DOCSLIB.ORG

MODEL G0791 COMBINATION GUNSMITHING LATHE/MILL OWNER's MANUAL (For Models Manufactured Since 9/15)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
MODEL G0791 COMBINATION GUNSMITHING LATHE/MILL OWNER's MANUAL (For Models Manufactured Since 9/15) MODEL G0791 COMBINATION GUNSMITHING LATHE/MILL OWNER'S MANUAL (For models manufactured since 9/15) COPYRIGHT © MAY, 2015 BY GRIZZLY INDUSTRIAL, INC., REVISED MAY, 2017 (BL) WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC. #WKBB17270 PRINTED IN CHINA V2.10.17 This manual provides critical safety instructions on the proper setup, operation, maintenance, and service of this machine/tool. Save this document, refer to it often, and use it to instruct other operators. Failure to read, understand and follow the instructions in this manual may result in fire or serious personal injury—including amputation, electrocution, or death. The owner of this machine/tool is solely responsible for its safe use. This responsibility includes but is not limited to proper installation in a safe environment, personnel training and usage authorization, proper inspection and maintenance, manual availability and compre- hension, application of safety devices, cutting/sanding/grinding tool integrity, and the usage of personal protective equipment. The manufacturer will not be held liable for injury or property damage from negligence, improper training, machine modifications or misuse. Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are: • Lead from lead-based paints. • Crystalline silica from bricks, cement and other masonry products. • Arsenic and chromium from chemically-treated lumber. Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: Work in a well ventilated area, and work with approved safety equip- ment, such as those dust masks that are specially designed to filter out microscopic particles. Table of Contents INTRODUCTION ............................................... 3 SECTION 4: LATHE OPERATIONS .............. 32 Contact Info.................................................... 3 Operation Overview ..................................... 32 Manual Accuracy ........................................... 3 Chuck & Faceplate Mounting....................... 33 Identification ................................................... 4 Chuck Safety & Support Devices ................ 33 Controls & Components ................................. 5 Chuck Installation......................................... 34 Machine Data Sheet ...................................... 8 Chuck Removal............................................ 35 Scroll Chuck Clamping ................................ 36 SECTION 1: SAFETY ..................................... 11 Chuck Jaw Reversal .................................... 36 Safety Instructions for Machinery ................ 11 4-Jaw Chuck ................................................ 37 Additional Safety for Metal Lathes ............... 13 Faceplate ..................................................... 38 Additional Safety for Mills ............................ 14 Tailstock ....................................................... 39 Additional Lathe Chuck Safety..................... 15 Centers ........................................................ 43 SECTION 2: POWER SUPPLY ...................... 16 Joining Drill Chuck & Arbor .......................... 45 Steady Rest ................................................. 46 SECTION 3: SETUP ....................................... 18 Follow Rest .................................................. 47 Preparation .................................................. 18 Carriage & Slide Locks ................................ 47 Unpacking .................................................... 18 Compound Rest ........................................... 47 Needed for Setup ......................................... 18 Tool Post ...................................................... 48 Inventory ...................................................... 19 Spider ........................................................... 50 Cleanup ........................................................ 20 Manual Feed ................................................ 50 Site Considerations ...................................... 21 Spindle Speed.............................................. 51 Assembly ..................................................... 22 Understanding Gear Charts ......................... 52 Anchoring to Floor ....................................... 25 Power Feed.................................................. 55 Leveling ........................................................ 25 End Gears .................................................... 58 Lubricating Lathe ......................................... 26 Threading ..................................................... 61 Power Connection........................................ 26 Test Run ...................................................... 28 SECTION 5: MILL OPERATIONS .................. 64 Spindle Break-In .......................................... 30 Operation Overview ..................................... 64 Recommended Adjustments ........................ 31 Removing Compound Rest .......................... 65 Downfeed Controls ...................................... 66 Headstock Movement .................................. 67 Table Travel ................................................. 68 Installing/Removing Tooling ......................... 69 Spindle Speed.............................................. 71 SECTION 6: ACCESSORIES ......................... 72 SECTION 10: PARTS ................................... 101 Accessories ................................................ 101 SECTION 7: MAINTENANCE ......................... 76 Headstock Gearing .................................... 103 Schedule ...................................................... 76 Headstock Controls.................................... 105 Cleaning/Protecting ...................................... 76 Quick-Change Gearbox ............................. 107 Lubrication ................................................... 77 Apron ......................................................... 109 Machine Storage .......................................... 82 Saddle & Cross Slide ................................. 111 SECTION 8: SERVICE ................................... 83 Compound Rest & Tool Holder .................. 113 Troubleshooting ........................................... 83 Tailstock ..................................................... 114 Adjusting Backlash....................................... 86 Lathe Motor, Bed, & Stand ........................ 115 Adjusting Gib................................................ 87 Feed Rod ................................................... 117 Adjusting Half Nut ........................................ 89 Machine Labels & Cosmetics .................... 118 Tensioning/Replacing V-Belt........................ 89 Electrical Components ............................... 119 Installing/Removing Gap Insert .................... 90 Steady Rest ............................................... 120 Adjusting Spindle Bearing Preload .............. 91 Follow Rest ................................................ 120 Mill Headstock............................................ 121 SECTION 9: WIRING ...................................... 94 Column & Fine Downfeed .......................... 124 Wiring Safety Instructions ............................ 94 Wiring Overview ........................................... 95 SECTION 11: APPENDIX ............................. 125 Electrical Cabinet Wiring Diagram ............... 96 Feed Chart ................................................. 125 Lathe Motor Wiring Diagram ........................ 98 Thread Dial Chart ...................................... 125 Mill Motor & Work Lamp Wiring Diagram .... 99 Metric Threading Chart .............................. 125 Control Panel Wiring Diagrams ................. 100 Inch Threading Chart ................................. 125 WARRANTY & RETURNS ........................... 129 INTRODUCTION Contact Info Manual Accuracy We stand behind our machines! If you have ques- We are proud to provide a high-quality owner’s tions or need help, contact us with the information manual with your new machine! below. Before contacting, make sure you get the serial number and manufacture date from the We made every effort to be exact with the instruc- machine ID label. This will help us help you faster. tions, specifications, drawings, and photographs in this manual. Sometimes we make mistakes, but Grizzly Technical Support our policy of continuous improvement also means 1815 W. Battlefield that sometimes the machine you receive is Springfield, MO 65807 slightly different than shown in the manual. Phone: (570) 546-9663 Email: [email protected] If you find this to be the case, and the difference between the manual and machine leaves you We want your feedback on this manual. What did confused or unsure about something, check our you like about it? Where could it be improved? website for an updated version. We post current Please take a few minutes to give us feedback. manuals and manual updates for free on our web- site at www.grizzly.com. Grizzly Documentation Manager P.O. Box 2069 Alternatively, you can call our Technical Support Bellingham, WA 98227-2069 for help. Before calling, make sure you write down Email: [email protected]
Load more

Recommended publications
  • Distal Radius System 2.5
    PRODUCT INFORMATION Distal Radius System 2.5 APTUS® Wrist 2 | Distal Radius System 2.5 Contents 3 A New Generation of Radius Plates 4 One System for Primary and Secondary Reconstruction 6 ADAPTIVE II Distal Radius Plates 8 FPL Plates 10 Hook Plates 11 Lunate Facet Plates 12 Rim Plates 13 Fracture Plates 14 Correction Plates 15 Volar Frame Plates 16 Extra-Articular Plates 17 Small Fragment Plates 18 Dorsal Frame Plates 19 XL Plates 20 Distal Ulna Plates 21 Fracture Treatment Concept 22 Technology, Biomechanics, Screw Features 24 Precisely Guided Screw Placement 25 Instrument for Reconstruction of the Volar Tilt 26 Storage 27 Overview Screw Trajectories 29 Ordering Information 47 Bibliography For further information regarding the APTUS product line visit: www.medartis.com Medartis, APTUS, MODUS, TriLock, HexaDrive and SpeedTip are registered trademarks of Medartis AG / Medartis Holding AG, 4057 Basel, Switzerland www.medartis.com Distal Radius System 2.5 | 3 A New Generation of Radius Plates Why is a new generation of radius plates needed? Distal radius fractures are the most common fractures of the stable plate systems have enabled open reduction and inter- upper extremities. The knowledge of these fractures has grown nal fixation to become an established treatment method for enormously over the last years. Treatment concepts have like- intra- and extra-articular distal radius fractures. These sys- wise been refined. It is now generally accepted that the best tems have enabled even severe extension fractures with dor- possible anatomical reconstruction of the radiocarpal joint sal defect zones to be precisely repositioned and treated with (RCJ) and distal radioulnar joint (DRUJ) to produce a func- osteosynthesis via volar access without the need for additional tional outcome is a requirement.
    [Show full text]
  • VARIABLE ANGLE LOCKING HAND SYSTEM for Fragment-Specific Fracture Fixation with Variable Angle Locking and Locking Technology
    VARIABLE ANGLE LOCKING HAND SYSTEM For fragment-specific fracture fixation with variable angle locking and locking technology SURGICAL TECHNIQUE TABLE OF CONTENTS INTRODUCTION Variable Angle Locking Hand System Overview 2 AO Principles 5 Indications 6 Featured Plates & Technique Highlights 7 Screws in the System 18 Featured Instruments 20 SURGICAL TECHNIQUE Preoperative Planning and Reduction 27 Lag Screw Insertion (Optional) 29 Prepare and Insert Plate 37 Insert Screw 50 Implant Removal 51 PRODUCT INFORMATION Implants 54 Instruments 63 Graphic Cases 70 Set Lists 77 Image intensifier control Variable Angle Locking Hand System Surgical Technique DePuy Synthes Companies VARIABLE ANGLE LOCKING HAND SYSTEM OVERVIEW The DePuy Synthes Variable Angle Locking Hand System consists of plates that are anatomic, procedure-specific, and available in both stainless steel and titanium. The Variable Angle Locking Hand System offers instrumentation to aid in: x fracture reduction x provisional fixation x plate adaptation x construct creation Designed for the Surgeon and Patient A dedicated, global surgeon team was integral to the design of this system through extensive consultation and participation in multiple design labs. Surgeon interviews, design and development meetings, and collaboration with key opinion leaders determined the clinical components necessary for the DePuy Synthes Variable Angle Locking Hand System. DePuy Synthes Companies are dedicated to improving patient care. System Snapshot x Extensive system of anatomically precontoured plates x First to the market with 1.3 mm locking screws for hand plating1 x Forceps that aid in fracture reduction and lag screw application x Forceps that aid in plate fixation x Self-retaining screwdrivers x Plates available in 316L stainless steel and titanium x Color-coded instruments 1DePuy Synthes Companies market analysis of leading orthopaedic companies, conducted May 2015.
    [Show full text]
  • Milling Fixtures Principles of Their Design and Examples from Practice Third Revised Edition
    UC-NRLF 25 CENTS B 3 Dlfi 742 MILLING FIXTURES PRINCIPLES OF THEIR DESIGN AND EXAMPLES FROM PRACTICE THIRD REVISED EDITION MACHINERY'S REFERENCE SERIES NO. 4 PUBLISHED BY MACHINERY, NEW YORK MACHINERY'S REFERENCE SERIES EACH NUMBER IS ONE UNIT IN A COMPLETE LIBRARY OF MACHINE DESIGN AND SHOP PRACTICE REVISED AND REPUBLJSHED FROM MACHINERY NUMBER 4 MILLING FIXTURES THIRD REVISED EDITION CONTENTS Elementary Principles of Milling Fixtures, by E. R. MARKHAM - 3 Examples of Milling Fixtures 26 Copyright, 1912, The Industrial Press, Publishers of MACHINERY 49-55 Lafayette Street, New York City X CHAPTER I ELEMENTARY PRINCIPLES OP MILLING MACHINE FIXTURES* The principal consideration, when designing fixtures that are to be fastened solidly to the table of a milling machine, should be to have the fixture firm enough to admit working the machine and cutter to their limit of endurance. In fact, the fixture should be stronger than the machine itself, and able to resist any possible strain that the cutter can exert. While fixtures should be strong, the movable parts should be so made as to be easily manipulated. All bearing and locat- ing points should be accessible to facilitate the removal of chips and dirt. The action of the clamping devices should be rapid, so that no time is lost in manipulating them. The Milling Machine Vise-False Vise Jaws The first fixture to consider is the milling machine vise, which has a stationary and a movable jaw, against which are placed removable jaws, held in place by means of screws. The stationary-removable jaw generally has connected with it any shelf, pins, or means for locating the pieces to be machined.
    [Show full text]
  • Hand-Forging and Wrought-Iron Ornamental Work
    This is a digital copy of a book that was preserved for generations on library shelves before it was carefully scanned by Google as part of a project to make the world’s books discoverable online. It has survived long enough for the copyright to expire and the book to enter the public domain. A public domain book is one that was never subject to copyright or whose legal copyright term has expired. Whether a book is in the public domain may vary country to country. Public domain books are our gateways to the past, representing a wealth of history, culture and knowledge that’s often difficult to discover. Marks, notations and other marginalia present in the original volume will appear in this file - a reminder of this book’s long journey from the publisher to a library and finally to you. Usage guidelines Google is proud to partner with libraries to digitize public domain materials and make them widely accessible. Public domain books belong to the public and we are merely their custodians. Nevertheless, this work is expensive, so in order to keep providing this resource, we have taken steps to prevent abuse by commercial parties, including placing technical restrictions on automated querying. We also ask that you: + Make non-commercial use of the files We designed Google Book Search for use by individuals, and we request that you use these files for personal, non-commercial purposes. + Refrain from automated querying Do not send automated queries of any sort to Google’s system: If you are conducting research on machine translation, optical character recognition or other areas where access to a large amount of text is helpful, please contact us.
    [Show full text]
  • Single-Angle Compression Members Welded by One Leg to Gusset Plates
    SINGLE-ANGLE COMPRESSION MEMBERS WELDED BY ONE LEG TO GUSSET PLATES Sherief Sharl Shukry Sakla, M.A.Sc., P.Eng. A Dissertation Submitted to the Faculty of Graduate Studies and Research through the Department of Civil and Environmental Engineering in Partial Fulfilment of the Requirements for the Degree of Doctor of Philosophy at the University of Windsor Windsor, Ontario, Canada 1997 National Library Bibliothbque nationale I*m of Canada du Canada Acquisitions and Acquisitions et Bibliographic Services services bibliographiques 395 Wellington Street 395. rue Wellington OtrawaON K1AON4 OttawaOfU K1AON4 Canada Canada The author has granted a non- L'auteur a accorde une licence non exclusive licence allowing the exclusive permettant a la National Library of Canada to Bibliotheque nationale du Canada de reproduce, loan, distribute or sell reproduire, preter, distribuer ou copies of this thesis in microform, vendre des copies de cette these sous paper or electronic formats. la forme de microfiche/film, de reproduction sur papier ou sur format electronique. The author retains ownership of the L'auteur conserve la propriete du copyright in this thesis. Neither the droit d'auteur qui protege cette these. thesis nor substantial extracts fiom it Ni la these ni des ehtssubstantiels may be printed or otherwise de celle-ci ne doivent Btre imprimes reproduced without the author's ou autrernent reproduits sans son permission. aut orisation. G 1997 Sherief S. S. Sakla All Rights Reserved I hereby declare that I am the sole author of this document. I authorize the University of Windsor to lend this document to other institutions or individuals for the purpose of scholarly research.
    [Show full text]
  • Manufacturing Glossary
    MANUFACTURING GLOSSARY Aging – A change in the properties of certain metals and alloys that occurs at ambient or moderately elevated temperatures after a hot-working operation or a heat-treatment (quench aging in ferrous alloys, natural or artificial aging in ferrous and nonferrous alloys) or after a cold-working operation (strain aging). The change in properties is often, but not always, due to a phase change (precipitation), but never involves a change in chemical composition of the metal or alloy. Abrasive – Garnet, emery, carborundum, aluminum oxide, silicon carbide, diamond, cubic boron nitride, or other material in various grit sizes used for grinding, lapping, polishing, honing, pressure blasting, and other operations. Each abrasive particle acts like a tiny, single-point tool that cuts a small chip; with hundreds of thousands of points doing so, high metal-removal rates are possible while providing a good finish. Abrasive Band – Diamond- or other abrasive-coated endless band fitted to a special band machine for machining hard-to-cut materials. Abrasive Belt – Abrasive-coated belt used for production finishing, deburring, and similar functions.See coated abrasive. Abrasive Cutoff Disc – Blade-like disc with abrasive particles that parts stock in a slicing motion. Abrasive Cutoff Machine, Saw – Machine that uses blade-like discs impregnated with abrasive particles to cut/part stock. See saw, sawing machine. Abrasive Flow Machining – Finishing operation for holes, inaccessible areas, or restricted passages. Done by clamping the part in a fixture, then extruding semisolid abrasive media through the passage. Often, multiple parts are loaded into a single fixture and finished simultaneously. Abrasive Machining – Various grinding, honing, lapping, and polishing operations that utilize abrasive particles to impart new shapes, improve finishes, and part stock by removing metal or other material.See grinding.
    [Show full text]
  • Ring-Bending Machines
    THE CHRONICLE OF THE COMPANY 1965 Foundation of the company as an one-man-business, trading of gates, metal doors and door frames, window bars and grills. Glaser headquarter is still at Kleestadt, near Groß-Umstadt. First exhibitions in Erbach, Groß-Umstadt and Frankfurt. 1971 Company moves to Groß-Umstadt; building of the first storage- and production hall "Am Brüchelsteg" Extension of the production line: windows, doors, benches and fences made out of plastic, wrought iron works and wrought-iron machines. Automatic Machines 1976 Achieving of the Master Craftsman's Diploma of the Handwerkskammer Darmstadt. 1977 Opening up the second production hall. Extension of teh production line for wrought-iron articles 1982 For the first time GLASER is represented at the International Handwerkermesse München and the Hannover Fair. First pioneering success, mostly in the construction of machinery 1986 Buildingof the fourth factory hall for the production of machines and tools. Achieving the license to train in wrought-iron crafts and constructing of tools and machines. Export business is extended. Attachments for GDM 1990 Demolition of the first factory hall and putting up the new exhibition and administration building. GLASER's 25th anniversary on 8th December 1990 1992 Opening up a new establishment at Bamberg (Bavaria) of 2.000 square meters for the production of wrought-iron articles. 1995 Erection of the fifth hall of 3.000 m² with the most modern bending centre and facilities for stainless Automatic Scroll Benders Scroll steel- and CAD trainings as well as production of machinery and tools. 1997 Wining award »Staatspreis der Bayerischen Staatsregierung« and the »Bundespreis für hervorragende innovative Leistungen für das Handwerk« .
    [Show full text]
  • Piranha Ironworkers
    High Quality Genuine Piranha Tooling Piranha Ironworkers Capacities & Specifications Single Operator Ironworkers Make your Piranha Ironworker even more productive and flexible! Rated on Mild Steel (60,000) PSI Tensile Strength P-50, P-65, P-90, P-110 and P-140 All machines subject to changes in specification High Quality Tooling Piranha ironworkers give metal fabricators outstanding quality and innovative features. Every Piranha provides • Genuine Piranha tooling is formulated to extend your tooling life. P-50 P-65 P-90 P-110 P-140 PII-88 PII-140 SEP-120 1524 quality work, savings in set-up time, adaptability and P-65 • Each tool is laser-engraved for easy identification. versatility through a wide range of tooling, and factory Throat Depth 5" 8" 10" 12" 12" 9" 20.5" 21.5" 24" P-50 • Tuffskin tooling for extended tool life. Piranha Ironworkers engineering and support. Open Height 11-1/2" 13-1/2" 15" 15-1/2" 15-1/2" 14" 14" 12-1/4" 5-3/8" • Oversized tooling for all of your larger punching needs. Available Attachments for P-50: A, B, C, D, F, H, I, J, K Closed Height • Tooling is packed with a protective coating and then shrink-wrapped 7-3/4" 9-1/4" 10-1/8" 10-1/4" 10-1/4" 7-3/4" 7-3/4" 10-1/4" 3-3/8" Single Operator, Dual Operator, and Single End Punch Presses For P-65, P-90, P-110 and P-140: A, B, C, D, E, F, G, H, I, J, K to cardboard.
    [Show full text]
  • Study Unit Toolholding Systems You’Ve Studied the Process of Machining and the Various Types of Machine Tools That Are Used in Manufacturing
    Study Unit Toolholding Systems You’ve studied the process of machining and the various types of machine tools that are used in manufacturing. In this unit, you’ll take a closer look at the interface between the machine tools and the work piece: the toolholder and cutting tool. In today’s modern manufacturing environ ment, many sophisti- Preview Preview cated machine tools are available, including manual control and computer numerical control, or CNC, machines with spe- cial accessories to aid high-speed machining. Many of these new machine tools are very expensive and have the ability to machine quickly and precisely. However, if a careless deci- sion is made regarding a cutting tool and its toolholder, poor product quality will result no matter how sophisticated the machine. In this unit, you’ll learn some of the fundamental characteristics that most toolholders have in common, and what information is needed to select the proper toolholder. When you complete this study unit, you’ll be able to • Understand the fundamental characteristics of toolhold- ers used in various machine tools • Describe how a toolholder affects the quality of the machining operation • Interpret national standards for tool and toolholder iden- tification systems • Recognize the differences in toolholder tapers and the proper applications for each type of taper • Explain the effects of toolholder concentricity and imbalance • Access information from manufacturers about toolholder selection Remember to regularly check “My Courses” on your student homepage. Your instructor
    [Show full text]
  • Using a Myford Keats Angle Plate
    Using a Myford Keats Angle Plate Myford Keats Angle Plate A Keats angle plate is ideal for mounting large items and unevenly shaped castings onto the lathe faceplate for machining. Whilst most available Keats Angle Plates simply have small flanges to attach the unit to the faceplate, the Myford Keats Angle Plate features a full 360o flange for far greater rigidity. An additional advantage of this “full face” flange is that the unit is more balanced and it is far less likely that inconvenient stacks of balance weights will be needed to balance the faceplate. The angle plate is available in two sizes, intended for the 7” and 9” Myford faceplates respectively. The plate illustrated here is the 7” version and the rear flange is 135 mm (5¼”) diameter. The moveable jaw may be reversed to accommodate items of smaller diameter as illustrated in Photo.2 and a through hole is provided in the rear flange to accommodate longer items which project into the headstock mandrel bore. Photo.2 The Angle Plate Set Up For Smaller Photo.3 A Through Hole Facilitates Longer Diameter Items. Items Using The Myford Keats Angle Plate The most usual way to use the Keats Angle Plate is by attaching it to the faceplate of the lathe, although it is a most adaptable accessory and may also be used in a variety of other ways. Photo. 4 shows the angle plate bolted to the faceplate of a customers Myford Super 7 B where it is to be used to turn a bush from the 7 end of a 1 /8” (68.8mm) round bar.
    [Show full text]
  • Power Plant Millwright Fitter K Attendant
    QUALIFICATIONS PACK - OCCUPATIONAL STANDARDS FOR POWER SECTOR Contents 1. Introduction and Contacts..….………………..….1 2. Qualifications Pack……….…….........................2 3. OS Units……………………..…….….......................2 4. Glossary of Key Terms ……………………………….3 5. Annexure: Nomenclature for QP & OS........39 OS describe what individuals need to do, know and understand in Introduction order to carry out a particular job Qualifications Pack- Power Plant Millwright Fitter role or function k Attendant OS are SECTOR: POWER performance standards that SUB-SECTOR: Generation individuals must OCCUPATION: Plant & Equipment Maintenance achieve when carrying out REFERENCE ID: PSC / Q 0301 functions in the workplace, ALIGNED TO: NCO-2004/7233.38 together with Power Plant Millwright Fitters also known as Maintenance Fitters are responsible specifications of for dismantling, inspecting, repairing, assembling, installing, aligning, commissioning of the underpinning power plant machinery and equipment. knowledge and understanding Brief Job Description: The incumbent works on power plant machinery and mechanical equipment and components. This equipment may include turbines and internal combustion engines, power transmission assemblies, basic pneumatic systems, basic hydraulic systems, pumps, compressors,fans, fuel handling system, lubrication, Power Sector Skill cooling and exhaust systems, etc. Some components worked on include bearings, Council valves, drives. 2nd Floor, CBIP Building, Personal Attributes: Physically and mentally able to safely perform essential Malcha Marg, functions of the job. This will also include differently abled people who can perform the Chanakyapuri, New job with or without reasonable accommodations (modified practices.) The candidate Delhi - should be able to climb ladders, scaffolds, poles and towers of various heights. Also able to crawl and work in confined spaces such as attics, manholes and crawlspaces.The E-mail: [email protected] candidate should be able to read, hear and understand instructions and warnings.
    [Show full text]
  • Semi-Solid Slurry Formation Via Liquid Metal
    SEMI-SOLID SLURRY FORMATION VIA LIQUID METAL MIXING A Thesis Submitted to the Faculty of the WORCESTER POLYTECHNIC INSTITUTE in partial fulfillment of the requirements for the Degree of Master of Science in Materials Science and Engineering July 2003 by Matthew M. Findon ________________________________________ APPROVED: Diran Apelian, Howmet Professor of Engineering, Advisor Richard D. Sisson, Jr., Professor of Mechanical Engineering, Materials Science and Engineering Program Head ii Abstract New, economical semi-solid metal (SSM) processes rely on forced convection during solidification to influence non-dendritic growth. The fundamental mechanisms that produce SSM microstructures in the presence of forced convection (due to fluid flow) are not fully understood. The objective of this work is to elucidate these mechanisms through the use of a new semi-solid slurry-making technique. Employing an apparatus developed at WPI, two alloy melts are mixed within a static reactor that induces convection and rapid cooling. Experiments carried out with this apparatus, named the “Continuous Rheoconversion Process” (CRP), result in globular semi-solid microstructures throughout a wide range of processing conditions. These conditions include the superheat in the melts before mixing, cooling rate of the slurry through the SSM range, and the presence or absence of inoculants in the melts. The results comprise repeatable sets of semi-solid microstructures having fine particle size and shape factors approaching unity. Even in the absence of melt inoculants, uniform distributions of α-Al particle sizes of about 60µm are attainable. Entrapped liquid is not present in the majority of the samples obtained with the CRP, and irregular particles that form in the process are of a limited distribution.
    [Show full text]