT ADHESIVES, solder or glue
NO PRE-TREATMENT, corroding, solder paints
NO AFTER-TREATMENT, cleaning, neutralizing, brushing and thus:
ENVIRONMENTALLY FRIENDLY
HIGH WORKING SPEED : up to 500 parts/h
SIMPLE AND STABLE FIXTURES, easy to exchange
HIGH WORKING SAFETY, by impulse insulation transformer, CE-conformity
COMBINATION of metals which are difficult to solder or weld
COMBINATION metal/plastic
HIGH-PRESSURE-SAFE COMBINATION up to 500 bar
CORROSION-SAFE with fittings
HIGH "RETURN ON INVESTMENT"
COMPLETE AUTOMATION possible
HIGH PROCESS-SAFETY
SHAPING OF YOUR SAMPLES FOR DEMONSTRATION is possible

MagnetoPulS^® Metal Shaping

combination of
T U B E S

with other tubes

with muffs

with fittings

with covers

Cu / Al
and alloys

St, Ms

soft to
semi-hard

F25

250 N/mm²

Cu
thrust collar

- narrow

- widen

5 R I N G S

+

+

----

with thrus Collar

dent

T U B E S

inside

outside

+

+

+

----

combine
and
protect

COMPONENTS

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