Correlation of welding current waveform with welding conditionbased on exploratory data analysis (EDA) / (Record no. 91083)

MARC details
000 -LEADER
fixed length control field 04567ntm a2200373 i 4500
003 - CONTROL NUMBER IDENTIFIER
control field MY-KuUP
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20251125105420.0
006 - FIXED-LENGTH DATA ELEMENTS--ADDITIONAL MATERIAL CHARACTERISTICS
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007 - PHYSICAL DESCRIPTION FIXED FIELD--GENERAL INFORMATION
fixed length control field ta
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 191107t20192019my a|||fram|| 000 0 eng d
020 ## - INTERNATIONAL STANDARD BOOK NUMBER
International Standard Book Number THE0008398(Local)
Qualifying information hardback
040 ## - CATALOGING SOURCE
Original cataloging agency UMP
Language of cataloging eng
Transcribing agency UMP
Description conventions rda
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) FKEE .A35 2019 r Thesis
100 0# - MAIN ENTRY--PERSONAL NAME
Personal name Afidatusshimah Mazlan,
Relator term author.
245 10 - TITLE STATEMENT
Title Correlation of welding current waveform with welding conditionbased on exploratory data analysis (EDA) /
Statement of responsibility, etc. Afidatusshimah Mazlan
264 #1 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE
Place of production, publication, distribution, manufacture Kuantan, Pahang :
Name of producer, publisher, distributor, manufacturer UMP,
Date of production, publication, distribution, manufacture, or copyright notice 2019
264 #4 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE
Date of production, publication, distribution, manufacture, or copyright notice © 2019
300 ## - PHYSICAL DESCRIPTION
Extent xiv, 90 pages :
Other physical details illustrations ;
Dimensions 30 cm. +
Accompanying material 1 CD-ROM
336 ## - CONTENT TYPE
Content type term text
Source rdacontent
336 ## - CONTENT TYPE
Content type term text
Source rdacontent
337 ## - MEDIA TYPE
Media type term unmediated
Source rdamedia
337 ## - MEDIA TYPE
Media type term computer
Source rdamedia
338 ## - CARRIER TYPE
Carrier type term volume
Source rdacarrier
338 ## - CARRIER TYPE
Carrier type term computer disc
Source rdacarrier
347 ## - DIGITAL FILE CHARACTERISTICS
File type text file
Encoding format PDF
Source rda
500 ## - GENERAL NOTE
General note Faculty of Electrical and Electronics Engineering
502 ## - DISSERTATION NOTE
Dissertation note Thesis (Master of Science) -- Universiti Malaysia Pahang – 2019
504 ## - BIBLIOGRAPHY, ETC. NOTE
Bibliography, etc. note Includes bibliographical references
520 3# - SUMMARY, ETC.
Summary, etc. Welding is a fabrication method that is used worldwide, especially in the manufacturing and automotive industries. The conditions of the welding weldment are important to ensure the quality of the product. Hence, the quality of the product is a big concern and strict requirement to deliver a good production. Therefore, the nondestructive test like dye penetrant test, ultrasound test, and radiographic test plays the role in certifying the quality of weldment based on ASME standard. Unfortunately, the nondestructive tests are costly and time consuming. Thus, a real-time monitoring method was applied in this study. The real-time monitoring allows the test to be carried out during welding activities where the results can be obtained immediately. In previous researches, studies on realtime monitoring used the welding signal such as arc light signal, sound welding, and welding current. Among the welding signal, welding current was chosen because of its simple signals, easy to collect, and rich with information in welding process. This study was carried out by welding current signal and welding condition monitoring and produced two results. Then, both results were proceeded to manual syncing and sliced into 1 mm pieces data for high sampling data. When more data are collected, they are more precise and have more resolution. Among the current characteristics, the current’s peak count is the most influential variable to correlate with the welding condition. Based on the current’s peak count, the good and defect conditions can be distinguished. Next, the welding condition data and the welding current pattern were analysed using exploratory data analysis (EDA) and the findings were concluded in this study. The analysis shows that the results support the earlier findings. In this experiment, metal inert gas (MIG) welding was used and set up at the Faculty of Mechanical Engineering, Universiti Malaysia Pahang in room temperature. The outputs of the experiment were the welding sample and welding current. The conditions of welding samples were identified by a qualified person in welding. Based on the result, the welding condition and welding current were compared using manual syncing of the length waveform. Then, the data were sliced into 1 mm data and analysed on EDA. In the end, the analysis shows that there was a significant difference between the welding samples in good condition and welding sample in defect condition using current’s peak count variable. This variable indicated similarities and differences between welding sample in good condition and defect condition. From the experiment, 8 out of 10 defect conditions were likely to be detected by examining the current’s peak count compared to the good welding condition. Among the defects, incomplete weld and lack of penetration (LOP) defects show differences in the current’s peak count whereas similar current peak count was found among other defects. As a conclusion, the welding current’s peak count can identify the conditions of welding sample whether it is in good or defect condition. In the future studies, the research can be improved by exploring each of the defect types based on the current pattern with different equipment and types of metal.
610 20 - SUBJECT ADDED ENTRY--CORPORATE NAME
Corporate name or jurisdiction name as entry element Faculty of Electrical and Electronics Engineering
General subdivision Dissertations
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Universities and colleges
General subdivision Disertations
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Theses
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme Library of Congress Classification
Koha item type Thesis
Holdings
Withdrawn status Lost status Source of classification or shelving scheme Damaged status Not for loan Collection Home library Current library Shelving location Date acquired Total checkouts Full call number Barcode Date last seen Copy number Price effective from Koha item type
  Not lost Library of Congress Classification     Reference UMPLIB PEKAN UMPLIB PEKAN Reference 07/11/2019   FKEE .A35 2019 r Thesis 0000127315 15/01/2020 1 07/11/2019 Thesis
  Not lost Library of Congress Classification   Not for loan   UMPLIB PEKAN UMPLIB PEKAN   07/11/2019   CD12136 0000127316 29/05/2020 1 07/11/2019 Thesis

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