The Study of Temperature Distribution in Steel Rods Welded by Friction Welding Using Finite Element Method
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Abstract
This research studies the temperature distribution around the weld zone of friction-welded steel with a diameter of 15 mm and a length of 100 mm. The temperature was measured at distances of 5 mm and 10 mm from the weld zone and compared with a finite element method based on 2D axisymmetric triangular and quadrilateral thin shell elements. The software used is Abaqus 16.4. The study was conducted under two conditions with five related variables: friction pressure (bar), friction time (sec), upset pressure (bar), upset time (sec), and rotational speed (rpm). The differing variable is the friction pressure, which is 20 bar in Condition 1 and 30 bar in Condition 2. The experimental results showed that the error between the experimental data and the model for Condition 1 was 0.79% at a 5 mm and 3.58% at a 10 mm. For Condition 2, the error was 3.4% at a 5 mm and 5% at a 10 mm. The phenomena is similar for both finite element method and experiment. This implies that the finite element method model can be used predict the temperature distribution in welding process.
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วารสารวิศวกรรมฟาร์มและเทคโนโลยีควบคุมอัตโนมัติ (FEAT Journal) มีกําหนดออกเป็นราย 6 เดือน คือ มกราคม - มิถุนายน และกรกฎาคม - ธันวาคม ของทุกปี จัดพิมพ์โดยกลุ่มวิจัยวิศวกรรมฟาร์มและเทคโนโลยีควบคุมอัตโนมัติ คณะวิศวกรรมศาสตร์มหาวิทยาลัยขอนแก่น เพื่อเป็นการส่งเสริมและเผยแพร่ความรู้ ผลงานทางวิชาการ งานวิจัยทางด้านวิศวกรรมศาสตร์และเทคโนโลยีพร้อมทั้งยังจัดส่ง เผยแพร่ตามสถาบันการศึกษาต่างๆ ในประเทศด้วย บทความที่ตีพิมพ์ลงในวารสาร FEAT ทุกบทความนั้นจะต้องผ่านความเห็นชอบจากผู้ทรงคุณวุฒิในสาขาที่เกี่ยวข้องและสงวนสิทธิ์ ตาม พ.ร.บ. ลิขสิทธิ์ พ.ศ. 2535
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