Welding education and training
1.Welding education and training requires continuous attention at all levels.There are great opportunities for male and female professionals.Welders are required in all industrial sectors all over the world.
2.Welders training and certifications
We can appreciate the importance of theoretical as well as practical inputs for a reasonable time period(7weeks) to make a useful welder both qualified and skilled.Many countries follow standards which give very useful guidelines to conduct training
programme effectively.Only qualified and certified welders need to be employed as per respective codes for product manufacture.There is lot of demand for such welders for plate and pipe welding applications.As some of the products are very critical due to stringent service requirement ,welders should be trained as per specific job needs. Pressure vessels manufacture involves both shop floor and site fabrication.Many materials as well as welding positions makes the training more involved and instructors face many challenges.They require good competence.
Welders put on the job should satisfy quality requirements and must exhibit enormous skills as the joints should pass NDT tests
and meet service specifications.
During training period the welders should acquire sufficient knowledge on theoretical aspects and also practice as per instructions.Week after week their performance should improve and only fit welders are allowed to appear for testing before authorised approval body.After certifying only they are allowed to weld on the job.Recertification is mandatory after a stipulated period.
IS 817 gives complete details for shielded metal arc training.
In the USA ,AWSD1.1,ASME sec IX,API 1104 are generally used for
welder certification.Some companies in addition may specify their own standards .
In Europe EN ISO 9606-1(EN 287-1) is used for welders testing of fusion welds in steels.
Typical training guidelines from world reputed organisations are given below for reference.
Typical competency for SMAW welders
Line (GAC): D Shielded Metal Arc Welding (SMAW)
Competency: D6 Use the SMAW process on low carbon steel plate and pipe
Objectives
To be competent in this area, the individual must be able to:
Use the SMAW process to weld groove welds on low carbon steel plate and pipe.
LEARNING TASKS CONTENT
1. Weld multi-pass groove welds on single-vee butt joint using the SMAW process
On low carbon steel plate:
o Flat (1G) position
o Horizontal (2G) position
o Vertical (3G) position- uphill
o Vertical (3G) position- downhill o Overhead (4G)
Achievement Criteria
Performance
Conditions Criteria
The learner will be evaluated on their ability to use the SMAW process to:
Weld single-vee butt joint with open root in the 1G position
Weld single bevel butt joints with backing in the 1GF, 2GF, 3GF uphill and 4GF positions
Weld groove welds on mild steel plate in the 1G, 2G, 3G and 4G positions
Weld groove welds on mild steel pipe, in the 1G, 2G, 5G (uphill), 5G downhill and 6G
(uphill) positions
As part of a practical shop project, given the required tools and materials.
Welds will be evaluated for:
o Correct alignment
o Smoothness
o Absence of irregularities, surface porosity, undercut and arc strikes o Overall appearance
o Reinforcement of 2.5 mm (3/32”) or less Test coupons must pass the bend tests
Completed within specifications, safety standards and time frames acceptable to industry.
On low carbon steel pipe:
o Flat rolled (1G) position
o Vertical fixed (2G) position
o Horizontal fixed (5G) position – uphill
o Inclined fixed 45deg (6G) position – uphill o Horizontal fixed (5G) position – downhill o Combination (2G – 5G) positionLine (GAC): F Semi-Automatic Welding Competency: F4 Use the GMAW process
Objectives
To be competent in this area, the individual must be able to use the GMAW process to:
Weld stringer beads, fillet welds and groove welds on aluminum plate.
Weld groove welds on open root, single vee butt joints on mild steel plate.
Weld groove welds on low carbon steel pipe.
LEARNING TASKS CONTENT
1. Weld multi-pass groove welds
2. Weld stringer beads using the GMAW process
3. Weld fillet welds using the GMAW process
On low carbon steel pipe
o Flat rolled (1G) position
Butt joint On aluminum plate
o In the flat position
On aluminum plate: o Flat (1F) position
Lap joint
Tee joint
o Horizontal (2F) position
Lap joint
Tee joint
o Vertical (3F) position – uphill
Lap joint
Tee joint
o Overhead (4F) position
Tee joint On aluminum plate:
o Flat (1G) position
o Horizontal (2G) position
o Vertical (3G) position – uphill o Overhead (4G) position
4. Weld single-pass and multi-groove welds using the GMAW process
o o
Industry Training Authority
Flat (2G) position
Horizontal fixed (5G) position – downhill
On mild steel plate:
o Flat (1G) position
o Horizontal (2G) position
o Vertical (3G) position – downhil o Overhead (4G) position
On mild steel pipe:
Gas Tungsten Arc Welding
Competency: H4 Use the GTAW process for ferrous metals
Objectives
To be competent in this area, the individual must be able to use the GTAW process to:
Strike an arc using two methods.
Weld stringer beads and fillet welds on low carbon steel sheet.
Weld groove welds using low carbon steel filler metal on low carbon steel sheet.
LEARNING TASKS
1 Strike an arc using three methods
2. Weld stringer beads
3. Weld single-pass fillet welds
4. Weld groove welds using mild steel filler rod
CONTENT
Methods:
o Scratch start
o Lift arc
o High frequency
Flat (1S) position
On low carbon steel sheet: o Flat (1F) position
Corner joints
o Horizontal (2F) position
Lap joints
Tee joints
o Vertical (3F) position – uphill
Lap joints
Tee joints
On mild steel plate:
o Flat (1G) position
o Horizontal (2G) position
o Vertical (3G) position – uphill
Achievement Criteria
Performance
Conditions Criteria
The learner will be evaluated on their ability to:
Strike an arc using the touch start method and high frequency start method
Weld stringer beads in the flat position on mild steel sheet
Weld fillet welds in the 1F, 2F and 3F (uphill) positions on lap and tee joints on mild steel sheet
As part of a practical shop project and given the required tools and equipment.
Striking an arc must follow correct procedure and establish a puddle of desirable size.
Stringer beads will be evaluated for:
o Good fusion
o Smooth, slightly convex beads
o Absence of stray strike marks
o Absence of irregularities, porosity and undercut
Fillet welds will be evaluated for each of the criteria above, plus they must have legs of equal length.
Groove welds will be evaluated for: o Good fusion
o Smooth, slightly convex contour
o Absence of irregularities, undercut and porosity o Absence of stray arc strikes
o Reinforcement no greater than 2.5 mm (3/32”)
Test coupons must pass the bend tests
Completed within specifications, safety standards and time frames acceptable to industry.
3.Best Welding education & Training and certification centres
International welding engineering certification is offered by
APPROVED TRAINING BODY (ATB)
OF
INTERNATIONAL INSTITUTE OF WELDING
UNDER THE AUTHORITY OF
INDIAN INSTITUTE OF WELDING – ANB – (KOLKATA)
OFFERS
INTERNATIONAL DIPLOMA COURSES IN WELDING
http://www.cornerstoneacad.com
BETZ ENGINEERING & TECHNOLOGY ZONE
EDUCATIONAL & RESEARCH DIVISION
Register Office:
Door # 21- Dharakeshwari Nagar 1st Street,Sembakkam,
Tambaram to Velacherry main road,
Chennai – 600 073, India.
Telephone :+91 44 42625390
Mobile : +91 9551665681 / 83 /
Email : rg@betzengineering.com,registration@welding-certification.com
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One Year Full Time PG Certificate Programme in
