Menetelmä metallipinnoitetun ja kuumamuokatun teräskomponentin valmistamiseksi ja metallipinnoitettu teräsnauhatuote;Förfarande för att framställa en metallbelagd och varmbearbetad stålkomponent och metallbelagd stålbandsprodukt

Mika Laatikainen; Pasi Peura; Arimo Lankila; Oskari Lyytinen

Menetelmä metallipinnoitetun ja kuumamuokatun teräskomponentin valmistamiseksi ja metallipinnoitettu teräsnauhatuote;Förfarande för att framställa en metallbelagd och varmbearbetad stålkomponent och metallbelagd stålbandsprodukt

Mika Laatikainen (Inventor), Pasi Peura (Inventor), Arimo Lankila (Inventor), Oskari Lyytinen (Inventor)

Research output: Patent

Abstract

The present invention relates to a method for manufacturing a metal coated and hot-formed steel component by direct hot-forming techniques and to a metal coated steel strip product for direct hot-forming. Improvements in mechanical properties of the metal coated and hot-formed steel component are difficult to be obtained without weakening the weldability. According to the invention, the grain structure of a metal coated steel strip made of hardenable steel alloy is deformed comprising non-recrystallized grains and a yield ratio (YS/TS) of said steel strip is higher than 0.75. Recrystallization of said grain structure is at least retarded or even totally avoided or leaved out prior to and during applying metal coating on the surface of the steel strip. This kind of material cannot be used in indirect press hardening, but fits excellently to direct hot press forming and provides possibility to affect mechanical properties without weakening weldability.

Original language	Finnish
Patent number	FI20135173
IPC	C25D 3/ 00 A N
Priority date	22/02/13
Publication status	Published - 13 Feb 2015
Publication type	H1 Granted patent

Cite this

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title = "Menetelm{\"a} metallipinnoitetun ja kuumamuokatun ter{\"a}skomponentin valmistamiseksi ja metallipinnoitettu ter{\"a}snauhatuote;F{\"o}rfarande f{\"o}r att framst{\"a}lla en metallbelagd och varmbearbetad st{\aa}lkomponent och metallbelagd st{\aa}lbandsprodukt",

abstract = "The present invention relates to a method for manufacturing a metal coated and hot-formed steel component by direct hot-forming techniques and to a metal coated steel strip product for direct hot-forming. Improvements in mechanical properties of the metal coated and hot-formed steel component are difficult to be obtained without weakening the weldability. According to the invention, the grain structure of a metal coated steel strip made of hardenable steel alloy is deformed comprising non-recrystallized grains and a yield ratio (YS/TS) of said steel strip is higher than 0.75. Recrystallization of said grain structure is at least retarded or even totally avoided or leaved out prior to and during applying metal coating on the surface of the steel strip. This kind of material cannot be used in indirect press hardening, but fits excellently to direct hot press forming and provides possibility to affect mechanical properties without weakening weldability.",

author = "Mika Laatikainen and Pasi Peura and Arimo Lankila and Oskari Lyytinen",

year = "2015",

month = feb,

day = "13",

language = "Suomi",

type = "Patent",

note = "FI20135173; C25D 3/ 00 A N",

}

Menetelmä metallipinnoitetun ja kuumamuokatun teräskomponentin valmistamiseksi ja metallipinnoitettu teräsnauhatuote;Förfarande för att framställa en metallbelagd och varmbearbetad stålkomponent och metallbelagd stålbandsprodukt. / Laatikainen, Mika (Inventor); Peura, Pasi (Inventor); Lankila, Arimo (Inventor) et al.
Patent No.: FI20135173. Feb 13, 2015.

Research output: Patent

TY - PAT

T1 - Menetelmä metallipinnoitetun ja kuumamuokatun teräskomponentin valmistamiseksi ja metallipinnoitettu teräsnauhatuote;Förfarande för att framställa en metallbelagd och varmbearbetad stålkomponent och metallbelagd stålbandsprodukt

AU - Laatikainen, Mika

AU - Peura, Pasi

AU - Lankila, Arimo

AU - Lyytinen, Oskari

PY - 2015/2/13

Y1 - 2015/2/13

N2 - The present invention relates to a method for manufacturing a metal coated and hot-formed steel component by direct hot-forming techniques and to a metal coated steel strip product for direct hot-forming. Improvements in mechanical properties of the metal coated and hot-formed steel component are difficult to be obtained without weakening the weldability. According to the invention, the grain structure of a metal coated steel strip made of hardenable steel alloy is deformed comprising non-recrystallized grains and a yield ratio (YS/TS) of said steel strip is higher than 0.75. Recrystallization of said grain structure is at least retarded or even totally avoided or leaved out prior to and during applying metal coating on the surface of the steel strip. This kind of material cannot be used in indirect press hardening, but fits excellently to direct hot press forming and provides possibility to affect mechanical properties without weakening weldability.

AB - The present invention relates to a method for manufacturing a metal coated and hot-formed steel component by direct hot-forming techniques and to a metal coated steel strip product for direct hot-forming. Improvements in mechanical properties of the metal coated and hot-formed steel component are difficult to be obtained without weakening the weldability. According to the invention, the grain structure of a metal coated steel strip made of hardenable steel alloy is deformed comprising non-recrystallized grains and a yield ratio (YS/TS) of said steel strip is higher than 0.75. Recrystallization of said grain structure is at least retarded or even totally avoided or leaved out prior to and during applying metal coating on the surface of the steel strip. This kind of material cannot be used in indirect press hardening, but fits excellently to direct hot press forming and provides possibility to affect mechanical properties without weakening weldability.

M3 - Patentti

M1 - FI20135173

ER -