Pengaruh penambahan 0,4 % wt, 0,31 % wt, 2,16 % wt, tembaga serta fraksi volum dan proses canai dingin terhadap kondisi antarmuka kekerasan dan kekuatan aluminium matriks komposit berpenguat kawat tali baja dengan metode squeeze casting = The effect of 0.4%wt magnesium and 0.051%wt, 0.31%wt, 2.16%wt cooper addition with volume fraction and cold rolling process toward to the interface condition, hardness and strength of aluminum matrix composite reinforced high carbon steel wire rope with squeeze casting method