Lesson 1 – Shop Math and Measurement
Fractions; Common fractions; Reducing common fractions; Improper fractions; Mixed numbers; Calculations involving common fractions; Shortcuts for working with common fractions; Decimal fractions; Calculations involving decimal fractions; Converting common fractions to decimal fractions; Converting decimal fractions to common fractions; Standard rules and tape measures; Reading a rule or tape measure; Using a calculator
Learning Objectives:– Define and identify common fractions and decimal fractions.
– Define the term equivalent fraction.
– Perform calculations using common fractions and decimal fractions.
– Convert between common fractions and decimal fractions.
– Read and perform measurements using a standard rule or tape measure.
– Explain the use of calculators in welding
Lesson 2 – Introduction to Blueprints
Purpose of blueprints; Types of blueprints; Making blueprints; Parts of a blueprint; Body; Title block; Bill of material; Revision block; Zoning; Security; Care and handling of blueprints
Learning Objectives:– Explain the importance of information on blueprints.
– Explain the differences between assembly drawings and detail drawings.
– Describe methods used to create and reproduce blueprints.
– Define and describe parts of a blueprint.
– Identify elements located within the title block of a detail drawing.
– List methods of care and security of blueprints.
Lesson 3 – Lines and Views on Blueprints
Lines used on a blueprint; Views on a blueprint; Perspective; Orthographic projections; Oblique projections; Isometric projections; Other views; Selecting views; Sketching
Learning Objectives:– Identify the standard lines used on blueprints.
– Explain the meaning and applications of standard lines on blueprints.
– Identify common views used on a blueprint.
– Name the advantages and disadvantages of various projection types.
– Explain the concept of visualization.
Lesson 4 – Welds and Weld Joints
Basic weld joints; Butt joint; Lap joint; Tee joint; Corner joint; Edge joint; Weld types; Groove welds; Fillet welds; Plug and slot welds; Spot and seam welds; Stud welds; Surface welds; Backing welds; Welding positions and locations
Learning Objectives:– Identify and describe the five basic weld joints.
– Define the following terms: bead, stringer bead, weave bead, base metal, filler metal, root pass, hot pass, fill pass, cap, hardfacing.
– Identify and describe the basic weld types.
– Name the basic welding positions and give advantages of the flat position.
Lesson 5 – Welding Symbols
Structure of welding symbols; Reference line; Arrow; Weld symbol; Dimensions; Special symbols; Tail; Reading welding symbols
Learning Objectives:– Identify which side of a structure a weld is to be made from.
– Identify the kind of chamfer to be cut on a joint to be welded, and which part is to be chamfered.
– State the required dimensions of a weld.
– Identify the contour required on a finished weld.
– State how a weld contour is to be finished.
– Differentiate between welds that are to be made at the site of final assembly and welds that are to be made before the parts are shipped to the site.
Lesson 6 – Advanced Shop Math and Measurement
Squares and square roots; Angles; Triangles; Circles; Linear measurement; Calipers; Slide calipers; Vernier calipers; Micrometer calipers; Angular measurement; Metric measurement
Learning Objectives:– Explain the concepts of squares and square roots of numbers.
– Define the following kinds of angles: zero degree, acute, straight, right, and obtuse.
– State the Pythagorean Theorem and explain its usefulness.
– Define the following terms related to circles: radius, diameter, arc, and circumference.
– Give the equations for finding a circle’s circumference and area if you know its radius.
– Explain the use of the following measuring tools: calipers, micrometers, and protractors.
– Demonstrate how to convert measurements from inches to millimeters and from millimeters to inches.