PENGARUH VARIASI SUDUT CONE TERHADAP SIFAT FISIK PADA PENGELASAN FRICTION WELDING ALUMINIUM DAN TEMBAGA

Muhammad Hendri Syaputro; Agus Fikri;

Pengaruh Variasi Sudut Cone Terhadap Sifat Fisik pada Pengelasan Friction

Welding Aluminium dan Tembaga
Muhammad Hendri Syaputro

Penelitian ini mengkaji pengaruh variasi sudut cone terhadap sifat fisik sambungan pengelasan
rotary friction welding pada material aluminium dan tembaga. Tiga variasi sudut cone digunakan:
30°, 45°, dan 60°. Parameter pengelasan meliputi kecepatan putaran 1000 RPM, tekanan 20 kg/cm2
,
dan waktu gesek 60 detik. Hasil penelitian menunjukkan bahwa sudut cone mempengaruhi distribusi
suhu selama proses pengelasan, di mana suhu maksimum tercapai pada sudut cone 60°. Pengukuran
Burn-Off Length (BOL) menunjukkan bahwa sudut cone 30° menghasilkan pemendekan material
yang paling signifikan. Analisis struktur mikro dan makro menunjukkan adanya deformasi plastis
dan zona campuran logam yang berbeda pada masing-masing variasi sudut cone. Optimalisasi sudut
cone diperlukan untuk meningkatkan kualitas sambungan, yang ditunjukkan oleh kekuatan mekanik
dan homogenitas struktur mikro yang lebih baik.
Kata kunci: friction welding, aluminium, tembaga, sudut cone, burn-off length,struktur mikro.
Effect of Cone Angle Variation on Physical Properties in Friction Welding of

Aluminum and Copper
Muhammad Hendri Syaputro

This study examines the effect of cone angle variation on the physical properties of rotary friction
welding joints in aluminum and copper materials. Three cone angle variations were used: 30°, 45°,
and 60°. Welding parameters included a rotation speed of 1000 RPM, pressure of 20 kg/cm2
, and
friction time of 60 seconds. The results showed that the cone angle affected the temperature
distribution during the welding process, where the maximum temperature was reached at a cone
angle of 60°. Burn-Off Length (BOL) measurements showed that a cone angle of 30° produced the
most significant shortening of the material. Micro- and macro-structure analysis showed the
presence of plastic deformation and distinct mixed metal zones at each cone angle variation.
Optimization of the cone angle is required to improve the joint quality, which is indicated by better
mechanical strength and microstructure homogeneity.
Keywords: friction welding, aluminum, copper, cone angle, burn-off length, microstructure.