2. SMAW-Groove Welds with Backing
Upon completion of this module, the trainee will be able to do the following:
1. Identify and explain groove welds.
2. Identify and explain groove welds with backing.
3. Set up shielded metal arc welding (SMAW) equipment for making V-groove
welds.
4. Perform SMAW for V-groove welds with backing in the following positions:
• Flat (1G)
• Horizontal (2G)
• Vertical (3G)
• Overhead (4G)
Course Aims and Objectives
2
4. 4
•Welding can be safe when sufficient
measures are taken to protect yourself and
others from potential hazards
•Students should read and understand the
following before welding:
– Warning Labels
– Material Safety Data Sheets (MSDS)
Arc Welding Safety
5. SMAW-Groove Welds with Backing
• Under the supervision of the instructor, the trainee should be able to:
• 1. Set up arc welding equipment for making groove welds.
• 2. Make flat welds with backing on V-groove joints using E7018 electrodes.
(GWB-1)
• 3. Make horizontal welds with backing on V-groove joints using E7018
electrodes.(GWB-2)
• 4. Make vertical welds with backing on V-groove joints using E7018 electrodes.
(GWB-3)
• 5. Make overhead welds with backing on V-groove joints using E7018
electrodes.(GWB-4)
Course Assessment Method
5
6. 6
SMAW Equipment Set Up
1. Turn power supply on
2. Connect work clamp
3. Select electrode
a. Type
b. Diameter
4. Adjust output
a. Polarity
b. Amperage
6. Insert electrode into electrode
holder
7. SMAW-Groove Welds with Backing
• Different welding applications require differently
shaped welds at the point where two metal parts
are to be joined. This module explains groove
welds with backing and the various techniques
used to make them.
Introduction
7
1. ROOT GAP (Also called – Root
opening)
2. GROOVE ANGLE (total angle of the
groove)
3. BEVEL FACE
4. BEVEL ANGLE
5. MATERIAL THICKNESS
6. ROOT FACE (Also called -
landing edge)
14. Make flat welds with backing on V-groove joints
using E7018 electrodes.(GWB-1)
SMAW-Groove Welds with Backing
14
15. Make horizontal welds with backing on V-groove
joints using E7018 electrodes.(GWB-2)
SMAW-Groove Welds with Backing
15
16. Make vertical welds with backing on V-groove
joints using E7018 electrodes.(GWB-3)
SMAW-Groove Welds with Backing
16
17. . Make overhead welds with backing on V-groove joints using E7018
electrodes.(GWB-4)
SMAW-Groove Welds with Backing
17
18. 18
What are the
Responsibilities of a Welder?
• Welders have many areas of
important responsibilities
• These relate to:
–Arc Welding Safety
–Knowledge – Content
–Attitude – Reactions
–Skills – Performance
–Work Habits – Daily Functions
•Always keep safety in mind
when welding
19. 19
Welding Certification
•What is a welding certification?
– Welding certifications are used to test a welder’s knowledge and welding
skill
– Certifications are available for many different processes, materials, and
positions.
•Who certifies welders?
– Certification programs are offered by many different types of organizations:
• Companies
• Skilled Trades
• Military
• Ship Builders
• Pipelines
• The American Welding Society
20. 20
Welding Certification
•How can you become certified?
– Certification testing is available at testing facilities all over the United States
– The AWS offers many certifications including: welders, welding inspectors, and
welding educators
•What is the value of a welding certification?
– A welding certification proves that you have passed a test and are qualified for the
job
– As an AWS certified welder your name is kept in a national database which is used to
notify you of jobs open in your area
– It is a source of accomplishment and pride
