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DOCUMENT RESUMEED 097 494TITLEINSTITUTIONPUB DATENOTEEDRS PRICEDESCRIPTORSIDENTIFIERSCE 002 262Aircraft Sheet Metal Practices, Blueprint Reading,Sheet Metal Forming and Heat Treating; Sheet MetalWork 2: 9855.04.Dade County Public Schools, Miami, Fla.Feb 7417p.; An Authorized Course of Instruction for theQuinmester ProgramMF- 0.75 HC- 1.50 PLUS POSTAGECourse Content; Course Objectives; *CurriculumGuides; *Metal Working Occupations; Post SecondaryEducation; Secondary Grades; *Sheet Metal Work;*Trade and Industrial Education; VocationalEducationFlorida; *Quinmester ProgramABSTRACTThis course is designed to familiarize vocationalstudents with construction in sheet metal layout. The documentoutlines goals, specific block objectives, layout practices,blueprint reading, sheet metal forming (by hand and by machine), andheat treatment of metals, and includes posttest samples. Layouttechniques and air foil developing are emphasized. A bibliography isappended. (NH)

BEST COPY AVAILABLEAUTHORIZED COURSE OF INSTRUCTION FOR THEU.S. DEPARTMENT OF HEALTH,EDUCATION & WELFARENATIONAL INSTITUTE OFTHIS DOCUMENT HAS BEEN REPRODUCED EXACTLY AS RECEIVED FROMTHE PERSON OR ORGANIZATION ORIGINATING IT POINTS OF VIEW OR OPINIONSSTATED DO NOT NECESSARILY REPRESENT OFFICIAL NATIONAL INSTITUTE OFEDUCATION POsi ?ION OR POLICYCourse OutlinerrsOSHEET METAL. WORK 2(Aircraft Sheet Metal Practices,Blueprint Reading, Sheet LetalForming and Heat Treating)Department 48nuin 9855.04r" C'D.HDIVISION OF INSTRUCTION1914oqi!

BEST COPY AVAILABLEDADE COUTY PUBLIC SCHOOLS1450NORTHEAST SECOND AVENUEMIAMI, FLORIDA 33132.Course OutSHEET METAL WORK 2(Aircraft Sheet Metal Layout Practices, BlueprintSheet Metal Forming and Heat Treating)Department A8 -Quin 8855.04county office ofVnGATIONAL AND ADULT EDUCATIONReading,

THE SCHOOL BOARD OF DADE COUNTY.Mr. G. Holmes Braddock, ChairmanMr. William H. Turner, ViceChairmanMrs. Ethel BeckhamMr. Alfredo G. DuranMrs, Phyllis MillerMr. Robert RenickDr. Ben SheppardDr. E. L. Whigham, Superintendent of SchoolsDade County Public SchoolsMiami, Florida 33132February, 1974Published by the School Board of Dade County

Course Description9855State CategoryNumber48County Dept.,Number9855.04County CourseNumberAircraft Sheet Metal Layout Practice, Blueprint Reading SheetMetal Pormin and Heat TrellintCourse TitleThe objective of this quip course is to familiarize the vocational student withconstruction in sheet metal layout using parallel line, radial line, and triangulation developments. Emphasis will be placed on the use of layout techniquesand air foil developing. The manufacture of parts and the heat treating ofmetals will also receive great emphasis.Prior to entry into this course, the vocational studentIndicators of Success:will display mastery of the skills indicated in Aircraft Assembly, Riveting andSurface Repair II (9855.03).Clock Hours:135

PREFACEBEST COPY AVAILABLEThe following outline is for a fourth quinmester course.Priorto entry into this course, the student must display mastery of theskills indicated in Aircraft Assenbly, Riveting and 94rface Repair II(9855.03).This course will serve as a guide to the student who wishes topursue the field of sheet metal work - intermediate.It is composedof. five blocks of instruction which are subdivided into several unitseach, requiring one quinmester of 135 hours.In presenting the material outlined in this course, the instructoruses the lecture and demonstration methods with emphasis on the. use ofvisual aids, mock -ups, cutaways, transparencies, films and manipulativeshop practice.No basic textbook is required for the course, however, the bibliography which appears on the last pages of the outline lists the referencebooks, manuals and other materials that are used throughout the courseby both the student and the instructor.This outline was developed through the cooperative efforts of theinstructional and supervisory personnel, the Quinmester Advisory Committee, and Vocational Curriculum Materials Service, and has been approvedby the Dade County Vocational Curriculum Committee.

BEST COPY AVAILABLETABLE OF CONTENTSWith Suggested Hourly BreakdownPageiPREFACEGOALSSPECIFIC BLOCK OUT ,PRACTICES (60 Hours)Laying Out Flat PatternsLaying Out Irregular PatternsUsing Templates for Layout'Laying Out Airfoils.1BLUEPRINT READING (30 Hours)Shop SketchingBlueprint Reading Techniques1SHEET METAL FORMING (30 Hours)Forming by Hand MethodsForming by Machine MethodsIHEAT TREATMENT OF METALS OS Hours)Heat Treating Aluminum rartsHeat Treatment of Steel1222OUINMESTER POSTTESTAPPENDIX:OUINMESTER POSTTEST SAMPLE1. i7

GOALSThe student must be able to display:1.The skills and knowledge necessary to do sheet metal layout.2.The ability to read and understand blueprints.3.The ability to perform hand and machine forming.4.Techniques used in heat treating methods.5.The ability to assume the responsibility inherent in the sheet metaltechnician occupation.iii

SPECIFIC BLOCK OBJECTIVESBLOCK I - LAYOUT PRACTICESThe student must be able to:1.2.3.Demonstrate the ability to layout flat and irregular patterns ofthe sheet metal trade.Exhibit the ability of using templates for layout.Demonstrate the ability to layout an air foil.BLOCK II - BLUEPRINT READINGThe student must be able to:1.2.Exhibit the ability to do sheet metal shop sketching.Exhibit the skills and ability to interpret all types ofblueprints.BLOCK III - SHEET METAL FORMINGThe student must be able to:1.2.3.Demonstrate metal forming by hand.Exhibit the ability to do metal forming by machine process.State the methods of annealing work hardened aluminum.BLOCK IV - HEAT TREATMENT OF METALSThe student must be able to:1.2.3.State the reasons for heat treating steel and aluminum parts.Demonstrate the ability to perform simple heat treating processes.Explain several methods of aging metals.BLOCK V - QUINMESTER POSTTESTThe student must be able to1.Satisfactorily complete the quinmester posttest.

Course OutlineINTERMEDIATESHEET METAL WORK(Aircraft Sheet Metal Layout Practices, Blueprint Reading,Sheet Metal Forming and Heat Treating)Department 48I.LAYOUT PRACTICESA.Laying Out Flat Patterns1.2.3.II.III.Quin 9855.04Bend lines and relief holesAnglesCurvesB.Laying Out Irregular PatternsIntersections1.Tapering sections2.Transition pieces3.C.Using Templates for LayoutLaying out templates1.Trimming out templates2.Using template to lay out parts3.D.Laying Out AirfoilsDeveloping from table of ordinates1.Developing from duplicate parts2.Developing by use of templates3.BLUEPRINT READINGA.Shop SketchingAlphabet of lines1.Oblique sketches2.Dimension of sketches3.Orthographic projection4.B.Blueprint Reading TechniquesTechniques of showing hidden edges of components1.Techniques of showing hidden areas of aircraft2.Reading title blocks3.Reading symbols4.SHEET METAL FORMINGA.Forming by Hand MethodsInterpreting drawings and specifications1.Securing information from original or template2.Selecting and preparing metal for new part3.Forming and shaping part by using4.A malleta.Forming hammersb.

C.d.e.f.g.h.B.IV.V.DolliesWood form blockSandbagShrinking blockV blockStakesForming by Machine MethodsSecuring information from drawings template or original part1.Laying out new part2.Fabricating new part3.Shaping new part by using4.Forming rolla.Bending brakeb.Power hammerc.ERCO formerd.Bending machinee.Shrinkerf.Stretcherg.HEAT TREATMENT OF METALSA.Heat Treating Aluminum PartsHardening aluminum in the heat treat furnace1.Quenching heat treated parts2.Straightening warped areas in heat treated parts3.Aging heat treated parts4.B.Heat Treatment of SteelHeat treating steel1.Annealing steel2.Normalizing steel.3.Case hardening steel4.Quenching steel after heat treating5.QUINMESTER POSTTEST.2.

BIBLIOGRAPHY(Aircraft Sheet Metal Layout Practices, Blueprint Reading,Sheet Metal Forming and Heat Treating)Basic References:NoneSupplementary References:Aircraft Template Developments.Inc., 1942. Pp. 306.1.2.3.4.5.Los Angeles:Aero Publishers,U.S. Federal Aviation Agency. Airframe and Power Plant Meehanics Airframe Handbook AC-65-15. Washington, D.C.: U.S.Government Printing Office, 1972. Pp. 538.Airframe and Power Plant Mechanics General Handbook AC-65-9.Washington, D.C.: U.S. Government Printing Office, 1970.Pp. 497.Salt Lake City, Utah:Forming Manual.Pp. 278.Education, 1942.State Board of VocationalDept. of the Army.Fundamentals of Airframe Maintenance.U.S. Government Printing Office, 1965.ington, D.D.:Pp. 431.Albany, New York:Wash-Delmar Publishers, Inc.,6.Hand Process Handbook.Pp. 146.1946.7.Hayes, 3. T. p IdBlt.g lszri,t LxShoSketchinatltReadinMadeEas.Pp. 148.Cincinnati: Technology Text Book Company, 1951.8.Ma, chine Process Handbook.Pp. 86.Inc., 1946.9.10.Albany, New York:Measurement, and Layout. Albany, New York:Pp. 89.Inc., 1946.U.SAir Force.Washington,Pp. 314.Delmar PublishersDelmar Publishers,Airframe Maintenance Air Force Manual 1.DIElmg Aluminum.16 mm.20 min.-3-B/W.Sound.n.d.Alcoa.

APPENDIXQuinmester Post-Test Sample

QUINMESTER POSTTESTDateNameScoreMultiple Chairs,Test, ItemsEach statement needs a word, a figure, or a phrase to make it correct.Only one of the choices listed is correct. Place the letter of the choiceyou make in the space provided at the left edge of the sheet.1.In general "layout" can be divided into how many methods:a. TwoThreeb.Onec.d.FourMMOSIPINpels2.The method used in "layout" depends on:a.b.c.d.111013.11001111When laying out cylindrically shaped jobs, the length of thepattern must be found. This can be done by:a.b.c.d.4.111.11.104.b.c.d.Edges and gussetsEdges and seamsStretchout takes all allowances in considerationLaps and cut outsThe length of the stretchout of a square job is equal to:a.b.c.d.6.ComputationUsing tablesUsing circumference ruleAll of the aboveIn "layout," after the size of the stretchout is found you mustallow for:a.5.Thickness of paperWidth of paperType of jobAll of the aboveSum(4)SumOneof the sidestimes the length of one sideof one side times (2)and twoThe circumference of a circle is equal to 3.1416 times the:a.b.c.d.DiameterWidthHeightNone of the above

7.Jobs that have the opposite sizes parallel (such as square,rectangular, and cylindrical shapes), and cut at an angle, mustbe laid out on a flat surface by the:Triangulation methodRadial line methodParallel line methodSimple layout methoda.b.c.d.8.The riveted lap seam is:a,b.c.d.9.Weaker than soldered lap seamStronger than soldered lap seamEqual to soldered lap seamNever usedWhen laying out sheet metal jobs, which view is generally drawnfirst?a.b.c.d.10.Jobs with sides tapered must be laid out by what method?a.b.c.d.WINSwww11.Simple layoutParallelRadial line and triangulationPatternif a blueprint indicates that the scale is one inch equals twoinches, each line of the print is shown as:a.b.c.d.12.Front viewTop viewSide viewBottom viewOne-half its actual lengthTwice its actual lengthThe same as its actual lengthOne-half its actual thicknessin order to make a blueprint from a drawing, it is necessary tomake:a.b.c.d.13.AAAAtransparencycarbon copytracingxerox copyWhich one of the following rules is observed in order to preservea in a well-lighted roompermanently moistenedin a dark, dry locationin a well-ventilated location.8«