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3 edition of Performance of a multistage depressed collector with machined titanium electrodes found in the catalog.

Performance of a multistage depressed collector with machined titanium electrodes

Peter Ramins

Performance of a multistage depressed collector with machined titanium electrodes

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Published by National Aeronautics and Space Administration, Scientific and Technical Information Division, For sale by the National Technical Information Service] in [Washington, D.C.], [Springfield, Va .
Written in English

    Subjects:
  • Traveling-wave tubes.

  • Edition Notes

    StatementPeter Ramins and Ben T. Ebihara.
    SeriesNASA technical paper -- 2891.
    ContributionsEbihara, Ben T., United States. National Aeronautics and Space Administration. Scientific and Technical Information Division.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15274266M

    Online business directory of industrial supplies manufacturers, industrial engineering products manufacturers, industrial equipment manufacturers, industrial machines manufacturers, wholesalers, dealers and exporters in India. Stainless steel: is a family of iron-based alloys that contain a minimum of approximately 11% chromium: 3 a composition that prevents the iron from rusting, as well as providing heat-resistant properties.: 3 Different types of stainless steel include the elements carbon (from % to greater than %), nitrogen, aluminum, silicon, sulfur, titanium, nickel, copper, selenium, niobium. After we located a satisfactory motor point, a gauge sheath was passed over the probe to a depth 1 cm proximal to the tip of the probe. A second slightly larger gauge sheath was then passed over the outside of the first sheath to the same depth, in order to gently enlarge the passageway for the insertion of the electrode mounted on the gauge needle. titanium. The cellulose coatings consist of electrodes. accomplish the following: Figure Welding with a heavy coated electrodeThey produce a reducing or nonoxidizing. CLASSIFICATION OF ELECTRODES. atmosphere, which acts as a shielding medium. around the weld deposit electrodes in a furnace or oven before using them to.


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Performance of a multistage depressed collector with machined titanium electrodes by Peter Ramins Download PDF EPUB FB2

The performance of a multistage depressed collector (MDC) with machined titanium electrodes was evaluated in conjunction with an W, 8- to GHz travelling-wave tube (TWT) and was compared with the performances of geometrically identical copper and isotropic graphite electrode MDC's operated with the same TWT.

Get this from a library. Performance of a multistage depressed Performance of a multistage depressed collector with machined titanium electrodes book with machined titanium electrodes. [Peter Ramins; Ben T Ebihara; United States. National Aeronautics and Space Administration. Scientific and Technical Information Division.].

The performance of a multistage depressed collector (MDC) with machined titanium electrodes was evaluated in con- junction with an 8OO-W, 8- to GHz traveling-wave tube (TWT) and was compared with the performances of geometri- cally identical copper and isotropic graphite electrode MDC’s operated with the same TWT.

The performance of a multistage depressed collector (MDC) with machined titanium electrodes was evaluated in conjunction with an W, 8- to GHz travelling-wave tube (TWT) and was compared with the performances of geometrically identical copper and isotropic graphite electrode MDC's operated with the same : Peter Ramins and Ben T.

Ebihara. tistage collector performance is shaping of the electric and magnetic fields inside the collector in such a way that the electrons land on the electrodes perpendicularly.

The performance of a multistage depressed collector (MDC) with machined titanium electrodes was evaluated in conjunction with an W, 8- to GHz travelling-wave tube (TWT) and was compared. Electrodes. Chnstos Commnellis and Eric Plattner Titanium Anodes for Steel Strip Electrogalvamzing.

Kotowski and B. Busse Iridium Oxide Coated Titanium as Anode in Copper Electro\nnning. Cesare G. Ferron and Paul F. Duby Factors Affecting the Performance of PbOa Anodes in the Performance of a multistage depressed collector with machined titanium electrodes book of Hexavalent Chromium.

Vora, S. Taylor, and G. In this investigation, a comparative study has been conducted on the EDM performance of Ti-5AlSn titanium alloy using different type of electrodes viz.

copper, brass and zinc. The process performance has been measured by means of surface roughness (R a), surface crack density (SCD), radial overcut (ROC) and recast by: 1. The Production ofElectrical Discharge Machining Electrodes Using SLS: Preliminary Results Brent E.

Stucker!, Walter L. Bradley!, Somchin (Jiab) Norasetthekul2, Philip T. Eubank2 [1] Department ofMechanical Engineering, Texas A&MUniversity, College Station, TX [2] Department ofChemical Engineering, Texas A&MUniversity, College Station, TX.

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Electrical discharge machining (EDM) which is very prominent amongst the non conventional machining methods is expected to be used quite extensively in machining titanium alloys due to the favorable features and advantages that it offers. This thesis presents the EDMing of titanium alloy (Ti) using copper impregnanted graphite electrode with diameter of 8 by: 4.

International Journal of Engineering Research and General Science Volume 2, Issue 4, June-July, Optimization of Process Parameters Influencing MRR, Surface Roughness and Electrode Wear During Machining of Titanium Alloys by WEDM P.

Abinesh1, Dr. Ti-5AlSn is grade 6 Titanium alloy considered in this investigation because of its extensive rate of applications in steam turbine blades, airframes, compressor blades, jet engines, aircraft engine, structural part and Performance of a multistage depressed collector with machined titanium electrodes book fuel tanks etc.

Electro discharge machining (EDM) can effectively machine titanium alloy, but the selection of suitable machining process parameters is a challenging task for the Cited by: 5. Usually, multistage depressed collector (MDC) was assembled to the devices to improve the efficiency.

PG electrodes are commonly brazed to insulation materials (such as alumina) when used in MDC[3][4]. Before Performance of a multistage depressed collector with machined titanium electrodes book, PG electrodes should be metallized for the purpose of : Ma Tianjun, Zhao Shike, Deng Feng, Hu Jingjun, Wu Kun.

A review on machining of titanium based alloys using EDM and WEDM 89 p(4SeP]RTSFcdSh6T]cTa6A "cS Rev. Adv. Mater. Sci. 36 () Corresponding author: S. Basavarajappa, e-mail: [email protected] A REVIEW ON MACHINING OF TITANIUM BASED ALLOYS USING EDM AND WEDM M. Manjaiah 1, S.

Narendranath 1 and S. Basavarajappa 2File Size: 2MB. Due to widespread application of Ti-6Al-4V especially in automotive, aerospace, defense, and biomedical industries; machinability of this alloy is of immense importance. Very low thermal conductivity of Ti-6Al-4V is mainly responsible for its poor machinability.

During Electro-Discharge Machining (EDM), conductivity of the workpiece as well as electrode plays a vital role affecting Cited by: A promising new multistage depressed collector (MDC) (4) CW performance of the TWT-MDC and a comparison electrode material, a particular form of isotropic graphite of the predicted (analytical) and measured MDC manufactured by POCO Graphite, Inc., (DFP-2) was reported performance in references 1 to : Peter Ramins, Ben Ebihara.

utilizing a multistage depressed collector (MSDC). We describe the development and production of the VKUM series, pioneering MSDC technology in the direct broadcasting satellite (DBS) market. With a saturated efficiency of 40 percent this klystron far surpasses the performance of a conventional klystron.

As a result, this. Empi StimCare Premium electrodes provide even, comfortable stimulation eliminating uncomfortable spiked current provided by typical electrodes. A tinted, double-coated storage liner allows electrodes to be applied on either side for storage.

Latex free/5(27). Electric discharge machining (EDM) is an effective manufacturing technique that enables the production of parts made of hard materials with complicated geometry that are difficult to produce by conventional machining processes.

EDM is a process of eroding material by transient action of electric sparks on electrically conductive materials, one being the workpiece the other being the electrode Cited by: 2. A promising new multistage depressed collector (MDC) electrode material, a particular form of isotropic graphite manufactured by POCO Graphite, Inc., (DFP-2) was reported in references 1 to 3.

The low secondary-electron-emission yield carbon electrode surfaces produced a very significant. USA1 US14/, USA USA1 US A1 US A1 US A1 US A US A US A US A1 US A1 US A1 Authority US United States Prior art keywords etc vacuum printer including printing Prior art date Legal status (The legal status is an Cited by: 4.

electrode to be good electrical and thermal conductors. Li et Effects of Wire Electrical Discharge Machining on Fracture Toughness of Grade 5 Titanium Alloy Daniel M. Madyira and Esther T. Akinlabi, Member, IAENG T Proceedings of the World Congress on Engineering Vol II, WCEJuly 2 - 4,London, U.K.

ISBN:   The collector is typically a multistage depressed collector, i.e. one having several electrodes raised to different potentials and insulated from one another by electrically insulating parts. The potentials are chosen in such a way that the electrons having a certain energy reach if possible the electrode that is at a potential corresponding.

laborious to machine materials is comfortably being machined by a non contact action Electric Discharge Machining (EDM). In this research an effort has been made to examine and compare surface quality of EDMed M2 tool steel with Cu-Ti powder metallurgy (PM) shaped electrodes and established copper electrode.

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electrode wear and machining efficiency are two problems to be solved in the machining process [3]. A seriously worn electrode would directly affect the depth and shape of 3D cavities.

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After features or patterns were machined on a copper plate by micro EDM, the plate was used as a tool to fabricate the electrode by REDM. Using the electrodes, patterns can be machined by micro ECM.

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The electrode is a hollow cylinder made of electrolytic copper with internal diameter of mm and external diameter of 10 mm. A method for producing a uniform, highly textured surface on oxygen-free, high conductivity (OFHC) copper by ion bombardment using sputtered molybdenum as a texture-inducing masking film was developed and used to provide samples for study.

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Brass wire was employed as ebook electrode for the investigation. The best combination of machining parameter viz. machine feed rate (4 mm/min), wire speed (8 m/min), wire tension (kg) and voltage (60V) were identified. The selection of.