DOCSLIB.ORG

Shear Forming of 304L Stainless Steel – Microstructural Aspects Shear Forming of 304L Stainless Steel – Microstructural Aspects M

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Shear Forming of 304L Stainless Steel – Microstructural Aspects Shear Forming of 304L Stainless Steel – Microstructural Aspects M Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect ProcediaScienceDirect Engineering 00 (2017) 000–000 Available online at www.sciencedirect.com www.elsevier.com/locate/procedia Procedia Engineering 00 (2017) 000–000 ScienceDirect www.elsevier.com/locate/procedia Procedia Engineering 207 (2017) 1719–1724 International Conference on the Technology of Plasticity, ICTP 2017, 17-22 September 2017, International Conference on theCambridge, Technology United of Plasticity, Kingdom ICTP 2017, 17-22 September 2017, Cambridge, United Kingdom Shear forming of 304L stainless steel – microstructural aspects Shear forming of 304L stainless steel – microstructural aspects M. Guillota,*, T. McCormackb, M. Tuffsb, A. Rosochowskia, S. Hallidayb, M. Guillota,*, T. McCormackP.b, M.Blackwell Tuffsb,a A. Rosochowskia, S. Hallidayb, a aUniversity of Strathclyde, 75P. Montrose Blackwell Street, Glasgow G1 1XJ, United-Kingdom bRolls-Royce, PO Box 31, Derby DE24 8BJ, United-Kingdom aUniversity of Strathclyde, 75 Montrose Street, Glasgow G1 1XJ, United-Kingdom bRolls-Royce, PO Box 31, Derby DE24 8BJ, United-Kingdom Abstract Abstract Shear forming is an incremental cold forming process. It transforms 2D plates into 3D structures commonly consisting of conicalShear geometry. forming isRoller(s) an increme pushntal the coldblank forming onto a coneprocess.-shaped It transformsmandrel, resulting 2D plate ins ainto decrease 3D structures of the initial commonly thickness. consisting The shear of conicalforming geometry. process has Roller(s) diverse push advantages the blank, such onto as a coneimproved-shaped material mandrel, utilisation, resulting enhancedin a decrease product of the characteristics, initial thickness. good The surface shear finisformingh, consistent process hasgeometric diverse control advantages and ,reduced such as production improved materialcosts. Shear utilisation, forming enhanced has potential product application characteristics,s in a widegood range surface of finisconicalh, consistent geometries geometric used within control advanced and reduced aerospace production structures, costs. which Shear are formingcurrently has manufactured potential application from bulks forgingsin a wide with range high of conicalassociated geometries machining used costs. within advanced aerospace structures, which are currently manufactured from bulk forgings with high associatedResearch machining findings costs.related to shear forming have been published over the past two decades, however, important remaining questionsResearch have findings still to berelated answered to shear, with forming this paper have addressing been published one such over gap the associated past two with decades, the material however, deformation important mechanism remaining. questionsSeveral studies have stillhave to demonstrated be answered , thewith impact this paper of key addressing process variablesone such ongap the associated final geometry with the and material surface deformation roughness, mechanismsuch as the. feeds,Several roller studies nose have radius demonstrated and mandrel/roller the impact offset of key. Althoughprocess variables the material on the outputs final geometryare essential and, surfaceas they roughness,link directly such with as the feeds,mechanical roller properties nose radius of theand final mandrel/roller components, offset the .microstructure Although the and material texture outputs of the materialare essential after ,shear as they forming link directlyhave rarely with been the mechanicalstudied. Achieving properties a greaterof the finalunderstanding components, in thisthe microstructurearea could reduce and the texture reliance of the upon material mechanical after shear testing forming to validate have rarelythe process been sandtudied. ease theAchieving exploitation a greater route understanding of the technology in this into area advanced could reduce aerospace the relianceapplications. upon mechanical testing to validate the process andFirst easely the, this exploitation paper presents route the of printhe cipletechnology of shear into formi advancedng and itsaerospace related terminologyapplications.. Then, a brief overview of the shear forming processFirst lyincluding, this paper its presentshistory and the prinoriginciple is givenof shear. The formi areasng and of focusits related are a terminology selection of. theThen, main a brief variables overview encountered of the shear within forming this process includingwhich could its historyimpact andthe finalorigin properties. is given. TheThe areasgeneration of focus of localare a stressesselection due of theto deviationsmain variables from encounteredthe sine law, within the angle this processvariations, which and couldforces impactrequired the during final properties.the forming Theoperation generation are also of localconsidered. stresses This due isto explored deviations in fromthe context the sine of law,forming the angle304L variations,stainless steel and plate forcess. required during the forming operation are also considered. This is explored in the context of forming 304L stainless steel plates. * Corresponding author. E-mail address: [email protected] * Corresponding author. E-mail address: [email protected] 1877-7058 © 2017 The Authors. Published by Elsevier Ltd. Peer-review under responsibility of the scientific committee of the International Conference on the Technology of 1877-7058 © 2017 The Authors. Published by Elsevier Ltd. Plasticity. Peer-review under responsibility of the scientific committee of the International Conference on the Technology of Plasticity. 1877-7058 © 2017 The Authors. Published by Elsevier Ltd. Peer-review under responsibility of the scientific committee of the International Conference on the Technology of Plasticity. 10.1016/j.proeng.2017.10.928 10.1016/j.proeng.2017.10.928 1877-7058 17202 M. GuillotM. Guillot et al. /et Procedia al. / Procedia Engineering Engineering 00 (201 2077) (2017)000–000 1719 –1724 2 M. Guillot et al. / Procedia Engineering 00 (2017) 000–000 This paper is written based upon experiments which observed a 52% thickness reduction using one roller. Scanning Electron MicroscopyThis paper (SEM), is written Elect basedron BackScatter upon experiments Diffraction which (EBSD) observed and ahardness 52% thickness testing reductionwere utilised using to onecharacterise roller. Scanning the shear Electron formed Microscopymaterial. The (SEM), initial Elect heterogeneousron BackScatter microstructure Diffraction with (EBSD) relatively and hardnessequiaxed testinggrains wereevolved utilised into ato microstructure characterise the with shear elongated formed material.grains along The with initial shear heterogeneous bands. A microstructuretexture analysis with revealed relatively a simple equiaxed shear grains mechanism evolved ofinto deformation a microstructure, and thewithoretical elongated and grainsexperimental along shearwith sshear were bands.found to Amatch. texture analysis revealed a simple shear mechanism of deformation, and theoretical and experimentalIdentifying shear the mechanisms were found of todeformation match. was the first step to a better understanding of the effect imparted by the shear forming processIdentifying on the thematerial. mechanism Further of deformationstudies will look was theat the first impact step to of a the better key understanding process variables of the on effect both theimparted microstructure by the shear and forming texture processas well ason heat the material.treatment Furtheroptimisation. studies will look at the impact of the key process variables on both the microstructure and texture as well as heat treatment optimisation. © 2017 The Authors. Published by Elsevier Ltd. © 2017 The Authors. Published by Elsevier Ltd. ©Peer 201-review7 The underAuthors. responsibility Published by of Elsevier Ltd. Peer-review under responsibility of thethe scientific scientific committee committee of the International of the International Conference Conferenceon the Technology on the of TechnologyPlasticity. of PeerPlasticity-review. under responsibility of the scientific committee of the International Conference on the Technology of PlasticityKeywords: incremental. forming; shear forming; stainless steel; simple shear. Keywords: incremental forming; shear forming; stainless steel; simple shear. 1. Introduction 1. Introduction Shear forming is also known as flow forming, shear spinning, shear turning, power spinning, or spin forging. It is an iShearncremental forming cold is formingalso known process as flow which forming, manufactures shear spinning, rotationally shear symmetrical turning, power conical, spinning concave,, or spin or convex forging hollow. It is anprofile incrementald engineering cold forming components process. M whichinimal manufactureswaste and a dimens rotationallyional accuracy symmetrical similar conical, to that concave, of machined or convex components hollow profileare obtainedd engineering using today’s components CNC .flow Minimal formers waste. Shear and a forming dimens ionalshould accuracy not be similarmistaken to forthat conventional of machined componentsspinning, as arethe obtainedlatter combines using today’s tension CNC and compressionflow formers .of Shear the material forming without should intentionalnot be mistaken thickness for conventional reduction of spinningthe starting, as theblank. latter C onversely,combines tensionshear forming and compression involves only of the compression
Load more

Recommended publications
  • Production Methods and Costs of Oxygen Free Copper Canisters for Nuclear Waste Disposal
    t f 7A fc. £" 4" 'rt'U 0 ^5 £ FI9700016 POSIVA-96-08 Production methods and costs of oxygen free copper canisters for nuclear waste disposal Harri Aalto Hannu Rajainmaki Lenni Laakso October 1 996 POSIVA OY Annankatu 42 D. FIN-OO1OO HELSINKI, FINLAND 2 8 Ml 0 6 Phone (09) 228 030 (nat.). ( + 358-9-) 228 030 (int.) Fax (09) 2280 3719 (nat.). ( + 358-9-) 2280 3719 (int.) ti - POSiVa report Raportintunnus- Report code POSIVA-96-08 Annankatu 42 D, FIN-00100 HELSINKI, FINLAND Juikaisuaika- Date Puh. (09) 2280 30 - Int. Tel. +358 9 2280 30 November 1996 Tekija(t) - Author(s) Toimeksiantaja(t) - Commissioned by Harri Aalto, Hannu Rajainmaki, Posiva Oy Lenni Laakso, Outokumpu Poricopper Oy Nimeke - Title PRODUCTION METHODS AND COSTS OF OXYGEN FREE COPPER CANISTER FOR NUCLEAR WASTE DISPOSAL Tiivistelma - Abstract The fabrication technology and costs of various manufacturing alternatives to make large copper canisters for disposal of spent nuclear fuel from reactors of Teollisuuden Voima Oy (TVO) and Imatran Voima Oy (IVO) are discussed. The canister design is based on the Posiva's concept where solid insert structure is surrounded by the copper mantle. During recent years Outokumpu Copper Products and Posiva have continued their work on development of the copper canisters. Outokumpu Copper Products has also increased capability to manufacture these canisters. In this study the most potential manufacturing methods and their costs are discussed. The cost estimates are based on the assumption that Outokumpu will supply complete copper mantles. At the moment there are at least two commercially available production methods for copper cylinder manufacturing.
    [Show full text]
  • Sheet Metalworking Operations Overview of Metal Forming
    SHEET METALWORKING OPERATIONS OVERVIEW OF METAL FORMING Surface Area / Volume is small Surface Area / Volume is large Drawing Deffinition : It is a sheet metal forming to make cup-shaped, box-shaped, or other complex-curved, hollow-shaped parts . Sheet metal blank is positioned over die cavity and then punch pushes metal into opening . Products: beverage cans, ammunition shells, automobile body panels . Also known as deep drawing (to distinguish it from wire and bar drawing) Drawing Figure 20.19 (a) Drawing of cup-shaped part: (1) before punch contacts work, (2) near end of stroke; (b) workpart: (1) starting blank, (2) drawn part. Other Sheet Metal Forming on Presses Other sheet metal forming operations performed on conventional presses . Operations performed with metal tooling . Operations performed with flexible rubber tooling Ironing . Makes wall thickness of cylindrical cup more uniform Figure 20.25 Ironing to achieve more uniform wall thickness in a drawn cup: (1) start of process; (2) during process. Note thinning and elongation of walls. Embossing Creates indentations in sheet, such as raised (or indented) lettering or strengthening ribs Figure 20.26 Embossing: (a) cross-section of punch and die configuration during pressing; (b) finished part with embossed ribs. Embossing . Embossing is a sheet metal forming operation related to deep drawing. Embossing is typically used to indent the metal with a design or writing. This manufacturing process has been compared to coining. Unlike coining, embossing uses matching male and female die and the impression will affect both sides of the sheet metal. Guerin Process Figure 20.28 Guerin process: (1) before and (2) after.
    [Show full text]
  • The Conventional Spinning and Flow Forming Essam K
    International Journal of Academic Engineering Research (IJAER) ISSN: 2643-9085 Vol. 3 Issue 6, June – 2019, Pages: 12-24 The Conventional Spinning and Flow Forming Essam K. Saied; Ayman A. Abd-Eltwab; M. N. El-sheikh Department of Mechanical Engineering Beni-Suef University Beni-Suef, EGYPT S. Z. El-Abden; M. Abdel-Rahman Department of Mechanical Engineering Minia University Minia, EGYPT Ibrahim M. Hassab-Allah Department of Mechanical Engineering Assiut University Assiut, EGYPT Abstract: The thin wall cup products are largely used in industries, it is usually made by a conventional spinning process to produce the cup shape, followed by wall thickness reduction process (Flow Forming) to reduce the cup wall thickness. There is no one process can perform a thin wall cup in one stroke. The deep drawing process with ironing at the same stroke is now being investigated in some literatures, but it still cannot reduce the wall thickness up to 50 or 70%. This article is aiming to investigate the conventional spinning process and the flow forming process; how these two processes conducted and the development in the two processes. A review of the two processes is included in this article. After that; suggestions for future work in the two processes and to conduct the two processes together are prescribed. Keywords—Conventional spinning, Flow forming, Thin wall cup 1. INTRODUCTION Production process is mainly a compound activity, concerned with people who have a broad number of disciplines and skills and a widespread kind of equipment, tools, and utensils with several levels of computerization, such as CPUs, robots, and other equipment.
    [Show full text]
  • 6. Metal Spinning, Flow Turning & Flow Forming
    ME5603 Metal Forming Technology METAL SPINNING, FLOW TURNING & FLOW FORMING By: A/P Lee Kim Seng METAL SPINNING, FLOW TURNING & FLOW FORMING Flow turning or spinning is the plastic deformation of metal to the shape of a rotating mandrel with forces applied by a tool or roller. A/P Lee Kim Seng METAL SPINNING, FLOW TURNING & FLOW FORMING (Cont..) It is an efficient and economical way of producing radial symmetrical parts such as cones, hemisphere and cylinders etc. A/P Lee Kim Seng A/P Lee Kim Seng A/P Lee Kim Seng Tools Used in Metal Spinning, Flow Turning & Flow Forming A/P Lee Kim Seng Metal Spinning, Flow Turning & Flow Forming Processes in action A/P Lee Kim Seng A/P Lee Kim Seng A/P Lee Kim Seng In conventional metal spinning, a flat blank or preform is formed into another rotationallyrotationally symmetricalsymmetrical shapeshape with the aid of a stick tool or spinning roller. Each element in the blank undergoes appreciable radial displacement from its original position whereas the change in the thickness is virtually zero. A/P Lee Kim Seng A/P Lee Kim Seng Flow turning (sometimes known as power spinning, shear spinning, shear forming, spin forging and hydro spinning), resembles conventional spinning, in that a flat disc is transformed into final shape by localized plastic deformation between a mandrel and a roller. However, during flow turning, each element in the blank retains its radial position. A/P Lee Kim Seng The final wall thickness of the component is given by α tf = to sin o For preformed cone sin α t = t o f 1 sin β β (t1 = to sin ) A/P Lee Kim Seng The pre-requisite for flow turning is axial symmetry, thus allall conicconic sectionssections can be formed provided a mandrel is made for the required section and the roller can be made to describe the required profile.
    [Show full text]
  • Benteler Ditribution
    Delivery program Carbon steel and stainless steel tubes in a wide range of qualities and dimensions Distribution Our value proposition The reliable supply of high-quality steel tubes and customized service solutions is the promise we make to our customers in more than 30 countries 1 Our value proposition Benteler Distribution is one of the leading international operating stockholding and processing companies of high-quality carbon and stainless steel tubes and fittings. You can benefit from our comprehensive knowledge of materials, state-of-the-art processing methods, and individual services. We offer competent consultancy, bundling of procurement volumes, as well as customized stocking and logistics solutions, and we can extensively support you in developing new or improving existing products and processes. We commit ourselves to national and international quality standards, and we can serve you at more than 50 locations in over 30 countries with the same high level of quality, all having attained ISO 9001 approval. Technical progress The intensive dialog with our customers combined with our extensive expertise in the design and manufacture of steel tubes and components available in the Benteler Group, enable us to foresee future developments at an early stage, and to react in a timely manner to them by developing solutions for the changing requirements. 2 Processing Pre-finished products up to ready-to-install components We can take over complete production stages in order to make your production more efficient. We have the expertise,
    [Show full text]
  • The Forming Potential of Stainless Steel
    The Forming Potential of Stainless Steel Materials and Applications Series, Volume 8 THE FORMING POTENTIAL OF STAINLESS STEEL Euro Inox Euro Inox is the European market development associ- Full members ation for stainless steel. Acerinox www.acerinox.es Members of Euro Inox include: Outokumpu • European stainless steel producers www.outokumpu.com • national stainless steel development associations ThyssenKrupp Acciai Speciali Terni • development associations of the alloying element www.acciaiterni.it industries ThyssenKrupp Nirosta www.nirosta.de The prime objectives of Euro Inox are to create aware- ness of the unique properties of stainless steel and to UGINE & ALZ Belgium UGINE & ALZ France further its use in existing applications and in new mar- Groupe Arcelor kets. To achieve these objectives, Euro Inox organises www.ugine-alz.com conferences and seminars, issues guidance in printed and electronic form to enable architects, designers, Associate members specifiers, fabricators and end users to become more Acroni familiar with the material. Euro Inox also supports www.acroni.si technical and market research. British Stainless Steel Association (BSSA) www.bssa.org.uk Copyright notice Cedinox This work is subject to copyright. Euro Inox reserves all rights of www.cedinox.es translation in any language, reprinting, re-use of illustrations, recitation and broadcasting. No part of this publication may be Centro Inox www.centroinox.it reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or Informationsstelle Edelstahl Rostfrei otherwise, without the prior written permission of the copyright www.edelstahl-rostfrei.de owner, Euro-Inox, Luxembourg. Violations may be subject to legal Institut de Développement de l’Inox proceedings, involving monetary damages as well as compensation (I.D.-Inox) www.idinox.com for costs and legal fees, under Luxemburg copyright law and regula- tions within the European Union.
    [Show full text]
  • Optimization of Shear Spinning Parameters for Production of Seamless Rocket Motor Tube by Taguchi Method
    IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-ISSN: 2278-1684,p-ISSN: 2320-334X PP. 61-70 www.iosrjournals.org Optimization of Shear Spinning Parameters for Production of Seamless Rocket Motor Tube by Taguchi Method Dr. C. S. Krishna Prasada Rao1, J. N. Malleswara Rao2 M. Pradmod Kumar Reddy3, M. Revanth Kumar4 1(Dean and Professor, Dept. of Mechanical Engg, Bharat Inst of Engg & Tech, Hyderabad,Telangana, India) 2(Assoc Professor, Dept of Mech Engg, Bharat Inst of Engg & Tech, Hyderabad, Email: [email protected]) 3(B. Tech. Student, Dept. of Mechanical Engg, Bharat Inst of Engg & Tech, Hyderabad,Telangana, India) 4(B. Tech. Student, Dept. of Mechanical Engg, Bharat Inst of Engg & Tech, Hyderabad,Telangana, India) Abstract: The thin walled seamless, high precision tubes are produced by progressive, continuous localized deformation (shear spinning).. The present experimental work, “Optimization of Shear Spinning Parameters and Production of Seamless Rocket Motor Tube by Taguchi Method”, is performed at B D L, Hyderabad, on flow forming machine. Rocket motor tube is used as a pressure vessel in various missiles. It encases propellant and plays a vital role in missile thrust technology. The tube is supposed to withstand high temperature and pressure and should have high mechanical properties. The aim of present research is to establish optimum process parameters like roller radius, stagger, hardness and feed to produce precise mean diameter in reverse shear spinning rocket motor tube for pressure vessel application in aerospace engineering and missile technology with minimum cost of experimentation by Taguchi method. The material chosen for study is SAE 4130 Steel.
    [Show full text]
  • John Hiuhu Shear Spinning of Nickelbased Super Alloys and Stainless Steel
    DEGREE PROJECT FOR DEGREE OF MASTER OF SCIENCE (60 CREDITS) WITH A MAJOR IN MECHANICAL ENGINEERING DEPARTMENT OF ENGINEERING SCIENCE UNIVERSITY WEST, SWEDEN Shear spinning of nickelbased super alloys and stainless steel. John Hiuhu i Degree Project for Master of Science with a major in Mechanical Engineering Shear spinning of super alloys and stainless steel Degree Project Shear spinning of super alloys and stainless steel 1 Degree Project for Master of Science with a major in Mechanical Engineering Shear spinning of super alloys and stainless steel Preface This thesis was facilitated by GKN Aerospace while my studies in Sweden were sponsored by Swedish Institute. Special thanks to my supervisors Fredrik Niklasson and Mats Larsson and the teaching staff in University West whose guidance and supervision was priceless. The spinning was done at Hermanders AB while the rest of the experiments were done at University West and GKN Aerospace. 2 Degree Project for Master of Science with a major in Mechanical Engineering Shear spinning of super alloys and stainless steel Contents Shear spinning of Nickel based super alloys and stainless steel. ..... Error! Bookmark not defined. Preface .................................................................................................................................................2 Affirmation.........................................................................................................................................4 Summary .............................................................................................................................................5
    [Show full text]
  • Microstructural and Mechanical Characterization of Shear Formed Aluminum Alloys for Airframe and Space Applications
    For rapid communication: Tel: (757) 864-3175 FAX: (757) 864-7893 E-mail: [email protected] Microstructural and Mechanical Characterization of Shear Formed Aluminum Alloys for Airframe and Space Applications L.P. Troeger1, M.S. Domack2, and J.A. Wagner2 1 NRC/NASA Langley Research Center, Mail Stop 188A, Hampton, VA 23681 2 NASA Langley Research Center, Mail Stop 188A, Hampton, VA 23681 Keywords: Shear forming, roll forming, aluminum alloys, microstructure, texture. Abstract Advanced manufacturing processes such as near-net-shape forming can reduce production costs and increase the reliability of launch vehicle and airframe structural components through the reduction of material scrap and part count and the minimization of joints. The current research is an investigation of the processing-microstructure-property relationship for shear formed cylinders of the Al-Cu-Li-Mg-Ag alloy 2195 for space applications and the Al-Cu-Mg-Ag alloy C415 for airframe applications. Cylinders which have undergone various amounts of shear-forming strain have been studied to assess the microstructure and mechanical properties developed during and after shear forming. Introduction Near-net-shape manufacturing technologies represent attractive alternatives to traditional machining methods for airframe and launch vehicle structures [1]. The advantages of near-net-shape manufacturing include a reduction in the amount of material scrap in the form of machining chips and the elimination of thick-plate microstructures, which results in improved mechanical properties. Shear forming, also known as roll forming, is a near-net-shape manufacturing technique in which seamless cylindrical structures are produced by reducing the wall thickness and extending the length of ring-shaped preforms [2-3].
    [Show full text]
  • Seamless Cavities: the Most Creative Topic in Rf Superconductivity
    Particle Accelerators, Vol. 61, pp. [479-519]/215-255 © 1998 OPA (Overseas Publishers Association) N.V. Reprints available directly from the publisher Published by license under Photocopying permitted by license only the Gordon and Breach Science Publishers imprint. Printed in India. SEAMLESS CAVITIES: THE MOST CREATIVE TOPIC IN RF SUPERCONDUCTIVITY v. PALMIERI* Laboratori Nazionali di Legnaro, Istituto Nazionale Di Fisica Nucleare, Via Romea, 4, 35020, Legnaro (Padua), Italy (Received in final form 16 July 1998) In the RF superconductivity field, the technology of seamless cavities is, among all other topics, perhaps the one that mostly requires a creative approach. More than elsewhere, this is the right place where researchers can give free rein to their imagination. The R&D on seamless multicell cavity is pushed forward in order to face the problem of a possible mass production at lower costs than those resulting from the traditional approach. After an outline of the basic mechanism under plastic deformations, several approaches to the problem are reviewed. Potentialities, advantages, and disadvantages of hydroforming, explosive forming, electroforming, and spinning are reported and compared. From a critical analysis of the current status of the art, the need for seamless tube fabrication appears compulsory. Even if there is a long way to go, there are research groups that lead the way, just by simply applying to cavities the already existing forming technolo­ gies. The reader will immediately realize that the problem of a low cost mass production is a difficult task, but at the same time definitely possible to solve. Keywords: Seamless cavities; RF superconductivity; Niobium; Cold-forming; Hydroforming; Explosive forming; Spinning; Deep-drawing; Extrusion; Flowturning 1.
    [Show full text]
  • Analysis of Material Deformation and Wrinkling Failure in Conventional Metal Spinning Process
    Durham E-Theses Analysis of Material Deformation and Wrinkling Failure in Conventional Metal Spinning Process WANG, LIN How to cite: WANG, LIN (2012) Analysis of Material Deformation and Wrinkling Failure in Conventional Metal Spinning Process, Durham theses, Durham University. Available at Durham E-Theses Online: http://etheses.dur.ac.uk/3537/ Use policy The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that: • a full bibliographic reference is made to the original source • a link is made to the metadata record in Durham E-Theses • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders. Please consult the full Durham E-Theses policy for further details. Academic Support Oce, Durham University, University Oce, Old Elvet, Durham DH1 3HP e-mail: [email protected] Tel: +44 0191 334 6107 http://etheses.dur.ac.uk 2 Analysis of Material Deformation and Wrinkling Failure in Conventional Metal Spinning Process Lin Wang Doctor of Philosophy School of Engineering and Computing Sciences Durham University 2012 Analysis of Material Deformation and Wrinkling Failure in Conventional Metal Spinning Process Lin Wang Abstract Sheet metal spinning is one of the metal forming processes, where a flat metal blank is rotated at a high speed and formed into an axisymmetric part by a roller which gradually forces the blank onto a mandrel, bearing the final shape of the spun part.
    [Show full text]
  • Metal Forming by Sheet Metal Spinning Enhancement of Mechanical Properties and Parameter of Metal Spinning
    © 2014 IJEDR | Volume 2, Issue 2 | ISSN: 2321-9939 Metal Forming By Sheet Metal Spinning Enhancement of Mechanical Properties and Parameter of Metal Spinning 1Mahesh shinde, 2Suresh Jadhav, 3Kailas Gurav 1PG Scholar, 2Assistant Professor 3M.E Design 1,2Department of Mechanical Engineering, VeermataJijabai Technological Institute,Mumbai, Maharashtra, India-400019 [email protected], [email protected] ,[email protected] ________________________________________________________________________________________________________ Abstract - Sheet metal spinning is one of the metal forming processes, where a flat metal blank is rotated at a high speed and formed into an axisymmetric part by a roller which gradually forces the blank onto a mandrel, bearing the final shape of the spun part. The result of the process depends on the parameter and their interdependence. The parameter in the metal spinning are workpiece parameter, tooling parameter and process parameter, with the help of these three parameter improve the mechanical property andquality of product. The spinning process also enables components to be produced with both improve mechanical properties of almost 2 to 2.5 times their value in the raw material condition as well as with high dimensional accuracies and surface finishes. such components mostly find application in the air craft and missile industries which require a high strength to low weight ratio for their component. Keywords - Type of Metal Spinning, Spinning Process, Workpiece Parameter, Tooling Parameter,
    [Show full text]