TC 9-237 — Operator`s Circular Welding Theory And Application
TC 9-237 governs welding theory and application, including metal joining, welding processes, equipment, materials, and safety.
- Publication number: TC 9-237
- Title: OPERATOR`S CIRCULAR WELDING THEORY AND APPLICATION
- Date: 05/07/1993
- Proponent: USAOC&S
- Status: ACTIVE
View TC 9-237 on armypubs.army.mil
It covers welding and cutting operations, brazing and soldering, metals identification, electrodes and filler metals, testing, and maintenance welding for military equipment. It requires welding workers to strictly observe listed safety precautions and operators to wear protective equipment during welding operations.
Applies to: This training circular is published for use by personnel concerned with welding and other metal joining operations in the manufacture and maintenance of materiel.
Topics covered
- Welding safety precautions
- Welding and cutting equipment
- Metals identification
- Electrodes and filler metals
- Arc welding processes
- Oxygen fuel gas welding processes
- Maintenance welding operations
- Destructive and nondestructive testing
Questions and answers
What protective equipment is required during welding operations?
Protective clothing and equipment must be worn during all welding operations. (paragraph 2-2)
What should be followed when using a specific direct current arc welding electrode?
The manufacturer's recommendations should be followed when a specific type of electrode is being used. (paragraph 2-2)
What electrodes should be used to prevent underbead cracking in high yield strength, low alloy structural steels?
Hydrogen is the number one enemy of sound welds in alloy steels; therefore, use only low hydrogen (MIL-E-18038 or MIL-E-22200/1) electrodes to prevent underbead cracking. (paragraph 7-15)
What is the purpose of shielding gas in flux-cored arc welding?
The purpose of the shielding gas is to provide protection from the atmosphere to the arc and molten weld puddle. (paragraph 10-12)