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Agriculture, Food, and Natural Resources, Grade 9 - 12, Introduction to Metal Fabrication, 2009

1.) Identify careers available in metal fabrication.

2.) Describe the history of metal fabrication and its impact on the industry.

Examples: history—blacksmithing, oxyfuel development, arc welding, metal inert gas MIG) welding, tungsten inert gas (TIG) welding

- impact—automated systems making jobs obsolete, reduction in number of orkers in job market

3.) Demonstrate safety procedures used in the metal fabrication industry.

4.) Explain the uses of metal fabrication tools and equipment.

Examples: tools—hacksaw, cold chisel, file, drill, chipping hammer, metal vise grips, , grinder, striker, tip cleaner, wire brush, tongs

- equipment—welding helmet, fuel valves, oxyfuel torches

5.) Differentiate among types of metal used in metal fabrication.

Examples: iron, aluminum, steel, tin, titanium, copper, magnesium, chromium, zinc

6.) Demonstrate techniques for preparing metal for fabrication.

Examples: stripping, cleaning, grinding, buffing

7.) Prepare an oxyfuel unit for operation.

•  Explaining color-coding of oxyfuel tanks and hoses
Examples: green for oxygen, orange or black for acetylene

•  Comparing shaded lenses used in oxyfuel welding and cutting
•  Checking for cracks and leaks in oxyfuel hoses and regulators
8.) Use an oxyfuel torch, including adjusting the flame to neutral and cutting and fusing metal.

9.) Demonstrate procedures for using plasma arc cutting equipment.

•  Describing the plasma arc cutting process
•  Identifying components of plasma arc cutting equipment
•  Cutting metal with a plasma arc cutter
10.) Analyze weld imperfections to determine corrective measures.

11.) Compare destructive and non-destructive weld testing methods.

12.) Explain the SMAW process.

•  Comparing various types of welding electrodes used in SMAW
Examples: E6010, E6013, E7014

13.) Demonstrate procedures for adjusting and operating the SMAW machine.

•  Identifying various types of weld joints
Examples: butt, lap, corner, T

•  Contrasting methods of striking an arc
Examples: scratching, tapping, weaving

•  Identifying types of welds
Examples: stringer, overlap, fillet

•  Demonstrating techniques for flat, vertical, horizontal, and overhead welding
14.) Cut threads in metal using a tap.

15.) Cut metal threads using a die.

16.) Explain the process of laying out and cutting sheet metal.

17.) Demonstrate the use of rivets in sheet metal assembly.

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