Boilermaker Health & Safety Manual
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Manufacturing Processes
Module 1 Classification of Metal Removal Processes and Machine tools Version 2 ME IIT, Kharagpur Lesson 2 Basic working principle, configuration, specification and classification of machine tools Version 2 ME IIT, Kharagpur Instructional Objectives At the end of this lesson, the students should be able to : (a) Describe the basic functional principles of machine tools (i) Illustrate the concept of Generatrix and Directrix (ii) Demonstrate Tool – work motions (iii) Give idea about machine tool drives (b) Show configuration of basic machine tools and state their uses (c) Give examples of machine tools - specification (d) Classify machine tools broadly. Basic functional principles of machine tool operations Machine Tools produce desired geometrical surfaces on solid bodies (preformed blanks) and for that they are basically comprised of; • Devices for firmly holding the tool and work • Drives for providing power and motions to the tool and work • Kinematic system to transmit motion and power from the sources to the tool-work • Automation and control systems • Structural body to support and accommodate those systems with sufficient strength and rigidity. For material removal by machining, the work and the tool need relative movements and those motions and required power are derived from the power source(s) and transmitted through the kinematic system(s) comprised of a number and type of mechanisms. (i) Concept of Generatrix and Directrix • Generation of flat surface The principle is shown in Fig. 2.1 where on a flat plain a straight line called Generatrix (G) is traversed in a perpendicular direction called Directrix (D) resulting a flat surface. • Generation of cylindrical surfaces The principles of production of various cylindrical surfaces (of revolution) are shown in Fig. -
Railway Employee Records for Colorado Volume Iii
RAILWAY EMPLOYEE RECORDS FOR COLORADO VOLUME III By Gerald E. Sherard (2005) When Denver’s Union Station opened in 1881, it saw 88 trains a day during its gold-rush peak. When passenger trains were a popular way to travel, Union Station regularly saw sixty to eighty daily arrivals and departures and as many as a million passengers a year. Many freight trains also passed through the area. In the early 1900s, there were 2.25 million railroad workers in America. After World War II the popularity and frequency of train travel began to wane. The first railroad line to be completed in Colorado was in 1871 and was the Denver and Rio Grande Railroad line between Denver and Colorado Springs. A question we often hear is: “My father used to work for the railroad. How can I get information on Him?” Most railroad historical societies have no records on employees. Most employment records are owned today by the surviving railroad companies and the Railroad Retirement Board. For example, most such records for the Union Pacific Railroad are in storage in Hutchinson, Kansas salt mines, off limits to all but the lawyers. The Union Pacific currently declines to help with former employee genealogy requests. However, if you are looking for railroad employee records for early Colorado railroads, you may have some success. The Colorado Railroad Museum Library currently has 11,368 employee personnel records. These Colorado employee records are primarily for the following railroads which are not longer operating. Atchison, Topeka & Santa Fe Railroad (AT&SF) Atchison, Topeka and Santa Fe Railroad employee records of employment are recorded in a bound ledger book (record number 736) and box numbers 766 and 1287 for the years 1883 through 1939 for the joint line from Denver to Pueblo. -
Product Catalog This Hobart® Catalog Represents an Interim Stage in the Brand Consolidation Process Announced by Hobart Brothers Company in May 2013
Product Catalog This Hobart® catalog represents an interim stage in the brand consolidation process announced by Hobart Brothers Company in May 2013. Included are products branded Tri-Mark® by Hobart alongside Hobart products. In these instances, the products are identical in formulation and manufacturing. Ultimately, Hobart will replace all Tri-Mark options. The catalog now also includes aluminum products formerly under the MAXAL® brand. Why the consolidation and this transition? In one word: simplification. Offering a single Hobart brand allows distributors and end users access to a full line of filler metals, ensuring the right product for the right application — every time. The addition of our collaborative-based service and filler metal expertise helps provide solutions to lower costs and increase productivity. For further information, contact our customer service team at 800-424-1543 or call our Applications Engineering Team at 800-532-2618 or email [email protected] Table of Contents Mild Steel & Low Alloy Stick Electrodes AWS Classifications and Oven Storage and Reconditioning of Stick Electrodes ............................................................... 2 Pipemaster® Pro-60, Pipemaster® 60, Hobart® 610 ...................................................................................................... 3 Pipemaster® 70, Pipemaster® 80, Pipemaster® 90 ......................................................................................................... 4 Hobart® 335A, Hobart® 335C, Hobart® 447A -
Vibrations in Metal Cutting Measurement, Analysis and Reduction
Vibrations in Metal Cutting Measurement, Analysis and Reduction Linus Pettersson Ronneby, March 2002 Department of Telecommunications and Signal Processing Blekinge Institute of Technology 372 25 Ronneby, Sweden c Linus Pettersson Licentiate Dissertation Series No. 01/02 ISSN 1650-2140 ISBN 91-7295-008-0 Published 2002 Printed by Kaserntryckeriet AB Karlskrona 2002 Sweden v Abstract Vibration and noise in metal cutting are ubiquitous problems in the workshop. The turning operation is one kind of metal cutting that exhibits vibration related problems. Today the industry aims at smaller tolerances in surface finish. Harder regulations in terms of the noise levels in the operator environment are also central. One step towards a solution to the noise and vibration problems is to investigate what kind of vibrations that are present in a turning operation. The vibrations in a boring operation have been put under scrutiny in the first part of this thesis. Analytical models have been compared with experimental results and the vibration pattern has been determined. The second part of the thesis deals with active vibration control in external turning operations. By embedding a piezo-ceramic actuator and an accelerometer into a tool holder it was possible to obtain a solution that can be fitted in a standard lathe. The control system consists of the active tool holder, a control system based on the filtered-X LMS algorithm and an amplifier designed for capacitive loads. The vibration level using this technique can be reduced by as much as 40 dB during an external turning operation. vii Preface The work presented in this licentiate thesis has been performed at the department of Telecommunications and Signal Processing at Blekinge Institute of Technology. -
Interchange Modification Report
I-26 / Naval Base Terminal Access Road Interchange INTERCHANGE MODIFICATION REPORT CHARLESTON COUNTY, SOUTH CAROLINA Prepared for: South Carolina Department of Transportation Prepared by: Parsons Brinckerhoff, Inc. May 2012 I-26ȀPortAccessRoadInterchangeModificationReport TABLEOFCONTENTS EXECUTIVE SUMMARY ............................................................................................................................................ 1 1. INTRODUCTION .............................................................................................................................................. 3 Project Location.................................................................................................................................................. 3 Project History.................................................................................................................................................... 3 Project Description ............................................................................................................................................. 7 Project Purpose and Need .................................................................................................................................. 9 Project Conceptual Design ................................................................................................................................ 11 Interchange Modification Report (IMR) Scope.................................................................................................. -
Vehicle Maintenance
VEHICLE MAINTENANCE Introduction 1.0 Introduction The servicing of the automobile has also changed greatly to keep in step with the engineering advances of the industry. The tools and equipments which the early mechanic used were poor compared to today’s standard, and in many cases were made by the mechanic. Today’s automotive mechanic is well trained and works in a clean, bright, well- ventilated, specially designed automotive service centre. A thorough knowledge of the parts an understanding of the mechanisms are essential in order that faculty conditions in any part of automotive mechanism may be detected and corrected. As a result, the mechanic must possess the knowledge, skill, and experience in this field to be successful . Service Station A service station is a place where in addition to care of the motor vehicle like mechanical service and minor repairs, petrol is supplied, cars are lubricated, and cleaned, washed and other types of simpler services that are required daily are performed. In general it includes a number of sections like garage general it includes a number of sections like garage general service, mechanical service, major repair shop, tire shop, paint shop, body shop. A service station is addition to the equipment available is garage is usually run in conjunction with a sales agency for a particular type of motor vehicle to provide comprehensive repair service for that particular vehicle. The equipment available, in a general garage will be added with specialized equipment like lifting tackle, and different types of jigs, fixtures and tools specially designed for checking, adjusting and repair of particular type and make of the vehicle. -
Introduction to Turning Tools and Their Application Identification and Application of Cutting Tools for Turning
Introduction to Turning Tools and their Application Identification and application of cutting tools for turning The variety of cutting tools available for modern CNC turning centers makes it imperative for machine operators to be familiar with different tool geometries and how they are applied to common turning processes. This course curriculum contains 16-hours of material for instructors to get their students ready to identify different types of turning tools and their uses. ©2016 MachiningCloud, Inc. All rights reserved. Table of Contents Introduction .................................................................................................................................... 2 Audience ..................................................................................................................................... 2 Purpose ....................................................................................................................................... 2 Lesson Objectives ........................................................................................................................ 2 Anatomy of a turning tool............................................................................................................... 3 Standard Inserts .............................................................................................................................. 3 ANSI Insert Designations ............................................................................................................. 3 Insert Materials -
Tool and Die Makers, Turret and Engine Lathe Operators, Sheet Metal
DO CU M E N T R ES U ME ED 025 582 VT 000 415 A Survey of Demand in Selected MetalworkingOccupations for Major Areas of Idaho. Idaho State Dept. of Employment, Boise. Pub Date Oct 66 Note- 34p. EDRS Price MF-$0.25 HC-$1.80 Descriptors-*Educational Needs, Employer Attitudes, *EmploymentOpportunities, *Employment Projections, Employment Statistics, Labor Supply, Metal WorkingOccupations, Occupational Information,*Occupational Surveys, Questionnaires, Skilled Occupations, Trade andIndustrial Education Identifiers- Idaho To determine the state and area impactof occupational shortages inthe metal working,skills in Idaho and to provide abasis for planningeffective vocational education programs, the IdahoDepartment of Employmentconducted a sample survey of 68 employers in the metal workingoccupations. The occupations wereselected from a national list of hard-to-findmetal workers and ihcludedmachinists, welders, tool and die makers, turret and enginelathe operators, sheetmetal workers, structural steel workers, andboilermakers. The study,conducted inApril1966, .encompasses the ninemost populous counties inIdaho including 55 percentof the (1) The lack of qualified metalworkers has population. Some weneral conclusions were: of the not caused curtailmentof operation, (2) More welderswill be needed than any other survey occupations, (3)The demand for qualifiedmachinists should remain at a high level and (4) Seasonality inthe total employment ofworkers was implied bythe survey for the occupationsof welders, structural steelworkers, sheet metal workers, machinists, and. boilermakers.Statistical data is presented intable form and the interview questionnaire is included inthe appendix. (DM) 4 Ow. 111111111111111 11111111higill U.S. DEPARTMENT OF HEALTH, EDUCATION & WELFARE OFFICE OF EDUCATION THIS DOCUMENT HAS BEEN REPRODUCED EXACTLY AS RECEIVED FROM THE PERSON OR ORGLNIZATION ORIGINATING IT.POINTS OF VIEW OR OPINIONS STATED DO NOT NECESSARILY REPRESENT OFFICIAL Of FICE OF EDUCATION POSITION OR POLICY. -
Metal Drill Bits Hammer Drill Stronger Than Steel Chisel Drill Bits Stone and Special Metal Drill Bits
BITS METAL DRILL BITS HAMMER DRILL STRONGER THAN STEEL CHISEL DRILL BITS STONE AND SPECIAL METAL DRILL BITS 307 | HSS-E DIN 338 cobalt 76–79 WOOD DRILL BITS 311 | HSS TIN DIN 338 steel drill bit 80–81 302 | HSS DIN 338, ground, split point 82–85 300 | HSS DIN 338, standard 86–90 300 | HSS DIN 338, standard, shank reduced 91 340 | HSS DIN 340, ground, split point, long 92 342 | HSS DIN 1869, ground, extra long 93 SAWS 344 | HSS hollow section drill bit / Facade drill bit 94 345 | HSS DIN 345 morse taper 95–96 303 | HSS DIN 1897 pilot drill bit, ground, split point, extra short 97 310 | HSS DIN 8037 carbide tipped 98 312 | HSS-G Speeder DIN 338 RN metal drill bit 99 304 | HSS Double end drill bit, ground, split point 100 315 | HSS Drill bit KEILBIT, ground 101 317 | HSS combination tool KEILBIT 102 329 | HSS countersink KEILBIT 103 327 | HSS countersink 90° DIN 335 C 104 328 | HSS deburring countersink 105 ASSORTMENTS 326 | HSS tube and sheet drill bit 106 325 | HSS step drill 107 140 | Scriber 108 320 | HSS hole saw bi-metal 109–112 SHELVES | From Pros for Pros | www.keil.eu | 73 MODULES - BITS HAMMER DRILL METAL DRILL BITS Nothing stops the metal drill bits because we offer a drill bit for every application. CHISEL HSS-E TWIST DRILL BIT 135° The HSS-E drill bit is a cobalt alloyed high performance drill bit. Even with insufficient cooling it has reserve in heat resistance. Due to the alloying addition of 5 % Co in the cutting material these drill bits can be used for working with work pieces with a tensile strength of over 800N/m². -
Bifilm Inclusions in High Alloyed Cast Iron
materials Article Bifilm Inclusions in High Alloyed Cast Iron Marcin Stawarz * and Malwina Dojka Department of Foundry Engineering, Silesian University of Technology, 7 Towarowa Street, 44-100 Gliwice, Poland; [email protected] * Correspondence: [email protected]; Tel.: +48-32-338-5532 Abstract: Continuous improvement in the quality of castings is especially important since a cast without defects is a more competitive product due to its longer lifecycle and cheaper operation. Producing quality castings requires comprehensive knowledge of their production, crystallization process, and chemical composition. The crystallization of alloyed ductile iron (without the addition of magnesium) with oxide bifilm inclusions is discussed. These inclusions reduce the quality of the castings, but they are a catalyst for the growth of spheroidal graphite that crystallizes in their vicinity. The research was carried out for cast iron with a highly hyper-eutectic composition. Scanning electron microscopy and EDS analysis were used in the research. A detailed analysis of the chemical composition was also carried out based on the spectrometric method, weight method, etc. Based on the obtained results, a model of spheroidal graphite crystallization near bifilm inclusions was proposed. The surface of the analyzed graphite particles was smooth, which suggests a primary crystallization process. The phenomenon of simple graphite and bifilm segregation towards the heat center of the castings was also documented. Keywords: bifilms; spheroidal graphite; alloyed cast iron; crystallization Citation: Stawarz, M.; Dojka, M. Bifilm Inclusions in High Alloyed Cast Iron. Materials 2021, 14, 3067. 1. Introduction https://doi.org/10.3390/ Foundry engineering processes are prone to many issues during casting manufactur- ma14113067 ing that may influence the final casting quality. -
SQAR DEFINITIONS and PROJECT ID GUIDE
Only the online system has the current version. Verify hard copy against online system before use. SQAR DEFINITIONS and PROJECT ID GUIDE SG - 0140 Revision Date: 05-07-2019 Approved (Signature on file) Nikki Kodama Director, Supplier Quality Aerospace Systems Sector 1 Only the online system has the current version. Verify hard copy against online system before use. Revision Record The latest issue of this document may be confirmed by viewing the OASIS web site: www.northropgrumman.com/suppliers Revision Date Revision Date Revision Date New 11/23/05 Date 1/14/09 Date 1/02/12 Date 5/15/06 Date 4/13/09 Date 1/11/13 Date 2/05/07 Date 8/01/09 Date 7/18/13 Date 3/17/08 Date 12/06/10 Date 10/21/13 Date 5/09/08 Date 1/26/11 Date 5/6/14 Date 8/18/08 Date 5/05/11 Date 11/25/15 Date 9/04/08 Date 6/20/11 Date 12/20/17 Date 10/20/08 Date 8/18/11 Date 5/7/2019 Note: All additions are in Blue font. Primary Change Summary • Updated SQAR Code J Title 2 Only the online system has the current version. Verify hard copy against online system before use. SQAR CODE DEFINITIONS SQAR Code A - Raw Materials Associated with metallic (ferrous and non-ferrous) or nonmetallic materials that are controlled by a material specification, i.e., sheet, bar/plate/round stock, ingots, extrusions, tubing, bare wire, fiberglass, graphite, Kevlar, plastics, rubber sheets, etc. Materials may be provided by the original mill or manufacturer, or furnished by distributors. -
Small Enterprise Manufacturing Support Programme [Semsp]
SMALL ENTERPRISE MANUFACTURING SUPPORT PROGRAMME [SEMSP] #BuyLocalBuyMadeInSA This scheme/fund is targeted at township and rural area-based entrepreneurs with a consideration for small-scale manufacturers located in cities. 1. PURPOSE a. To provide financial and business development support to small enterprises in the manufacturing industry sub-sectors b. To provide infrastructure to small enterprises in the manufacturing industry sub- sectors c. To provide market access opportunities to small enterprises (public and private sectors) d. To facilitate aggregate input costs for raw materials e. To prioritise manufacturing industry sub-sectors with good job creation potential, namely: furniture manufacturing metal and steel manufacturing chemical manufacturing agro-processing f. To contribute to the resuscitation of township and rural economies 2. SCOPE OF THE SEMSP a. The programme will be applicable to all the manufacturing industry sub-sectors, but will priorities furniture manufacturing, metal and steel manufacturing, petroleum & chemical manufacturing as well as food and beverages manufacturing (agro- processing). b. The programme will support the following categories of small enterprises that must be operating in townships and rural areas: c. Furniture manufacturers, including coffin makers. d. Manufacturers and suppliers of iron and steel products (steel erector, welder, boilermaker, pipefitter, millwright, blacksmith, gunsmith). e. Manufacturers of sanitizers, disinfectants, water, recycling, paints, oils, and related products.