- - AGRICULTURE CORE CURRICULUM - -

(CLF2000) Advanced Core Cluster: AGRICULTURE MECHANICS

 (CLF2350)  Unit Title: METALWORKING

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 (CLF2352)  Topic: Identification and Use of        Time        Year(s)
                    Basic Metalworking Tools       1 Hour  1 / 2 / 3 / 4
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          Topic Objective:  Upon completion of this lesson the student
                             will be able to:

          Learning Outcome #

             (H-2) - Identify ten common metalworking tools by type and 
                       use.

          Special Materials and Equipment: Scratch awls, metal snips, 
                       ball-peen hammers, hack saws, files, electric power
                       hand drill, drill press, taps and dies, pedestal 
                       grinder, electric soldering iron

          References: Burke, Stanley R., & Wakeman, T. J. (1990). MODERN
                         AGRICULTURAL MECHANICS (2nd ed.). Danville, IL:
                         Interstate Publishers.
                       Phipps, Lloyd J., & Reynolds, Carl L. (1990).
                         MECHANICS IN AGRICULTURE (4th ed.). Danville, IL:
                         Interstate Publishers.
                       Editors of Reader's Digest. (1973). COMPLETE DO-IT-
                         YOURSELF MANUAL  (7th ed.). Pleasantville, NY: 
                         Reader's Digest Association.

          Evaluation: Quiz by instructor and evaluation of student 
                       participation in discussion.

TOPIC PRESENTATION: Identification and Use of Basic Metalworking Tools 

A. Identification and Use of Metalworking Tools

   1. Scratch Awl (Scribe) - hardened steel rod with a sharpened point that 
       enables user to make marks on metal.

   2. Metal Snips - hand-held pliers-like tool used for cutting sheet 
       metals. Jaws are non-gripping to allow easy release.

   3. Ball-peen Hammer - a hammer consisting of two ends, the ball end and 
       the face end. The ball end is used for shaping round edges such as 
       rivet heads, while the face end is used for square work.
   4. Hacksaw - hand-held saw with a replaceable blade. The blade should 
       be attached with the teeth facing forward to allow for cutting on the 
       downstroke (forestroke) only. The hacksaw is used for cutting all 
       types of thin metals such as round stock, pipes, tubing, and bar 
       stock.

   5. File - a hand-held piece of hardened steel of various shapes and 
       sizes. Files have a heel end which contains the handle and a point 
       end. They are designed to be held at both ends and moved lengthwise 
       over the work.

   6. Electric Powered Hand Drill - a hand-held drill motor capable of 
       holding a drill bit. The hand drill is used to drill holes in work 
       that otherwise cannot be carried to a drill press.

   7. Drill Press - a mounted drill used for precision drilling of smaller 
       portable objects. The desired location for a hole is marked and 
       center punched. Holes is drilled at appropriate diameter and depth.

   8. Taps and Dies - hardened steel tools used to make inside and outside 
       threads. Taps are designed for inner threads or nuts and other holes.
       Dies are made for outside threads on bolts and other round stock. A 
       hole is pre-drilled for the proper the size tap. Round stock is 
       beveled prior using the die.

   9. Pedestal Grinders (bench grinder) - consists of electric motor and 
       spinning stone. Work can be carried to grinder and manipulated for 
       desired outcome.

  10. Electric Soldering Iron - consists of a handle and soldering lead.
       Used for waterproofing corners of sheet metal projects by applying 
       quick hardening solder.

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         ACTIVITY: 

         1. Have students demonstrate the proper and safe use of each 
             of the ten tools listed above.

         2. Design a project which utilizes at least five of the tools 
             mentioned in this lesson.
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7/17/91 YNJ/CC/tf


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