The invention discloses a preparation method of a hot stamping door ring. The preparation method comprises the following steps: carrying out a laser uncoiling blanking process on a steel plate for thermal forming to obtain a top material sheet, a B column material sheet, an A column material sheet, an H column material sheet and a threshold material sheet; tailored blank laser welding is conducted on the top material piece and the column B material piece together to form a first tailored blank laser welding material piece, and tailored blank laser welding is conducted on the column A material piece and the column H material piece together to form a second tailored blank laser welding material piece; the two laser tailor-welded material pieces are subjected to laser tailor-welded together to form an open door ring material piece; the open door ring material piece and the doorsill material piece are connected together through a spot welding technology to form a closed door ring material piece; carrying out hot stamping on the closed door ring material sheet to obtain a door ring hot stamping part; performing laser cutting on the door ring hot stamping part to obtain a door ring laser part; and welding spot repairing is carried out on the doorsill of the door ring laser piece to form the hot stamping door ring. By adopting the preparation method, the tailored blank laser welding difficulty can be reduced, the tailored blank laser welding cost can be saved, and the rigidity of the hot stamping process part can be improved.
本发明公开了一种热冲压门环的制备方法,包括:对热成型用钢板进行激光开卷落料工艺得到顶部料片、B柱料片、A柱料片、H柱料片和门槛料片;将顶部料片和B柱料片激光拼焊在一起形成第一激光拼焊料片,并将A柱料片和H柱料片激光拼焊在一起形成第二激光拼焊料片;将两个激光拼焊料片激光拼焊在一起形成开口门环料片;采用点焊工艺将开口门环料片与门槛料片连接在一起形成闭口门环料片;对所述闭口门环料片进行热冲压得到门环热冲压件;对门环热冲压件进行激光切割得到门环激光件;对门环激光件的门槛处进行补打焊点以形成所述热冲压门环。采用该制备方法既能降低激光拼焊难度,节省激光拼焊成本,又能提高热冲压过程件的刚度。
Preparation method of hot stamping door ring
一种热冲压门环制备方法
28.03.2025
Patent
Elektronische Ressource
Chinesisch
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