International Newsletter For Shot Peening-Surface .
TSSN 1069-2010December 2000International Newsletter for Shot Peening-Surface Finishing IndustryColorado Springs, Colorado was the siteof our 10th annual shot peening and blast cleaning workshop and trade show. We welcomed 167attendees from 16 countries. Thirteen industryleaders in shot peening and blast cleaning hadbooths at the trade show.Jack Champaigne, president ofElectronics Inc., organized the first shot peeningworkshop in 1990 as a way to improve qualitycontrol in shot peening. "Every year the workshop attendees are more qualified and ask betterquestions in the classes," says Jack. "I see shotpeening gaining credibility as a vital procedurein many industries," he added.Over the three-day workshop, participantscould choose from over 50 classes in four basiccategories including Shot Peening, BlastCleaning, Turbine1 Wheel Machinesand Air Blast Machines.Volume 14, Issue 4Almen gage practice and the Level I, II, and111 shot peening exams were held on the last day ofthe workshop. Fifty-four students took the Level Iexam, four took Level II and two took Level 111.We've included a list of attendees andinstructors in this newsletter plus lots of photos.More photos are at our web site: wwwshotpeener.corn. The photos give the big picture-the workshop is a great opportunity to learn and socializewith people from around the world that share yourinterest in shot peening and blast cleaning.Thank you to everyone who joined us thisyear; your participation enriched the experience forus all! If you haven't been to a workshop; makeplans to join us in 2001. Information on Workshop2001 will be at the web site soon. 0--- - -- -- - --/,'------- - - - -
A Salute to Our 2000 WorkshopAttendees and InstructorsA & A DRY STRIP INC.David Jung RothC.P. TECH. INC.Drazen GalovicAPROWilliam MartinCATAPHOTE INC.Ken DraycottJuanita GriffinTom ReyABLE ENGINEERINGYuri HoversonAIR NEW ZEALANDAaron CossarBrendon McWilliamAMERICAN ARLTNESDavid WilsonDick LondonJeff MullerSonny EnnisARVLN MERITORBrian IrwinJohn SneddonJules StaalRodger MorrisonAUTOMATIC SPRINGconrNGMichael LidmanNick ConneallyAVCORP INDUSTRIESDouglas SmithBFGOODRICH AEROSPACEJonnie HamiltonMark ClearyBLOUNT LNC.Alex C. PohoataBOEINGJohn CookHali DiepLynne HamiltonDonnica HammonsPhilip LeithTroy MartinezBOMBARDlER INC.Denis HamelJ.F. AquinLuc GuerinCHROMALLOY DALLASBrent T. GrelleCONSOLIDATED METCODavid MeltonCORPUS CHRISTI ARMYDEPOTCynthia GarzaKenneth LacourDAWSON - MACDONALDFrank ,J. DancaMark HannaDELTAButch CummingsCody IvesJohn RiggleJonathan ClarkeKeith HaganLee BoxIRIVES WC.Dave Law ADSAIRBUSAndreas Kielies%ATONCORPORATIONDwight SmithHal GlassPhilip AyersTerry GriggTony Ballain3ATON TRUCK COMP.Arkadiusz RogalewskiJMBRAERAlexandre HyodoAugusto Cesar CarretoniCleber Vasquez DeMesquitaLiaw Dick DjoesmanThe Shot PeenerEMPIRE ABRASIVEEQUIPMENTJim McLaughlinRobert B. HeatonENGINEERED ABRASIVESBrent SlezakDoug FellmanEd RichermeMark OlaldeEQUIPOS DE ABRASIONPARAJesus De La GarzaERICKSON AIR-CRANERonald 0. LarsonFrank R. MarlowFAABob TiptonGary .J. KnaggsJerry L. McCormackJude SellersMichael AlquistTom BurkeWillard A. HarperRichard L. MerrillFAA (AMR-CMO)Terry E. HighFAA AMR CMO POWERPLANTKarl W. YoungG. E. AIRCRAFT ENGINESLarry MilbrandtG. E. MTCReha HaymanaliG. E. POLANDKrzysztof PolomskiHOWMET CORPJack CockerillIDS BLAST FINISHINGErin KnaussIEMANTSLuc QuyrijnenINDUSTRIAL DE TURBOAna Millan ReizabalJORDAN AIRMOTIVE LTD.Ayman Al-karmiHussain AsfanMASCOTECH FORMINGDennis PelkeyGerald JollyEdmond IliaMERITOR AUTOMOTIVEKevin UalyN.M.F. CANADAMarc SullivanNelio SuffrardNorman TanguayPhilippe RicherNASCOBlake HallNCI INC.Wayne MaltryNAVAL AVIATION DEPOTSteven PeschkeTheresa DowningVORBLASTDevis GuidettiFrancesco NorelliGODFREY & WINGChris GilmoreEd BasticTom Gordon3KLAHOMA CITYLOGISTICSDavid L. PainterFritz WestGeorge BaxterHILLERICH & BRADSBYDave LengyelTom Benson'ETERSON SPRINGMike MannSimon JaroszewiczVolume 14, Issue 4
POMETON S.P.AGiovanni GregoratPRIDE PLATING INC.Scott Lucasj U.S.A.F. HTLL AIRFORCEEzekiel SmithPROGRESSIVETECHNOLOGIESDoug PoortengaKevin YoungUS AIRWAYSAndy StedmanDale FulmerJohn D'amicoKevin MayerMike AterRichard ScottPROTECH SERVICESAshok LaljibhaiUSFIBCP WHEELABRKTORKevin PolingPT. NUSANTARA TURBINDANAgus Supriyono PatelIrfanUNITED AIRLINESCarol EdenRodney L. LeePhil AustinR & L SPRINGJohn ArmsteadTom DeckerUNITED DEFENSEElliott TurbevilleWadous BoatwrightRAPIDS TUMBLE FINISHLoren CowlesRichard VanderniolenVAPORMATT INC.Tom FauttSEPR GROUPJeff GirmanSANDSTROM EQUIPMENTV.R. MuralidharanSERMATECH-LEHRCraig ChamberlainDave LambSHEN YANG LIMINGENGINEYang QingZhou YangSOUTHWEST UNITEDJeff LewisSTANDEN'S LIMITEDSimon FengSURFACE AUTOMATIONSYSTEMSArlyn WestrateKen DykstraSURFACE DYNAMICS 1,TD.Paul HuytonTACOMA COMPANYKelly TacomaMichael TacomaJerry Sheyka, President of EMI, k c . , leads n class in Wheel BlastMachines Rebuilding.VISTEON AUTOMOTIVESean SteinmanHumberto Gonzales PenaLuis Roberto Porter RoblesRogelio Gonzalez AlvarezPete BaileyElectronics IncorporatedKen I'AnsonProgressive TechnologiesVOIYO AERO NORGE ASWerner Voldby LaursenBill BarkerProgressive TechnologiesMark IngramElectronics IncorporatedTom BrierePangborn CorporationDwight LutskoJet Wheelblast EquipmentDr. John CammettNaval Aviation DepotCharlie MasonBF Goodrich Landing GearJack ChampaigneElectronics IncorporatedLarry Popews 5 1 e rDave CooperBlastworksGreg RabelMidwestern IndustriesDan DickeyInnovative PeeningSystemsJerry SheykaEMI, Inc.VOUGHT AIRCRAETINDUSTRIESDale FryJasbir MalhotraRiley MaloneWR-ALCILCPDJimmy StylesJimmy TrippWilliam BurkeWilliam WalkerNHEELABRATORJim GaertnerMaureen JabaleyRon BarrierDan DivertyUSFIBCP WheelabratorCanada(1' AN AERO-ENGINEGROUP)Bob GillespiePremier Shot CompanyHe JinPeng LuWu JiangThe Shot PeenerTom GordonElectronics IncorporatedVolume 14, Issue 4Gene TarabekTarabek Inc.Herb TobbenClemcoIZero ProductsJim WhalenProgessive Technologies
Trade SBaiker AGBlastworks Inc.BorideElectronics lnc.Engineered AbrasivesErvin IndustriesInnovative Peening SystemsPangborn CorporationPremier Shot CompanyThank you to our exhibitors-eiThe Shot PeenerProgressive TechnologiesSurface Automation SystemsUSF Surface PreparationW S TylerVolume 14, lssoe 4
The Shot PeenerVolume 14, Issue 4
nWorkshop 2000The Shot PeenerVolume 14, issue 4
T h e Shot PeenerVolume 14, issue 4
Boride Electronics lnc. Engineered Abrasives Ervin Industries Innovative Peening Systems Pangborn Corporation Premier Shot Company Progressive Technologies Surface Automation Sy
Fig. 1 & 2: laser peening (left) and shot peening (right) basic concepts 1-Effects of Laser Peening and Shot Peening on material The effects of laser peening and shot peening on the processed material can be grouped in three categories: Redistribution of residual stresses Surface topography modification Cold work 1-1 Residual stress
Jan 18, 2001 · H:\Docs\Training\SPO_01_18_2001 REVISED.wpd 3of37 1. INTRODUCTION 1.1 Shot Peening Described Shot peening is a cold working process in which the surface of a part is bombarded with small spherical media called shot. Each piece of shot striking the material acts as a tiny peening hammer, imparting to the surface a small indentation or dimple.
shot peening. It is seen that the area fraction and thickness of the nanocrystalline layer increased with peening time. In the Fig. 3 SEM micrographs of Fe-0.05C-1.29Mn high tensile strength steel after shot peened for 10s. (a) as shot peened and (b) annealed at 873K for 3.6ks after shot peening.
Table 2 gives the parameters used for shot peening the dog bone samples. Shot peening was done using a Westward blast cabinet equipment with a pressure regulator. To produce consistent results, the jig in Fig. 9 was used to secure the sample. Fig. 8 Pseduo-Almen strip deflection after shot peening. ABS 1.75 mm filament X Y Z
using fine shot peening. These rollers are herein denoted as SP rollers. The sur-face roughness was varied by approximately 0.2 to 2.1 using shot peening. The test roller without shot peening was also conducted for comparison. These roll-ers are herein denotedas NP rollers. The surface roughness of the non-peened
Shock wave Fig.1 Schematic of laser peening Fig. 2 Comparison of residual stress profiles in each condition Table2 Laser peening parameters the compressive residual stress layer built by laser peening is deeper than that of shot peening(3). (2) Material Some aluminum forgings have been used in numerous fatigue critical parts of aircrafts with
The net result of shot peening is often a noticeable improvement in fatigue properties (Ref. 5). Shot peening under a prestress can produce an even higher level of compressive stresses (Ref. 3). Laser-shock peening (LSP) was first used by Battelle Columbus Laboratories in 1974 (Ref. 6). In this process, the
Cast steel shot, commonly used for shot peening, is available in different degrees of hardness and the selection of shot hardness depends on the hardness of the material being peened. The regular hardness shot, usually 47-48 Kc, is suitable for peening mate- rials with a hardness below 50 Rc. However, when
