bohlerstrip
NFM Special Strip

Laser welded multi-material strip products for applications in the electronic and automotive industry in the field of non-ferrous-metals - welded strip products made in copper, in the longitude combination with copper alloys or steel for new possibilities for stamped and stamped/bent components.
bohlerstrip<BR>NFM Special Strip

PRESS-FIT-ZONES AND ULTRA SONIC WELDING

For the field of power electronics. Laser welded strips unite two opposing characteristics – for the one part with a high degree of hardness, for the other part with a very low degree of hardness. The copper alloy with a high degree of hardness and rigidity (e.g. CuNiSi or CuNi3SiMg) fulfils the requirements of press-fit zones and is combined with pure copper for ultrasound welding processes with a reduced stress loading on the substrate (DCB) and higher processing security. 


APPLICATION FIELDS
» Power erlectronics
» Semiconductors
» Transistors


SPECIFICATION
Strip thickness flat0,40 / 0,60 / 0,63 / 0,80 / 1,20 mm
Strip thickness with step one component up to 4,00 mm
Strip widthup to 120,00 mm welded strip
Welding seamrolled, flat
optional surfacebrushed, slightly oiled or passivated




PRESS-FIT-ZONES AND ULTRA  SONIC WELDING-IGBT for power electronic with different implemented connection technologies
IGBT for power electronic with different implemented connection technologies zoom
-Controverse material parameter "hard versus soft" in one single strip
Controverse material parameter "hard versus soft" in one single strip zoom

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