AGRICULTURAL METALWORKING Agriculture Mechanization/Engineering and Technical Support Services Agricultural Metalworking (15-45 days) This unit deals with metal application in agriculture. Topics include career opportunities, metal laboratory safety, metalworking hand tools, cold metal applications, hot metal applications, sheet metal applications, metalworking power tools, metal fasteners, and forging and foundry. Objectives To acquaint students with employment information and career opportunities in agricultural metal-working To increase student awareness of classroom rules and safety procedures in the laboratory To acquaint students with metalworking hand tools common to agricultural applications To familiarize students with techniques in tool maintenance To develop student proficiency in cold metal techniques common to agricultural applications To familiarize students with metal heat treatment processes To acquaint students with types of metals commonly used in agricultural applications To familiarize students with sheet metal layouts and operations To acquaint students with operating principles of machining power tools To increase student awareness of metal forging and foundry processes Competencies At the conclusion of this unit, students will be able to explain current employment information such as job descriptions, job availability, personal and educational requirements, working conditions, opportunity for advancement, and other factors relative to potential employment in the agricultural applications of the metals industry and relate it to their personal needs and aspirations; follow classroom safety rules by demonstration of safety procedures in the laboratory; identify and properly use metalworking hand tools; identify and select common metals and types of steel used in tools, metal fabrication, and metal repair common for agricultural applications; sharpen common metal tools, such as drill bits, plane irons, auger bits, screwdrivers, and axes, according to specifications; demonstrate proper use of taps and dies; perform the five heat treating processes used in retaining or restoring desired metal properties; demonstrate metal fabrication techniques; design, layout, and perform operations on specific metal applications found in agriculture; understand power machine tool operation; perform simple equipment repairs; and understand forging and foundry processes and metals typical to agricultural applications. Subject Matter (Basic skills integration areas are shown in brackets following title.) Careers - Current and future employment needs - Job descriptions - Training requirements - Working conditions - Opportunities for advancement - Other factors Safety - Classroom and laboratory rules - Laboratory procedures - Hand and power tools - Electrical precautions - Occupational and Safety Health Act Metal tools [Mathematics] - Hand tool identification - Hand tool usage - Power tool identification Grinder Metal lathe Metal bandsaw Drill press Others Cold metal processes [Mathematics] - Metal identification - Layout tools and use - Shaping stock Cutting Drilling Filing - Tapping and threading - Fastener identification - Fastener selection Hot metal processes [Mathematics] - Heating metal - Anvil usage Drawing Cutting Upsetting Bending Punching holes Twisting - Heat treating - Tempering Soldering [Science] - Material selection - Acid core solder - Resin core solder - Soldering processes Sheet metal procedures [Mathematics] - Pattern layout - Forming Cutting Bending Rolling Seaming - Edging Wiring Turning Beading and crimping Power machine tool operation [Mathematics] - Grinder Selection Truing wheel Replacing wheel Operations - Metal lathe Specifications Components Setup Operations - Metal band saw Specifications Components Setup Operations - Drill press Specifications Components and bits Operations Forging and foundry processes [Science] - Equipment - Machine forging - Foundry processes - Casting metal identification - Sand casting procedures Motivational Activities Take a field trip to repair business facility, machine shop, or a farm. Identify purchase price of new hand tools and power tools. Display reconditioned hand tools and power tools. Invite agricultural equipment suppliers to give class presentations. View films, videotapes, and slides on unit-related topics. Learning Activities Participate in a Supervised Agricultural Experience program. Apply hand tools and power tools. Identify metal fabrication in agricultural machinery and equipment. Create bulletin board displays featuring topics related to metalworking. Complete a cold metal project, a sheet metal project, and a hot metal project. Instructional Materials Textbooks and References Agricultural Mechanics: Fundamentals and Applications by Elmer L. Cooper. Albany, NY: Delmar, 1986. Available from Hobar Publications. Exploring Metalworking by John R. Walker. South Holland, IL: Goodheart-Willcox, 1987. General Metals by John L. Feirer. 5th ed. New York: McGraw-Hill, 1980. The Making of Tools by Alexander G. Weygers. New York: Van Nostrand Reinhold, 1973. Mechanics in Agriculture by Lloyd G. Phipps. 3rd ed. Danville, IL: Interstate, 1983. Metalwork Technology and Practice by Oswald A. Ludwig and Willard J. McCarthy. 7th ed. Peoria, IL: Glenco Publishing/Bennett and McKnight, 1982. Modern Metal Working by John R. Walker. South Holland, IL: Goodheart-Willcox, 1986. Modern Welding by Andrew D. Althouse and Carl H. Turnquist. South Holland, IL: Goodheart-Willcox, 1984. Available from Hobar Publications. Recycling: Use and Repair of Tools by Alexander G. Weygers. New York: Van Nostrand Reinhold, 1978. Bulletins and Pamphlets The following are available from the Cooperative Extension Service. Care and Sharpening of Lawn and Garden Tools. A2683. How to Build a Front and Side Opening Wagon Rack for Tossed Bales. A2656. Painting Galvanized Steel Surfaces. A2487. Siding and Finishes for Original Construction or Replacement. A2486. The following are available from Vocational Agriculture Services. Cold Metal Work. U3002a. Ferrous Metals - Properties, Identification and Treatment. U3041. Hot Metal Work. U3043. Metal Roofing and Siding for Farm Structures. U3045. Micrometers and Related Measuring Tools. U3023. Safety in the Shop. U3022a. Sharpening Hand Tools. U3005. Soldering for Home, Farm and Shop. U3027. Periodicals Applied Science and Technology Index Industrial Education (formerly Industrial Arts and Vocational Education) Popular Science Computer Software The following are available from Hobar Publications. Machine Shop Review. Apple, IBM, TRS, Macintosh. Measurement and Layout Tools. Apple. Reading Inside Micrometers. Apple. Reading Outside Micrometers. Apple. Shop Projects Plan Index. Apple, IBM, TRS. Shop Tools and Equipment Inventory. Apple, IBM, TRS. Tool Safety: Shop and Laboratory Related. Apple, IBM, TRS, Macintosh. Films, Videotapes, and Slides The following is available from the Bureau of Audio Visual Instruction. Lead in Motion. 00334 (16mm film, color, 21 minutes). Bureau of Mines, 1976. The following are available from Career Aids, Inc. Machine Shop: Engine Lathe. PX928 (Six color filmstrips with cassettes and instructor's guide). Metalworking Industrial Arts Series. RM8110-S (12 filmstrips with cassettes. May be ordered individually). Precision Measuring Tools. PP328 (Four color filmstrips with cassettes and test materials. May be ordered individually). Sheet Metalwork Explained. BX507 (Seven color filmstrips with cassettes and study guide). The following are available from Vocational Agriculture Services. Drill Press - How to Use It Safely. F461 (48-frame filmstrip) Power Grinder - How to Use It Safely. F463 (48-frame filmstrip). Equipment and facilities Metal lathes and metalworking tools Metals obtained from local salvage yards and metal shops Casting and forging equipment Tools to sharpen from shops, home, and farm Equipment repair tools Drill press Grinder Metal band saw