公开(公告)号：US09573419B2

公开(公告)日：2017-02-21

申请号：US14518208

申请日：2014-10-20

申请人： NTN Corporation

发明人： Kazunari Yamamoto

IPC分类号： F16C13/00 ,  B60B27/00 ,  F16C33/64 ,  B21K1/40 ,  B21K1/76 ,  B21K23/04 ,  F16C19/08 ,  F16C43/04 ,  F16C33/60 ,  F16C19/18

CPC分类号： B60B27/0005 ,  B21K1/40 ,  B21K1/76 ,  B21K23/04 ,  B60B27/00 ,  B60B2310/208 ,  B60B2310/228 ,  B60B2900/113 ,  B60B2900/311 ,  F16C19/08 ,  F16C19/186 ,  F16C33/60 ,  F16C33/64 ,  F16C43/04 ,  F16C2220/46 ,  F16C2240/54 ,  F16C2326/02

摘要： A wheel bearing apparatus has an outer member, an inner member and double row rolling elements freely rollably contained between double row inner raceway surfaces and outer raceway surfaces of the inner member and the outer member. A plurality of bolt insertion bores, that fastening bolts pass through to fasten to the knuckle, are formed on the body mounting flange at plurality of positions circumferentially along the body mounting flange. The outer member is previously formed by hot forging. A seating surface for the fastening bolts is formed on an outboard-side surface of the body mounting flange by cold forging.

摘要翻译： 车轮轴承装置具有外部构件，内部构件和双列滚动元件，其可自由地滚动地容纳在双列内滚道表面和内部构件和外部构件的外滚道表面之间。 在主体安装凸缘上沿着主体安装凸缘沿周向的多个位置形成有多个螺栓插入孔，紧固螺栓通过以固定到转向节。 预先通过热锻造形成外部构件。 用于紧固螺栓的座面由冷锻形成在车身安装法兰的外侧表面上。

公开(公告)号：US20170044635A1

公开(公告)日：2017-02-16

申请号：US14732974

申请日：2015-06-08

申请人： ASCO INDUSTRIES

发明人： Thomas Sourmail ,  Véronique Smanio

IPC分类号： C21D9/30 ,  C21D7/13 ,  C21D6/00 ,  C21D1/42 ,  C21D1/06 ,  C22C38/04 ,  C22C38/50 ,  C22C38/46 ,  C22C38/44 ,  C22C38/48 ,  C22C38/02 ,  C21D8/00 ,  C22C38/54

CPC分类号： C21D9/30 ,  C21D1/06 ,  C21D1/42 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D7/13 ,  C21D8/005 ,  C21D8/06 ,  C21D8/065 ,  C21D9/28 ,  C21D9/32 ,  C21D2211/002 ,  C21D2221/00 ,  C21D2261/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12 ,  C22C38/18 ,  C22C38/40 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  F16C3/06 ,  F16C2220/46 ,  Y02P10/253

摘要： Steel for which the composition is, in weight percentages: 0.35%≦C≦0.50%; 0.30%≦Mn≦1.50%; trace amounts ≦Cr≦1.50%; 0.05%≦Mo≦0.50%; 0.15≦Si≦1.20%; trace amounts ≦Ni≦1.0%; trace amounts ≦Cu≦1.0%; trace amounts ≦V≦0.35%; trace amounts ≦Al≦0.10%; trace amounts ≦B≦0.005%; trace amounts ≦Ti≦0.10%; trace amounts ≦Nb≦0.10%; trace amounts ≦S≦0.15%; trace amounts ≦Ca≦0.010%; trace amounts ≦Te≦0.030%; trace amounts ≦Se≦0.050%; trace amounts ≦Bi≦0.050%; trace amounts ≦Pb≦0.100%; trace amounts ≦N≦0.020%; the remainder being iron and impurities resulting from the elaboration, and the C, Mn and Cr contents being such that 830-270 C %-90 Mn %-70 Cr %)≦620.

摘要翻译： 钢的组成为重量百分比：0.35％≤C≤0.50％; 0.30％≤Mn≤1.50％; 痕量≤Cr≤1.50％; 0.05％≤Mo≤0.50％; 0.15≤Si≤1.20％; 微量≤Ni≤1.0％ 痕量≤Cu≤1.0％; 痕量≤V≤0.35％; 痕量≤Al≤0.10％; 痕量≤B≤0.005％; 痕量≤Ti≤0.10％; 痕量≤Nb≤0.10％; 痕量≤S≤0.15％; 痕量≤Ca≤0.010％ 痕量≤Te≤0.030％; 痕量≤Se≤0.050％; 痕量≤Bi≤0.050％; 痕量≤Pb≤0.100％; 痕量≤N≤0.020％; 剩余部分为铁和杂质产生的杂质，C，Mn和Cr含量为830-270C％-90Mn％-70Cr％）≤620。

公开(公告)号：US20160250679A1

公开(公告)日：2016-09-01

申请号：US15031294

申请日：2014-11-19

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Kenji TAMURA ,  Junichi OKUBO ,  Koichiro ISHIHARA ,  Ken YOSHINO ,  Kunihiro YABUNO ,  Hiroyuki KUROKAWA ,  Tomohisa YAMASHITA ,  Sho TAKAMOTO

IPC分类号： B21K1/08

CPC分类号： B21K1/08 ,  B21J5/025 ,  B23P15/00 ,  B23P2700/07 ,  F16C3/08 ,  F16C2220/46

摘要： A method for producing a forged crankshaft includes a die forging step, a trimming step, and an excess projecting portion bending step. The die forging step forms a finish forged blank with flash, the finish forged blank including a shape of the crankshaft, in which crank arms have excess projecting portions at outer peripheries of side portions thereof near a crank pin, the excess projecting portions projecting from the outer peripheries. The trimming step removes the flash from the finish forged blank formed in the die forging step. The excess projecting portion bending step bends the excess projecting portions of the crank arms toward a journal-side surface of the crank arm by inserting a first die having a U-shape from a direction of eccentricity of the crank pin to the crankshaft obtained by removing the flash in the trimming step.

摘要翻译： 锻造曲轴的制造方法包括模锻步骤，修整步骤和多余的突出部弯曲步骤。 模锻步骤形成具有闪光的精加工的坯件，精加工的坯件包括曲轴的形状，其中曲柄臂在曲柄销附近的侧部的外周具有多余的突出部分，多余的突出部分从 外围。 修整步骤从在锻模步骤中形成的精加工锻造坯料中去除闪光。 通过从曲柄销的偏心方向插入具有U形的第一模具到通过去除了曲柄轴而获得的曲轴，多余的突出部分弯曲步骤使曲柄臂的多余的突出部分朝向曲柄臂的轴颈侧表面弯曲 闪光灯在修整步骤中。

公开(公告)号：US20160114438A1

公开(公告)日：2016-04-28

申请号：US14786535

申请日：2014-04-22

申请人： NSK LTD.

发明人： Masahito YAMAMOTO ,  Hiroshi KOYAMA ,  Kazuto KOBAYASHI

IPC分类号： B23P15/00 ,  F16C33/62 ,  F16C33/64 ,  F16C33/58

CPC分类号： B23P15/003 ,  B21J1/003 ,  B21K1/04 ,  B21K1/40 ,  F16C33/581 ,  F16C33/585 ,  F16C33/62 ,  F16C33/64 ,  F16C2220/46

摘要： Provided is a method for manufacturing a bearing ring member, whereby processing cost can be reduced and a high degree of freedom in design is obtained, by disposing a metal material of a raw material (13a), the metal material having excellent metal characteristics such as fatigue strength and wear resistance and excellent processing characteristics such as hardenability, in a portion that flows to a portion (raceway surface, etc.) where the characteristics of the metal material are required during use or forging of a bearing ring member. The present invention is configured from a first metal part (23) in which the raw material (13a) is formed in a cylindrical shape, and a second metal part (24) formed in a columnar shape by a metal material having more excellent metal characteristics or processing characteristics than the first metal part (23). For example, the second metal part (24) is disposed in a portion on an inside diameter side of the first metal part (23), which is a portion of the raw material (13a) that flows to an outer raceway (5a, 5b) of an outer ring (2) during forging.

摘要翻译： 提供一种制造轴承环构件的方法，通过设置原料（13a）的金属材料，具有优异的金属特性的金属材料（例如，金属材料），可以降低加工成本并获得高设计自由度 疲劳强度和耐磨性以及优良的加工特性如淬透性，在流动到在使用或锻造轴承环构件期间需要金属材料的特征的部分（滚道表面等）的部分中。 本发明由原料（13a）形成为圆筒状的第一金属部（23）和金属特性优异的金属材料形成为柱状的第二金属部（24）构成， 或加工特性比第一金属部件（23）。 例如，第二金属部件（24）设置在第一金属部件（23）的内径侧的部分，该第一金属部件（23）是流到外部滚道（5a，5b）的原料（13a）的一部分 ）锻造期间的外圈（2）。

公开(公告)号：US20150321245A1

公开(公告)日：2015-11-12

申请号：US14647472

申请日：2013-12-09

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Hiroaki TAHIRA ,  Kisung KIM ,  Junichi OKUBO

IPC分类号： B21K1/08 ,  B21J5/12 ,  F16C3/08 ,  B21J5/02

CPC分类号： B21K1/08 ,  B21J5/025 ,  B21J5/12 ,  F16C3/08 ,  F16C2204/64 ,  F16C2220/46 ,  Y10T74/2173

摘要： A forged crankshaft (1) includes a carbon steel containing S, wherein in a portion corresponding to a machined outer circumferential surface of a shaft part such as journals (J), crank pins (P), a front part (Fr), and a flange (Fl), a ratio x/y of an area rate x of sulfide in a position (X) corresponding to a parting surface of a die for finish forging to an area rate y of sulfide in a position (Y) corresponding to a bottom of a die impression of the die for finish forging is equal to or lower than 1.5. The forged crankshaft (1) can avoid an occurrence of machined surface cracks on the journals (J) and the crank pins (P) after the outer circumferential surface is machined.

摘要翻译： 锻造曲轴（1）包括含有S的碳素钢，其中在对应于诸如轴颈（J），曲柄销（P），前部（Fr）和轴的部分的加工的外圆周表面的部分中 法兰（F1），在对应于用于精锻的模具的分型面的位置（X）中硫化物的面积率x的比率x / y与对应于（a）的位置（Y）的硫化物的面积率y 用于精锻的模具的模具底部等于或低于1.5。 锻造的曲轴（1）可以避免在外周表面被加工之后在轴颈（J）和曲柄销（P）上发生加工表面裂纹。

公开(公告)号：US20150246393A1

公开(公告)日：2015-09-03

申请号：US14556105

申请日：2014-11-29

申请人： Hyundai Motor Company

发明人： Hak-Soo Kim ,  Boo-Yong Jung

IPC分类号： B22F5/00 ,  F02F3/00 ,  B22F3/24 ,  B22F3/12 ,  B22F3/17

CPC分类号： B22F5/00 ,  B22F3/1007 ,  B22F3/12 ,  B22F3/17 ,  B22F3/24 ,  B22F2003/033 ,  B22F2003/247 ,  B22F2003/248 ,  B22F2998/10 ,  B22F2999/00 ,  F02F3/0015 ,  F16C7/023 ,  F16C2220/20 ,  F16C2220/46 ,  F16C2223/08 ,  B22F3/02 ,  B22F2203/11 ,  B22F2201/013 ,  B22F2201/02

摘要： Disclosed is a method of manufacturing a connecting rod by using semi-closed sinter forging. The method includes: a first step of positioning a metal powder of a sintering material in a closed mold and then forming a preliminary formed body by using a general forming press; a second step of heating the formed preliminary formed body to sinter the preliminary formed body; a third step of semi-closed forging the sintered preliminary formed body to manufacture a forged part; a fourth step of cooling the manufactured forged part to normal temperature; a fifth step of removing a flash from the cooled forged part through a punching process; and a sixth step of manufacturing the connecting rod through a shot blast treatment in order to remove a foreign substance existing on a surface of the forged part from which the flash is removed.

摘要翻译： 公开了通过使用半封闭烧结锻造制造连杆的方法。 该方法包括：第一步骤，将烧结材料的金属粉末定位在闭合的模具中，然后通过使用普通成形压机形成初步成形体; 第二步骤，加热形成的初步成形体以烧结初步成形体; 半封闭锻造烧结预成形体以制造锻造部件的第三步骤; 将制造的锻造部件冷却至常温的第四步骤; 通过冲压工艺从冷却的锻造部件去除闪光的第五步骤; 以及通过喷丸处理制造连杆的第六步骤，以去除存在于从其中去除闪光的锻造部件的表面上的异物。

公开(公告)号：US20150128416A1

公开(公告)日：2015-05-14

申请号：US14597307

申请日：2015-01-15

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Tomihiko FUKUYASU ,  Nobutaka TANIMOTO ,  Junichi OKUBO ,  Kunihiro YOSHIDA

IPC分类号： B21K1/08 ,  B21J5/08 ,  B21J5/02

CPC分类号： B21K1/08 ,  B21J5/025 ,  B21J5/027 ,  B21J5/08 ,  F16C3/08 ,  F16C2220/46 ,  Y10T29/49286

摘要： A method of manufacturing a die forged crankshaft to be mounted in a two or more cylinder reciprocating apparatus includes: an upsetting step that includes upsetting a billet having a constant cross-sectional area along an entire length thereof to form a blank having an enlarged cross-sectional area at a region between a portion to be formed into a leading crank arm of the crankshaft and a portion to be formed into a trailing crank arm thereof; a die forging step that includes die forging the blank formed in the upsetting step to form a forged blank having a shape of the crankshaft with a flash; and a trimming step that includes trimming the flash from the forged blank formed in the die forging step. This makes it possible to improve the material utilization and to use a billet having a cross-sectional size as small as possible.

摘要翻译： 一种制造要安装在两个或更多个气缸往复运动装置中的模锻曲轴的方法包括：镦锻步骤，包括镦锻沿其整个长度具有恒定横截面积的钢坯，以形成具有扩大横截面的坯料， 要形成曲轴的前置曲柄臂的部分与要形成其后曲柄臂的部分之间的区域的截面积; 模锻步骤，其包括在镦锻步骤中形成的坯件的锻造，以形成具有闪光的曲轴形状的锻造坯料; 以及修整步骤，其包括从在锻模步骤中形成的锻造坯件修整闪光。 这使得可以提高材料利用率，并且可以使用横截面尺寸尽可能小的坯料。

公开(公告)号：US08915651B2

公开(公告)日：2014-12-23

申请号：US13740885

申请日：2013-01-14

申请人： Jtekt Corporation

发明人： Yoshinori Masuda ,  Tatsuya Yokota

IPC分类号： F16C13/00 ,  B60B27/00 ,  F16C19/18 ,  F16C33/64 ,  F16C33/58 ,  B21K1/40 ,  F16C33/78

CPC分类号： B60B27/0005 ,  B21K1/40 ,  B60B27/00 ,  B60B27/0073 ,  F16C19/186 ,  F16C33/586 ,  F16C33/64 ,  F16C33/7826 ,  F16C33/7886 ,  F16C2220/46 ,  F16C2240/60 ,  F16C2326/02

摘要： An inner ring member having multiple flange portions is formed by cold forging. A tapered surface is formed in a state of a forged surface on the inner ring member so as to gradually increase in diameter from an inner side toward an outer side in a vehicle lateral direction over a region from a position near root portions of inner side faces of the flange portions in the vehicle lateral direction to a position radially outward of an outer periphery of an outer end portion of an outer ring member in the vehicle lateral direction. A seal member is attached to the outer periphery of the outer end portion of the outer ring member. A seal lip that is in sliding contact with the tapered surface in the state of a forged surface is formed at a distal end portion of the seal member.

摘要翻译： 具有多个凸缘部的内圈构件通过冷锻形成。 锥形表面形成在内环件上的锻造表面的状态，从而在从内侧面的根部附近的位置的区域内沿车辆横向方向从内侧向外侧逐渐增大 在车辆横向方向上的凸缘部分沿车辆横向方向的外圈构件的外端部的外周径向外侧的位置。 密封构件附接到外圈构件的外端部的外周。 在密封构件的远端部形成有在锻造状态下与锥面滑动接触的密封唇。

公开(公告)号：US08826773B2

公开(公告)日：2014-09-09

申请号：US13482081

申请日：2012-05-29

申请人： Steven K. Walters

发明人： Steven K. Walters

IPC分类号： F16C3/04

CPC分类号： F16C3/08 ,  F16C2220/46 ,  F16C2240/30 ,  F16C2240/40 ,  Y10T29/49286 ,  Y10T74/2174 ,  Y10T74/2183

摘要： A forged crankshaft includes a plurality of main journals, a plurality of crank pin journals rotatable in a circular path about axes defined by the main journals, and a plurality of crank webs. At least one crank web of the plurality of crank webs defines a middle crank web which is located between and connects two neighboring crank pin journals of the plurality of crank pin journals. The middle crank web has a stress relief forged therein, which is defined by first and second spaced sidewalls, an inner wall and a base wall. The forged-in stress relief has a predetermined depth, wrap angle, radius, and undercut which together define a shape of the forged-in stress relief. The shape of the forged-in stress relief is controlled to reduce stress in the crankshaft.

摘要翻译： 锻造曲轴包括多个主轴颈，多个曲柄销轴颈围绕由主轴颈限定的轴线以圆形路径旋转，以及多个曲柄腹板。 多个曲柄腹板中的至少一个曲柄腹板限定了位于多个曲柄销轴颈之间并连接两个曲柄销轴颈的两个曲柄销轴颈之间的中间曲柄腹板。 中间曲柄腹板在其中锻造有应力消除，其由第一和第二隔开的侧壁，内壁和底壁限定。 锻造的应力消除具有预定的深度，包角，半径和底切，其一起限定了锻造应力释放的形状。 控制锻造应力消除的形状以减少曲轴中的应力。

公开(公告)号：US20130192559A1

公开(公告)日：2013-08-01

申请号：US13754248

申请日：2013-01-30

申请人： Russell A. Chernenkoff

发明人： Russell A. Chernenkoff

IPC分类号： F16C7/02

CPC分类号： F16C7/023 ,  B21K1/766 ,  B22F3/17 ,  B22F3/24 ,  B22F5/10 ,  B22F2003/248 ,  B22F2999/00 ,  C21D9/40 ,  C22C1/02 ,  C22C33/0264 ,  F16C9/04 ,  F16C33/14 ,  F16C2202/04 ,  F16C2204/64 ,  F16C2220/20 ,  F16C2220/46 ,  F16C2223/18 ,  F16C2240/06 ,  F16C2240/60 ,  F16C2360/22 ,  F16C2360/42 ,  F16J7/00 ,  B22F2202/07

摘要： A method of forming a connecting rod, the method including the steps of: forming the connecting rod via a powder forging process; forming an integral wear resistant surface inside a bore of the connecting rod via an inductive heating process after completion of the powder forging process.

摘要翻译： 一种形成连杆的方法，所述方法包括以下步骤：通过粉末锻造工艺形成所述连杆; 在完成粉末锻造工艺之后通过感应加热工艺在连杆的孔内形成整体耐磨表面。