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Revealing Internal Flow Behaviour in Arc Welding and Additive
ARTICLE https://doi.org/10.1038/s41467-018-07900-9 OPEN Revealing internal flow behaviour in arc welding and additive manufacturing of metals Lee Aucott 1, Hongbiao Dong 2, Wajira Mirihanage3, Robert Atwood 4, Anton Kidess5,10, Shian Gao2, Shuwen Wen6,11, John Marsden6, Shuo Feng2, Mingming Tong7,12, Thomas Connolley 4, Michael Drakopoulos4, Chris R. Kleijn5, Ian M. Richardson8, David J. Browne7, Ragnvald H. Mathiesen9 & Helen.V. Atkinson2,13 1234567890():,; Internal flow behaviour during melt-pool-based metal manufacturing remains unclear and hinders progression to process optimisation. In this contribution, we present direct time- resolved imaging of melt pool flow dynamics from a high-energy synchrotron radiation experiment. We track internal flow streams during arc welding of steel and measure instantaneous flow velocities ranging from 0.1 m s−1 to 0.5 m s−1. When the temperature- dependent surface tension coefficient is negative, bulk turbulence is the main flow mechanism and the critical velocity for surface turbulence is below the limits identified in previous theoretical studies. When the alloy exhibits a positive temperature-dependent surface tension coefficient, surface turbulence occurs and derisory oxides can be entrapped within the subsequent solid as result of higher flow velocities. The widely used arc welding and the emerging arc additive manufacturing routes can be optimised by controlling internal melt flow through adjusting surface active elements. 1 United Kingdom Atomic Energy Authority, Culham Science Centre, Abingdon, Oxfordshire OX14 3DB, UK. 2 Department of Engineering, University of Leicester, Leicester LE1 7RH, UK. 3 School of Materials, University of Manchester, Manchester M13 9PL, UK. -
United States Court of Appeals for the Eighth Circuit ______
United States Court of Appeals For the Eighth Circuit ___________________________ No. 17-1818 ___________________________ Ian Pollard lllllllllllllllllllllPlaintiff - Appellee v. Remington Arms Company, LLC; Sporting Goods Properties, Inc.; E.I. Du Pont Nemours and Company lllllllllllllllllllllDefendants - Appellees v. Terry Pennington; Rodney Townsend lllllllllllllllllllllObjectors Lewis M. Frost; Richard Denney lllllllllllllllllllllObjectors - Appellants ------------------------------ Commonwealth of Massachusetts; District of Columbia; State of California; State of Hawaii; State of Illinois; State of Maine; State of Maryland; State of New Mexico; State of New York; State of Oregon; State of Pennsylvania; State of Rhode Island; State of Vermont; State of Washington lllllllllllllllllllllAmici on Behalf of Appellant(s) Appellate Case: 17-1818 Page: 1 Date Filed: 07/25/2018 Entry ID: 4685833 State of Alabama; State of Arkansas; State of Louisiana; State of Michigan; State of Missouri; State of Nebraska; State of South Carolina; State of South Dakota; State of Utah; State of West Virginia; State of Wisconsin lllllllllllllllllllllAmici on Behalf of Appellee(s) ____________ Appeal from United States District Court for the Western District of Missouri - Kansas City ____________ Submitted: February 14, 2018 Filed: July 25, 2018 ____________ Before LOKEN, BENTON, and ERICKSON, Circuit Judges. ____________ ERICKSON, Circuit Judge. Ian Pollard and others brought a class action complaint against Remington Arms Company, LLC; Sporting Goods Properties, Inc.; and E.I. Du Pont Nemours and Company (collectively “Remington”), in which they alleged certain Remington rifles were susceptible to unintentional firing without a trigger pull. Among other things, the class members sought to require Remington to repair or replace their firearms. After extensive settlement negotiations, the parties finalized a nationwide settlement. -
Millimeter Wave Linac and Wiggler Structures
MM-Wave Linac and Wiggler Structures H. Henke Technical University Berlin Institut fuer Theoretische Elektrotechnik Einsteinufer 17, EN 2 D- 10587 Berlin Abstract In an international collaboration a new technology is kW RF peak power for 1 mA current. This is a reasonably being developed for a 50 MeV millimeter RF-wavelength low power level for designing new sources, for instance little electron linear accelerator complex for production of coherent sheet beam klystrinos also in planar technology. Then, the tunable synchrotron radiation. The accclcrator components and whole device would fit on a standardlab table. the wiggler are being designed with planar geometries suitable 2.5MeV F MeV for deep X-ray lithography and subsequent electroplating F5o”r:e bUrK’1P”l (LIGA) or for etching and electroplating silicon wafers. The b&c design ideas of different components for bunching, pre- acceleration, acceleration, focussing and the wiggler are presented. hem 1. INTRODUCTION Micromechanic technology has developed a vast range of fabricational methods for devices in the submillimeter range: high precision stamping, diamond lathes, laser cutting, diffusion bonding, lithography and etching of silicon wafers and deep X-ray lithography with subsequent electroplating Fig. 1 Conceptual design of an integrated mm-wave (LIGA [ll). So, the technology is available for studying and ndiaton source (IMIRAS) eventually building high precision accelerator components and struclures for very high RF frcquencics, let us say above 100 The paper presents different RF structures for acceleration GHz. In this context it is of great importance that the relative and pre-acceleration, possible focussing devices and structures dimensional and frequency tolerances increase with tie square for a microwave wiggler. -
Cutting Tools & Metalworking
17–268 Edge Finders, Wiggler Sets, Height Gauges, Surface Gauges, Bore Gauge Sets Edge Finders Surface Gauges Egde Finders Surface Gauges 0962311 0962312 3163164 7059268 7059269 7059270 Part No. Head Diameter Shank Diameter Style Type 0962311 0.500" 1/2" Single End Edge Finder 0962312 0.200" / 0.500" 1/2" Double End Edge Finder 3163164 0.200" 3/8" Single End Edge Finder 7059268 0.200" 3/8" Single End Edge Finder 7059269 0.200" 1/2" Single End Edge Finder 7059270 0.200" 3/8" Single End Edge/Center Finder Wiggler Sets Part No. Spindle Size Base Size Base Material 3163146 4" / 7" 2-3/16" x 1-5/8" Steel 5 Piece Wiggler Set 3163147 12" / 9" 3-1/8" x 2-1/2" Steel • Made from precision ground tool steel • Includes offset indicator holder and improved chuck design for holding Bore Gauge Sets attachments Telescoping Gage Sets • Range: 1/2-6" • Handle length: 2-3/8" except 3-1/4 on the largest • Each with a handle, one rigid contact arm Part No. Contents and one spring tensioned contact arm 0962313 Chuck, (4) Attachments • Hardened and ground radius on ends CUTTING Height Gauges Part No. Range Contents 0324730 1/2" - 6" 5 Piece Set Includes: 5 Telescoping Gauges Electronic Height Gage - T 3752 Series OOLS & METALWORKING • Clear bar graduations in .100" and Telescoping Gage Sets 5mm increments • Automatically self-centering • Carrier and scriber designed to read from zero, set • Has two telescoping contacts ZERO at any position • Constant spring tension gives uniform • Ability to retain and return to true zero reading contact pressure • In/mm conversion • Easily locked at any setting • Ability to assign minimum and maximum limits • RS232 output for data collection, analysis and hard Part No. -
Newsletter Volume 1, Issue 1
February 2010 MiniTech Engineering & Model Supplies Vol 2 No 1 Newsletter Volume 1, Issue 1 It seems that one of the more Well this edition of the popular items that sell well are Newsletter should solve that Job Interview Question books. In searching for new titles little issue once and for all. You are driving along in your car we have come across a supplier Another slightly different on a wild, stormy night. You pass issue deals with a tool that who is willing to send us their by a bus stop, and you see three How to use a many machinists already collection of volumes. Our have. Sitti ng in their shed people waiting for the bus: wiggler freight costs being reduced by “somewhere,” it doesn’t get a making purchases in bulk. jersey because the user 1. An old lady who looks as if she (wobbler) is about to die. doesn’t really know how to We ha ve listed the titles inside. 2. An old friend who once saved put it to work. That could be your life. Steady as she You may be interested to check the case for the ubiquitous them out and try something 3. The perfect man (or) woman goes or the method travelling steady. you have been dreaming about. completely different for your of using a travelling One person’s methodology steady. next project. for putting it to good use is Which one would you choose to also covered in this issue of offer a ride to, knowing that there There are a lot of tools out there Massive list of the Newsletter. -
February 18 Online Auction
09/30/21 04:21:28 February 18 Online Auction Auction Opens: Thu, Feb 13 4:00pm ET Auction Closes: Tue, Feb 18 7:00pm ET Lot Title Lot Title 1 Rustic Looking Old Hutch With One Drawer 101 Antique Primitives A Hand Forged Meat (Hay) and Two Doors, Pencil Sharpener Mounted On Hook With Steel Handle 10"L x 4 1/2"W Side, Would Be Cool If Remodeled, 40"W x Handle and Hand Forge Primitive All Steel 16"D x 54"H, Fair Condition - As-Is Hammer 8"L x 3 1/2"W, Both Very Unique and 10 Very Cool Plaster "Fishing Lure" Picture In Rare Finds 100 Years Old Each of Them, Good Good Condition, 10"Sq Condition 100 Fireplace Iron Log Tongs, All Steel 1010 1899 O Morgan Silver Dollar, Really Nice Construction, Two Large Brass Ends for Looking Coin Handles To Protect Your Hands From Heat, 1011 New Stamped 925 Silver Plated Ring Size 8, Could Also Be Used For Camping, Good Marquise Cut Black Sapphire Black on Black Condition, 23"L Gold Plated, Magnificent! 1000 1880 P Morgan Silver Dollar, Great Looking 1012 Indian Head $5. Half Eagle in 1 Oz. .999 Fine Collectible Coin Copper Copy 1001 New Exquisite Emerald Cut Pink Ice Black 1013 New Size 8 Ring, 925 Stamped Sterling Silver Gold Plated Setting, Extraordinary Beauty, Size Plated, Emerald Cut CZ, Lavish And Gorgeous 9 1014 2010 Canadian Maple Leaf .999 Fine Silver, 1 1002 1893 Carson City Morgan Silver Dollar Troy Oz. Mintage 667,000 Fine Condition, Harder To 1015 New Size 6 Black Gold Filled Ring, Get Key Date, Great Circulated Piece With Extraordinarily Beautiful, Very Unique, Great Eye Appeal, A Real Prize Aquamarine, It Speaks For Itself 1003 New Oval Cut Aquamarine With Iridescent 1016 1904 O Morgan Dollar 90% Silver New Sapphires, Gleaming Black Gold Plated Size 6 Orleans Mint Ring 1017 New Silver Plated Ring Size 8, Princess Cut 1004 1982 Engelhard Prospector 1 Troy Oz. -
Drill Press Operator: Instructor's Guide
DOCUMENT RESUME 2D 109 N77 CE 004 335 AUTHOR Kagan, Alfre d; And Others TITLE -Drill Press Operator: Instructor's Guide. INSTITUTION New York State Education Dept., Albany. Bureau of Continuing Education Curriculum Development.; New York State Education Dept., Albany. Bureau of Secondary,Curriculum Development. PUB DATE 75 NOTE . 85p.; Part of SingleTool Skills Program, Machine Industries Occupations EDRS PPICE MIP-$0.76 HC-$4.43 PLUS POSTAGE DESCRIPTORS Adult Education; *Curriculum Guides; Machine Tool Operators; *Machine Tools; Metal Working Occupations; Post Secondary Education; Secondary Education; Shop Curriculum; *Trade and Industrial Education IDENTIFIERS *Drill Press Operators ABSTRACT The course is intended to kelp meet, in a relatively short time, the need for trained operators in metalworking. It can be used by students with little education or experience and is suitable far use in adult education programs and in manpower development and training progress. The course is designed' to be completed in approximately 30 weeks and can be adapted for use in secondary 'schools. On successful completion of the course the student will be qualified for an entry-level job as operator in a drill press; he will not qualify as a eachinist. The guide includes h general job content outline for the teacher to use in explaining what the operator's job includes. There are Il shop projects (comprising 19 jobs) accompanied by 32 pages of drawings for the projects. Three of the jobs introducb students to the use of metric measurement. For each job there is a job sheet providing details on performance objectives, equipment, operations, materials, references, procedure, techniques, and time required. -
Gun-A-Week Raffle
GUN-A-WEEK RAFFLE Roy Reed Post 252 American Legion and Sons of the American Legion Tickets: $50 a Ticket Only 1500 Tickets Ticket Cost $0.96 To Be Sold Each Ticket Goes Into Every Drawing Per Drawing 1 Ticket Equals 52 Chances to Win 52 Guns 52 Drawings Chance To Win Multiple Guns With One Ticket Wk 1: Winchester 70 Ultimate Shadow Rifle, 7mm-08 Wk27: Smith & Wesson 9mm Carry & Range Kit Wk 2: Browning BPS Hunter Shotgun, 12 Gauge Wk28: Thompson Center Encore .50 Cal Black Powder Wk 3: Weatherby Vanguard S2, 300 Weatherby Magnum Wk29: Thompson Center Venture, 270 Win Short Mag Wk 4: Ruger M77 Hawkeye Bolt Action Rifle .30-06 Wk30: Mossberg Mod 464 Lever Action, 30-30 Winchester Wk 5: Remington®270 Whitetail Pro®Model 770 W/Scope Wk31: Winchester 70 Ultimate Shadow, 7mm-08 Rem. Wk 6: Savage Axis Rifle, 223 Remington/5.56 Nato Wk32: Henery Golden Boy Lever Action .17 cal Wk 7: Colt 1911 12rd 5” Barrel Wk33 Mossberg Model 100 ATR Night Train Bolt Action .308 Wk 8: Mossberg 4X4 Bolt Action Rifle, 243 Winchester Wk34: Henry Lever Action Rifle H001M, 22 Win. Mag Rimfire Wk 9: Stevens 350 Field Grade/Security combo, 12 Gauge Wk35: Browning BPS Hunter Shotgun, 12 Gauge Wk10: Mossberg Trek Bolt Action Rifle, 270 Winchester Wk36: Weatherby Vanguard S2 Rifle, 300 Win Short Mag Wk11: Mossberg Model 500 Wk37: Weatherby Vanguard Synthetic Bolt Action, 300 Wk12: Rossi Rio Grande Rifle, 30-30 Winchester Wk38: Rossi Rifle/Shotgun Combo, 22 Mag/12 Gauge Wk13: Savage Axis Rifle, 223 Remington/5.56 Nato Wk39: Browning BPS Shotgun w/Dura Touch, 10 Gauge Wk14: Mossberg 464 Lever Action, 30-30 Wk40: Remington Model 700 SPS 300 Win. -
Kramer Auction Service LLC 203 E. Blackhawk Ave. Prairie Du Chien, WI 53821
Kramer Auction Service LLC 203 E. Blackhawk Ave. Prairie du Chien, WI 53821 Phone: (608) 326-8108 Fax: 608-326-8987 February 4, 2017 Firearms Auction 2/4/2017 LOT # DESCRIPTION 1 NIB Benjamin Air Pistol 50.00 - 100.00 2 Approx 200 rounds of 30 Carbine Ammo 30.00 - 50.00 3 Approx.150 rounds of 30 cal Luger Ammo 30.00 - 50.00 4 Box lot of Assorted Ammo includes: 500 rds of 22 cal, plus 9mm Makarov, 32 Auto & shotgun ammo. 50.00 - 100.00 5 Remington Race Car Tin of 22 Ammo 50.00 - 75.00 6 6 Boxes of Collectible Shotgun Shells Remington, Winchester, Gambles & others. 75.00 - 150.00 7 3 M1 Garand Bayonets 100.00 - 150.00 8 M1 Carbine Bayonet & Military Knives 75.00 - 150.00 9 Lot of 3 Hunting Knives including: Marbles & Gerber stag handle. 50.00 - 100.00 10 Winchester Pliers & Musket Caps 25.00 - 50.00 11 Nice Winchester 26" Level 50.00 - 100.00 12 Large Box Lot of Assorted Vintage 22 Ammo 100.00 - 200.00 13 Lot of 22 WRF, 22 Auto & 22 Mag Shells 50.00 - 100.00 14 Box lot of Vintage Shotgun Shells includes: Federal Monarch, Winchester Ranger, plus Remington proof loads & US Property box. 50.00 - 150.00 15 Lot of Vintage Winchester & Savage Ammo Winchester 25-35, Savage 250-3000 & Savage 32-20. 100.00 - 200.00 16 Box lot of 22 Short & CB Caps 25.00 - 50.00 Kramer Auction Service LLC Page: 2 February 4, 2017 Firearms Auction 2/4/2017 LOT # DESCRIPTION 17 Box of 25 Stevens Short Rim Fire Ammo 30.00 - 50.00 18 3 boxes of Military Ammo including: Winchester 9mm Sub Machine Gun 75.00 - 150.00 19 2 Vintage Red, Yellow & Blue Remington 30-06 Boxes includes ammo. -
Paul Edward Zukowski 755 Wethersfield Ave B-14 Hartford, Ct
Paul Edward Zukowski 755 Wethersfield Ave B-14 Hartford, Ct. 06114 (860) 944-2966 Feb. 4, 2013 Bipartisan Task Force on Gun Violence Prevention and Children's Safety Dear Members of the Task Force, I waited to submit this until I could see all 4 of the hearing in their entirety before commenting. I did well over 80 man hours research before composing this. I combined that with my real life experience. It did not cite, footnote or add bibliography, but I could have. To be honest, my high school guidance councilor talked me out of taking a typing class, I type with one finger. It would it would have doubled the 5 days it took to type this. If you need a citation or have any questions, I would be to happy to address them. First I should tell you a bit about my background. I have lived in the city of Hartford since 1975. I am a graduate of Eastern Connecticut State University and Trinity College. My degrees are in psychology. I have been in the past licensed by DCYS and DMR to administer medication in facilities with populations under 50. I worked with at risk youths including the mentally ill and with adults with developmental disabilities. I have been licensed real estate agent and licensed mortgage broker. I am a graduate of the Hartford Citizens Police Academy. I am the treasurer of my condominium association. I have owned firearms since age 18. (49 now) I a member of the Windsor Marksman Association {NRA/CMP club more on this later} and competitive shooter with rifles and shotguns since 1998. -
Remington Model 700 Long Action Magazine System Custom
7. Using a torque wrench, torque action bolts to 40 to 45 in-lbs. Remington Model 700 Long Action Magazine System CAUTION Custom Installation Instructions DO NOT EXCEED 45 IN-LBS. OR DAMAGE TO THE TRIGGER GUARD MAY RESULT. The system has been designed to function without modi- fication on most injection molded polymer stocks. DAMAGE DUE TO OVER TORQUING WILL VOID THE WARRANTY 8. Check the position of the magazine in the action as shown in Wood stocks are made to different specifications with Figure 5 below. trigger guard to action distance and angle varying great- ly. In a standard internal magazine bolt action rifle this is • Magazine should be flush with the bolt slide area of the action of little concern. However, with a detachable, magazine to 1/32” (see arrow, below). fed, bolt action rifle the positioning of the trigger guard to the action is critical to function properly. •Magazine should be level with the bolt. Figure 5 The following outlines how to adjust the Remington Model 700 (exc. ADL)Long Action Mag. System to your particular firearm. Do not attempt to install this product on a loaded firearm! SERIOUS INJURY OR DEATH MAY OCCUR ® Detach Mag Install_REM LA.indd 1 8/4/15 4:39 PM CAUTION 1. Measure the front and rear bedding pillars in the stock Do not attempt to install this product on a loaded firearm! Failure to follow these instructions may result in (see “A” and “B” in Figure 1). SERIOUS INJURY OR DEATH MAY RESULT unreliable operation and may damage the detach- 2. -
09-11-21 Auction MASTER INVENTORY.Xlsx
AUCTION 09-11-21 CORBETT AUCTION FACILITY - 547 E. STAGECOACH RD., KUNA, ID AUCTION ORDER: 10:00am: RING #1 Starting with Guns - Noon Stop 10:00am: RING #2 Starting with outside tools, bikes, jewelry etc.- Noon Stop 12Noon (approx.): Break for Vehicles/ RV's/ Equipment **ORDER OF SALE SUBJECT TO CHANGE, AT AUCTIONEER'S DISCRETION & WEATHER ** BUYER RESPONSIBLE TO VERIFY ALL YEAR, MAKE, MODEL, VIN NUMBERS, AND CONDITIONS -- ALL ITEMS SOLD "AS-IS" SELLER GUARANTEES CLEAR TITLE OR AUCTION COMPANY WILL REFUND MONEY UPON RETURN OF VEHICLE IN SAME CONDITION LOT# GUNS: HANDGUNS: 3010 RUGER GP100 357MAG 175-78146 3011 SMITH & WESSON CLASSIC 629 44MAG DJH0237 3031 MOSIN NAGANT RUSSIA 1895 7.62X38 NP44 3012 BULBARIA MAKAROV FOXTROT ELBRIDE, NY 9X18 PMM AB25395 3013 GLOCK 17 9MM CME570 3014 PIETRO ITALY BERRETTA 81 9MM DG4465W 3015 SIG-SAUER P226 9MM 47A1673G1 3016 SPRINGFIELD 1911 45 ACPT NM647518 3017 PIETRO BARETTA ITALY 92 S PMM V05022Z 3018 RUGER MARK IV 22 LR 500117359 3019 CZECH REPUBLIC CZ75B LUGER 9MM D039251 3020 GLOCK 17 9MM BFYX622 3021 P. BERRETTA GARDONE VY ITALIA 1951 9MM 4401 3022 ZASTAVA M 57 7.62 MS7-001473 C-142841 3023 FABRIQUE NATIONAL HERSTAL BELGIQUE 9MM 245PM02600 3024 BERETTA USA CORP PARABELLUM 92FS 9MM BER114402Z 3025 SIG-SAUER 9220 45AUTO 37A026799 3026 ZASTAVA M57 7.62 C-101896 M57-002481 3027 SIG-SAUER P365 9MM 66A963685 3028 KAHR ARMS PM9 9MM VC0517 3029 RUGER LASER MAX LCP 380 AUTO 371319266 3030 KEL-TEC P3 380 AUTO H8G99 2865 SPRINGFIELD ARMORY XD 40 40 S&W XD484010 2861 KELTEC PF9 9MM RHF25 2860 COLT PTFA PYTHON