-
公开(公告)号：EP3762173B1
公开(公告)日：2022-03-02
申请号：EP19710802.0
申请日：2019-03-07
IPC分类号： B23K9/025 , B21D22/00 , B21D35/00 , B23K9/23 , B23K11/00 , B23K11/11 , B23K11/16 , B23K11/20 , B23K15/00 , B23K20/12 , B23K20/227 , B23K26/26 , B23K26/322 , B23K31/02 , B23K26/323 , B23K26/242 , B21D22/02 , B23K101/18 , B23K101/34 , B23K103/04
-
12.发明公开
公开(公告)号：EP3932578A1
公开(公告)日：2022-01-05
申请号：EP19916684.4
申请日：2019-12-19
发明人： FUJII, Kento , YAMASAKI, Yuji
IPC分类号： B21D22/00
摘要： Provided is a technology for, when press forming into a desired press-formed component, evaluating forming allowance for a bending crack at a sheared end face of the press-formed component from shape information of an actual component and the like. It is a method for, when applying press forming including bending deformation to a metal sheet subjected to shearing to manufacture a desired press-formed component, evaluating forming allowance for a bending crack at a sheared end face being an end face subjected to the shearing. A crack index value for evaluating the bending crack at the sheared end face of the press-formed component is obtained from a bend outer side strain at or near the sheared end face acquired on a basis of a component shape of the press-formed component and a press die bend radius at a portion forming the sheared end face in a press die used in the press forming, and the forming allowance for the bending crack is evaluated by the obtained crack index value.
-
公开(公告)号：EP3925716A1
公开(公告)日：2021-12-22
申请号：EP21172665.8
申请日：2021-05-07
摘要： Die Erfindung betrifft ein Verfahren zum Presshärten von Platinen (1) aus warmumformbarem Stahl mit folgenden Verfahrensschritten:
- eine blanke, unbeschichtete Platine (1) wird durch eine Erwärmungszone (3) transportiert und auf Austenitisierungstemperatur erwärmt,
- während der Erwärmung auf Austenitisierungstemperatur wird Sauerstoffzutritt verhindert,
- die so erwärmte Platine (1) wird unter Vermeidung von Sauerstoffzutritt auf eine Temperatur unter Austenitisierungstemperatur, aber über Martensitstarttemperatur abgekühlt (Zwischenkühlung) (4),
- die Platine (1) wird nachfolgend innerhalb weniger Sekunden in ein Warmumformwerkzeug (5) eingebracht, in dem Werkzeug (5) umgeformt und pressgehärtet,
- die umgeformte Platine (1) wird aus dem Werkzeug entnommen und anderweitig abgelegt.-
公开(公告)号：EP3912745A1
公开(公告)日：2021-11-24
申请号：EP21182444.6
申请日：2014-08-28
摘要： A hydrostatic/hydrodynamic fluid bearing assembly (100) for a can bodymaker (10) is provided. The hydrostatic/hydrodynamic fluid bearing assembly (100) is separate from the ram body (50). The outboard bearing assembly (60) includes a carriage assembly (62) and an outboard guide bearing assembly (60). In this configuration, the ram body (50) may form a can body (10) in a traditional manner, but fluid bearing assembly fluid is not applied to the ram body (50).
-
公开(公告)号：EP3648966B1
公开(公告)日：2021-08-18
申请号：EP18723454.7
申请日：2018-05-04
-
公开(公告)号：EP3805421A1
公开(公告)日：2021-04-14
申请号：EP18920561.0
申请日：2018-05-31
申请人： POSCO
发明人： KIM, Seong-Woo , OH, Jin-Keun , CHO, Yeol-Rae , SHIN, Hyeon-Jeong
摘要： One preferred aspect of the present invention provides: an Al-Fe-alloy plated steel sheet for hot forming, having excellent TWB welding characteristics since excellent hardness uniformity of a TWB weld zone after hot forming is obtained by suitably controlling a batch annealing condition, after plating Al, such that an Al-Fe-alloy layer is formed; a hot forming member; and manufacturing methods therefor.
-
17.发明公开
公开(公告)号：EP3778053A1
公开(公告)日：2021-02-17
申请号：EP19778251.9
申请日：2019-02-25
发明人： KARIYAZAKI, Yuta , YAMASAKI, Yuji
摘要： An object is to suppress falling or rising of an end of a press-formed product and twisting of the press-formed product due to springback so as to suppress a shape defect of the press-formed product due to the springback, and, in designing a shape of a press-formed product produced by press-forming a sheet material, a curvature radius (R1) of a concave curved portion and a curvature radius (R2) of a convex curved portion of a concave and convex curved shape of an additional shape arranged on the press-formed product where the concave curved portion and the convex curved portion are continuous are set to be the same.
-
公开(公告)号：EP3341145B1
公开(公告)日：2020-11-11
申请号：EP16842982.7
申请日：2016-09-01
发明人： ZAUHAR, Mark , BALAMUT, Russ , GADOW, Dave
-
19.发明公开
公开(公告)号：EP3733922A1
公开(公告)日：2020-11-04
申请号：EP18895227.9
申请日：2018-12-21
申请人： POSCO
摘要： A plating steel sheet for hot press forming, according to one aspect of the present invention, includes: a base steel sheet; an Al-Zn-based plating layer formed on at least one surface of the base steel sheet; and an Fe-Al-based surface alloy layer formed between the base steel sheet and the Al-Zn-based plating layer, wherein the Al-Zn-based plating layer can include 10-30 wt% of Zn, 1 wt% or less of Fe, and the balance of Al and impurities.
-
-
-
-
-
-
-
-
-
搜索结果
336 条记录 (耗时 0.022 秒)
