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Material Removal Modeling and Life Expectancy of Electroplated CBN Grinding Wheel and Paired Polishing Tianyu Yu Iowa State University
Iowa State University Capstones, Theses and Graduate Theses and Dissertations Dissertations 2016 Material removal modeling and life expectancy of electroplated CBN grinding wheel and paired polishing Tianyu Yu Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/etd Part of the Engineering Mechanics Commons, and the Mechanical Engineering Commons Recommended Citation Yu, Tianyu, "Material removal modeling and life expectancy of electroplated CBN grinding wheel and paired polishing" (2016). Graduate Theses and Dissertations. 16045. https://lib.dr.iastate.edu/etd/16045 This Dissertation is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Graduate Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. Material removal modeling and life expectancy of electroplated CBN grinding wheel and paired polishing by Tianyu Yu A dissertation submitted to the graduate faculty in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Major: Engineering Mechanics-Aerospace Engineering Program of Study Committee: Ashraf F. Bastawros, Major Professor Abhijit Chandra Wei Hong Thomas Rudolphi Stephen Holland Iowa State University Ames, Iowa 2016 Copyright © Tianyu Yu, 2016. All rights reserved. ii DEDICATION I would like to dedicate this dissertation to my parents -
11-21-17 LETTING: 12-13-17 Page 1 of 5 KANSAS DEPARTMENT OF
11-21-17 LETTING: 12-13-17 Page 1 of 5 KANSAS DEPARTMENT OF TRANSPORTATION 517122151 U056-046 KA 4670-01 NHPP-A467(001) ___________________________________________________________________________ CONTRACT PROPOSAL 1. The Secretary of Transportation of the State of Kansas [Secretary] will accept only electronic internet proposals from prequalified contractors for construction, improvement, reconstruction, or maintenance work in the State of Kansas, said work known as Project No.: U056-046 KA 4670-01 NHPP-A467(001) The general scope, location and net length are: MILLING AND HMA OVERLAY. US-56 FR APPRX 900 FT E US56/US69 JCT TO APPROX 1350 FT E OF ROE AVE IN JO CO. LENGTH IS 1.825 MI. 2. This is the Proposal of [Contractor] to complete the Project for the amount set out in the accompanying Unit Prices List. 3. The Contractor makes the following ties and riders as part of its Proposal in addition to state ties, if any: ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 4. Contractors and other interested entities may examine the Bidding Proposal Form/Contract Documents (see paragraph 11 below) at the County Clerk's Office in the County in which the Project is located and at the Kansas Department of Transportation [KDOT] Bureau of Construction and Materials, Eisenhower State Office Building, 700 SW Harrison, Topeka, Kansas 66603. Contractors may examine and print the Bidding Proposal Form/ Contract Documents by using KDOT's website at http://www.ksdot.org and choosing the following selections: "Doing Business","Bidding & Letting" and "Proposal Information", and using the links provided in the Project information for this project. KDOT will not print and mail paper copies of Proposal Forms. -
5.1 GRINDING Definitions
UNIT-V GRINDING AND BROACHING 5.1 Grinding Definitions Cutting conditions in grinding Wheel wear Surface finish and effects of cutting temperature Grinding wheel Grinding operations Finishing Processes Introduction Finishing processes 5.1 GRINDING Definitions Abrasive machining is a material removal process that involves the use of abrasive cutting tools. There are three principle types of abrasive cutting tools according to the degree to which abrasive grains are constrained, bonded abrasive tools: abrasive grains are closely packed into different shapes, the most common is the abrasive wheel. Grains are held together by bonding material. Abrasive machining process that use bonded abrasives include grinding, honing, superfinishing; coated abrasive tools: abrasive grains are glued onto a flexible cloth, paper or resin backing. Coated abrasives are available in sheets, rolls, endless belts. Processes include abrasive belt grinding, abrasive wire cutting; free abrasives: abrasive grains are not bonded or glued. Instead, they are introduced either in oil-based fluids (lapping, ultrasonic machining), or in water (abrasive water jet cutting) or air (abrasive jet machining), or contained in a semisoft binder (buffing). Regardless the form of the abrasive tool and machining operation considered, all abrasive operations can be considered as material removal processes with geometrically undefined cutting edges, a concept illustrated in the figure: The concept of undefined cutting edge in abrasive machining. Grinding Abrasive machining can be likened to the other machining operations with multipoint cutting tools. Each abrasive grain acts like a small single cutting tool with undefined geometry but usually with high negative rake angle. Abrasive machining involves a number of operations, used to achieve ultimate dimensional precision and surface finish. -
Grinding Machine Construction Types of Grinders
Grinding machine A grinding machine is a machine tool used for producing very fine finishes or making very light cuts, using an abrasive wheel as the cutting device. This wheel can be made up of various sizes and types of stones, diamonds or of inorganic materials. For machines used to reduce particle size in materials processing see grinding. Construction The grinding machine consists of a power driven grinding wheel spinning at the required speed (which is determined by the wheel’s diameter and manufacturer’s rating, usually by a formula) and a bed with a fixture to guide and hold the work-piece. The grinding head can be controlled to travel across a fixed work piece or the workpiece can be moved whilst the grind head stays in a fixed position. Very fine control of the grinding head or tables position is possible using a vernier calibrated hand wheel, or using the features of NC or CNC controls. Grinding machines remove material from the workpiece by abrasion, which can generate substantial amounts of heat; they therefore incorporate a coolant to cool the workpiece so that it does not overheat and go outside its tolerance. The coolant also benefits the machinist as the heat generated may cause burns in some cases. In very high-precision grinding machines (most cylindrical and surface grinders) the final grinding stages are usually set up so that they remove about 2/10000mm (less than 1/100000 in) per pass - this generates so little heat that even with no coolant, the temperature rise is negligible. Types of grinders These machines include the Belt grinder, which is usually used as a machining method to process metals and other materials, with the aid of coated abrasives. -
PFERD Tools for Use on Construction Steel
PFERD tools for use on construction steel TRUST BLUE Steel Tools for use on construction steel Introduction, table of contents August Rüggeberg GmbH & Co . KG, Marienheide/Germany, develops, produces and markets tools for surface finishing and cutting materials under the brand name PFERD . For more than 100 years, PFERD has been a distinctive brand mark for excellent quality, top performance and economic value . PFERD produces an extensive tool range that fulfils your various requirements for the processing of steel . All the tools have been developed especially for these applications and have proven themselves in practice . In this PFERD PRAXIS brochure we have summarized our long years of experience and current know-how in the specific stock removal and performance behaviour required PFERDVIDEO for the processing of steel, construction, carbon, tool, case-hardened steels and other You will receive more alloy steels in particular . information on the PFERD brand here or at www .pferd com. PFERD worldwide PFERDWEB You can find an overview of all PFERD subsidiaries and trad- ing partner repre- sentatives here or at www .pferd com. Steel PFERD tools – Catalogues 201–209 Material with tradition and a future . 3 On pages 24–41 PFERD describes the specific properties of Material knowledge . 6 the individual tool groups that are particularly suitable for Examples of categories of steel . 7 use on construction steel . Classification of steel . 8 Overview . 24 Classification by material numbers and classes . 9 Catalogue 201 – Files . 25 Classification according to intended use . 10 Catalogue 202 – Tungstens carbide burrs . 26 Grades of construction steel . 11 Catalogue 202 – EDGE FINISH, hole cutters, Corrosion and corrosion protection . -
Boilermaking Manual. INSTITUTION British Columbia Dept
DOCUMENT RESUME ED 246 301 CE 039 364 TITLE Boilermaking Manual. INSTITUTION British Columbia Dept. of Education, Victoria. REPORT NO ISBN-0-7718-8254-8. PUB DATE [82] NOTE 381p.; Developed in cooperation with the 1pprenticeship Training Programs Branch, Ministry of Labour. Photographs may not reproduce well. AVAILABLE FROMPublication Services Branch, Ministry of Education, 878 Viewfield Road, Victoria, BC V9A 4V1 ($10.00). PUB TYPE Guides Classroom Use - Materials (For Learner) (OW EARS PRICE MFOI Plus Postage. PC Not Available from EARS. DESCRIPTORS Apprenticeships; Blue Collar Occupations; Blueprints; *Construction (Process); Construction Materials; Drafting; Foreign Countries; Hand Tools; Industrial Personnel; *Industrial Training; Inplant Programs; Machine Tools; Mathematical Applications; *Mechanical Skills; Metal Industry; Metals; Metal Working; *On the Job Training; Postsecondary Education; Power Technology; Quality Control; Safety; *Sheet Metal Work; Skilled Occupations; Skilled Workers; Trade and Industrial Education; Trainees; Welding IDENTIFIERS *Boilermakers; *Boilers; British Columbia ABSTRACT This manual is intended (I) to provide an information resource to supplement the formal training program for boilermaker apprentices; (2) to assist the journeyworker to build on present knowledge to increase expertise and qualify for formal accreditation in the boilermaking trade; and (3) to serve as an on-the-job reference with sound, up-to-date guidelines for all aspects of the trade. The manual is organized into 13 chapters that cover the following topics: safety; boilermaker tools; mathematics; material, blueprint reading and sketching; layout; boilershop fabrication; rigging and erection; welding; quality control and inspection; boilers; dust collection systems; tanks and stacks; and hydro-electric power development. Each chapter contains an introduction and information about the topic, illustrated with charts, line drawings, and photographs. -
Grinding Machines: (14 Metal Buildup:And (15) the (Shipboard) Repair Department and Repair Work
DOCUMENT RESUME ED 203 130 CE 029 243 AUTHOR Bynum, Michael H.: Taylor, Edward A. TITLE Machinery Repairman 3 6 2. Rate TrainingManual and Nonresident Career Course. Revised. INSTITUTION Naval Education and Training Command,Washington, D.C. REPORT NO NAVEDTRA-10530-E PUB DATE 81 NOTE 671p.: Photographs andsome diagrams will not reproduce well. EDRS PRICE MF03/PC27 Plus Postage. DESCRIPTORS Behavioral Objectives; CorrespondenceStudy; *Equipment Maintenance: Rand Tools;Independent Study: Instructional Materials: LearningActivities: Machine Repairers: *Machine Tools;*Mechanics (Process): Military Training: Postsecondary Education: *Repair: Textbooks: *Tradeand Industrial Education IDENTIFIERS Navy ABSTRACT This Rate Training Manual (textbook)and Nonresident Career Course form a correspondence self-studypackage to teach the theoretical knowledge and mental skillsneeded by the Machinery Repairman Third Class and Second Class. The15 chapters in the textbook are (1)Scope of the Machinery Repairman Rating:(2) Toolrooms and Tools:(3) Layout and Benchwork: (4) Metals and Plastics:(51 Power Saws and Drilling Machines:(6) Offhand Grinding of Tools:(7) Lathes and Attachments:(8) Basic Engine Lathe Operations:(9) Advanced Engine Lathe Operations: (10)Turret Lathes and Turret Lathe Operations:(11) Milling Machines and Milling Operations:(121 Shapers, Planers, and Engravers: (13)Precision Grinding Machines: (14 Metal Buildup:and (15) The (Shipboard) Repair Department and Repair Work. Appendixesinclude Tabular Tnformation of Benefit to Machinery Repairman(23 tables), Formulas. for Spur Gearing, Formulas for DiametralPitch System, and Glossary. The Nonresident Career Course follows theindex. It contains T1 assignments, which are organized into thefollowing format: textbook assignment and learning objectives withrelated sets of teaching items to be answered. (YLB) *********************************************************************** Peproductions supplied by EDRSare the best that can be made from the original document. -
Effect of Process Parameters on Micro Hardness of Mild Steel Processed by Surface Grinding Process
IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-ISSN: 2278-1684,p-ISSN: 2320-334X, Volume 10, Issue 6 (Jan. 2014), PP 61-65 www.iosrjournals.org Effect of Process Parameters on Micro Hardness of Mild Steel Processed by Surface Grinding Process Balwinder Singh1 , Balwant Singh2 1(Department of Mechanical Engineering, GZS Punjab Technical University Campus Punjab 151001, India 2(Department of Mechanical Engineering, GZS Punjab Technical University Campus Punjab 151001, India Abstract: Surface grinding process can be utilized to create flat shapes at a high production rate and low cost.. In this investigation, indigenously designed set up were used for evaluating the surface grinding process was established. An experimental investigation was carried out to study the effect of surface grinding process parameters i.e. Inlet pressure of coolant, grinding wheel speed, work-piece speed, and nozzle angle on the micro hardness of the mild steel specimen. In the present study Horizontal spindle and reciprocating table type surface grinding machine fitted with test rig is used and cutting fluid is applied through the convergent nozzle to throw the cutting fluids at the cutting zone. In order to evaluate the effect of selected process parameters, one variable approach has been used in the present study. Plots of various Micro Hardness responses have been used to determine the relationship between the output response and the input parameters. The value of microhardness of grinded mild steel work-piece varies from 292.63 to 370.73 HV. Keywords: Surface grinding process, Micohardness, Mild Steel Specimen I. INTRODUCTION The grinding process is the material removal and surface process to shape the finish part of any materials example steel, aluminum alloys and the others. -
A Study on the Effect of Surface Grinding on Chloride Induced Pitting Initiation of Austenitic Stainless Steel 304 Under Thermal Insulation at Ambient Temperature
cie al S nce Sivanathan, J Material Sci Eng 2018, 7:1 ri s te & a E M n DOI: 10.4172/2169-0022.1000412 f g o i n l e a e n r r i n u g o Journal of Material Sciences & Engineering J ISSN: 2169-0022 Research Article Article OpenOpen Access Access A Study on the Effect of Surface Grinding on Chloride Induced Pitting Initiation of Austenitic Stainless Steel 304 under Thermal Insulation at Ambient Temperature Prema Sivanathan* Department of Mechanical Engineering, Universiti Teknologi Petronas, 32610 Bandar Seri Iskandar, Perak, Malaysia Abstract The investigation was carried out to study the effect of surface grinding on chloride induced stress corrosion cracking (CISCC) of austenitic stainless steels 304 at ambient temperature condition. The U-bend tests with thickness 13 mm as per ASTM G 30 were used to investigate the effect of surface grinding on chloride induced stress corrosion cracking (CISCC) of austenitic stainless steel 304 in a corrosive atmosphere containing sodium chloride at ambient temperature. At a high level of tensile residual stress had developed the pits on U-bend specimen surface at ambient temperature with the presence of low to high chloride concentration level. The experimental results recommend that develop a proper metallurgical fabrication criteria, specification, and procedures for pressure vessels to avoid a recurrence in future. Keywords: Surface grinding; Ambient temperature; Chloride; Stress tested by U-bend specimens at several different chloride concentrations corrosion cracking at ambient temperature. The investigation was carried out to study the effect of surface defects such as deep grooves, smearing, adhesive, Introduction scratches and indentations on stress corrosion cracking (SCC). -
Mounted Points, Cones and Plugs, Bench Grinding Wheels
Mounted points, cones and plugs, bench grinding wheels 3 3 Mounted points, cones and plugs, bench grinding wheels Table of contents General information 4 Quick product selection guide 6 Technical specifications 8 Drive spindle extensions 9 Products made to order 10 Mounted points For steel and cast steel n STEEL 11 n STEEL EDGE 13 For materials that are tough to machine n TOUGH 17 n TOOL STEEL 21 For stainless steel (INOX) n INOX 22 n INOX EDGE 23 For soft non-ferrous metals n ALU 25 For grey and nodular cast iron n CAST 26 n CAST EDGE 27 For plastics n RUBBER 29 Bench grinding wheels General information 30 n Bench wheel bushings 30 n UNIVERSAL type 31 n CARBIDE type 31 n Dressing tool 32 Cones and plugs General information 33 n Type 16 33 n Type 17 33 n Type 18 33 n Type 18R 33 Page Catalogue 2 3 Mounted points, cones and plugs, bench grinding wheels Table of contents Grinding and polishing stones General information 34 n Holders for grinding and polishing stones 34 n UNIVERSAL type 35 n CARBIDE type 35 Hand dressers n Dressing stones 36 3 Straight grinder Flexible shaft Bench grinder Manual filing tool Manual application Visit pferd.com for more information. PFERD Tools PFERD tools PFERD tools for Use on Plastics for use on stainless steel PFERD tools for use on aluminium for use on construction steel PFERDPRAXIS brochures Our PFERDPRAXIS brochures contain a wealth of useful information on material properties as well as tips and tricks for using PFERD products on specific materials or for specific applications. -
A BILL to Regulate Assault Weapons, to Ensure That the Right to Keep and Bear Arms Is Not Unlimited, and for Other Purposes
SIL17927 S.L.C. 115TH CONGRESS 1ST SESSION S. ll To regulate assault weapons, to ensure that the right to keep and bear arms is not unlimited, and for other purposes. IN THE SENATE OF THE UNITED STATES llllllllll Mrs. FEINSTEIN (for herself, Mr. BLUMENTHAL, Mr. MURPHY, Mr. SCHU- MER, Mr. DURBIN, Mrs. MURRAY, Mr. REED, Mr. CARPER, Mr. MENEN- DEZ, Mr. CARDIN, Ms. KLOBUCHAR, Mr. WHITEHOUSE, Mrs. GILLI- BRAND, Mr. FRANKEN, Mr. SCHATZ, Ms. HIRONO, Ms. WARREN, Mr. MARKEY, Mr. BOOKER, Mr. VAN HOLLEN, Ms. DUCKWORTH, and Ms. HARRIS) introduced the following bill; which was read twice and referred to the Committee on llllllllll A BILL To regulate assault weapons, to ensure that the right to keep and bear arms is not unlimited, and for other purposes. 1 Be it enacted by the Senate and House of Representa- 2 tives of the United States of America in Congress assembled, 3 SECTION 1. SHORT TITLE. 4 This Act may be cited as the ‘‘Assault Weapons Ban 5 of 2017’’. 6 SEC. 2. DEFINITIONS. 7 (a) IN GENERAL.—Section 921(a) of title 18, United 8 States Code, is amended— SIL17927 S.L.C. 2 1 (1) by inserting after paragraph (29) the fol- 2 lowing: 3 ‘‘(30) The term ‘semiautomatic pistol’ means any re- 4 peating pistol that— 5 ‘‘(A) utilizes a portion of the energy of a firing 6 cartridge to extract the fired cartridge case and 7 chamber the next round; and 8 ‘‘(B) requires a separate pull of the trigger to 9 fire each cartridge. 10 ‘‘(31) The term ‘semiautomatic shotgun’ means any 11 repeating shotgun that— 12 ‘‘(A) utilizes a portion of the energy of a firing 13 cartridge to extract the fired cartridge case and 14 chamber the next round; and 15 ‘‘(B) requires a separate pull of the trigger to 16 fire each cartridge.’’; and 17 (2) by adding at the end the following: 18 ‘‘(36) The term ‘semiautomatic assault weapon’ 19 means any of the following, regardless of country of manu- 20 facture or caliber of ammunition accepted: 21 ‘‘(A) A semiautomatic rifle that has the capac- 22 ity to accept a detachable magazine and any 1 of the 23 following: 24 ‘‘(i) A pistol grip. -
Planning Activities
International School of Tactical Medicine Student Guide Rancho Mirage, California Tactical Medicine Module A Training Support Package Student Guide Tactical Medicine Module A - Introduction We are committed to ensure that you receive the most intense and up to date tactical medical training available. Our instruction technique is based on the building block approach to training with a proven track record of success. Our tactical instructors have many years of experience as tactical commanders and operators. All physician instructors are reserve law enforcement officers, active on tactical teams, and are residency trained in emergency medicine, trauma surgery and critical care medicine. The instructors are experts in their field with experience and knowledge unlike that found anywhere else. To ensure high quality training, ISTM complies with the California Peace Officer Standards and Training (POST) and the California Emergency Medical Services Authority (EMSA) regulations and guidelines for continuing education for pre-hospital and law enforcement professionals. Finally, our faculty strictly adheres to current tactical law enforcement accepted standards and emergency medical care guidelines that conform to the civilian EMS system and the practice of emergency medicine. We promise you an outstanding academic training program that upon completion will enable you to effectively integrate with your tactical team as a tactical medical provider. We will make every effort to see that you get the most out of your 2 weeks of training and our instructors will work closely with you to help you reach your goals. It is our sincere hope that with this training you will be able to provide state of the art tactical medicine for your team and may perhaps one day save a life during a tactical operation.