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Career & Technical Education IT72 – Welding II

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Course #: IT72 Grade Level: 9-12 Course Name: Welding II Level of Difficulty: Average Prerequisites: None # of Credits: 2 semesters – 1 credit

The following is a Career and Technical Education (CTE) class under the Welding Program.

Welding Units and Understanding Statements

Unit 1: Safety No State Standards are available; district materials will be utilized. There will be one week of general safety education, plus additional safety education for specific processes as they are covered during this course.

Students will understand the importance of a safe and secure work environment in a welding shop.

Unit 2: Measurement and Layout

Students will understand and apply advanced measurement skills including area and volume calculations.

Unit 3: Oxy-Fuel Cutting (OFC)

Students will understand appropriate cutting equipment and techniques for all types of metals.

Unit 4: Equipment and Tools

Students will understand the proper use of hand and power tools, and the welding equipment used for the processes taught in the scope of this class.

Unit 5: Shielded Metal Arc Welding (SMAW)

Students will make SMAW weldments with mild steel.

Unit 6: Oxy-fuel Welding (OFW)

Students will make OFW weldments with mild steel.

Unit 7: Gas Metal Arc Welding (GMAW)

Students will make GMAW weldments with mild steel.

Unit 8: Gas Tungsten Arc Welding (GTAW)

Students will make GTAW weldments with mild steel and aluminum.

Unit 9: Flux Cored Arc Welding (FCAW)

Students will make FCAW weldments with mild steel and aluminum.

Unit 10: Weldment Testing

Students will make weldments in each process suitable for physical testing purposes.

Board Approved – December 9, 2014

Arizona Department of Education - Career and Technical Education Standards Arizona’s College and Career Ready Standards – ELA Technical Subjects IT72 – Welding II


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AZ COLLEGE AND CAREER READY ENGLISH LANGUAGE ARTS CONNECTIONS

The following Reading and Speaking and Listening AZ College and Career Ready Standards are integrated as applicable in this course:

Reading: Key Ideas and Details Standard 1: Cite specific textual* evidence to support analysis of science and technical texts, attending to the precise details of explanations or descriptions. Standard 3: Follow precisely a complex multistep procedure when carrying out experiments, taking measurements, or performing technical tasks attending to

special cases or exceptions defined in the text. Craft and Structure Standard 4: Determine the meaning of symbols, key terms, and other domain-specific words and phrases as they are used in specific scientific or technical

context relevant to grade specific text and topics. Standard 5: Analyze the structure of the relationships among concepts in a text, including relationships among key terms. Integration of Knowledge and Ideas Standard 9: Compare and contrast findings presented in a text to those from other sources (including their own experiments), noting when the findings support

or contradict previous explanations or accounts. Speaking and Listening: Comprehension and Collaboration Standard 1: Initiate and participate effectively in a range of collaborative discussions (one-on-one, in groups, and teacher-led) with diverse partners on grade-

level topics, texts, and issues, building on others’ ideas and expressing their own clearly and persuasively.




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IT72 Welding II Processes - Suggested Teaching Timeline

First Semester Second Semester

August Sept. Oct. Nov. Dec. Jan. Feb. March April May

Unit 1: Safety

1 week


2.2 weeks

Unit 3: Oxy-fuel Cutting (OFC)

2.2 weeks


1.2 weeks


8 weeks

3.2 weeks

3.8 weeks


2.8 weeks


4 weeks


4 weeks

3.4 weeks

Unit 9: Flux Cored Arc Welding (FCAW)

4 weeks

2. 4 weeks

Unit 10:Weldment Testing

1 week




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Unit 1: Safety

Students will understand the importance of a safe and secure work environment in a welding shop. Knowledge and Skills Arizona CTE Standards Resources

Knowledge:

Proper procedures of equipment operations

Job site hazards in welding

PPE (Personal Protective Equipment) Skills:

Develop personal daily safety habits

Select and wear appropriate PPE (Personal Protective Equipment) for different welding processes and tasks

Analyze and choose appropriate safety procedures with all tools and equipment

Differentiate between which safety procedures are applicable at all times and which are used only for specific processes and tasks

There are no CTE Arizona State Standards available related to welding safety, so MPS district guidelines will be utilized.

District safety study guides and assessments

Computer lab and software

Safety demos in lab as appropriate




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Students will understand and apply advanced measurement skills including area and volume calculations. Knowledge and Skills Arizona CTE Standards Resources

Knowledge:

How to read a ruler and understand fractions

How to add, subtract, multiply and divide fractions and whole numbers

Uses for fit up tools (triangle, square, tape measure, protractor, compass)

Calculation of area for different shapes and solids

How to interpret welding print symbols Skills:

Demonstrate how to measure within 16th of an inch

Add and subtract mixed numbers including fractions

Safely utilize fit up tools (triangle, square, tape measure, protractor, compass)

Calculate area and volume for various shapes and solids

Calculate best possible efficiency for materials layout

Interpret welding print symbols on drawings

Produce a simple drawing incorporating welding print symbols

1.0 Layout and fit up project from blueprints 1.1 Interpret drawings, symbols and procedures 1.2 Use measuring devices 1.3 Lay out projects from blueprints 1.4 Measure and cut materials

Teacher generated assessments

Computer lab and software

Triangle, square, tape measure, protractor, compass soapstone

Steel

Sample welding prints

Print symbols study materials, i.e. Symbols for Welding from the Hobart Institute of Welding Technology or Welding Print Reading from Goodheart-Willcox




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Unit 3: Oxy-fuel Cutting (OFC)

Students will understand appropriate cutting equipment and techniques for all types of metals. Knowledge and Skills Arizona CTE Standards Resources

Knowledge:

The components of the following cutting equipment o Oxy-fuel o Plasma arc o Semi-automatic

Skills:

Demonstrate safe and proper setup, use and shut down of the following cutting equipment o Oxy-fuel o Plasma arc o Semi-automatic

2.0 Set up and use cutting equipment

2.1 Set up and use oxy-fuel equipment 2.2 Set and use plasma arc cutting equipment 2.4 Set up and use semi-automatic cutting

equipment

Measurement and layout tools

Identify the following cutting equipment o Oxy-fuel o Plasma arc o Semi-Automatic

Safety study guides and assessments

Steel




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Students will understand the proper use of hand and power tools, and the welding equipment used for the processes taught in the scope of this class.

Knowledge and Skills Arizona CTE Standards Resources Knowledge:

The safe and proper use of all hand and power tools used in this course

Skills:

Demonstrate safe and proper use of hand and power tools as noted in the Arizona CTE Standards column for this unit

8.0 Use auxiliary equipment and tools 8.1 Use power saw/abrasive wheel to cut material 8.2 Use power equipment to wire brush metal 8.3 Use multi-purpose shear and punch 8.4 Use metal brake 8.5 Use metal roller 8.6 Use drilling equipment

Teacher assessments

Abrasive cut-off saw

Angle Grinder

Wire wheel

Multi-purpose shear and punch

Drill press and power drills

Band saws




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Students will make SMAW weldments with mild steel. Knowledge and Skills Arizona CTE Standards Resources

Knowledge:

Components of SMAW equipment

The safe, proper set up and use of Shielded Metal Arc Welding equipment

Proper amperage for different size and types of electrodes, materials and positions

Skills:

Select proper amperage for different size and types of electrodes, materials and positions

Safely produce the following acceptable welds:

2F (flat fillet), 3F (vertical up fillet) and 4F (overhead fillet) with 6010 and 7018 electrodes

3G (vertical up groove) with 1/8” 7018 on 3/8” w/consumable backing plate (D1.1 structural certification)*

Safely produce a surface build up on 2 x 6 weld plate

Explain the American Welding Society (AWS) numbering system for SMAW welding electrodes

*D1.1 is the AWS structural welding code manual for steel.

1.0 Layout and fit up project from blueprints 1.5 Tack materials into position for welding

3.0 Set up and use shielded metal arc welding (SMAW) equipment

3.1 Set up SMAW equipment 3.2 Identify and use types, storage, and handling of

electrodes 3.3 Make fillet weld (all positions) on carbon steel in flat position (all positions not required for S.E.N.S.E.)* 3.4 Make fillet weld (all positions) on carbon steel in

flat position 3.5 Hard face and build up steel surface with SMAW equipment

*Schools Excelling through National Skills Standards Education

Teacher made common assessments

SMAW equipment

Steel and welding rod




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Students will make OFW weldments with mild steel. Knowledge and Skills Arizona CTE Standards Resources

Knowledge:

The components of oxy-fuel welding equipment

How to set up oxy-fuel welding equipment Skills:

Demonstrate safe and proper setup, use and shut down of oxy-fuel welding equipment

Safely complete an acceptable weld bead, open butt joint, corner joint and 2F (horizontal fillet)


5.0 Set up and use oxy-fuel equipment 5.1 Set up oxy-fuel equipment to industry standards

5.2 Weld carbon steels flat position

Teacher assessments

Measurement tools and layout tools

Oxy-fuel welding equipment

Steel

Safety assessment




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Students will make GMAW weldments with mild steel. Knowledge and Skills Arizona CTE Standards Resources

Knowledge:

Components of GMAW equipment

The safe, proper set up and use of Gas Metal Arc Welding equipment

Proper voltage for different types, size of electrode wire and positions

Proper application of different wire types and sizes

Skills:

Set up GMAW equipment

Safely produce an acceptable weld bead in the 2F (horizontal fillet), 3F (vertical up fillet) and 4F (overhead fillet weld) positions

Safely produce a 3G (vertical up groove) position with .035” ER70S wire on 3/8” w/consumable backing plate (D1.1 structural certification)

Prep and produce a T-joint weld on square tubing and saddle joint weld on round tubing

Explain maintenance procedures for GMAW equipment


4.0 Set up and use Gas Metal Arc Welding (GMAW) equipment (MIG)

4.1 Set up GMAW equipment 4.4 Make flat and horizontal fillet welds on carbon

steel 4.5 Perform routine maintenance on GMAW wire

feed assembly


GMAW equipment

Steel and welding wire




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Students will make GTAW weldments with mild steel and aluminum. Knowledge and Skills Arizona CTE Standards Resources

Knowledge:

Components of GTAW equipment

The safe, proper set up and use of Gas Tungsten Arc Welding equipment

Proper amperage for different size of tungsten, filler wire and positions

Technique for pointing tungsten Skills:

Safely produce an acceptable weld bead open butt joint and 2F (horizontal fillet) joint in aluminum, and carbon steel

Safely grind on tungsten electrodes, resulting in the proper point for each GTAW process

6.0 Set up and use gas tungsten arc welding (GTAW) equipment (TIG)

6.1 Set up GTAW equipment 6.2 Identify and use types and handling of filler

material 6.3 Select and use gases appropriately 6.4 Weld aluminum 6.6 Weld carbon steels

Note: Measurement criterion 6.5 is omitted because it requires the welding of stainless steel. This process is not permitted at the high school level due to the production of hexavalent chromium fumes which are extremely hazardous and must not be ingested.

Teacher assessments

GTAW equipment

Steel, aluminum and appropriate filler rod




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Unit 9: Flux Cored Arc Welding (FCAW) Students will make FCAW weldments with mild steel and aluminum.


Components of FCAW equipment

The safe, proper set up and use of Flux Core Arc Welding equipment

Proper voltage for different type and size of electrode wire and positions

Skills:

Select proper voltage for different type and size of electrode wire and positions

Safely produce an acceptable weld bead, 2F (horizontal fillet), 3F (vertical up fillet) and 4F (overhead fillet) welds

Explain maintenance procedures for GTAW equipment

7.0 Set up and use flux cored arc welding (FCAW)

equipment 7.1 Set up FCAW equipment 7.2 Identify and use types, storage, and handling of

filler material 7.3 Make fillet welds (all positions) on carbon steel 7.4 Perform maintenance on FCAW wire feed

assembly


FCAW equipment

Steel and welding wire




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Unit 10: Weldment Testing Students will make weldments in each process suitable for physical testing purposes.


The processes of destructive and nondestructive testing of weldments

Skills:

Identify the use of nondestructive weldment testing tools and equipment

Demonstrate and evaluate the results of a destructive test on a completed weld sample

9.0 Perform weldment testing 9.1 Describe nondestructive test 9.2 Perform destructive test

Welding, cutting and polishing equipment

Hydraulic press and bend testing fixtures

Nondestructive testing teaching aids



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