
What is the Certified Welding Inspector Program? World-wide recognized qualifications for Welding Inspectors.
The importance of CWI in the International market. CWI American National Standard AWS B5.1:2013-AMD1, Specification for the Qualification of Welding Inspectors. The necessity of CWI for the welding Industry. B5.1:2013-AMD1 - Specification for the Qualification of Welding Inspectors. The main purpose of welding inspection and the acceptance criteria of a specific code, and standard. The CWI responsibilities and activities. The required knowledge of welding processes. The knowledge of NDT inspections. Required knowledge of welding Metallurgy. Knowledge of Quality procedures, Quality Assurance Audits, and surveillance. Knowledge of Drawings and Welding Symbols. Knowledge of base materials, filler metals and electrodes, storage, and handling of electrodes. Knowledge of Procedure Qualifications Records, Performance Qualifications, Production welds qualifications, and Production personnel qualifications. Shall have Good and sufficient knowledge of applicable safety requirements in the workplace. CWI Exam pattern and minimum marks to be obtained to pass the exams. Guidance plan to study the required subjects and reference books.
This is for your kind Information that I have many students from 58 countries all over the world. These students are from:
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My dear students, CWI - AWS is a most valuable Certification and you have the best employment
opportunities all over the world. Study well and grab CWI Certification.
Introduction to Plasma Arc Welding (PAW).Plasma cutting process. How the arc is generated? What is a pilot arc? Plasma power source and circuit diagram. Plasma welding equipment.Plasma welding Torch and its parts. Plasma welding process diagram. PlasmaTorch cooling system. various problems with plasma Torch. Coolant for plasma Torch. Plasma welding process modes. What is Non Transferred arc Mode? What is Transferred Mode? What is Keyhole Mode? Effects of various factors on Weld Quality. Types of Tungsten Elecrodes. Colour code system for Tungsten electrodes. Electrode Vertex angles and their benefits.
Different names of the process. SMAW machines. Welding Transformers, Welding Rectifiers, and Welding Generators. welding power sources AC/DC. SMAW Machinery and Equipment. What is OCV? How the OCV will help the welder? What are Dropping characteristics and constant power supply? what is a short arc and a long arc and how will work? what are the different welding positions and types of welding? The welding position numbers. What is the 1G/F position on the plate and pipe? what is the 2G/F position on the plate and pipe? What is the 3G/F position on the plate and pipe? What is the 4G/F position? what are the 5G/6G positions on the pipe? what is the 2FR position? The sequence of welding. SMAW Electrodes. Electrode chemical coatings. Classification of electrodes and identification.Flux coating number, current, and polarity. Types of Flux coating etc.,
Tungsten Inert Gas Welding Process and Description. Difference between TIG and MIG Welding. Shielding gasses for TIG welding. Where can we use the TIG process? What is Autogenous Welding? Orbital GTAW Welding Process and automation of TIG welding process. TIG Welding Machines and Equipment, High-Frequency Arc Stabilizers. power source for the TIG Welding process. TIG Welding Torch and its parts. Welding techniques in the TIG Welding process. Welding positions in TIG Welding. Gas flow setup. Back purging and welding in the pipes. The benefits of Back purging. Weld failures without Back purging. Operation variables in TIG welding. TIG welding filler rods and identification of the rod nos. General Guidelines for selection of filler rod dia.Sample Questions on PAW, SMAW, and TIG Welding etc.,
Welding electrodes and consumables. What is welding? Different types of electrodes. Classification of electrodes as per AWS. What is an electrode? Why do you need electrode coating? How to identify the electrode? Types of SMAW electrodes. Basic electrodes and rutile electrodes.Classification and identification numbers of SMAW electrodes as per AWS.Low Hydrogen electrodes and identification numbers. Electrodes of 60 series, 70 series.High Tension Electrodes. 80 series, 90 series, 100 series, 110 series. Identification of Low Hydrogen electrodes in High tension electrodes.Electrode Extension numbers and alloy identification. Stainless Steel electrodes AWS Identification. Corrosion resistance Low carbon SS electrodes. Storage of SS electrodes. Selection of electrode diameter sizes.
GMAW electrodes. GMAW electrodes AWS specification and identification.GMAW electrode current and polarity. GMAW electrode identification numbers for DCEP and DCEN. FCAW electrodes AWS identification system. FCAW electrode numbers and explanations. Shielding gas is required and does not require electrode numbers. Self-shielding and Dual gas shielding electrodes.Amps and Voltage settings for different sizes of electrodes. GTAW electrodes and AWS Identification. What is AUTOGENIOUS WELDING? Classification of Tungsten electrodes as per AWS. Color code and Alloy combination for Tungsten electrodes. Electrode Baking ovens. SAW- Submerge Arc Welding electrodes. Flux for SAW. Specification of Flux and filler wire. SAW flux and filler wire specification and its explanation. SAW carbon steel and low alloy steel electrodes.Flux heaters and electrode Ovens.Baking ovens. Holding ovens. Different Types of Flux.Portable ovens/quivers. sample questions on welding electrodes and consumables etc.,
The CWI exam consists of three parts
Part A – Fundamentals
Part B – Practical,
Part C – Code Book Applications.
Part A is a closed-book exam that consists of 150 questions on the welding fundamentals, terms and definitions, welding processes, nondestructive examination, procedures, symbols, calculations, safety practices, and duties and responsibilities of a CWI.
Part B is a practical hands-on test to find the ability to visually identify welding discontinuities and to determine the acceptance or rejection of a weld.
Part C is an open book test of Code application to evaluate the applicant’s familiarity and ability with a selected code application.
The pass marks for Part- A, B & C is 72%
You can refer to the full details of AWS Certification and Qualification Standards in the following documents available at free of cost on the AWS website:
QC1:2016-AMD1 - Specification for AWS Certification of Welding Inspectors
B5.1:2013-AMD1 - Specification for the Qualification of Welding Inspectors
(Study the documents and be prepared well to answer any question from the document.)
In this course the candidate will learn the following :
Preparation of reports
Complete knowledge and understanding of the following welding processes:
SAW - PAW - RW - SMAW - SW- FCAW- GTAW -OFW- ESW- GMAW.
Thermal Spraying Soldering
Mechanical Cutting Thermal Cutting/Gouging
Brazing/Braze Welding
The fundamental principles of the following ND Tests:
VT, MT, UT, PT, RT, LT
He will acquire knowledge of quality procedures Quality audits/surveillance.
Knowledge and understanding of the fundamentals of welding metallurgy
Knowledge and understanding of all the welding symbols and engineering drawings.
Base material compliance
Filler metal compliance
Filler metal storage, handling
Inspection records compliance
Verification of proper documentation compliance
Base material and filler metal compatibility
Certification of documented results and compliance
Procedure qualification records compliance
Welding procedure compliance
NDE procedures compliance
Applicable safety requirements in the workplace as per the International Standards