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WO2019034284A1 - Procédé et dispositif de consolidation par décapage à l'abrasif ou de consolidation par laminage - Google Patents

Procédé et dispositif de consolidation par décapage à l'abrasif ou de consolidation par laminage Download PDF

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Publication number
WO2019034284A1
WO2019034284A1 PCT/EP2018/025194 EP2018025194W WO2019034284A1 WO 2019034284 A1 WO2019034284 A1 WO 2019034284A1 EP 2018025194 W EP2018025194 W EP 2018025194W WO 2019034284 A1 WO2019034284 A1 WO 2019034284A1
Authority
WO
WIPO (PCT)
Prior art keywords
component
solidification
cooled
jet
hardening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2018/025194
Other languages
German (de)
English (en)
Inventor
Gerd Waning
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linde GmbH
Original Assignee
Linde GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Linde GmbH filed Critical Linde GmbH
Publication of WO2019034284A1 publication Critical patent/WO2019034284A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/10—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P9/00—Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings; Features of such surfaces not otherwise provided for, their treatment being unspecified
    • B23P9/02—Treating or finishing by applying pressure, e.g. knurling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C11/00—Selection of abrasive materials or additives for abrasive blasts
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
    • C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/01—Aircraft parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/003—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods using material which dissolves or changes phase after the treatment, e.g. ice, CO2

Definitions

  • the invention relates to a method and a device for solidification blasting of a component, wherein the surface or at least a part of the surface of the component is subjected to a hardening beam from a blasting medium.
  • Solidification beam of a blasting agent and optionally a fluid such as air directed to the surface of a component are, for example, in the aerospace and automotive field used steering, drive and
  • blasting agent are mostly spherical or approximately spherical particles (so-called. Strahlkarkugeln) used, such as steel balls. These blasting agent balls strike the component surface at high speed of, for example, over 80 m / s, bounce off the surface and release part of their kinetic energy.
  • the blasting agent acts like a small forging hammer.
  • the blasting agent beads penetrate at least partially into the material of the component and leave in the component surface mostly dome-shaped impacts.
  • the component material is at least partially displaced by the penetrating blasting agent balls and thereby compacted, whereby a plastic deformation is formed.
  • a compressive residual stress is generated in the component edge zone, ie in the surface or in a region of the component near the surface.
  • Solidification rollers known in which a component with pressure of a roller is applied to increase the fatigue strength of the component.
  • the object of the present invention is to further improve the solidification blasting or rolling, in particular to produce higher compressive residual stresses and thus to further increase the fatigue strength of components.
  • This object is achieved by a method and a device for
  • the surface or at least part of the surface of the component is subjected to a hardening jet with a blasting medium.
  • the device has a solidification jet unit for this purpose.
  • this solidification jet unit may have one or more nozzles or at least one centrifugal or paddle wheel.
  • blasting agent spherical or approximately spherical particles are expediently used, so-called.
  • Blasting agent balls such as steel balls, glass beads, sand and / or high-pressure water jets.
  • the blasting agent in the hardening jet is directed onto the surface of the component together with a conveying medium, eg air.
  • the pumped medium is in particular under pressure, whereby the blasting agent can be accelerated and transported to the component surface.
  • the surface or at least the part of the surface of the component is cooled before and / or during the application of the solidification jet.
  • the device has a cooling unit.
  • a temperature gradient is expediently generated in the surface of the component. Due to the cooling of the component surface and in particular by the temperature gradient thus generated, a volume contraction arises, which leads in particular to tensile residual stresses in the surface.
  • Blasting agent balls are these tensile residual stresses expediently in
  • Hardening jet methods in particular a lower susceptibility to corrosion and a higher resistance to change of the component by higher
  • Solidification jets are particularly cost-effective and performed with higher efficiency than conventional hardening beam methods, as in particular a beam time, ie the time duration for which the component surface with the
  • Solidification beam is applied, can be reduced.
  • the cooling of the Surface can be achieved that this retained austenite only in the surface or in near-surface areas to martensite, which in particular leads to the generation of additional residual compressive stresses and a higher surface hardness.
  • the retained austenite can be retained in the core or in the inner regions of the component, which improves in particular
  • Toughness properties can be achieved in the core of the component.
  • the service life of the component in terms of fatigue strength and resistance to stress and vibration crack corrosion can be increased by the compressive stresses generated, in particular on components which are exposed to strong alternating stresses.
  • the invention is particularly suitable for aerospace and automotive components, e.g. for springs, shafts such as drive or crankshafts, gears, connecting rods, steering and transmission parts, turbine blades, etc.
  • a so-called pressure-blasting can be performed, wherein the blasting agent is conveyed and accelerated by means of nozzles through liquid or gaseous carrier means.
  • Solidification jet unit may have one or more nozzles for this purpose.
  • solidifying jets for example, a so-called.
  • Spinning wheel blasting can be performed, wherein the blasting agent is accelerated by blast wheels, which are provided with throwing blades or corresponding devices.
  • the corresponding solidification jet unit has for this purpose at least one spinner or paddle wheel.
  • Another aspect of the present invention relates to a method and a
  • Apparatus for solidifying a component The surface or at least a part of the surface of the component is subjected to a hardening roller. Before and / or during the application of the hardening roller, the surface or at least the part of the surface of the component is cooled.
  • solidification rolling is a mechanical surface hardening of components by mechanical pressurization the component surface compressive stresses in the surface or in
  • the cooling of the component surface according to the invention and the temperature gradient thus generated in the component surface produce those generated by the solidification rolls
  • the component or its surface can in particular initially have room temperature and be cooled down by this. It is also conceivable that the component or the component surface initially has a temperature above room temperature and is cooled down to a temperature below room temperature before or during the application of the hardening jet or the hardening roller. According to a particularly preferred embodiment, the surface or at least the part of the surface of the component is cooled during the application of the hardening beam by the solidification jet itself. In particular, the component or its surface can be pre-pressurized with the
  • Solidification beam have room temperature and are not actively cooled and passively cooled during the application of the solidification itself, preferably to temperatures below room temperature. In this way, during the solidification jet, in particular, that part of the component surface which is acted upon by the blasting agent is automatically cooled. Preferably, the blasting agent is cooled, in particular before it is in the
  • the blasting agent can be stored, for example, cooled or cooled (immediately) before introduction into the hardening beam to the desired temperature.
  • the component surface itself can be cooled by the impacting shot blasting balls.
  • the hardening beam advantageously becomes one
  • Coolant added is expedient to use a mixture of conveying air, blasting medium and cooling medium as hardening jet.
  • the component surface is thus subjected to a cooled hardening beam and cooled in this way expediently.
  • liquid nitrogen and / or supercooled water ice granules can be used as the cooling medium.
  • the surface or at least the part of the surface of the component is advantageously cooled by itself during the application of the hardening roller.
  • the hardening roller is cooled for this purpose by a suitable cooling device.
  • the blasting agent is cooled by means of liquid nitrogen.
  • the hardening roll is advantageously cooled by means of liquid nitrogen.
  • the blasting agent or the solidification roller can thus be cooled to low temperatures in a cost-effective and low-effort manner.
  • C0 2 pellets and / or C0 2 snow may be advantageously added to the solidification jet to cool the abrasive.
  • a mixture of conveying air, blasting agent and C02 pellets and / or C0 2 snow is used as hardening beam.
  • Dry ice in the form of C0 2 pellets or C0 2 snow in particular enables a cost-effective and low-cost cooling of the component surface.
  • the C0 2 pellets and / or the C0 2 snow are pre-cooled, in particular by means of liquid nitrogen.
  • the surface or at least the part of the surface of the component is preferably cooled by means of the pre-cooled C02 pellets and / or the pre-cooled C0 2 snow.
  • the temperature of the dry ice is reduced before it is supplied to the component surface or the solidification jet.
  • the surface of the component can thus be even more cooled in a cost effective and low-cost manner.
  • a cost effective and low-cost manner in particular, thus a
  • the surface or at least the part of the surface of the component is first preheated, in particular to a
  • the surface of the component is cooled by the solidification jet or the solidification roller.
  • the surface temperature is increased to or near the tempering temperature of the component material.
  • the surface is cooled in particular by the hardening jet or the hardening roller, in particular to temperatures below room temperature, whereby a high temperature gradient can be generated in the surface.
  • supercooled water ice granules are added to the solidification jet as the cooling medium.
  • Hardening beam can thus be further increased, since in this way particularly high heat transfer coefficients can be achieved.
  • a component containing retained austenite martensite can be immediately expanded when it is at the appropriate tempering temperature or at temperatures close to
  • properties of the surface of the component are specifically influenced by means of the temperature gradient generated in the surface of the component.
  • the invention thus produces the product generated in the component surface Temperature gradient as a parameter for the solidification blasting or for the
  • Surface of the component in particular the residual compressive stresses in the surface or near-surface areas of the component and / or the fatigue strength of the component, can be selectively influenced.
  • one or more further parameters of the solidification jet or of the solidification rolling are set and / or regulated in order to influence properties of the surface of the component in a targeted manner.
  • the solidification blasting or hardening rolling can advantageously be carried out fully automatically.
  • locally different properties can be generated by suitably setting or regulating these parameters in different parts of the component surface.
  • Solidification beam is applied (beam time); the special one used
  • Blasting media in particular the type or material of the blasting medium (for example steel balls, glass beads, sand, high-pressure water jet) and / or a diameter or size of the individual blasting abrasive balls; a component pretreatment.
  • the type or material of the blasting medium for example steel balls, glass beads, sand, high-pressure water jet
  • a diameter or size of the individual blasting abrasive balls for example steel balls, glass beads, sand, high-pressure water jet
  • the jet speed must not be too high, as the surface can be damaged if the jet speeds are too high.
  • the jet speed can be in particular in a range of up to 160 m / s.
  • Conveying medium may suitably affect the jet velocity become.
  • the pressure of the pumped medium can be up to 10 bar.
  • the angle of impact can be determined in particular by the spatial orientation of the
  • Solidification jet nozzle are changed to the surface.
  • Component pretreatment can be carried out, for example, heat treatment processes before solidification blasting.
  • the device for solidification blasting may in particular comprise one or more nozzles.
  • a solidification jet nozzle may be provided to guide the solidification jet to the component surface.
  • a cooling medium nozzle may for example be provided to a cooling medium for cooling the
  • a hardening jet nozzle can be provided in order to guide a mixture of blasting agent and cooling medium as hardening jet onto the component surface.
  • a conventional device for solidification jets can be retrofitted in a structurally and financially simple manner by such nozzles in the
  • FIGS 1 to 4 schematically each show a preferred embodiment of a
  • Solidification blasting device which is adapted to carry out a preferred embodiment of a method according to the invention for solidification blasting
  • Figures 5 and 6 each schematically a preferred embodiment of a
  • Solidification rolling device which is adapted to carry out a preferred embodiment of a solidification rolling method according to the invention.
  • FIG. 1 shows a preferred embodiment of a device according to the invention for the solidification blasting of a component 101 is shown schematically and with 100 designated.
  • the solidification jet apparatus 100 is configured to perform a preferred embodiment of a method according to the invention.
  • the component 101 may be, for example, a component of the aerospace or automotive sector, such as a drive or crankshaft.
  • a component of the aerospace or automotive sector such as a drive or crankshaft.
  • Solidification blasting is the surface 102 of the component 101 with a
  • Solidification jet device 100 a solidification jet unit 1 10 on.
  • the solidification jet device 100 for so-called.
  • a solidification jet 120 is in this example, a mixture of a blasting agent 121 and a fluid 122 of the
  • Component surface 102 is supplied.
  • a blasting agent 121 for example
  • the solidification jet unit 1 10 has for this purpose a nozzle 1 1 1 and a blasting agent supply 121 a and an air supply 122a.
  • the blasting agent balls 121 in the solidifying jet 120 strike with high
  • Fatigue strength of the component 101 is increased.
  • the surface 102 of the component 101 is cooled and a temperature gradient is generated in the component surface 102.
  • the solidification jet apparatus 100 has a cooling unit 130.
  • the cooling unit 130 is set up to cool the blasting agent 121 by means of liquid nitrogen and to supply a cooled blasting medium 121 to the hardening jet 120.
  • the cooling unit 130 has a LIN supply 131 a.
  • the component surface 102 is thus supplied with a mixture of precooled steel balls 121, air 122 and cooling medium 131 as solidification jet 120.
  • the component surface 102 is thus cooled by the solidification jet 120 itself, in particular to a temperature below room temperature, in particular to a value below -80 ° C., for example to -100 ° C.
  • a control unit 140 is set up to regulate parameters of the solidification jet in order to specifically influence the compressive residual stresses generated in the surface 102 and thus the fatigue strength of the component 101.
  • FIG. 2 schematically shows a further preferred embodiment of a device according to the invention for solidification blasting and designated by 200. Identical reference numerals in the figures designate identical or identical elements.
  • the device 200 has a solidification jet unit 210 with a nozzle 21 1, a blasting agent feed 221a and an air feed 222a in order to supply a mixture of a blasting agent in the form of steel balls 221 and a conveying medium in the form of air 222 as solidifying jet 220 to the component surface 102. whereby dome-shaped impacts 103 are generated in the surface 102.
  • the device 200 has a cooling unit 230 with a coolant supply 231 a and a second nozzle 232. By means of this cooling unit 230, a cooling medium 231 in the form of liquid nitrogen is supplied to the part of the component surface 102 which passes through the
  • Solidification jet 220 is acted upon.
  • the nozzles 211 and 232 are moved along the processing direction 104 over the component surface 102 in order to process individual portions of the surface 102 consecutively or the component 101 is moved relative to the nozzles 21 1 and 232.
  • a control unit 140 is provided in order to regulate parameters of the solidification jet and to selectively influence residual compressive stresses in the surface 102 and the fatigue strength of the component 101.
  • FIG. 3 diagrammatically shows a further preferred embodiment of a device according to the invention for solidification blasting and designated by 300.
  • Identical reference numerals in the figures designate identical or identical elements.
  • the apparatus 300 has a solidification jet unit 210, analogous to the solidification jet unit shown in FIG. 2, in order to guide a first hardening jet 220 of steel balls 221 and air 222 onto the component surface 102.
  • the device 300 has a solidification jet unit 1 10 with cooling unit 130, analogous to the solidification jet unit from FIG. 1, around which
  • Component surface 102 to supply a second, cooled solidification jet 120.
  • the component surface 102 is cooled.
  • a conventional solidification blasting apparatus can be easily retrofitted by, for example, the
  • Solidification jet unit 1 10 is implemented in the conventional device. As solidification jets advantageously also a so-called. Blast Wheel blasting can be performed. A corresponding preferred embodiment of a
  • a corresponding solidification jet unit 410 in this example has a spinner 41 1 with blades to accelerate the abrasive.
  • a blasting agent supply 421 a is provided to supply the blast wheel 41 1 blasting agent 121 in the form of steel balls.
  • a cooling unit 430 is arranged to cool the blasting agent balls 121 by means of liquid nitrogen before they are fed to the blast wheel 41 1.
  • the cooling unit 430 has a LIN supply 431a.
  • the component 101 may, for example, be positioned on a conveyor belt and thus moved along a processing direction 404 relative to the device 400.
  • FIG. 5 schematically shows a preferred embodiment of a device according to the invention for consolidating rolling of a component 501 and designated 500, which is adapted to carry out a preferred embodiment of a method according to the invention for solidification rolling.
  • the component 501 is, for example, a component of the aerospace or automotive sector, for example a drive or crankshaft.
  • the surface 502 of the component 501 is subjected to a hardening roller 520.
  • the component 501 is thereby along a Machining direction 504 moves relative to the solidification roller 520, which rotates along the direction of rotation 505.
  • the device 500 has a cooling unit 530 with a coolant supply 531 a and a nozzle 532 through which a cooling medium 531, e.g. in the form of liquid nitrogen the
  • Solidification roller 520 and the component surface 502 is supplied.
  • a control unit 540 is arranged to control parameters of hardening rolling, e.g. a force with which the solidification roller 520 on the
  • Component surface 502 acts to generate those in surface 502
  • FIG. 6 diagrammatically shows a further preferred embodiment of a device 600 according to the invention for hardening rollers.
  • the apparatus 600 is preferably configured to cool the surface 502 of the component 501 itself by the consolidation roller 520.
  • a cooling unit 630 is provided with a coolant supply 631 a and a nozzle 632, through which a cooling medium 631, for example liquid nitrogen, is supplied to the hardening roller 520 in order to cool it.
  • a cooling medium 631 for example liquid nitrogen

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

La présente invention concerne un procédé et un dispositif (100) de consolidation par décapage à l'abrasif ou de consolidation par laminage d'un composant (101), la surface (102) ou au moins une partie de la surface (102) du composant (101) étant sollicitée par un jet de consolidation (120) comportant un abrasif de décapage (121) ou par un rouleau de consolidation, la surface (102) ou au moins la partie de la surface (102) du composant (101) étant refroidie avant et/ou pendant la sollicitation par le jet de consolidation (120) ou par le rouleau de consolidation.
PCT/EP2018/025194 2017-08-17 2018-07-12 Procédé et dispositif de consolidation par décapage à l'abrasif ou de consolidation par laminage Ceased WO2019034284A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017007801.7 2017-08-17
DE102017007801.7A DE102017007801A1 (de) 2017-08-17 2017-08-17 Verfahren und Vorrichtung zum Verfestigungsstrahlen oder Verfestigungswalzen

Publications (1)

Publication Number Publication Date
WO2019034284A1 true WO2019034284A1 (fr) 2019-02-21

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PCT/EP2018/025194 Ceased WO2019034284A1 (fr) 2017-08-17 2018-07-12 Procédé et dispositif de consolidation par décapage à l'abrasif ou de consolidation par laminage

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Country Link
DE (1) DE102017007801A1 (fr)
WO (1) WO2019034284A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115056147A (zh) * 2022-06-21 2022-09-16 华东理工大学 回转工件水射流表面强化抛光装置及其加工方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022106559A1 (de) 2022-03-21 2023-09-21 Muyo Oberflächentechnik GmbH Verfahren und vorrichtung zur vorbehandlung eines bauteils vor einem beschichtungsprozess

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Publication number Priority date Publication date Assignee Title
US3276234A (en) * 1963-07-11 1966-10-04 Pangborn Corp Freeze peening apparatus and method
DE3142270A1 (de) * 1981-10-24 1983-05-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Verfahren zum verbessern der festigkeitseigenschaften in den oberflaechennahen bereichen von werkstuecken,insbesondere aus stahl
JPS5988259A (ja) * 1982-11-13 1984-05-22 Ishikawajima Harima Heavy Ind Co Ltd ピ−ニング装置
JPS6138869A (ja) * 1984-07-31 1986-02-24 Toyota Motor Corp ショットピーニング装置
EP0947589A1 (fr) * 1998-03-31 1999-10-06 Volkswagen Aktiengesellschaft Procédé de traitement d' une pièce métallique
WO2004048039A1 (fr) * 2002-11-26 2004-06-10 Sung-Hyouck Lim Systeme de grenaillage a ejection equipe d'une unite de refroidissement
US6874344B1 (en) * 1999-11-04 2005-04-05 C. D. Wälzholz-Brockhaus Gmbh Cold rolling method
EP1598444A1 (fr) * 2004-05-06 2005-11-23 Siemens Aktiengesellschaft Procédé d'ajustement par projection de carboglace de la conductivité électrique d'un revêtement d'un composant d'une machine, cette conductivité électrique étant variable avec la pression
EP1842617A1 (fr) * 2006-04-04 2007-10-10 ThyssenKrupp Technologies AG Procédé et dispositif de durcissement partiel de tôles ou de produits semi finis utilisant un faisceau laser et une protection de gaz contenant des particules solides ; Tôle ou produit semi fini en acier partiellement durci
WO2016113552A1 (fr) * 2015-01-16 2016-07-21 Cummins Ltd Procédé de fabrication d'une roue de turbine
EP3132882A1 (fr) * 2015-08-20 2017-02-22 Linde Aktiengesellschaft Procede et dispositif de durcissement au laser d'une piece a usiner

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3276234A (en) * 1963-07-11 1966-10-04 Pangborn Corp Freeze peening apparatus and method
DE3142270A1 (de) * 1981-10-24 1983-05-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Verfahren zum verbessern der festigkeitseigenschaften in den oberflaechennahen bereichen von werkstuecken,insbesondere aus stahl
JPS5988259A (ja) * 1982-11-13 1984-05-22 Ishikawajima Harima Heavy Ind Co Ltd ピ−ニング装置
JPS6138869A (ja) * 1984-07-31 1986-02-24 Toyota Motor Corp ショットピーニング装置
EP0947589A1 (fr) * 1998-03-31 1999-10-06 Volkswagen Aktiengesellschaft Procédé de traitement d' une pièce métallique
US6874344B1 (en) * 1999-11-04 2005-04-05 C. D. Wälzholz-Brockhaus Gmbh Cold rolling method
WO2004048039A1 (fr) * 2002-11-26 2004-06-10 Sung-Hyouck Lim Systeme de grenaillage a ejection equipe d'une unite de refroidissement
EP1598444A1 (fr) * 2004-05-06 2005-11-23 Siemens Aktiengesellschaft Procédé d'ajustement par projection de carboglace de la conductivité électrique d'un revêtement d'un composant d'une machine, cette conductivité électrique étant variable avec la pression
EP1842617A1 (fr) * 2006-04-04 2007-10-10 ThyssenKrupp Technologies AG Procédé et dispositif de durcissement partiel de tôles ou de produits semi finis utilisant un faisceau laser et une protection de gaz contenant des particules solides ; Tôle ou produit semi fini en acier partiellement durci
WO2016113552A1 (fr) * 2015-01-16 2016-07-21 Cummins Ltd Procédé de fabrication d'une roue de turbine
EP3132882A1 (fr) * 2015-08-20 2017-02-22 Linde Aktiengesellschaft Procede et dispositif de durcissement au laser d'une piece a usiner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115056147A (zh) * 2022-06-21 2022-09-16 华东理工大学 回转工件水射流表面强化抛光装置及其加工方法
CN115056147B (zh) * 2022-06-21 2023-11-14 华东理工大学 回转工件水射流表面强化抛光装置及其加工方法

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