公开(公告)号：US5879480A

公开(公告)日：1999-03-09

申请号：US900673

申请日：1997-07-25

Applicant: Dennis W. Hetzner

Inventor： Dennis W. Hetzner

IPC: B23K26/34 ,  C21D1/09 ,  C21D9/40

CPC classification number: F16C33/64 ,  B23K26/0081 ,  B23K35/004 ,  B23K35/0244 ,  B23K35/0255 ,  C21D1/09 ,  B23K2201/00 ,  B23K2203/04 ,  C21D2211/008 ,  C21D2251/02 ,  C21D2251/04 ,  C21D9/40

Abstract: A steel machine component, such as a bearing race, has a critical surface of generally circular configuration. Here the steel of the machine component exists in a state of compression to improve the physical characteristics of the surface. To this end, high speed steel is melted along the full circumference of the surface. Upon cooling to room temperature some of the austenite in the steel transforms into martensite. Tempering converts much of the remaining austenite into martensite, so that the machine component at the surface is almost entirely martensite. Martensite normally occupies a greater volume than austenite, but since the layer of martensite so formed is confined by the underlying core of the machine component, the layer exists in a state of compression. The high speed steel is melted with a laser beam that makes a trace over the full surface of the machine component. Where the underlying core is formed from high speed steel, the steel that is melted derives from the core itself, thus producing a glaze over the core. Where the underlying core is another type of steel, the high speed steel which is melted is supplied from an external source as a filler metal and becomes a cladding that lies over, yet is bonded to, the core.

Abstract translation: 诸如轴承座的钢机器部件具有大致圆形构造的临界表面。 这里，机械部件的钢存在于压缩状态，以改善表面的物理特性。 为此，高速钢沿表面的整个周边熔化。 冷却至室温后，钢中的一些奥氏体转变成马氏体。 回火将大部分剩余奥氏体转化成马氏体，使得表面的机械部件几乎完全是马氏体。 马氏体通常占据比奥氏体更大的体积，但是由于如此形成的马氏体层被机器部件的下面的核心限制，所以该层以压缩状态存在。 高速钢用激光束熔化，激光束在机器部件的整个表面上形成痕迹。 在下面的芯由高速钢形成时，熔化的钢源自芯本身，从而在芯上产生釉。 在下面的芯是另一种类型的钢的情况下，熔化的高速钢作为填充金属从外部源供给，并且成为位于芯上并与芯结合的包层。

公开(公告)号：US4719680A

公开(公告)日：1988-01-19

申请号：US891116

申请日：1986-07-28

Applicant: Theodor Cyron

Inventor： Theodor Cyron

IPC: B21C37/06 ,  B01D53/86 ,  B01J35/04 ,  B23K11/11 ,  F01N3/28 ,  B21D53/00

CPC classification number: F01N3/281 ,  B01J35/04 ,  B23K11/11 ,  B23K2201/00 ,  F01N2330/04 ,  F01N2470/10 ,  Y10T29/49345 ,  Y10T29/49826 ,  Y10T428/1234 ,  Y10T428/24149

Abstract: A method of producing a metallic exhaust gas catalyst carrier body includes winding alternating layers of smooth and corrugated sheetmetal strips to form a blank and inserting the blank into a jacket tube, each winding of the blank being formed of a respective smooth and corrugated sheetmetal strip each having an individually predeterminable length; determining the length of each winding in accordance with the length necessary for filling a predetermined jacket tube cross section, fixing each winding beforehand to at least one side of the blank, so as to produce an approximately egg-shaped blank which is tightly wound on the one side and wound with varying looseness in the remaining region thereof; inserting the blank into the jacket tube in such a manner that the tightly wound side is located in a region of the jacket tube cross section in which a largest possible inscribed circle of the jacket tube cross section engages the jacket tube, and a device for carrying out the method, a carrier body formed by the method and device, and a blank forming part of the carrier body.

Abstract translation: 一种制造金属废气催化剂载体的方法，包括：交替的平滑和波纹的金属板条形成层，以形成坯料并将坯料插入套管中，每个卷绕的坯料由相应的光滑和波纹状的金属片形成 具有单独可预定的长度; 根据填充预定的套管横截面所需的长度来确定每个绕组的长度，将每个绕组预先固定到坯件的至少一侧，以便产生紧紧地卷绕在坯料上的大致蛋形坯料 一侧在其剩余区域中变得松动; 将坯料插入护套管中，使得紧密缠绕的侧面位于护套管横截面中最大可能的内接圆与护套管接合的护套管横截面的区域中，以及用于承载的装置 通过该方法和装置形成的载体，以及形成载体主体的一部分的坯料。

公开(公告)号：US6085122A

公开(公告)日：2000-07-04

申请号：US866600

申请日：1997-05-30

Applicant: Gerald L. Manning

Inventor： Gerald L. Manning

IPC: G06F19/00

CPC classification number: B29C67/0077 ,  B23K26/06 ,  B23K26/082 ,  B23K26/32 ,  B23K26/322 ,  B23K26/324 ,  B23K26/34 ,  B23K35/0244 ,  B23K35/0255 ,  C23C24/10 ,  B22F2003/1057 ,  B23K2201/00 ,  B23K2201/34 ,  B23K2203/16 ,  B23K2203/30 ,  B23K2203/52 ,  Y02P10/295

Abstract: A selective laser sintering apparatus and method is disclosed, in which the laser power is controlled according to the scan velocity. The scanning system, which includes a pair of galvanometer-controlled mirrors for directing the aim of the laser beam, generates signals indicative of either the position or scan velocity of the aim of the beam, in either one or two directions. The signals are gated in the laser power control system so as to pass the signals only during those times at which the laser is to be turned on. A laser power control system receives the signals and, in the case of position signals, differentiates the signals to generate velocity signals. The velocity signals are used to derive a scan velocity, and the scan velocity is multiplied by the desired laser power at full scan velocity to produce a laser power control signal. By making the laser power dependent upon the scan velocity, a constant laser energy flux density is applied to powder at the target surface, even during acceleration and deceleration intervals at the beginning and end of a scan, respectively.

Abstract translation: 公开了一种根据扫描速度控制激光功率的选择性激光烧结装置和方法。 包括一对用于引导激光束目标的电流计控制反射镜的扫描系统产生指示光束的目标的位置或扫描速度的信号，在一个或两个方向上。 这些信号在激光功率控制系统中选通，以便仅在激光器被打开的时间内传递信号。 激光功率控制系统接收信号，并且在位置信号的情况下，区分信号以产生速度信号。 速度信号用于导出扫描速度，扫描速度以全扫描速度乘以期望的激光功率，以产生激光功率控制信号。 通过使激光功率取决于扫描速度，即使在扫描开始和结束时的加速和减速间隔期间，激光能量通量密度均匀地施加到目标表面上的粉末。

公开(公告)号：US4847230A

公开(公告)日：1989-07-11

申请号：US116071

申请日：1987-10-30

Applicant: Theodor Cyron

Inventor： Theodor Cyron

IPC: B21C37/06 ,  B01D53/86 ,  B01J35/04 ,  B23K11/11 ,  F01N3/28

CPC classification number: F01N3/281 ,  B01J35/04 ,  B23K11/11 ,  B23K2201/00 ,  F01N2330/04 ,  F01N2470/10 ,  Y10T29/49345 ,  Y10T29/49826 ,  Y10T428/1234 ,  Y10T428/24149

Abstract: A method of producing a metallic exhaust gas catalyst carrier body includes winding alternating layer of smooth and corrugated sheetmetal strips to form a blank and inserting the blank into a jacket tube, each winding of the blank being formed of a respective smooth and corrugated sheetmetal strip each having an individually predeterminable length; determining the length of each winding in accordance with the length necessary for filling a predetermined jacket tube cross section, fixing each winding beforehand to at least one side of the blank, so as to produce an approximately egg-shaped blank which is tightly wound on the one side and wound with varying looseness in the remaining region thereof; inserting the blank into the jacket tube in such a manner that the tightly wound side is located in a region of the jacket tube cross section in which a largest possible inscribed circle of the jacket tube cross section engages the jacket tube, and a device for carrying out the method, a carrier body formed by the method and device, and a blank forming part of the carrier body.

Abstract translation: 一种制造金属废气催化剂载体的方法，包括使交替的平滑和波纹的金属板条形成一层，以形成坯料并将坯料插入套管中，每个卷绕的坯料由相应的光滑和波纹的钣金条形成 具有单独可预定的长度; 根据填充预定的套管横截面所需的长度来确定每个绕组的长度，将每个绕组预先固定到坯件的至少一侧，以便产生紧紧地卷绕在坯料上的大致蛋形坯料 一侧在其剩余区域中变得松动; 将坯料插入护套管中，使得紧密缠绕的侧面位于护套管横截面中最大可能的内接圆与护套管接合的护套管横截面的区域中，以及用于承载的装置 通过该方法和装置形成的载体，以及形成载体主体的一部分的坯料。