141 |
Surface Contouring of a Weld Cap and Adjacent Base Metal Using Ultrasonic Impact Treatment |
US14235530 |
2012-07-30 |
US20140169863A1 |
2014-06-19 |
David John Sharman; Samuel B. Abston, II; Taylor Hanes |
A method for forming a smooth interface between a weld cap and an adjacent base metal utilizing ultrasonic impact treatment. The method improves the geometric profile of a weld while imparting a compressive residual stress layer on the weld metal and base metal thereby alleviating the tensile residual stresses imparted to the metals during welding. The contouring process does not remove material, as in grinding, but plastically deforms the surface being treated producing a densified surface, in turn providing a smooth weld cap and base metal surface finish without the loss of base or weld metal thickness. |
142 |
METHOD OF SCALE SUBSTRATE MANUFACTURE |
US14002231 |
2012-03-05 |
US20130335071A1 |
2013-12-19 |
Peter Kogej; Vojteh Leskovsek |
The present invention relates to a method for producing a magnetic substrate for an encoder scale. The method comprising the step of mechanically working the substrate, wherein the substrate is cooled prior to the mechanical working step. In one embodiment, a stainless steel substrate is used. The stainless steel may comprise an austenite (non-magnetic) phase and a martensite (magnetic) phase. Mechanically working and cooling in this manner increases the amount of magnetic (martensite) phase material that is formed, thereby improving the magnetic contrast when non-magnetic (austenite) marking are subsequently formed on the substrate by laser marking. |
143 |
LIGHTWEIGHT CAST-IRON PRODUCT |
US13976239 |
2011-12-19 |
US20130284320A1 |
2013-10-31 |
Yasushi Asada |
Provided is a cast-iron product that satisfies demands for both weight reduction and strength enhancement with good balance. A cast-ion product having an inner honeycomb structure is produced by a process including: a decarburization step, in which a cast-iron product made of a hypoeutectic cast iron is heated to form a decarburized layer on the surface of the cast-iron product; an outflow-hole formation step, in which an outflow hole penetrating through the decarburized layer into an inner region is formed; and a liquation step, in which the cast-iron product is heated to a temperature lower than the melting point of the decarburized layer and higher than the melting point of the hypoeutectic cast iron remaining inside, while being held in such a manner that the outflow hole is located in the lower portion thereof. |
144 |
Electromagnetic forming of metallic glasses using a capacitive discharge and magnetic field |
US13083307 |
2011-04-08 |
US08499598B2 |
2013-08-06 |
William L. Johnson; Georg Kaltenboeck; Marios D. Demetriou; Scott Roberts; Konrad Samwer |
An apparatus and method of uniformly heating, rheologically softening, and thermoplastically forming metallic glasses rapidly into a net shape using a rapid capacitor discharge forming (RCDF) tool in combination with an electromagnetic force generated by the interaction of the applied current with a transverse magnetic field. The RCDF method utilizes the discharge of electrical energy stored in a capacitor to uniformly and rapidly heat a sample or charge of metallic glass alloy to a predetermined “process temperature” between the glass transition temperature of the amorphous metal and the equilibrium melting point of the alloy in a time scale of several milliseconds or less, at which point the interaction between the electric field and the magnetic field generates a force capable of shaping the heated sample into a high quality amorphous bulk article via any number of techniques including, for example, injection molding, dynamic forging, stamp forging, and blow molding in a time scale of less than one second. |
145 |
MACHINE BLADE FOR FOOD PROCESSING |
US13700338 |
2011-05-26 |
US20130192441A1 |
2013-08-01 |
Egon Ehrle; Andreas Gebert |
The present invention relates to a blade for cutting machines and to a method for producing such a blade. The blade has a main body made of a first material and a cutting body made of a second material and having at least one cutting edge formed thereon. The second material has a higher hardness than the first material. The cutting body is joined along a joining line to the main body. According to the invention, the blade is produced by: a) providing a support made of a third material of high thermal conductivity; b) placing the main body on the support such that a base area of the main body and a surface of the support lie substantially parallel to each other and the joining line is adjacent the surface of the support; c) generating the cutting body by build-up welding of the second material onto the first material along the joining line, the support being arranged for mechanically supporting the second material used for build-up welding and d) sharpening the cutting body to form the at least one cutting edge |
146 |
GRAIN ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME |
US13814357 |
2011-08-03 |
US20130130043A1 |
2013-05-23 |
Takeshi Omura; Hiroi Yamaguchi; Seiji Okabe |
A grain oriented electrical steel sheet is subjected to magnetic domain refining treatment by electron beam irradiation and exhibits excellent low-noise properties when assembled as an actual transformer, in which a ratio (Wa/Wb) of a film thickness (Wa) of the forsierite film on a strain-introduced side of the steel sheet to a film thickness (Wb) of the forsierite film on a non-strain-introduced side of the steel sheet is 0.5 or higher, a magnetic domain discontinuous portion in a surface of the steel sheet on the strain-introduced side has an average width of 150 to 300 μm, and a magnetic domain discontinuous portion in a surface of the steel sheet on the non-strain-introduced side has an average width of 250 to 500 μm. |
147 |
METHOD AND AN APPARATUS FOR PRESTRESSING COMPONENTS BY ELECTRICAL DISCHARGE |
US13505626 |
2010-10-06 |
US20120216587A1 |
2012-08-30 |
John R. Webster |
An apparatus for pre-stressing a component, the apparatus includes means to direct a beam of radiation in a path through a medium adjacent to the component between a pair of electrodes to produce ionisation in the path through the medium and means to produce an electrical discharge between the pair of electrodes in the path through the medium to produce a pressure pulse in the medium adjacent to the component without the electrical discharge directly contacting the component, the pressure pulse impacting a surface of the component to produce a region of compressive residual stress within the component. |
148 |
ELECTROMAGNETIC FORMING OF METALLIC GLASSES USING A CAPACITIVE DISCHARGE AND MAGNETIC FIELD |
US13083307 |
2011-04-08 |
US20120006085A1 |
2012-01-12 |
William L. Johnson; Georg Kaltenboeck; Marios D. Demetriou; Scott Roberts; Konrad Samwer |
An apparatus and method of uniformly heating, rheologically softening, and thermoplastically forming metallic glasses rapidly into a net shape using a rapid capacitor discharge forming (RCDF) tool in combination with an electromagnetic force generated by the interaction of the applied current with a transverse magnetic field. The RCDF method utilizes the discharge of electrical energy stored in a capacitor to uniformly and rapidly heat a sample or charge of metallic glass alloy to a predetermined “process temperature” between the glass transition temperature of the amorphous metal and the equilibrium melting point of the alloy in a time scale of several milliseconds or less, at which point the interaction between the electric field and the magnetic field generates a force capable of shaping the heated sample into a high quality amorphous bulk article via any number of techniques including, for example, injection molding, dynamic forging, stamp forging, and blow molding in a time scale of less than one second. |
149 |
CONTINUOUS PRODUCTION SYSTEM FOR MAGNETIC PROCESSING OF METALS AND ALLOYS TO TAILOR NEXT GENERATION MATERIALS |
US13002121 |
2009-06-30 |
US20110220249A1 |
2011-09-15 |
Alexander Bogicevic; Aquil Ahmad; John Albert Kovacich; Bohdan Lisowsky; Michael Lee Killian; Alaa Abdel-Azim Elmoursi |
A system and method for producing material characteristics are described. A magnetic treatment chamber (14) with a high magnetic field treats workpieces; and a conveyor or transporter (26) continuously moves the workpieces (22) through the high magnetic field in the magnetic chamber. A frictional or mechanical engagement system (40a, 40b) extracts the workpieces through and out of the high magnetic field. |
150 |
PROCESS AND APPARATUS FOR PRODUCING SEMI-SOLIDIFIED SLURRY OF IRON ALLOY |
US13052141 |
2011-03-21 |
US20110193273A1 |
2011-08-11 |
Syuichi SHIKAI; Yasushi Fujinaga; Minoru Sasaki; Yoshihito Isshiki; Susumu Nishikawa |
A process for producing a semi-solidified slurry of an iron alloy including the steps of pouring a melt of an iron alloy into a semi-solidified slurry producing vessel 30 and cooling the melt therein to obtain a semi-solidified slurry having a crystallized solid phase and a residual liquid phase, wherein a hypoeutectic cast iron composition is used as a material, a melt of the composition is poured into the semi-solidified slurry producing vessel 30 in a predetermined amount at a time, a temperature of the melt when poured into the semi-solidified slurry producing vessel 30 is controlled to be not lower than a crystallization initiation temperature of the composition and not greater than a temperature that is 50° C. higher than the crystallization initiation temperature, and a cooling rate of the melt poured into the semi-solidified slurry producing vessel 30 is controlled not to exceed 20° C. per minute. |
151 |
Method and apparatus for improving turbocharger components |
US12456702 |
2009-06-19 |
US20100322778A1 |
2010-12-23 |
John T. Carroll, III; Uma Ramadorai; Yong-Ching Chen; Kevin W. Westerson |
In one form, a turbocharger component, such as a compressor wheel or an impeller, formed of a cast material or a material made using a powder metal process, includes a surface having at least a portion thereof treated by a thermo-mechanical treatment process, such as friction stir processing. At the treated portion, the material forming the component includes a microstructure that is different than the microstructure of the material throughout the rest of the component. For example, in one form the material at the treated portion includes a homogenous microstructure while the material throughout the rest of the component includes a cast microstructure. In one or more forms, the treated portion exhibits at least one of increased strength, ductility and fatigue-resistant properties. In another form, a method is directed to providing components for a turbocharger which exhibit enhanced structural properties. However, other embodiments, forms and applications are also envisioned. |
152 |
Method of improvement of toughness of heat affected zone at welded joint of steel plate |
US10533607 |
2003-10-29 |
US07754033B2 |
2010-07-13 |
Tadashi Ishikawa; Kiyotaka Nakashima; Tetsuro Nose |
A method of improvement of toughness of a heat affected zone in a multi-layer welded joint, a fillet welded joint, and a one-pass or several-pass large heat input welded joint of a steel plate is provided, that is, a method of improvement of toughness of a heat affected zone in a welded joint of a steel plate characterized subjecting a surface of a heat affected zone formed by a last pass of a multi-layer welded joint of a steel plate to impacts by an ultrasonic vibration tool or shot peening by ultrasonic vibration steel balls to thereby make an average of longitudinal axis of crystal grains up to a depth of 2 mm or more from the surface of the steel plate in the microstructure adjacent to a fusion line (FL) of a weld metal and a steel plate matrix in said heat affected zone formed by the last pass the equivalent of the crystal grain size of the steel plate matrix before the welding at a depth of ¼ of a thickness t from the surface of the steel plate. |
153 |
Manufacturing process for extending a length of service of component parts |
US11688091 |
2007-03-19 |
US07721577B2 |
2010-05-25 |
David B. Smith |
A method for working a component to reduce a propensity for advanced dynamic change analyzes affects of a StressWave process on at least one location on a size and shape of the component. The component is also analyzed as to the affects of adding at least one feature on a size and shape of the component. A beginning shape of the component is then extrapolated. |
154 |
LOW INTENSITY SHOT PEENING |
US12185968 |
2008-08-05 |
US20100031721A1 |
2010-02-11 |
Wilfred A. Sundstrom; Brian K. Kopp |
A method may be present for sending shot onto a surface. A stream of shot may be directed into an inlet of a nozzle. The stream of shot may be redirected to form a plurality of streams of shot within the nozzle. The plurality of streams of shot may be directed out of a plurality of outputs of the nozzle. |
155 |
Shot, devices, and installations for ultrasonic peening, and parts treated thereby |
US12498179 |
2009-07-06 |
US07647801B2 |
2010-01-19 |
Patrick Cheppe; Vincent Desfontaine; Jean-Michel Duchazeaubeneix |
A system for ultrasonically peeing surfaces includes a sonotrode comprising a body material and a vibrating surface, the vibrating surface coated with a coating material having a hardness greater than the body material, a treatment chamber defined at least in part by the vibrating surface, and at least one piece of shot within the treatment chamber to be excited by the vibrating surface of the sonotrode, the at least one piece of shot having a hardness greater than or equal to 800 HV. |
156 |
Apparatus and method for electric spark peening of gas turbine components |
US12310565 |
2007-08-30 |
US20100008786A1 |
2010-01-14 |
Igor Timoshkin; Scott J. MacGregor |
Peening provides compression of component (6, 46, 56) surfaces in order to create residual surface compressions to resist crack propagation in components such as aerofoils. Previously peening techniques have had problems with respect to achieving adequate treatment depths, speed of treatment and with respect to effectiveness. By the present method arrangement an electrical conductor (1, 41, 51) in the form of a wire is subject to electrical pulses to cause evaporation and subsequent breakdown with high power ultrasound (HPU) propagation in a volume of dielectric fluid towards a component and so peening. The electrical conductor (1, 41, 51) ensures that there is limited possibility of electrical discharge to the component (6, 46, 51) surface whilst the positioning of the wire (1, 41, 51) relative to the surface can be adjusted to achieve best effect particularly if reflector (5) devices are utilised to concentrate (HPU) pulse presentation to the component (6, 46, 56). Furthermore, the component (6, 46, 56) can be surface treated in order to provide protection from potentially damaging emissions from evaporation and electrical discharge to the wire (1, 41, 51). |
157 |
METHOD AND APPARATUS FOR HARDENING A SURFACE OF A COMPONENT |
US11720735 |
2005-11-24 |
US20090277541A1 |
2009-11-12 |
Joachim Bamberg; Roland Hessert; Wilhelm Satzger |
A method and apparatus for surface hardening parts is disclosed. To harden a surface of a part, a relative movement, or advancing motion, is established between the part and at least one sonotrode-like tool which is excited in the ultrasonic frequency range. The tool is aligned during the surface hardening in such a way to the surface of the part to be hardened that a tool axis running in the effective direction of the tool runs at an angle to the surface of the part to be hardened. |
158 |
Method of working metal, metal body obtained by the method and metal-containing ceramic body obtained by the method |
US12002967 |
2007-12-19 |
US07574888B2 |
2009-08-18 |
Zenji Horita; Katsuaki Nakamura; Koji Neishi; Michihiko Nakagaki; Kenji Kaneko |
A method of working metal in which the microstructure of metal body is rendered fine to thereby enhance the strength, ductility or homogeneity thereof; a metal body obtained by the metal working method; and a metal-containing ceramic body obtained by the metal working method. In this metal working method, the deformation resistance of metal body or metal-containing ceramic body (hereinafter referred to simply as “metal body”) is lowered locally to thereby form low deformation resistance regions in the metal body, and shear deformation of the low deformation resistance regions is effected so as to fine the microstructure of metal body. In particular, the metal body is formed in unidirectionally drawn configuration so as to produce low deformation resistance regions crossing the metal body. Further, with respect to two non-low deformation resistance regions arranged to sandwich low deformation resistance region crossing the metal body, one non-low deformation resistance region is caused to have a relative position change to the other non-low deformation resistance region so as to effect shear deformation of the low deformation resistance region. The low deformation resistance regions can be moved along the direction of drawing of the metal body. |
159 |
METHOD FOR RELIEVING RESIDUAL STRESS IN AN OBJECT |
US11844800 |
2007-08-24 |
US20090049912A1 |
2009-02-26 |
Weite Wu |
A method for relieving residual stress in an object includes: (a) applying a vibration energy to the object over a frequency range; (b) monitoring vibration behavior of the object over the frequency range so as to identify a reference frequency, where the vibration amplitude of a fundamental wave component of the wave pattern is approximately one third of a maximum vibration amplitude of a resonate frequency of the object, and an optimum frequency, where the frequency and the vibration amplitude of the harmonic wave component of the wave pattern are respectively larger than those of the harmonic wave component of the wave pattern of the reference frequency; and (c) applying the vibration energy to the object at the identified optimum frequency for an extended period of time. |
160 |
MANUFACTURING PROCESS FOR EXTENDING A LENGTH OF SERVICE OF COMPONENT PARTS |
US11688091 |
2007-03-19 |
US20080229798A1 |
2008-09-25 |
David B. Smith |
A method for working a component to reduce a propensity for advanced dynamic change analyzes affects of a StressWave process on at least one location on a size and shape of the component. The component is also analyzed as to the affects of adding at least one feature on a size and shape of the component. A beginning shape of the component is then extrapolated. |