×
Abstrak
Salah satu parameter penting dalam FSW adalah geometri tool. Tool berguna untuk memanaskan dan menggerakan material benda kerja untuk menghasilkan suatu sambungan. Temperatur maksimum yang dihasilkan dari proses FSW, yaitu
80?ri titik leleh material benda kerja. Pemodelan distribusi temperatur dengan metode simulasi berguna untuk mempermudah penelitian dan menekan biaya penelitian FSW. Pemodelan tiga dimensi FSW dengan metode Computational Fluid Dynamic (CFD) menggunakan software ANSYS FLUENT dilakukan untuk mengetahui pengaruh tool terhadap distribusi temperatur pada FSW AA6061-T6. Variasi geometri tool dalam pemodelan distribusi temperatur FSW ini adalah diameter shoulder dan bentuk pin . Temperatur tertinggi pada sisi advance (AD) untuk semua variasi geometri tool. Nilai distribusi temperatur tertinggi dihasilkan oleh diameter shoulder 21 mm dan pin segilima. Nilai distribusi temperatur semakin meningkat dengan bertambahnya ukuran diameter shoulder dan jumlah sisi pada pin.
Kata kunci: FSW; Distribusi Temperatur;Computational Fluid Dynamic; ANSYS FLUENT; AA6061-T6;Diameter shoulder; Bentuk Pin
Abstract
One of the important parameters Friction Stir Welding (FSW) is tool geometry. Tool is useful to heat and to move the workpiece material to produce joints. The maximum temperature resulting from the FSW process is 80% of the melting point of workpiece material. The temperature distribution modeling with the simulation method was useful to facilitate the research and to minimize the cost on the FSW research. The three-dimensional FSW model with the Computational Fluid Dynamic (CFD) assisted with the software of ANSYS FLUENT was done to investigate the effect of tool on the temperature distribution of FSW AA6061- T6. The variations of tool geometry in the temperature distribution modeling of the FSW included the shoulder diameter and the pin shape. The highest temperature on the advance side (AD) was produced by the 21 mm shoulder diameter and the pentagonal pin. The value of the temperature distribution was increasing in line with the increase in the size of shoulder diameter and the number of sides of the pin.
Keywords: FSW; Temperature Distribution; Computational Fluid Dynamic; ANSYS FLUENT; AA6061-T6; Shoulder diameter; Pin shape