公开(公告)号：US09770750B2

公开(公告)日：2017-09-26

申请号：US14360079

申请日：2012-10-16

申请人： ThyssenKrupp Steel Europe AG

发明人： Janko Banik ,  Sascha Sikora ,  Maria Koeyer ,  Thomas Struppek

IPC分类号： B21D37/16 ,  B21D22/02 ,  B21D22/20 ,  C21D1/673 ,  C21D1/22

CPC分类号： B21D22/022 ,  B21D22/208 ,  B21D37/16 ,  C21D1/22 ,  C21D1/673

摘要： A method and forming tool for hot forming and press hardening plate-shaped or preformed workpieces of sheet steel, wherein the workpiece is heated to a temperature above the austenitisation temperature and is then formed and quenched in a cooled forming tool having a punch and a female mold, wherein the female mold is coated in its drawing edge region with material in a material-uniting manner and/or is provided there with at least one insert part having a thermal conductivity at least 10 W/(m*K) lower than the thermal conductivity of the portion of the female mold adjacent to the drawing edge region and comes into contact with the workpiece when said workpiece is being hot formed and press hardened, the surface of the material having a transverse dimension within the range of 1.6 times to 10 times the positive radius of the female mold.

公开(公告)号：US09725782B2

公开(公告)日：2017-08-08

申请号：US14371481

申请日：2013-01-11

申请人： Nippon Steel & Sumitomo Metal Corporation

发明人： Toshiki Nonaka ,  Satoshi Kato ,  Kaoru Kawasaki ,  Toshimasa Tomokiyo

IPC分类号： C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/18 ,  C21D8/02 ,  C23C2/06 ,  C23C2/12 ,  C23C2/26 ,  C23C2/28 ,  C23C2/02 ,  C21D9/46 ,  C22C38/00 ,  C22C38/08 ,  C22C38/16 ,  C22C38/22 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C21D1/673

CPC分类号： C21D8/0263 ,  C21D1/673 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0284 ,  C21D9/46 ,  C21D2211/008 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C22C38/22 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C23C2/02 ,  C23C2/06 ,  C23C2/12 ,  C23C2/26 ,  C23C2/28 ,  Y10T428/12757 ,  Y10T428/12799

摘要： In a hot stamped steel, when [C] represents an amount of C (mass %), [Si] represents an amount of Si (mass %), and [Mn] represents an amount of Mn (mass %), an expression of 5×[Si]+[Mn])/[C]>10 is satisfied, a metallographic structure includes 80% or more of a martensite in an area fraction, and optionally, further includes one or more of 10% or less of a pearlite in an area fraction, 5% or less of a retained austenite in a volume ratio, 20% or less of a ferrite in an area fraction, and less than 20% of a bainite in an area fraction, TS×λ, which is a product of TS that is a tensile strength and λ that is a hole expansion ratio is 50000 MPa·% or more, and a hardness of the martensite measured with a nanoindenter satisfies H2/H1

公开(公告)号：US20170218473A1

公开(公告)日：2017-08-03

申请号：US15328469

申请日：2015-07-21

申请人： voestalpine Stahl GmbH

发明人： Michael Haslmayr ,  Siegfried Kolnberger ,  Thomas Kurz ,  Leopold Stegfellner ,  Andreas Sommer

IPC分类号： C21D9/46 ,  C21D1/673 ,  C21D1/52 ,  C21D1/42 ,  F27B9/36 ,  F27B9/06

CPC分类号： C21D9/46 ,  C21D1/34 ,  C21D1/40 ,  C21D1/42 ,  C21D1/52 ,  C21D1/673 ,  C21D2211/001 ,  C21D2221/00 ,  F27B9/062 ,  F27B9/068 ,  F27B9/36 ,  F27B2009/124 ,  Y02P10/253

摘要： A method for heating a blank or a preformed steel sheet component for hot forming and/or quench hardening purposes. In at least some regions, the heating is carried out to a temperature above AC3; the heating of the Hank is embodied as a rapid heating and to this end, the blank is heated in a first zone at an average heating rate of >25 K/s up to about 600° C. and above this temperature, is heated at an average heating rate of >10 K/s up to a maximum of the AC3 temperature and then is transferred to a second zone in which the blank that has been preheated in the first zone is heated in at least some regions to temperatures greater than AC3, in particular >850° C., with the heating rate in the second zone being >10 K/s. The invention also relates to a device for carrying out the method.

公开(公告)号：US09669459B2

公开(公告)日：2017-06-06

申请号：US13661793

申请日：2012-10-26

申请人： FORD MOTOR COMPANY

发明人： Bradley D. Guthrie ,  Venkat Nara ,  Paul Harrison ,  Ronald H. Hasenbusch

IPC分类号： B22D25/06 ,  B22D17/20 ,  B22D29/00 ,  B22D30/00

CPC分类号： C21D9/0068 ,  B22D17/002 ,  B22D17/08 ,  B22D17/2007 ,  B22D17/2236 ,  B22D17/32 ,  B22D29/00 ,  B22D30/00 ,  C21D1/58 ,  C21D1/60 ,  C21D1/667 ,  C21D1/673 ,  C21D9/0062 ,  F02F7/0021 ,  F02F7/0053 ,  F02F2200/06

摘要： A system and method of making a part. The part may cast in a die. A gripper assembly may be provided that has a gripper and a spray nozzle that provides a fluid. The part may be quenched with a fluid when the part is in the die.

公开(公告)号：US20170096724A1

公开(公告)日：2017-04-06

申请号：US15128559

申请日：2015-03-26

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Kazuo HIKIDA ,  Shinichiro TABATA ,  Nobusato KOJIMA ,  Takahiro MORIKI

IPC分类号： C21D9/46 ,  C23C2/06 ,  B22D11/00 ,  C22C38/54 ,  C22C38/50 ,  C22C38/48 ,  C22C38/32 ,  C22C38/28 ,  C22C38/26 ,  C22C38/24 ,  C22C38/22 ,  C22C38/20 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D8/02 ,  C23C2/40 ,  C25D3/22

CPC分类号： C21D9/46 ,  B22D11/001 ,  C21D1/673 ,  C21D8/021 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0263 ,  C21D9/48 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  C23C2/02 ,  C23C2/06 ,  C23C2/12 ,  C23C2/40 ,  C25D3/22

摘要： A high-strength hot-formed steel sheet member exhibiting both a consistent hardness and delayed-fracture resistance, and is characterized in that: the high-strength hot-formed steel sheet member has a prescribed chemical composition; the degree of Mn segregation α (=[maximum Mn concentration (mass %) at the sheet center in the thickness direction]/[average Mn concentration (mass %) at a depth of ¼ of the total thickness of the sheet from the surface]) is less than or equal to 1.6; the steel purity value as defined in JIS G 0555 (2003) is less than or equal to 0.08%; the average grain size for prior γ grains is less than or equal to 10 μm; and the number density of the residual carbides is less than or equal to 4×103 particles/mm2.

公开(公告)号：US20170073790A1

公开(公告)日：2017-03-16

申请号：US15123701

申请日：2015-03-25

申请人： Magna Powertrain Inc.

发明人： John R. SABO ,  Sokol SULAJ

IPC分类号： C21D9/32 ,  B23P15/14 ,  C21D1/74 ,  C21D1/673 ,  C22C38/04 ,  F16H41/24 ,  F16H39/08 ,  F16H57/08 ,  F16H57/037 ,  F16H57/032 ,  F16H57/04 ,  B21D53/28 ,  F16D23/00

CPC分类号： C21D9/32 ,  B21D53/28 ,  B23P15/14 ,  C21D1/34 ,  C21D1/673 ,  C21D1/74 ,  C21D2221/00 ,  C22C38/04 ,  F16D13/683 ,  F16D23/00 ,  F16D2300/12 ,  F16D2300/26 ,  F16H39/08 ,  F16H41/24 ,  F16H57/032 ,  F16H57/037 ,  F16H57/0452 ,  F16H57/082

摘要： A method for forming a component utilizing ultra-high strength steel and components formed by the method. The method includes the step of providing a flat blank of ultra-high strength 22MnB5 steel. The next step of the method is, cold forming the flat blank into an unfinished shape of a component while the blank is in an unhardened state. The method continues by providing an inert atmosphere. Then, heating the unfinished shape of the component in the inert atmosphere. The method proceeds by forming a finished shape of the component using a quenching die resulting in a fine-grained martensitic component material structure and enabling net shape processing to establish fmal geometric dimensions of the components.

摘要翻译： 一种利用超高强度钢形成部件的方法和通过该方法形成的部件。 该方法包括提供超高强度22MnB5钢的扁平坯料的步骤。 该方法的下一步是在坯料处于未硬化状态的同时将扁平坯料冷成型为未完成的部件形状。 该方法继续通过提供惰性气氛。 然后，在惰性气氛中加热组分的未完成形状。 该方法通过使用淬火模具形成成型件的成品形状，得到细粒马氏体组分材料结构，并且能够进行净形状处理以建立部件的最小几何尺寸。

公开(公告)号：US20160339497A1

公开(公告)日：2016-11-24

申请号：US15114955

申请日：2015-02-17

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Anil K. Sachdev ,  John T. Carter ,  Raja K. Mishra ,  John E. Carsley

IPC分类号： B21D22/02 ,  B21D53/88

CPC分类号： B21D22/022 ,  B21D53/88 ,  C21D1/673 ,  C22F1/04

摘要： Methods suitable for forming complex parts from work-hardened sheet materials of limited formability are described. The formability of the work-hardened sheet is enhanced by forming at elevated temperature. The forming temperature is preferably selected to minimally undo the effects of work hardening so that the formed part is of higher strength than a like part formed from an annealed sheet. The method is applicable to age-hardening and non-age-hardening aluminum and magnesium alloys.

摘要翻译： 描述了适用于由成形性有限的加工硬化片材形成复杂部件的方法。 加工硬化片材的成型性通过在升高的温度下成形来提高。 优选选择成形温度以最小程度地消除加工硬化的影响，使得成形部件比由退火板形成的相似部件具有更高的强度。 该方法适用于老化硬化和非老化硬化铝镁合金。

公开(公告)号：US09493868B2

公开(公告)日：2016-11-15

申请号：US14364357

申请日：2012-12-10

申请人： JFE Steel Corporation ,  Tokyo Institute of Technology

发明人： Tooru Tsuru ,  Toshio Maruyama ,  Tatsuo Sato ,  Masao Takeyama ,  Masahiro Yoshida ,  Sakae Fujita ,  Sachiko Suzuki ,  Satoru Ando ,  Hiroki Nakamaru

IPC分类号： B32B15/01 ,  C22C21/00 ,  C23C2/12 ,  C22C21/06 ,  C23C2/28 ,  C21D8/04 ,  C21D1/673

CPC分类号： C23C2/12 ,  C21D1/673 ,  C21D8/0473 ,  C21D8/0478 ,  C21D2211/004 ,  C22C21/06 ,  C23C2/28 ,  Y10T428/12757

摘要： An aluminum or aluminum alloy-coated steel material includes base steel; and a coating layer formed on a surface of the base steel and containing by mass % Mg: 6% to 10%, Si: 3% to 7%, Fe: 0.2% to 2%, Mn: 0.02% to 2%, and the balance as Al and incidental impurities, wherein the coating layer has pseudoternary eutectic microstructures of αAl—Mg2Si—(Al—Fe—Si—Mn) and an area ratio of the pseudoternary eutectic microstructures in the coating layer is at least 30%.

摘要翻译： 铝或铝合金涂层钢材包括基体钢; 以及以质量％的Mg：6〜10％，Si：3〜7％，Fe：0.2〜2％，Mn：0.02〜2％的比例含有的涂层， 作为Al和偶然杂质的平衡，其中涂层具有αAl-Mg2Si（（Al-Fe-Si-Mn））的假三元共晶微结构，并且涂层中的假三元共晶微结构的面积比至少为30％。

公开(公告)号：US20160326608A1

公开(公告)日：2016-11-10

申请号：US15109582

申请日：2014-01-06

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Koutarou HAYASHI ,  Toshinobu NISHIBATA

IPC分类号： C21D9/46 ,  C21D8/02 ,  C23C2/06 ,  C23C2/28 ,  C22C38/28 ,  C22C38/22 ,  C22C38/14 ,  C22C38/12 ,  C22C38/08 ,  C22C38/16 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D1/18

CPC分类号： C21D9/46 ,  B32B15/013 ,  C21D1/18 ,  C21D1/673 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0273 ,  C21D9/00 ,  C21D9/48 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/22 ,  C22C38/28 ,  C23C2/06 ,  C23C2/28

摘要： A hot-formed member according to the present invention has a predetermined chemical composition, a metallographic microstructure in which, in terms of area %, ferrite is 10% to 90%, unrecrystallized ferrite is 0% to 2.0%, martensite is 10% to 90%, the total area ratio of the ferrite and the martensite is 90% to 100%, and the average grain size of the ferrite is 0.5 μm to 5.0 μm, and the tensile strength of 900 MPa to 1800 MPa.

摘要翻译： 根据本发明的热成型体具有预定的化学成分，金相组织，其中以铁素体的面积％计为10〜90％，未再结晶的铁素体为0〜2.0％，马氏体为10％〜 90％，铁素体和马氏体的总面积比为90％〜100％，铁素体的平均粒径为0.5〜5.0μm，拉伸强度为900MPa〜1800MPa。

公开(公告)号：US09475107B2

公开(公告)日：2016-10-25

申请号：US14172427

申请日：2014-02-04

申请人： Benteler Automobiltechnik GmbH

发明人： Andreas Frehn ,  Ralf Ilskens ,  Dominik Howekenmeier ,  Jeffrey M. Hatt

IPC分类号： C21D9/00 ,  B21B1/08 ,  C21D1/18 ,  C21D1/20 ,  C21D1/673

CPC分类号： B21B1/08 ,  B60G2206/121 ,  B60G2206/20 ,  B60G2206/722 ,  B60G2206/81035 ,  B60G2206/8109 ,  B60G2206/8201 ,  C21D1/18 ,  C21D1/20 ,  C21D1/673 ,  C21D9/00 ,  C21D9/0068 ,  C21D2261/00

摘要： A method for producing a motor vehicle axle component includes the method steps of providing a metal strip made of a hardenable steel material, hot rolling the metal strip and subsequent cold rolling with more than 4% rolling reduction degree, annealing at 600 to 800° C., in particular at 650 to 750° C. for a time period between 10 and 20 hours, in particular 13 to 17 hours, cutting the heat treated metal strip to cut sheet metals, forming the metal cut into a motor vehicle axle component, austenizing and quenching the motor vehicle axle component, wherein the motor vehicle axle component has at least in a surface region a grain size characteristic value according to ASTM-E 112 of greater than 9.

摘要翻译： 一种机动车辆车轴部件的制造方法，其特征在于，具有如下工序：提供由可硬化钢材制成的金属带，热轧所述金属带，随后的冷轧以4％以上的压下率进行退火，在600〜800℃退火 特别是在650〜750℃下进行10〜20小时，特别是13〜17小时的时间，切割经热处理的金属带切割金属片，将金属切割成机动车车轴部件， 对所述机动车车轴部件进行奥氏体化和淬火，其中，所述机动车辆轴部件至少在表面区域具有根据ASTM-E 112大于9的粒度特征值。