The document outlines the five step process to qualify a welding procedure according to ASME Section IX. It provides details on developing a draft procedure using 0.75" A36 steel plate welded in the flat position using GTAW and GMAW. Variables such as joint design, base metal and thickness, filler metal type and size, welding position, and electrical parameters are documented. The qualification weld was tested to verify it results in an acceptable weld with proper mechanical properties before the welding procedure specification can be used in construction.
Welding Procedure Specification and Welder approval based on
AWS D.1.1: Structural Steel Welding Code
ASME IX: Welding and Brazing Qualifications
API 1104: Welding of Pipelines
Welding Procedure Specification and Welder approval based on
AWS D.1.1: Structural Steel Welding Code
ASME IX: Welding and Brazing Qualifications
API 1104: Welding of Pipelines
How to write a Welding Procedure Specification (ISO 15614-1Tiago Pereira
Some key aspects of writing welding procedure specifications. A good learning point for people who have no experience in the field, and a good reference for seasoned engineers
Savoy Piping Inc., Supply, API 5L Pipes, API 5L line Pipes, API 5L x42,x52,x60,x65,x70, A333 Gr.6, A691, A671, A672, A335 P5,P9,P11,P22,P91, Hic Pipes, Sour Service Pipes, API 5L Pipes, API 5L Line Pipes
How to write a Welding Procedure Specification (ISO 15614-1Tiago Pereira
Some key aspects of writing welding procedure specifications. A good learning point for people who have no experience in the field, and a good reference for seasoned engineers
Savoy Piping Inc., Supply, API 5L Pipes, API 5L line Pipes, API 5L x42,x52,x60,x65,x70, A333 Gr.6, A691, A671, A672, A335 P5,P9,P11,P22,P91, Hic Pipes, Sour Service Pipes, API 5L Pipes, API 5L Line Pipes
Lean construction is the continuous process of eliminating waste, meeting or exceeding all customer requirements, focusing on the entire value stream and pursuing perfection in the execution of a constructed project.
This presentation is intended to provide an introduction to the NDT method of penetrant testing. Penetrant Testing (PT) is a non destructive testing method that builds on the principle of Visual Inspection.
4 suggestions to help you understand whether your organization is focused on continuous improvement or suffering from continuous pain because of a lack of a process for generating progress and improvement
Daily Production Management - 5 Tips to Maintain Stability & Exclusion of Abn...Antonius Pompi Bramono
5 tips to maintain stability & exclusion of abnormality in your daily production management by implementing 5S, Visual Control, Observing & Enforcement of Standard, Failsafe Devices and Abnormality Control.
Management Review is always conducted in the organization who has received ISO 9001 certification. But the problems are, Management Review is not adding value.
This presentation helps you to understand the problems may occurred in the Management Review and finally to get add values from this Review.
Fundamentals of Quality Control describes basic thinking of QC from good thinking creates good works and produce good products.
Good thinking comes from:
1. Management Consciousness
2. Scientific Thinking
3. Statistical Thinking
4. Assuring Own Process
5. Participation of All
Construction method of steel structure space frame .pptxwendy cai
High-altitude bulk installation refers to the method of total assembling of small assembled units or loose parts directly in the design position, applicable to the installation of space structure such as space frame and reticulated shell.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Q.1 A single plate clutch with both sides of the plate effective is required to transmit 25 kW at 1600 r.p.m. The outer diameter of the plate is limited to 300 mm and the intensity of pressure between the plates not to exceed 0.07N / m * m ^ 2 Assuming uniform wear and coefficient of friction 0.3, find the inner diameter of the plates and the axial force necessary to engage the clutch.
Q.2 A multiple disc clutch has radial width of the friction material as 1/5th of the maximum radius. The coefficient of friction is 0.25. Find the total number of discs required to transmit 60 kW at 3000 r.p.m. The maximum diameter of the clutch is 250 mm and the axial force is limited to 600 N. Also find the mean unit pressure on each contact surface.
Q.3 A cone clutch is to be designed to transmit 7.5 kW at 900 r.p.m. The cone has a face angle of 12°. The width of the face is half of the mean radius and the normal pressure between the contact faces is not to exceed 0.09 N/mm². Assuming uniform wear and the coefficient of friction between the contact faces as 0.2, find the main dimensions of the clutch and the axial force required to engage the clutch.
Q.4 A cone clutch is mounted on a shaft which transmits power at 225 r.p.m. The small diameter of the cone is 230 mm, the cone face is 50 mm and the cone face makes an angle of 15 deg with the horizontal. Determine the axial force necessary to engage the clutch to transmit 4.5 kW if the coefficient of friction of the contact surfaces is 0.25. What is the maximum pressure on the contact surfaces assuming uniform wear?
Q.5 A soft surface cone clutch transmits a torque of 200 N-m at 1250 r.p.m. The larger diameter of the clutch is 350 mm. The cone pitch angle is 7.5 deg and the face width is 65 mm. If the coefficient of friction is 0.2. find:
1. the axial force required to transmit the torque:
2. the axial force required to engage the clutch;
3. the average normal pressure on the contact surfaces when the maximum torque is being transmitted; and
4. the maximum normal pressure assuming uniform wear.
Q.6 A single block brake, as shown in Fig. 1. has the drum diameter 250 mm. The angle of contact is 90° and the coefficient of friction between the drum and the lining is 0.35. If the torque transmitted by the brake is 70 N-m, find the force P required to operate the brake. Q.7 The layout and dimensions of a double shoe brake is shown in Fig. 2. The diameter of the
brake drum is 300 mm and the contact angle for each shoe is 90°. If the coefficient of friction for the brake lining and the drum is 0.4, find the spring force necessary to transmit a torque of 30 N-m. Also determine the width of the brake shoes, if the bearing pressure on the lining material is not to exceed 0.28N / m * m ^ 2
Fruit shop management system project report.pdfKamal Acharya
The export maintenance system is a fully featured application that can help we manage fruit delivery business and achieve more control and information at a very low cost of total ownership.
A fruit export maintains automatically monitors purchase, sales, supplier information. The system includes receiving fruit from the different supplier. Customer order is placed in the system, based on the order fruit has been sales to the customer.
The report contains the details about product, purchase, sales, stock, and invoice. The main objective of this project is to computerize the company activities and to provide details about the production process at the fruit export maintenance system.
The demand of fresh fruit fruits and processed food items in international and domestic market has shown a decent increase. This estimation is creating a necessity for growing more and more fruit fruits to cater the growing demand of domestic & international market.
The customers effectively and hence help for establishing good relation between customer and fruit shop organization. It contains various customized modules for effectively maintaining fruit and stock information accurately and safely.
When the fruits are sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting fruits for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
The proposed project is developed to manage the fruit shop in the fruits for shop. The first module is the login. The admin should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Online blood donation management system project.pdfKamal Acharya
Blood Donation Management System is a web database application that enables the public to make online session reservation, to view nationwide blood donation events online and at the same time provides centralized donor and blood stock database. This application is developed
by using ASP.NET technology from Visual Studio with the MySQL 5.0 as the database management system. The methodology used to develop this system as a whole is Object Oriented Analysis and Design; whilst, the database for BDMS is developed by following the steps in Database Life Cycle. The targeted users for this application are the public who is eligible to donate blood ,'system moderator, administrator from National Blood Center and the staffs who are working in the blood banks of the participating hospitals. The main objective of the development of this application is to overcome the problems that exist in the current system, which are the lack of facilities for online session reservation and online advertising on the nationwide blood donation events, and also decentralized donor and blood stock database. Besides, extra features in the system such as security protection by using password, generating reports, reminders of blood stock shortage and workflow tracking can even enhance the efficiency of the management in the blood banks. The final result of this project is the development of web database application, which is the BDMS.
Top 13 Famous Civil Engineering Scientistgettygaming1
List of Best Scientist Who Gives Big Contribution in Civil Engineering Filed, in this we provide how they Contribute in Civil Engineering filed, For Data Collection civilthings.com helps us a lot.
Toll tax management system project report..pdfKamal Acharya
Toll Tax Management System is a web based application that can provide all the information related to toll plazas and the passenger checks in and pays the amount, then he/she will be provided by a receipt. With this receipt he/she can leave the toll booth without waiting for any verification call.
The information would also cover registration of staff, toll plaza collection, toll plaza collection entry for vehicles, date wise report entry, Vehicle passes and passes reports b/w dates.
This document is by explosives industry in which document discussed manufacturing process and flow charts details by nitric acid and sulfuric acid and tetra benzene and step by step details of explosive industry explosives industry is produced raw materials and manufacture it by manufacturing process
Online resume builder management system project report.pdfKamal Acharya
This project aims at the Introduction to app Service Management.
This software is designed keeping in mind the user’s efficiency & ease of handling and maintenance , as and secured system over centralized data handling and providing with the features to get the complete study and control over the business.
The report depicts the basics logic used for software development long with the Activity diagrams so that logics may be apprehended without difficulty.
For detailed information, screen layouts, provided along with this report can be viewed.
Although this report is prepared with considering the results required these may be across since the project is subjected to future enhancements as per the need of organizations.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
This is a assigned group presentation given by my Computer Science course teacher at Green University of Bangladesh, Bangladesh.
My Presentation Topic was - Cloud Computing
This group presentation includes the work Md. Shahidul Islam Prodhan, pages no 10 - 15.
www.facebook.com/TheShahidul
www.twitter.com/TheShahidul
www.linkedin.com/TheShahidul
3. Primary purpose for procedure qualification:
To verify compatibility of materials and techniques to result
in a sound weld with acceptable mechanical properties
• WPS qualified by mechanical testing
• PQR is documentation to prove that a weld can be made
using the procedure and have acceptable mechanical
properties
Welding Procedure Qualification
5. Five Step Process to Qualify a Welding
Procedure
1. Understand the intended application for which
the WPS will be used
2. Develop a draft procedure
3. Make a qualification weld
4. Test the qualification weld
5. Write up the WPS
6. 1. Understand the Intended Application for Which
the WPS Will Be Used
Things to know prior to qualifying a welding procedure
Know the application for the welding procedure
What welding process(es) are going to be used during
construction
What materials are going to be used during construction
• The types and grades
• The thicknesses of each material
• Are there dissimilar welds including welds between
different P-No.?
7. 1. Understand the Intended Application for Which
the WPS Will Be Used
Know the design requirements for the
application
Does the design require specific material
toughness requirements?
8. 2. Example Develop a Draft
Procedure Qualification
GTAW/GMAW qualification weld
• 0.75” A 36 plate material
• Flat position
• ER70S-6 electrode was used for GMAW
• ER80S-D2 electrode was used for GTAW
• No preheat or PWHT
Procedure Qualification Record (PQR) needs to address
the welding variables of each welding process
12. 3. Procedure Qualification – Joint Variables
• Joint variables are the same for GTAW and GMAW
• QW-402.1 – Groove design was a V-groove with a 45° included angle
• QW-402.4 – There was a backing bar used
• QW-402.10 – The root spacing was 1/8-in.
• QW-402.11 – Nonmetallic or non-fusing retainers were not used
13. Company Name: XYZ, Co. Ltd.
PQR No.: NRC-PQR-1
WPS No.: NRC-WPS-1 Date: June 18 and 19, 2015
Welding Process: GTAW and GMAW
Types (Manual, Automatic, Semi-Automatic): Manual
Joints (QW-402):
Note: The weld was both GTAW and GMAW with 1/4-in. deposited with GTAW and 1/2-in. deposited with
GMAW
3. Procedure Qualification – Joint Variables
14. 3. Procedure Qualification – Base Metal Variables
• Relevance of base metal variables depend on process
• QW-403.5 and QW-403.11 – Material was A36 plate which is P-No. 1 and Group 1
Material
Table QW-422
Paragraph Brief of Variables Essential Supplementary
Essential
Non-essential
QW-403
Base
Materials
.5 ϕ Group No. X
.11 ϕ P-No. Qualified X
Spec No. Type/Grade UNS No. P-No. Group No.
Nominal
Composition
Product Form
SA-36 - K02600 1 1 C-Mn-Si Plate, Bar & Shapes
15. 3. Procedure Qualification – Base Metal Variables
• QW-403.6, QW-403.8 and QW-403.10 – Material thickness was 0.75-in.
• QW-403.9 – No single weld pass in the qualification weld was greater than 1/2-in.
• GMAW only
Paragraph Brief of Variables Essential
Supplementary
Essential
Non-essential
QW-403
Base
Materials
.6 T Limits X
.8 ϕ T Qualified X
.9 t pass > 1/2-in. X
.10 T Limits (S. Cir. Arc) X
16. 3. Procedure Qualification – Base Metal Variables
Base Metals (QW-403)
Material Spec.: SA-36
Type or Grade: N/A
P- No.: P-No.1 To P-No.: P-No. 1
Thickness of Test
Coupon:
3/4-in.
Diameter of Test
Coupon:
N/A
Other:
1. SA-36 does not come in different grades
2. The weld was made on plate so diameter does not apply.
3. All passes were less than 1/2-in. thick
17. 3. Procedure Qualification – Filler Metal Variables
QW-404.3 – The GTAW wire diameter was 1/8-in.
• GTAW only
QW-404.6 – The GMAW electrode diameter was 0.035-in.
• GMAW only
QW-404.23 – Solid wire was used
Paragraph Brief of Variables Essential
Supplementary
Essential
Non-essential
QW-404
Filler Metals
.3 ϕ Size X
.6 ϕ Diameter X
.23 ϕ Filler Metal Product Form X
18. 3. Procedure Qualification – Filler Metal Variables
QW-404.4 – The welding wire was ER80S-D2 for GTAW and ER70S-6 for GMAW
• ASME Section II, SFA 5.28 specifies low-alloy steel electrodes for gas shielded arc
welding
• ASME Section II, SFA 5.18 specifies carbon steel electrodes for gas shielded arc welding
• Table QW-432
Paragraph Brief of Variables Essential
Supplementary
Essential
Non-essential
QW-404
Filler Metals
.4 ϕ F-No. X
F-No. ASME Specification AWS Classification
6 SFA-5.28 All Classifications
6 SFA-5.18 All Classifications
19. 3. Procedure Qualification – Filler Metal Variables
QW-404.5 – The welding wire was ER80S-D2 for GTAW and ER70S-6 for GMAW
• SAME ASME Section II specifications apply to determine chemistry
• Table QW-442
Paragraph Brief of Variables Essential
Supplementary
Essential
Non-essential
QW-404
Filler Metals
.5 ϕ A-No. X
A-No. Weld Deposit
Analysis, %
C Cr Mo Ni Mn Si
11 Mn – Mo 0.17 - 0.25 – 0.75 0.85 1.25 – 2.25 1.00
ER80S-D2 (SFA 5.18) 0.07 – 0.12 - 0.4-0.6 0.15 1.60 – 2.10 0.5 – 0.8
1 Mild Steel 0.20 - - - 1.60 1.00
ER70S-6 (SFA 5.18) 0.06 – 0.15 0.15 0.15 0.15 1.40 – 1.85 0.80 – 1.15
20. 3. Procedure Qualification – Filler Metal Variables
QW-404.12 and QW-404.33 – The wire classification was ER80S-D2 for
GTAW and ER70S-6 GMAW
QW-404.14 – Filler metal was used
• GTAW only
QW-404.50 – No flux was used
• GTAW only
Paragraph Brief of Variables Essential
Supplementary
Essential
Non-essential
QW-404
Filler Metals
.12 ϕ Classification X
.14 ± Filler X
.33 ϕ Classification X
.50 ± Flux X
21. 3. Procedure Qualification – Filler Metal Variables
QW-404.22 – No consumable insert was used
• GTAW only
QW-404.24 and QW-404.27 – No Supplemental filler metal was used so
variable does not apply
• GMAW only
QW-404.30 and QW-404.32 – Weld thickness was 1/4-in. for GTAW and
1/2-in. for GMAW
Paragraph Brief of Variables Essential
Supplementary
Essential
Non-essential
QW-404
Filler Metals
.22 ± Consumable Insert X
.24 ± or ϕ Supplemental X
.27 ϕ Alloy Elements X
.30 ϕ t X
.32 t limits (S.C. Arc) X
22. 3. Procedure Qualification – Filler Metal Variables
Filler Metals (QW-404)
SFA Specification: SFA 5.28 for GTAW
SFA 5.18 for GMAW
AWS Classification: ER80S-D2 for GTAW
ER70S-6 for GMAW
Filler Metal F-No. 6 for GTAW and GMAW
Weld Metal Analysis A-No.: 11 for GTAW
1 for GMAW
Size of Filler Metal 1/8-in. for GTAW
0.035-in. for GMAW
Weld Metal Thickness: 1/4-in. for GTAW
1/2-in. for GMAW
Other: -
23. 3. Procedure Qualification – Position Variables
Positions variables are the same for GTAW and GMAW
QW-405.1, QW-405.2 and QW-405.3 – The weld was made in the flat
position
Paragraph Brief of Variables Essential
Supplementary
Essential
Non-essential
QW-405
Positions
.1 + Position X
.2 ϕ Position X
.3 ϕ ↑↓ Ver cal Welding X
Position (QW-405)
Position of Groove: Flat
Weld Progression: N/A
Other: -
24. • Relevance of preheat variables depend on the process
• QW-406.1 and QW-406.2 – No preheating was used during
qualification
• QW-406.3 – Maximum interpass temperature was 450°F
3. Procedure Qualification – Preheat Variables
Paragraph Brief of Variables Essential
Supplementary
Essential
Non-
essential
QW-406
Preheat
.1 Decrease > 100°F X
.2
ϕ Preheat
Maintenance
X
.3 Increase >100°F X
26. • PWHT variables are the same for GTAW and GMAW
• QW-407.1, QW-407.2 and QW-407.4 – No PWHT was used
during qualification
3. Procedure Qualification – PWHT Variables
Paragraph Brief of Variables Essential
Supplementary
Essential
Non-essential
QW-407
PWHT
.1 ϕ PWHT X
.2 ϕ PWHT (T & T range) X
.3 T Limits X
27. 3. Procedure Qualification – Preheat Variables
PWHT (QW-407)
Temperature: None
Time None
Other: 1. No PWHT was used during
qualification
28. • Gas variables are the same for GTAW and GMAW
• QW-408.1 and QW-408.10 – No trail shield gas was used
• QW-408.5 and QW-408.9 – No backing shield gas was used
3. Procedure Qualification – Gas Variables
Paragraph Brief of Variables Essential
Supplementary
Essential
Non-essential
QW-408
Gas
.1 ± Trail or ϕ Composition X
.5 ± or ϕ Backing Gas X
.9
- Backing or ϕ
Composition
X
.10 ϕ Shielding or Trailing X
29. • QW-408.2 – 100% Argon shielding gas was used for GTAW
and 75% Argon/25% CO2 was used for GMAW
• QW-408.3 – 15 – 25 cfh shielding gas flow rate was used for
GTAW and 25 – 35 cfh shielding gas flow rate was used for
GMAW
3. Procedure Qualification – Gas Variables
Paragraph Brief of Variables Essential
Supplementary
Essential
Non-essential
QW-408
Gas
.2 ϕ Single, Mixture or % X
.3 ϕ Flow Rate X
31. • Relevance of electrical characteristics variables depend on the process
• QW-409.1 – The maximum heat input was 45 kJ/in.
HI (kJ/in.) = I * V /T.S. * 60 / 1000
• QW-409.2 – The GMAW transfer mode was globular
GMAW only
• QW-409.3 – Pulse mode GTAW was not used
GTAW only
3. Procedure Qualification – Electrical
Characteristics Variables
Paragraph Brief of Variables Essential
Supplementary
Essential
Non-essential
QW-409
Electrical
Characteristics
.1 > Heat Input X
.2 ϕ Transfer Mode X
.3 ± Pulsing I X
32. • QW-409.4 – GTAW weld was made using direct current with electrode positive polarity
and the GMAW weld was made using direct current and electrode negative polarity
• QW-409.8 – GTAW weld was made using a 175 -200 amps and 10 - 14 volts and the
GMAW weld was made using 170-200 amps and 24-28 volts
• QW-409.12 – The tungsten was 2% ceriated with a 1/8-in. diameter
GTAW only
3. Procedure Qualification – Electrical
Characteristics Variables
Paragraph Brief of Variables Essential
Supplementary
Essential
Non-essential
QW-409
Electrical
Characteristics
.4 ϕ Current or Polarity X X
.8 ϕ I or E Range X
.12 ϕ Tungsten Electrode X
33. 3. Procedure Qualification – Electrical
Characteristics Variables
Electrical Characteristics (QW-409)
Current: Direct Current
Polarity: EP for GTAW and EN for GMAW
Amps: 175 – 200 for GTAW and 170 – 200 for GMAW
Volts: 10 – 14 for GTAW and 24 – 28 for GMAW
Tungsten
Electrode Size:
1/8-in. diameter
Other: 1. Maximum heat input was 45 kJ/in.
2. 2% Ceriated Tungsten was used
34. • Relevance of technique variables depend on the process
• QW-410.1 – GTAW and GMAW weld was made using stringer beads
• QW-410.3 – GTAW weld was made with a 5/8-in. cup size and the GMAW weld was
made with a 1-in. nozzle size
• QW-410.5 – Cleaning was done using a wire brush
• QW-410.6 – No back gouging was performed
3. Procedure Qualification – Technique Variables
Paragraph Brief of Variables Essential
Supplementary
Essential
Non-essential
QW-410
Technique
.1 ϕ Stringer/Weave X
.3
ϕ Orifice, Cup or Nozzle
Size
X
.5 ϕ Method of cleaning X
.6
ϕ Method of Back
Gouging
X
35. • QW-410.7 – The weld was a manual weld
• QW-410.8 – A CTWD of 1/2 to 3/4-in. was used
GMAW only
• QW-410.9 – Multiple passes per side were deposited
• QW-410.10 – A single electrode was used
• QW-410.11 – The weld was made outside a chamber
GTAW only
3. Procedure Qualification – Technique Variables
Paragraph Brief of Variables Essential
Supplementary
Essential
Non-essential
QW-410
Technique
.7 ϕ Oscillation X
.8 ϕ Tube-work Distance X
.9 ϕ Multiple to Single Pass/Side X X
.10 ϕ Single to Multiple Electrodes X X
.11 ϕ Closed to Out Chamber X
36. • QW-410.15 – Only a single electrode was used
• QW-410.25 – The weld was a manual weld
• QW-410.26 – No peening was used
• QW-410.64 – No thermal processing was used
3. Procedure Qualification – Technique Variables
Paragraph Brief of Variables Essential
Supplementary
Essential
Non-essential
QW-410
Technique
.15 ϕ Electrode Spacing X
.25 ϕ Manual or Automatic X
.26 ± Peening X
.64 Use of Thermal Processes X
37. 3. Procedure Qualification – Electrical
Characteristics Variables
Technique (QW-410)
Travel Speed: 1 to 5 ipm
Stringer or Weave Bead: Manual Stringer Bead
Oscillation: No Oscillation
Multi/Single Pass per Side: Multiply Passes per Side
Multi/Single Electrode: Single Electrode
Other: 1. No peening was used
2. CTWD was 1/2 – 3/4-in.
3. Cleaning with a wire brush
4. GTAW gas cup was 5/8-in.
5. GMAW nozzle size was 1-in.
38. 4. Procedure Qualification – Testing
The qualification weld was a groove weld in 0.75-in. thick plate
• Table QW-451.1 and QW-451.2 outline the destructive test
requirements for procedure qualification
Thickness of Test
Coupon, T
Type and Number of Test Required
Tension, QW-
150
Side Bend, QW-
160
Face Bend, QW-
160
Root Bend, QW-
160
1/16-in. to 3/8-in. 2 (5) 2 2
> 3/8-in. but < 3/4-
in.
2 (5) 2 2
3/4-in. to < 1 1/2-in. 2 (4) 4 - -
1 1/2-in. to 6-in. 2 (4) 4 - -
39. 4. Procedure Qualification – Testing
(4) See details on multiple specimens when coupon
thickness is over 1-in.
(5) Four side bends can replace the face and root bends
when coupon thickness is 3/8-in. or greater
41. 4. Procedure Qualification – Testing
QW-150 describes the different types of tensile test samples, machine tolerances and
acceptance criteria
• The tensile strength must exceed 58 ksi
Minimum required strength for A36 QW-422
42. 4. Procedure Qualification – Testing
QW-160 describes the different types of bend test samples, machine tolerances and
acceptance criteria
No open discontinuities in the weld
or HAZ greater than 1/8-in.
Provides some leeway
43. 4. Procedure Qualification – Testing
QW-162 describes the bend test jig that should be used for qualification
44. 4. Procedure Qualification – Testing
The diameter of the mandrel is based on the material being tested
46. 4. Procedure Qualification – Testing
Tension Test, QW-150
Specimen No. Width Thickness Area Ultimate Load, lb Ultimate Stress, psi
Type of Failure and
Location
Specimen 1
Specimen 2
The tensile strength must exceed 58 ksi
Guided-Bend Test, QW-160
Specimen No. Width Thickness Area
Ultimate Load,
lb
Ultimate Stress,
psi
Type of Failure
and Location
Side Bend 1
Side Bend 2
Side Bend 3
Side Bend 4
No open weld or HAZ discontinuity greater than 1/8-in.