公开(公告)号：US09383276B2

公开(公告)日：2016-07-05

申请号：US13813960

申请日：2011-10-07

申请人： Manabu Enoki ,  Akinori Matsui ,  Yuji Kobayashi

发明人： Manabu Enoki ,  Akinori Matsui ,  Yuji Kobayashi

IPC分类号： G01L5/00 ,  B23K26/00 ,  B23K26/03 ,  C21D10/00 ,  C21D11/00 ,  G01N29/04 ,  G01N29/14 ,  G01N29/24 ,  G01N29/44 ,  G06F17/00 ,  C21D7/06 ,  C21D9/32

CPC分类号： G01L5/0052 ,  B23K26/03 ,  B23K26/356 ,  C21D7/06 ,  C21D9/32 ,  C21D10/00 ,  C21D10/005 ,  C21D11/00 ,  G01N29/045 ,  G01N29/14 ,  G01N29/2418 ,  G01N29/4472 ,  G06F17/00

摘要： A method of evaluating impact force input to a workpiece member with a laser irradiated in laser peening processing is provided. This evaluation method includes a signal acquiring step, an input function calculating step, and an evaluating step. In the signal acquiring step, a detected waveform is acquired. The detected waveform is output during the laser peening processing by an AE sensor that detects an elastic wave generated in the workpiece member. In the input function calculating step, an input function I(t) by laser irradiation is calculated. In the evaluating step, impact force is evaluated using the input function I(t) by the laser irradiation.

摘要翻译： 提供了一种利用在激光喷丸处理中照射的激光来评价输入到工件的冲击力的方法。 该评估方法包括信号获取步骤，输入函数计算步骤和评估步骤。 在信号获取步骤中，获取检测到的波形。 检测到的波形在激光喷丸处理期间由检测在工件中产生的弹性波的AE传感器输出。 在输入函数计算步骤中，计算通过激光照射的输入函数I（t）。 在评价步骤中，使用激光照射的输入函数I（t）评价冲击力。

公开(公告)号：US20150361516A1

公开(公告)日：2015-12-17

申请号：US14763365

申请日：2013-01-25

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Koji INAGAKI ,  Takaaki KANAZAWA

IPC分类号： C21D1/18 ,  C21D7/08 ,  F16H55/36 ,  C22C38/00 ,  C21D9/32 ,  C21D6/00 ,  C21D7/06 ,  B24C1/08

CPC分类号： C21D1/18 ,  B24C1/08 ,  C21D1/667 ,  C21D6/00 ,  C21D7/06 ,  C21D7/08 ,  C21D9/0068 ,  C21D9/32 ,  C21D11/00 ,  C21D2261/00 ,  C22C38/00 ,  F16H55/36 ,  F16H55/56 ,  F16H2055/325

摘要： A method of heat treating metal articles includes a heating process of heating a metal workpiece under a predetermined heating condition, a cooling process of cooling the workpiece by spraying mist of cooling water to the workpiece under a predetermined cooling condition after heating the workpiece, and a surface treatment process of adjusting a surface roughness of the workpiece prior to the heating process in line with a thermal distribution in the workpiece heated during the heating process.

摘要翻译： 一种热处理金属制品的方法包括在预定加热条件下加热金属工件的加热过程，在加热工件之后，在预定的冷却条件下将冷却水喷雾到工件上来冷却工件的冷却过程，以及 在加热过程之前根据在加热过程中加热的工件中的热分布来调节工件的表面粗糙度的表面处理过程。

公开(公告)号：US09156113B2

公开(公告)日：2015-10-13

申请号：US13152898

申请日：2011-06-03

申请人： Andrew Ezekiel Wessman ,  David Paul Mourer ,  Daniel Yeuching Wei

发明人： Andrew Ezekiel Wessman ,  David Paul Mourer ,  Daniel Yeuching Wei

IPC分类号： C22F1/10 ,  B23P15/00 ,  C21D7/13 ,  C21D9/32 ,  C21D1/26 ,  F01D5/02 ,  B21K1/32 ,  C22C19/03 ,  C21D9/00 ,  B32B15/01

CPC分类号： B23P15/006 ,  B21K1/32 ,  C21D1/26 ,  C21D7/13 ,  C21D9/32 ,  C21D2201/00 ,  C22C19/03 ,  F01D5/02 ,  F05D2230/25

摘要： Processes for fabricating components to have two or more regions with different grain structures, and components produced by such processes. The processes entail performing at least one forging step on a preform to produce a profile having at least a first portion corresponding to the first region of the component. The preform is formed of a precipitation-strengthened alloy having a solvus temperature, and the at least one forging step comprises a nonfinal forging step performed at a first strain rate and at a first subsolvus temperature that is below the solvus temperature of the alloy. A subsequent forging step is performed on the profile to produce a final profile comprising the first portion and a second portion corresponding to the second region of the component. The subsequent forging step is performed at a strain rate and at a subsequent subsolvus temperature, wherein at least one of the subsequent strain rate and subsequent subsolvus temperature is either higher or lower than the first strain rate or first subsolvus temperature. A heat treatment is then performed on the final profile to cause grain growth, wherein the first portion of the final profile has a different grain size than the second portion.

摘要翻译： 用于制造具有两个或更多个具有不同晶粒结构的区域的部件的工艺以及由这些工艺生产的部件。 该过程需要在预制件上执行至少一个锻造步骤以产生至少具有对应于部件的第一区域的第一部分的轮廓。 预成型体由具有固溶温度的沉淀强化合金形成，并且所述至少一个锻造步骤包括以低于合金的固溶温度的第一应变速率和第一副溶液温度下进行的非正式锻造步骤。 在轮廓上执行随后的锻造步骤以产生包括第一部分和对应于部件的第二区域的第二部分的最终轮廓。 随后的锻造步骤以应变速率和随后的子体温度进行，其中随后的应变速率和随后的子体温度中的至少一个要么高于或低于第一应变速率或者第一子体温度。 然后对最终轮廓进行热处理以引起晶粒生长，其中最终轮廓的第一部分具有与第二部分不同的晶粒尺寸。

公开(公告)号：US20150240930A1

公开(公告)日：2015-08-27

申请号：US14611304

申请日：2015-02-02

申请人： Harmonic Drive Systems Inc.

发明人： Masaru KOBAYASHI ,  Daisuke ORII

IPC分类号： F16H55/08 ,  C21D9/32 ,  C21D8/00 ,  C21D6/00 ,  C22C38/04 ,  C22C38/38 ,  C22C38/34 ,  C22C38/22 ,  F16H55/06 ,  C22C38/02

CPC分类号： F16H55/0833 ,  C21D1/22 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D7/06 ,  C21D8/005 ,  C21D9/32 ,  C21D2211/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/34 ,  C22C38/38 ,  F16H55/06 ,  F16H2049/003

摘要： A method for manufacturing a flexible externally toothed gear includes: a first step (ST1) for producing a primary molded article by performing near-net-shape plastic working on a material comprising a nickel-free low-alloy steel having a silicon content of 1.45-1.5 wt %; a second step (ST2) for martempering the primary molded article; a third step (ST3) for producing a secondary molded article from the primary molded article; and a fourth step (ST4) for shot-peening the secondary molded article to change the surface portions of the tooth part and other parts to martensite. A flexible externally toothed gear can be obtained in which the surface hardness is kept within a prescribed range and the fatigue strength and abrasion resistance are high.

摘要翻译： 制造柔性外齿轮的方法包括：第一步骤（ST1），用于通过对包含硅含量为1.45的无镍低合金钢的材料进行近净形塑性加工来制造一次成型制品 -1.5重量％ 用于对一次成型品进行捣碎的第二工序（ST2） 用于从一次成型品制造二次成型品的第三工序（ST3） 和第二工序（ST4），其用于对二次成型体进行喷丸处理，将齿部等部分的表面部分变为马氏体。 可以获得其中表面硬度保持在规定范围内并且疲劳强度和耐磨性高的柔性外齿齿轮。

公开(公告)号：US08961710B2

公开(公告)日：2015-02-24

申请号：US13304733

申请日：2011-11-28

申请人： Yutaka Neishi ,  Takanari Hamada ,  Hidekazu Sueno ,  Yuji Kobayashi ,  Hideaki Sugiura

发明人： Yutaka Neishi ,  Takanari Hamada ,  Hidekazu Sueno ,  Yuji Kobayashi ,  Hideaki Sugiura

IPC分类号： C23C8/22 ,  C23C8/20 ,  C21D1/06 ,  C21D7/06 ,  C21D9/28 ,  C21D9/32 ,  C21D9/40 ,  C23C8/44 ,  C23C8/64 ,  C22C38/32

CPC分类号： C23C8/20 ,  C21D1/06 ,  C21D7/06 ,  C21D9/28 ,  C21D9/32 ,  C21D9/40 ,  C23C8/44 ,  C23C8/64

摘要： A carburized component with improved fatigue strength has a base steel containing, by mass %, C: 0.15-0.25%, Si: 0.03-0.50%, Mn: more than 0.60% and not more than 1.5%, P≦0.015%, S: 0.006-0.030%, Cr: 0.05-2.0%, Al≦0.10%, N≦0.03%, and O≦0.0020%, and optionally at least one element selected from Mo, Cu, Ni, B, Ti, Nb and V, the balance being Fe and impurities. A surface hardened layer portion satisfies: (a) average carbon concentration in the region from the outermost surface to a point of 0.2 mm depth of 0.35-0.60 mass %, (b) surface roughness Rz≦15 μm, and (c) σr(0)≦−800 MPa, σr(100)≦−800 MPa, and residual stress intensity index Ir≦80000, wherein Ir is calculated by [Ir=∫|σr(y)|dy], where y μm is the depth from the outermost surface and σr(y) is the residual stress for the points from the outermost surface to a depth of 100 μm with the range of y from 0 to 100 (μm).

摘要翻译： 具有改善的疲劳强度的渗碳部件具有以质量％计含有C：0.15-0.25％，Si：0.03-0.50％，Mn：大于0.60％且不大于1.5％的基础钢，P＆lt; L; 0.015％，S ：0.006-0.030％，Cr：0.05-2.0％，Al＆lt; N1; 0.10％，N＆lt; NlE; 0.03％，O＆lt; E; 0.0020％，以及任选的至少一种选自Mo，Cu，Ni，B，Ti，Nb和V ，余量为Fe和杂质。 表面硬化层部分满足：（a）从最外表面到0.2mm深度的区域的平均碳浓度为0.35-0.60质量％，（b）表面粗糙度Rz＆lt; ll;15μm，（c）＆sgr; r（0）＆nlE; -800MPa，＆sgr; r（100）＆nlE; -800MPa，残余应力强度指数Ir＆nlE; 80000，其中Ir由[Ir =∫|＆sgr; r（y）| dy] ，其中yμm是从最外表面的深度，并且r（y）是从最外表面到100μm深度的点的残余应力，y的范围为0至100（μm）。

公开(公告)号：US20130186522A1

公开(公告)日：2013-07-25

申请号：US13821763

申请日：2011-11-29

申请人： Katsuyuki Ichimiya ,  Shinji Mitao

发明人： Katsuyuki Ichimiya ,  Shinji Mitao

IPC分类号： C21D1/06 ,  C21D9/32

CPC分类号： C21D1/06 ,  C21D1/32 ,  C21D9/32 ,  C21D2211/005 ,  C21D2211/009 ,  C22C1/02 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/18 ,  C22C38/20 ,  C22C38/24 ,  C22C38/40 ,  C23C8/02 ,  C23C8/22 ,  C23C8/80

摘要： A carburizing steel has a composition containing, in mass %, C: 0.1-0.35%; Si: 0.01-0.22%; Mn: 0.3-1.5%; Cr: 1.35-3.0%; P: 0.018% or less; S: 0.02% or less; Al: 0.015-0.05%; N: 0.008-0.015%; and O: 0.0015% or less, each being contained in an amount within a range satisfying formulas (1), (2) and (3) below, and the balance of the composition being Fe and incidental impurities, and the carburizing steel having microstructures before spheroidizing annealing such that a total microstructure proportion of ferrite and pearlite is 85% or more and an average ferrite grain size is 25 μm or less. 3.1≧{([% Si]/2)+[% Mn]+[% Cr]}≧2.2   (1) [% C]−([% Si]/2)+([% Mn]/5)+2[% Cr]≧3.0   (2) 2.5≧[% Al]/[% N]≧1.7   (3) [% M] represents content (in mass %) of element M.

摘要翻译： 渗碳钢具有以质量％计含有C：0.1-0.35％的组成; Si：0.01-0.22％; Mn：0.3〜1.5％ Cr：1.35-3.0％; P：0.018％以下; S：0.02％以下; Al：0.015-0.05％; N：0.008-0.015％; 和O：0.0015％以下，各自含有满足式（1），（2）和（3）的范围内的量，其余组成为Fe和附带杂质，以及具有微结构的渗碳钢 在球化退火之前，铁素体和珠光体的总微结构比例为85％以上，铁素体平均粒径为25μm以下。 3.1％= {（[％Si] / 2）+ [％Mn] + [％Cr]}> = 2.2（1）[％C] - （[％Si] / 2）+（[％Mn] ）+2 [％Cr]> = 3.0（2）2.5> = [％Al] / [％N]> = 1.7（3）[％M]表示元素M的含量（质量％）

公开(公告)号：US20130000788A1

公开(公告)日：2013-01-03

申请号：US13634695

申请日：2011-03-14

申请人： Eiri Nagata ,  Nobuaki Kurita

发明人： Eiri Nagata ,  Nobuaki Kurita

IPC分类号： C21D9/32 ,  C23C8/22 ,  C23C8/32

CPC分类号： C21D1/32 ,  C21D1/20 ,  C21D1/22 ,  C21D9/32 ,  C21D2211/002 ,  C22C38/00 ,  C22C38/22 ,  C23C8/22 ,  F16H2049/003

摘要： A method for manufacturing a base material for a wave gear which enables the effective suppression of man-hours and manufacturing cost while providing the required strength and elastic deformation characteristics for an external gear of a wave gear. In this manufacturing method, steel having a carbon content of 0.48% or less is subjected to primary molding by being cold worked into the shape of an external gear for a wave gear. The resulting primary molded article is heated to a temperature range in which the main phase of the metallographic structure thereof forms an austenitic structure. The main phase of the metallographic structure is formed into bainite by carrying out quenching to a predetermined temperature higher than the martensitic transformation starting temperature and maintaining the temperature for a predetermined time. The product is then cooled to normal temperature.

摘要翻译： 一种制造用于波齿轮的基材的方法，其能够有效地抑制工时和制造成本，同时为波齿轮的外齿轮提供所需的强度和弹性变形特性。 在该制造方法中，通过冷加工为波齿轮的外齿轮的形状，将碳含量为0.48％以下的钢进行一次成型。 将得到的一次成型体加热到其金相组织的主相形成奥氏体组织的温度范围。 通过进行淬火至高于马氏体相变开始温度的预定温度并将温度保持预定时间，将金相组织的主相形成贝氏体。 然后将产物冷却至常温。

公开(公告)号：US20080145690A1

公开(公告)日：2008-06-19

申请号：US11611173

申请日：2006-12-15

申请人： Tapas K. Mukherji ,  Michael E. Dandorph ,  Bruce D. Hansen ,  Edward J. Karedes

发明人： Tapas K. Mukherji ,  Michael E. Dandorph ,  Bruce D. Hansen ,  Edward J. Karedes

IPC分类号： B32B5/14 ,  C21D9/32 ,  C23C8/00

CPC分类号： C23C8/22 ,  C21D9/32 ,  C23C8/26 ,  C23C8/34

摘要： A surface processing method includes the step of increasing a surface hardness of a metal having a nominal composition that includes about 0.21-0.25 wt % carbon, about 2.9-3.3 wt % chromium, about 11-12 wt % nickel, about 13-14 wt % cobalt, about 1.1-1.3 wt % molybdenum, and a balance of iron from a first hardness to a second hardness. For example, the method is used to produce a surface-hardened component that includes a core section having a first hardness between about 51 HRC and 55 HRC and a case section having a second hardness that is greater than the first hardness.

摘要翻译： 表面处理方法包括提高具有标称组成的金属的表面硬度的步骤，其包括约0.21-0.25重量％的碳，约2.9-3.3重量％的铬，约11-12重量％的镍，约13-14重量％ 约钴，约1.1-1.3重量％的钼，余量的铁由第一硬度至第二硬度。 例如，该方法用于生产表面硬化部件，其包括具有在约51HRC和55HRC之间的第一硬度的芯部分和壳体部分 具有大于第一硬度的第二硬度。

公开(公告)号：US20070283778A1

公开(公告)日：2007-12-13

申请号：US11727330

申请日：2007-03-26

申请人： Junichi Ichikawa ,  Tomoyuki Kohida ,  Kensuke Nakata ,  Tomoaki Arakawa

发明人： Junichi Ichikawa ,  Tomoyuki Kohida ,  Kensuke Nakata ,  Tomoaki Arakawa

IPC分类号： B22F7/00 ,  B22F5/08 ,  C21D9/32

CPC分类号： F16H55/06 ,  B22F3/16 ,  B22F3/24 ,  B22F5/08 ,  B22F2003/248 ,  Y10T29/49467 ,  Y10T29/49474 ,  Y10T29/49478 ,  Y10T74/19949

摘要： A sintered gear comprises: plural tooth portion having a tooth flank and a tooth bottom land; a high density area formed over entire surface of the tooth portion, the high density area having a density of 7.6 Mg/m3 or more and formed with a depth of 1 mm or more from the surface; a low density area formed in deeper area than the high density area, the low density area having a density of 7.3 Mg/m3 or less; and an intermediate area formed between the high density area and the low density area, the intermediate area having a density gradient in which the density is gradually decreased from the high density area to the low density area.

摘要翻译： 烧结齿轮包括：多个齿部，其具有齿面和齿底面; 形成在所述齿部的整个表面上的高密度区域，所述高密度区域的密度为7.6Mg / m 3以上，并且形成有距离所述表面1mm以上的深度; 在比较高密度区域更深的区域形成的低密度区域，密度为7.3Mg / m 3以下的低密度区域; 以及形成在高密度区域和低密度区域之间的中间区域，中间区域具有其密度从高密度区域逐渐降低到低密度区域的密度梯度。

公开(公告)号：US20050241734A1

公开(公告)日：2005-11-03

申请号：US11154918

申请日：2005-06-16

申请人： Takemori Takayama ,  Naoji Hamasaka ,  Noriko Morioka

发明人： Takemori Takayama ,  Naoji Hamasaka ,  Noriko Morioka

IPC分类号： C21D6/00 ,  C21D9/32 ,  C22C38/00 ,  C22C38/54 ,  C22C38/58 ,  C23C8/22 ,  C23C8/80 ,  C22C38/02 ,  C22C38/06

CPC分类号： C23C8/80 ,  C23C8/22

摘要： The pitting resistance of a gear is increased by hardening its tooth flanks through application of carburizing/quenching, bright hardening and induction hardening to a steel material capable of providing significantly improved softening resistance in tempering at a low temperature of 300 to 350° C. To this end, the steel material prepared so as to satisfy the relationship described by: 5≦4.3×Si(wt %)+7.3×Al(wt %)+3.1×V(wt %)+1.5×Mo(wt %)+1.2×Cr(wt %)×(0.45÷C(wt %)) is carburized such that the carbon concentration of its carburized surface layer is adjusted to 0.6 to 0.9 wt %; and the steel material is subjected to quenching and tempering at 300° C. or less subsequently to the carburization process, or alternatively the steel material is once cooled after the carburization process and then subjected to treatments of re-heating hardening and tempering at 300° C. or less so that a hardness of HRC 58 or more is ensured by the tempering process at 300° C.

摘要翻译： 通过在300〜350℃的低温下能够提供显着提高的回火的耐软化性的钢材，通过对渗碳/淬火，光亮硬化和感应淬火进行渗碳淬火来淬火其齿面来增加齿轮的耐点蚀性。 为了满足以下关系而制备的钢材：5 <= 4.3×Si（wt％）+ 7.3×Al（wt％）+ 3.1×V（wt％）+ 1.5×Mo（wt％）+ 1.2×Cr wt％）×（0.45 / C（重量％））渗碳，使其渗碳表面层的碳浓度调整为0.6〜0.9重量％ 钢材在渗碳处理后在300℃以下进行淬火回火，或者在渗碳处理后钢材一次冷却后，在300℃下进行再加热硬化回火处理 C以下，通过300℃的回火处理确保HRC58以上的硬度。