Qualified welders are needed in different branches of metal and building industries, as well as in pipelines, automotive, aircraft – and shipbuilding industries. Simply stated, welding is a process of permanently joining materials (usually metals) through localized coalescence resulting from suitable combination of temperature, pressure and metallurgical conditions. Depending upon the combination of temperature and pressure from a high temperature with no pressure to a high pressure with low temperature, a wide range of welding processes have been developed. Various welding processes differ in the manner in which temperature and pressure are combined and can be classified as gas welding, arc welding, resistance welding, solid state welding, thermo-chemical welding and radiant energy welding. Out of these types, gas welding and arc welding are the two most common methods employed in industry.
This 6-hour welding course provides the student with the basic understanding of the theory, principles, methods, and techniques related to modern arc welding. This course is aimed at civil, mechanical, structural and process engineers, facility managers, H & S professionals, environmentalists, energy auditors and anyone who wants a basic understanding of welding principles.
The reader must take a multiple-choice quiz consisting of thirty five (35) questions at the end of this course to obtain PDH credits.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:
- Name and describe the four basic types of arc welding processes and tell what factors influence their selection
- Explain how the SMAW, GMAW, GTAW and SAW techniques work
- How to properly select the shielding gases in arc welding operations
- Understand the technical vocabulary of welding as applicable to different types of joints and welds
- Define the heat-affected zone and tell what changes can occur there during welding
- Describe the effects of uneven or rapid heating and cooling on base metals and weld beads
- Explain the benefit of preheating and when it should be used
- List the factors affecting the quality of welded connections
- Understand the importance of welding procedures
- Describe effective cross-checking and NDE techniques
- Understand how to interpret welding drawing, lines, dimensions, symbols and notes to communicate ideas on paper
- Describe the personal protective equipment necessary for welding
Click on the following link to the PDF document to review the course material before taking the quiz for credit.
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