Kittichai Sojiphan

Kittichai Sojiphan
King Mongkut's University of Technology North Bangkok | KMUTNB · Sirindhorn International Thai-German Graduate School of Engineering (TGGS)

Ph.D. (Welding Engineering)

About

81
Publications
88,828
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52
Citations
Additional affiliations
June 2020 - present
King Mongkut's University of Technology North Bangkok
Position
  • Lecturer
Description
  • Railway Vehicles and Infrastructure Engineering (RVIE)
September 2018 - present
Mahidol University
Position
  • Instructor
Description
  • Teaching Courses for Master of Engineering Degree: Course 1 - Advanced Welding Processes and Control of Welded Properties (With Dr. Eakkachai Warinsiriruk)
August 2018 - present
Chachoengsao Technical College
Position
  • Instructor
Description
  • Teaching Course for Bachelor Degree in Welding Technology: Course 1 - Technology Materials (Engineering Materials) (Course following IIW Guideline for International Welding Specialist - Module 2)
Education
August 2019 - August 2019
American Welding Society (AWS)
Field of study
May 2017 - October 2017
International Institute of Welding (IIW)
Field of study
  • International Welding Engineer (IWE)
January 2009 - May 2015
The Ohio State University
Field of study
  • Welding Engineering

Publications

Publications (81)
Article
Full-text available
Resistance stud welding process is mostly used in several industries for manufacturing and joining of structural parts and components. During this process, the stud is stably welded on a base plate or component before bringing the other part or component to join them together by means of mechanical fastening. Resistance stud welding is a fast proce...
Article
Full-text available
Rail transportation has been an emerging and promising transportation method for economic development in Thailand and several countries. Thermite welding is one of the major welding and joining processes used to weld rail steel both during construction and maintenance. Unlike most welding processes in which heat is generated by electrical energy, t...
Presentation
Full-text available
This is undergraduate senior project performed by my students in Department of Welding Engineering Technology, College of Industrial Technology, KMUTNB. The work is presented in the 5th International Conference on Smart Materials and Nanotechnology (SmartMat@2020) on December 2, 2020 at Nong Nooch Garden, Pattaya, Chonburi, Thailand.
Poster
Full-text available
This is the continuing work of Kakana from her undergraduate senior project in Welding Engineering Technology, KMUTNB. She presented this work as part of Poster presentation at the 5th International Conference on Smart Materials and Nanotechnology (SmartMat@2020) on December 2-3, 2020.
Technical Report
Full-text available
Undergraduate Senior Project Report in Welding Engineering Technology, College of Industrial Technology, King Mongkut's University of Technology North Bangkok (KMUTNB)
Technical Report
Full-text available
Undergraduate Student Senior Project Project Report in Welding Engineering Technology Department, College of Industrial Technology, KMUTNB
Data
Curriculum Vitae - Kittichai Sojiphan, Ph.D., IWE, CWI
Presentation
Full-text available
Power Point Presentation Slide Presented at TMETC12 Conference during 6-8 November 2019 in Chiang Mai, Thailand
Conference Paper
Full-text available
MIG-Brazing process is widely used arc welding process for joining dissimilar sheet metal parts in automotive industry. The advantages of this process include low heat input, less welding spatter, minimal distortion, and its ability to join dissimilar metals. This paper presents the study of the area and size of surface wetting of filler metal on t...
Presentation
Full-text available
Presentation of the Paper at the 72nd IIW Annual Assembly and International Conference on July 11-12, 2019 in Bratislava, Slovakia.
Technical Report
Full-text available
This technical report is the undergraduate senior project performed by Mr. Anuwat Rattana in his Bachelor's Degree in Welding Technology at College of Industrial Technology, King Mongkut's University of Technology North Bangkok. Abstract: This senior project report aims to study micro structure and hardness of railway steel from Jominy End Quench...
Conference Paper
Full-text available
Rail transportation has been an emerging and promising transportation method for economic development in Thailand and several countries. Thermite welding is one of the major welding and joining processes used to weld rail steel both during construction and maintenance. Unlike most welding processes in which heat is generated by electrical energy, t...
Technical Report
Full-text available
This is Undergraduate Senior Project Report of my students in Welding Technology. Abstract: The objective of this senior project report is to study the area and size of surface wetting of filler metal on the lap joint of MIG-Brazed 0.8 mm thick galvanized steel sheets grade JIS G3302 and JIS G3302 as well as dissimilar lap joint between grade JIS G...
Article
Full-text available
Ultrasonic inspection is one of the most widely used non-destructive testing methods for inspection of fabricated structures and components. During ultrasonic inspection, mechanical waves in form of ultrasound are transmitted and propagate through volume of parts or components and reflect when the waves meet with the existing interface such as flaw...
Conference Paper
Full-text available
This article presents the results of thermite welding of 100 pounds railway steel grade R260 by studying the effect of pre-heat temperature before thermite welding on the mechanical properties and the soundness of the weld metal. The degree of pre-heat temperature was determined from the point at which the head of railway steel was about to melt. T...
Conference Paper
Full-text available
Distortion and residual stress induced by welding processes are major concerns for several industries including shipbuilding. While weld repair and part correction could be performed, such tasks result in huge losses of time and money. This article investigates the correlation between the distortion and the residual stress in one-side one-pass subm...
Conference Paper
Full-text available
In this article has been applied the double pulse gas metal arc welding (DP-GMAW) to build-up the aluminum laminate wall base on the concept of wire and arc additive manufacturing (WAAM). The GMAW robotic has build-up the filler wire ER5356 diameter 1.2 millimeters with industrial grade argon gas shielding on aluminum 5083 substrate material. The t...
Preprint
Full-text available
Abstract Presented at the 10th International Conference on Materials Science and Technology (MSAT-10), September 6-7, 2018 Full Paper to be publised in Key Engineering Materials in 2019. Ultrasonic inspection is one of the most widely used non-destructive testing methods for inspection of fabricated structures and components. During ultrasonic ins...
Presentation
Full-text available
This is presentation of Conference Paper titled "Study of Hardenability and Weldability of Railway Steel Using Jominy End Quench Test Method", presented at TMETC11 Conference.
Conference Paper
Full-text available
Construction of railway track is one major component of developing railway transportation. Railway track is made of high quality steels and includes several sizes depending on service loading conditions. In order to create a sound joint between railway track, it is important to control process parameters involved in welding of two pieces of railway...
Presentation
Full-text available
Introduction to MaSE (Material Manufacturing and Surface Engineering Research Center), King Mongkut's University of Technology North Bangkok, Thailand. Research Center Director: Dr. Karuna Tuchinda
Presentation
Full-text available
Ultrasonic inspection is one of the most widely used non-destructive testing methods for inspection of fabricated structures and components. During ultrasonic inspection, the mechanical waves in form of ultrasound are transmitted and propagate through volume of parts or components and reflect when the waves meet with the existing interface such as...
Technical Report
Full-text available
Shielded metal arc welding (SMAW) is a welding process used to weld metals together where the heat comes from the arc between the electrode and the workpieces. In SMAW process, the electrodes also as deposited metal while the electrode coating melts and turns into fumes and slag covering the weld metal. SMAW process is widely used because of its fl...
Technical Report
Full-text available
Shielded Metal Arc Welding (SMAW) process has been widely used in fabrication industry nowadays. Its advantage includes no need of gas tank required for shielding and its ability to be used for field and outside welding as well as its lower cost for welding machines compared to other welding processes. In SMAW process, the flux-covered electrodes a...
Technical Report
Full-text available
The objective of this project report was to study the hardenability of railway steel using Jominy end quench test. The knowledge of effect of the cooling rate on the distance of hardness depth in Jominy tested specimens would benefit the selection of proper heat treatment processes or welding processes for railway steel in order to obtain optimal m...
Technical Report
Full-text available
This senior project report presented the results of thermite welding of 100 pound railway steel grade R260 by studying the effect of pre-heat temperature before thermite welding on the mechanical properties and the soundness of the weld metal. The degree of pre-heat temperature was determined from the point at which the head of railway steel was ab...
Presentation
Full-text available
Overview and Update of my research background and current research activities in welding and materials joining.
Presentation
Full-text available
Gas tungsten arc welding was used to weld aluminum alloy 5083 specimens of 3 mm thickness using different brands of pure tungsten electrodes. No filler metal was used and thus the weld was autogenous weld. The welding was performed using mechanized process with preset welding current of 120 Ampere and welding speed of 4.2 mm/s. This research invest...
Article
Full-text available
Distortion induced by welding process is one of the major problems found in shipbuilding industries. Significant loss in time and cost to correct and repair this welding defect occurs whenever the distortion value exceeds the shipbuilding standard limitation. In addition, there is also a challenge to replace the common two-side welding with gouging...
Technical Report
Full-text available
Duplex stainless steels are widely used in oil and gas pipelines both offshore and onshore due to their good mechanical properties and corrosion resistance. The microstructure of duplex stainless steel consists of two phases which are austenite and ferrite. Phase balance between austenite and ferrite is directly affected by welding parameters; and...
Technical Report
Full-text available
The problem of deflection behaviour of the workpiece is one of the significant problems encountered in shipbuilding. This will cause wasted time and cost for repairs. Therefore, the submerged arc welding process by one side and one pass welding method was studied to reduce the deflection of the workpiece. Material for this experiment is ASTM A131 G...
Presentation
Full-text available
Presentation of the Paper titled ”Effect of Post-Weld Heat Treatment on Changes in the Heat Affected Zone Grain Size and Hardness in Dissimilar Welds of Power Plant Boiler Tubes Grade ASTM SA213-TP347H and Grade ASTM SA213-T22”
Conference Paper
Full-text available
Mae Moh Power Plant uses lignite as fuel for generating the electricity. The boiler tubes are made of different grades of steels that can withstand different levels of temperatures and pressures, i.e. creep resistant steels. In this study, boiler tube sections of ASTM SA213-T22 chromium molybdenum steel (T22) and ASTM SA213-TP347H austenitic stainl...
Presentation
Full-text available
Distortion induced by welding processes is one major problem found in several industries in which appropriate distortion control techniques are necessary. This research investigates the effect of gas tungsten arc welding current (50, 60, 70 A) on the welding distortion and the weld size of the aluminum alloy specimens of two different sizes (1.2 an...
Conference Paper
Full-text available
Distortion induced by welding processes is one major problem found in several industries in which appropriate distortion control techniques are necessary. This research investigates the effect of gas tungsten arc welding current (50, 60, 70 A) on the welding distortion and the weld size of the aluminum alloy specimens of two different sizes (1.2 an...
Preprint
Full-text available
Duplex stainless steels are widely used in oil and gas pipelines both offshore and onshore due to their good mechanical properties and corrosion resistance. The microstructure of duplex stainless steel consists of two phases: austenite and ferrite. Phase balance between austenite and ferrite is directly affected by welding parameters; and thus, may...
Presentation
Full-text available
Thermite welding is one of the selected methods used in the railway construction and maintenance. During thermite welding, it is very important to properly choose welding process parameters to avoid or minimize fracture and fatigue failures at welded joints during the usage, which causes waste of time and maintenance cost in addition to the delay i...
Conference Paper
Full-text available
Thermite welding is one of the selected methods used in the railway construction and maintenance. During thermite welding, it is very important to properly choose welding process parameters to avoid or minimize fracture and fatigue failures at welded joints during the usage, which causes waste of time and maintenance cost in addition to the delay i...
Technical Report
Full-text available
Thermit welding is one of the selected methods in the railway maintenance. During thermite welding, welding process parameters must be concerned because if the parameters are not selected properly, the problems of fracture and fatigue failures at welded joints might occur during the usage. This results in waste of time and maintenance cost. Moreove...
Technical Report
Full-text available
Mae Moh power plant uses lignite as fuels for generating the electricity. The boiler tubes are made of metallic tubes that can withstand different levels of temperatures and pressures. Here, there are boiler sections composed of dissimilar welds between chromium molybdenum steel and austenitic steel by gas tungsten arc welding. This research is aim...
Technical Report
Full-text available
Nowadays, the industry and technology develops without limits. The welding process has played a greater role in the industrial sector, such as the assembly of automobile parts, manufacturing industry, etc. Tungsten Inert Gas (TIG) welding is a type of arc welding. It is important for the welders and welding operators to know the welding principles...
Presentation
Full-text available
This presentation was presented at the IIW Commission I Program for Annual Assembly 2017 in Shanghai, P.R. China on Monday 26th June 2017 (IIW Doc. I-1307-17). The work was part of my Ph.D. Dissertation in Welding Engineering at The Ohio Sate University. This work is under the preparation for manuscript preparation to be submitted to Welding in the...
Conference Paper
Full-text available
การศึกษาผลกระทบจากพลังงานความร้อนจากกระบวนการเชื่อม GMAW ต่อการบิดตัวของชิ้นงานเหล็กกล้าไร้สนิม เกรด 304L This research studies the effect of heat input during Gas Metal Arc Welding (GMAW) process on the temperature distribution and distortion of stainless steel 304L. Typically, it is difficult to weld stainless steel due to the distortion caused b...
Presentation
Full-text available
Duplex stainless steel are widely used in oil and gas pipelines both offshore and onshore due to their good mechanical properties and corrosion resistance. The microstructure of duplex stainless steel consists of two phases which are austenite and ferrite. Phase balance between austenite and ferrite is directly affected by welding parameters; and t...
Presentation
Full-text available
Distortion induced by a welding process is one of the major problems found in shipbuilding industries. Significant losses in time and cost to correct this welding defect occurs whenever the distortion value exceeds the limitation of the shipbuilding standard. In addition, there is also a challenge to replace the common two-side welding with gouging...
Presentation
Full-text available
งานวิจัยนี้เป็นการศึกษาและวิจัยร่วมระหว่างคณะผู้วิจัยกับศูนย์การผลิตและซ่อมบารุง ฝ่ายการช่างโยธา การรถไฟแห่งประเทศไทย เพื่อทาการเริ่มศึกษาและเก็บข้อมูลตัวแปรต่างๆที่เกี่ยวข้องกับกระบวนการเชื่อมเทอร์มิต โดยเป็นจุดเริ่มต้นในการเพิ่มเติมความรู้ความเข้าใจมากยิ่งขึ้นทั้งในด้านกระบวนการเชื่อมรางและกระบวนการทางโลหะวิทยาที่เกี่ยวข้อง โดยงานวิจัยนี้ได้ทาการ...
Poster
Full-text available
Perspective and Evaluation of An Outcome-Based Rail Research Learning 2017 (PEARL2017), The 13th NSTDA Annual Conference (NAC2017)
Article
Full-text available
Autogenous gas tungsten arc welding (GTAW) using different non-consumable pure tungsten electrodes (EWP) from eight different manufacturers was performed on aluminum alloy 5083 samples. Due to the limited literatures of how tungsten microstructure may affect the weld quality, this paper attempts to investigate the change in microstructure of tungst...
Poster
Full-text available
Submerged arc welding process is one of welding processes widely used in ship building industry. One of the typical problems found is distortion induced by residual stress. This major problem is crucial for rectification and it causes many subsequently severe losses in terms of quality and time for the repair of steel plates using welding and joini...
Poster
Full-text available
Duplex stainless steels are used widely in offshore and petrochemical industries due to their good mechanical properties and corrosion resistance. The microstructure of duplex stainless steel consists of two phases including austenite and ferrite. During welding of duplex stainless steels, welding parameters as well as backing gas mixtures affect t...
Poster
Full-text available
Background: Gas tungsten arc welding (GTAW) process is widely used in several manufacturing industries as well as maintenance and repair sectors. Tungsten electrode is the major component producing and supplying arc as heat source during welding. The ability to predict and estimate the life time of the use of tungsten electrode and relate it to the...
Presentation
Full-text available
Tungsten Electrodes vary with cost even though the classifications are the same. Selection of the better electrode for high quality weld requires a lot of trials and errors with different manufacturers’ products, yet no fundamental knowledge is not available to the public. The goal of the research is to investigate and evaluate the quality of pure...
Preprint
Full-text available
Autogenous gas tungsten arc welding (GTAW) using different non-consumable pure tungsten electrodes (EWP) from eight different manufacturers was performed on aluminum alloy 5083 samples. Due to the limited literatures of how tungsten microstructure may affect the weld quality, this paper attempts to investigate the change in microstructure of tungst...
Article
Full-text available
Finite element modeling is a popular method used to calculate residual stress within the material. In this article, hot plate welding process of polymer and plastic is discussed. The residual stress distribution within polycarbonate samples subjected to hot plate welding at 230-250 deg-C with welding time of 35-60 seconds were calculated using ANSY...
Poster
Full-text available
3D Printing using ultrasonic energy, also called ultrasonic additive manufacturing, is a new state-of-the-art process that applies ultrasonic vibration at 20 kHz and compressive force to fabricate solid sample from thin metal tapes. This process is capable of create complex geometry part with dissimilar materials joining and embedding capability fo...
Thesis
Full-text available
Very High Power Ultrasonic Additive Manufacturing (VHP-UAM) was used to fabricate 10 layers and up to 80 layers samples from aluminum alloy 3003-H18 foil (Al3003-H18) of 150 µm thickness with varying vibration amplitude and normal force. This research was aimed at studying the change in hardness, microstructure, and texture in Al3003-H18 foil both...
Conference Paper
Full-text available
Very high power ultrasonic additive manufacturing (VHPUAM) has shown good bond quality over traditional ultrasonic consolidation processes. However, the stability of microstructure in bulk and interface regions is unknown. Our earlier research showed a large difference in grain growth kinetics between bulk and interface regions. Therefore, we have...
Presentation
Full-text available
Very high power ultrasonic additive manufacturing (VHPUAM) has shown good bond quality over traditional ultrasonic consolidation processes. However, the stability of microstructure in bulk and interface regions is unknown. Our earlier research showed a large difference in grain growth kinetics between bulk and interface regions. Therefore, we have...
Conference Paper
Full-text available
Very High Power Ultrasonic Additive Manufacturing (VHP-UAM) system was used to produce aluminum parts from 150 μm thick Al3003-H18 foils. The build was processed at 36 μm vibration amplitude, 8 kN normal load, and 35.6 mm/s weld speed at 20 kHz frequency. Almost 100% linear weld density was achieved. A deformation-interaction volume of ~20 μm was o...
Presentation
Full-text available
Very High Power Ultrasonic Additive Manufacturing (VHP-UAM) was used to fabricate aluminum parts from Al3003-H18 foils with almost 100% linear weld density. Microstructure stability including grain boundary structures, crystallographic orientations, misorientations, and textures were obtained and analyzed using Electron Backscatter Diffraction (EBS...
Presentation
Full-text available
Computational Modeling of Microstructure Evolution During Welding/Joining - Group Project Presentation Welding Engineering Program, The Ohio State University, USA
Conference Paper
Full-text available
During plastic welding, localized heating and cooling near the weld results in residual stress formation due to differences in thermal expansion between hot and cold regions. ANSYS finite element analysis was used to first predict the temperature fields and cooling rates for hotplate welding of polycarbonate. The temperature fields were then used a...
Thesis
Full-text available
Formation of residual stresses during hot plate welding and other plastic welding processes can have detrimental effects on the joint quality under static and dynamic loading as well as reduce the corrosion resistance of the joints. Therefore, it is important to measure and predict residual stress level to prevent premature failures. Uncoupled fini...
Presentation
Full-text available
This is my presentation file during my Thesis defense for M.S. degree in Welding Engineering, The Ohio State University, USA.
Conference Paper
Full-text available
Microfluidic devices and micro-electro-mechanical systems (MEMS) have become one of the most interesting and important applications in biotechnology, biomedical, pharmaceutical, life sciences, and agriculture. Research in manufacturing technologies used to fabricate these devices is important for improved quality as well as for time and cost saving...
Technical Report
Full-text available
EX425 alloy is the fully austenitic austenitic gamma’ Ni3 (Al, Ti) strengthened alloy, which utilizes mechanically induced martensitic transformation to improve toughenss and increase ductility. This alloy was first studied by Stavehaug in 1990 and further explored by the BlastAlloy TRIP180 materials design team in 2005 as a prototype alloy to desi...
Presentation
Full-text available
This is the presentation of my Senior Project Thesis for B.S. degree in Materials Science and Engineering at Northwestern University, USA.
Technical Report
Full-text available
The CivilShield project done through IDEA 398 has had three project missions. They are to design material and structures for blast-resistant applications, identify possible anti-blast civil shield applications of this technology, and to conduct experiments of physical blast tests of prototype materials while developing new blast-resistant materials...
Presentation
Full-text available
MSE391 Process Design Term Project - Fall 2004 Department of Materials Science and Engineering Northwestern University, USA