The illustrations to magnetic pulse stamping of the printed 

circuit boards for electrical engineering.

(the tools and experimental results) 
 
 

Kharkov 2000
 
 
 
 
 
 
 

Annotation.

The suggested method essence consists in a demanded picture stamping on a cooper foil by magnetic pressure forces. The given method of the printed circuit boards production is a practical issue of some investigations according to a force interaction of penetrating electromagnetic fields with thin-walled conductors. These science works have been carried out at the Kharkov State Polytechnical University beginning from 1985 year. The main results of these works were given at a list of publications what is cited hereunder.

For the time being two approaches to practical realization of the suggested method were tested experimentally:

*A picture of circuit conducting elements is being stamped on a separate sheet metal foil and then, after the magnetic pulse action, it will be glued on a dielectric plate with demanded dimensions;

*A picture of circuit conducting elements is being stamped on the cooper foil glued on a dielectric base beforehand (a ready product --the printed circuit board is being got after the magnetic pulse action!)

These works were carried out at a magnetic pulse installation MIU-10 with stored energy 10 kJ and working voltage till 20 kV (this installation was elaborated and created at the Kharkov State Polytechnical University).

The given illustrations contain some photographs of the technological equipment main components, which illustrate visually the suggested method essence and a typical view of some tools for its practical realization.

Here are given some experimental specimens -- the ready printed circuit boards for the charging rectifying device D2-10M working in a power circuit of the micro calculators

"Electronica".

The suggested technology of the printed circuit boards production, unlike the known chemical method manufacture, quite accords to the modern industry main requests: ecological purity, energy and resources saving, high productivity, low cost (dozens times less in comparison with the chemical method!). 
 
 

LITERATURE.

1.BATYGIN YU.V., The moving and deformation of the thin-walled conductors in the magnetic fields. // Technical Electro-dynamics. 1989, #3, p.15-21.

2.BATYGIN YU.V.,DEMIDOVA S.A., KHIMENKO L.T., The analytical integration of the field equations in the moving conductor. // Technical Electro-dynamics. 1990, #1, p.9-15.

3.BATYGIN YU.V., The calculation of the magnetic field distribution in thin-walled Ferro-magnetic plate by the indignation method. // Electricity. 1990, #2, p.78-81.

4.BATYGIN YU.V., GORKIN L.D., LEGEZA A.V., and others, The experimental investigations of the magnetic pulse method possibilities for thin-walled metal plates deformation.// Technical Electro-dynamics. 1990, #5, p.15-19.

5. BATYGIN YU.V.,SAPELKIN S.A., KHIMENKO L.T., The electrical dynamical and heat processes in the thin-walled two-metal coils of the solenoids. // Technical Electro-dynamics.1991, #1, p.3-8.

6.BATYGIN YU.V., GORKIN L.D.,LEGEZA A.V. and others, Experimental basis of

magnetic pulse method perspectiveness for the printed circuit boards production in

electrical engineering.// Technical Electro-dynamics .1992,No.6.,p.44.

7. BATYGIN YU.V.,Field penetration through thin sheets in inductor systems of

magnetic pulse installations.// Technical Electro-dynamics.1993, No.1,p.20.

8. BATYGIN YU.V., BONDARENKO A.YU., Correlation between tangent

components of electromagnetic field vectors on thin-walled conductor

surface.// Technical Electro-dynamics ­ƒ. 1997, ’Ññ5, ‹Å.3-5.

9.BATYGIN YU.V., GORKIN L.D., LAVINSKY V.I. and others, The experimental

investigation of the magnetic pulse stamping of the printed circuit boards for electrical

circuits arrangement. // Technical Electro-dynamics. 2000, #3, p.7-9.

10.Batygin, Yuri.V. and Daehn, Glenn S., The Pulse Magnetic Fields for Progressive Technologies. 2000 January. ’Äî 280 pages. Published electronically at "www.osu.edu / hyperplasticity / EMBook".

Investigation subject -- a printed circuit board for

a charging rectifying device D2-10M.

A specimen #2 on the picture (the right hand).
A specimen #1 on the picture (the left hand).

The tools of the magnetic pulse method for the printed 

circuit boards stamping.

(inductor systems)

*A flat inductor system with paired current- carrying conductors 

(a total view!);

*The inductor (source of the magnetic field) on a dielectric base -- on the right, the dielectric matrix with a steel cover -- on the left. 


 
 
 
 

*An one-turn inductor with a hyperbolic profile in a working zone;

*The inductor -- is at a central part, the inductor with current-entrances in assembly -- is on the left, some elements of a construction's binding -- are on the right and on the upper part. 


 
 
 
 
 
 

The experimental specimens of the printed circuit boards

stamped by the magnetic pulse action. 

*The experimental specimens, which were got under the ordered picture stamping on the separate big sheets of the cooper foil in the inductor system with paired current-carrying conductors. 

*The specimen #1 (on the left) was got under working voltage 13.8 kV;

*The specimen #2 (on the center) was got under working voltage 16.2 kV;

*The specimen #3 (on the right) is the ready printed circuit board for the device D2-10M. 

The foot-note: The dimensions of the sheets (work-pieces) provided 

flowing of induced whirl-wind currents along closed 

circuits in the foil metal. 

*The experimental specimens, which were got under the ordered picture stamping on the separate small sheets of the cooper foil in the inductor system with paired current-carrying conductors. 

*The specimen #1 (on the left) was got under working voltage 13.8 kV;

*The specimen #2 (on the center) was got under working voltage 16.2 kV;

*The specimen #3 (on the right) is the ready printed circuit board for the device D2-10M. 

The foot-note 1: The dimensions of the sheets (work-pieces) did not provide 

flowing of induced whirl-wind currents in the foil metal. The 

closed circuits existed particularly in the steel cover of the 

matrix.

The foot-note2: The ready printed circuit board is being got after magnetic 

pulse action immediately.


 
 
 
 
 
 
 
 
 
 

*The experimental specimens, which were got under the ordered picture stamping on the sheets of the cooper foil, which were glued on the dielectric plate with the ordered dimensions beforehand, in the inductor system with paired current-carrying conductors. 

*The specimen #1 (on the left) was got under working voltage 13.8 kV;

*The specimen #2 (on the center) was got under working voltage 16.2 kV;

*The specimen #3 (on the right) was got under working voltage 17.8 kV.


 
 


 
 
 
 

*The experimental specimens, which were got in the inductor system with the one-turn solenoid of the hyperbolic profile in the working zone. 

*The specimen #1 (on the left) was got by stamping of the ordered picture in the separate sheet of the foil under working voltage 16.2 kV ;

*The specimen #2 (on the right) was got by stamping of the ordered picture in the foil, what was glued beforehand on the dielectric plate, under working voltage 17.6 kV.
 
 
 
 
 
 


 
 

*The magnetic pulse stamping of some complicated pictures of the printed circuit boards (the tool ’Äî is the inductor with paired current-carrying conductors).

*The specimen #1 illustrates stamping of the ordered picture in the separate foil, the working voltage is 13.8 kV;

*The specimen #2 illustrates stamping of the ordered picture in the foil glued beforehand on the dielectric plate, the working voltage is 14.9 kV;

*The specimen #3 illustrates stamping of the picture separate part in the foil glued beforehand on the dielectric plate, the working voltage is 14.9 kV.

The foot-note: A working voltage lowering is being explained by decreasing of 

thickness of the printed circuit board dielectric base till 0.5 mm 

(it was 1 mm before!). 

ADDITION. 

The economical indices estimates of the printed circuit boards production

for the rectifying-charging device D2-10M.

The economical indices of some concrete product ’Äî the printed circuit board for the rectifying-charging device D2-10M (what is used for work in the circuit of the micro-calculators "Electronica") -- will be given.

A specimen of this product has been made by the magnetic-pulse method at the Kharkov State Polytechnical University.

oDimensions: 4.0*2.5 cm2, a square is 10cm2;

oA raw material cost is 0.0063$;

oA maximum cost of 1 printed circuit board making is 0.0075$;

oA general cost (if to take in account the raw material cost) of 1 printed circuit board making is 0.0075 + 0.0063 = 0.014$ (the spend electrical energy cost is less than 0.1% of the production general cost!) ;

oIn accordance with the technical characteristics of the used equipment 1200 units can be stamped during 1work hour (4 units in 1 discharge, 300 discharges/hour);

oThe production cost of 1200 units during 1 work hour is 16.6$; 

oIf to take the famous economical data as a rough guide, a full production cost of 1200 units during 1 work hour has to be ~ 16.6*10 = 166$ (this figure takes in account all necessary expenditures for management of suggested manufacture!);

oIf to sale 1 printed circuit board 0.2$ for one unit (it is 3ˆ…5 times lower of existing prices!) a pure profit in the 1 work hour producing (volume ’Äî 1200 units) will be:

0.2*1200 ’Äî 166 = 240 ’Äî 166 = 74$;

oIf 8-hour work day takes a place, the pure profit in a day will be 592$ 

(9600 units!);

oIf the equipment costs 30000$, it pays for itself in ~ 51 days (490000 units!)!

Conclusion: 

After 2 months of work the suggested manufacture 

will give a pure Daily Profit about 600$!!!