International Journal of Applied Engineering Research ISSN 0973-4562 Volume 9, Number 24 (2014) pp. 30643-30650 © Research India Publications http://www.ripublication.com Impact of Cryogenic Treatment and Temper to carbide toollife on turning process for Al T-6061 Agus Suprapto 1 , Agus Iswantoko 2 , Ike Widyastuti 3 1,2,3 Universityof Merdeka Malang, Mechanical Engineering Department, Engineering Faculty, 65146 Malang, Indonesia Correspondence Author :AgusSuprapto, Mechanical Engineering Department, Engineering Faculty, University of Merdeka Malang, Office Address: Jl. Terusan Raya Dieng 62-64, Malang, Indonesia. Postal Codes: 65146. Office phone/Fax: 62 341 581056, Email:agussuprapto@yahoo.com Abstract Generally to overcome the problem of cutting tool wear use coolant on metal cutting process for decrease the friction or use coating for cutting tool. Nowadays many industry develop the using of cryogenic treatment to improve wear resistance of cutting tool, for carbide toollifelonger. Target of this research is to evaluate impact of cryogenic treatment and temper to carbide toollife. Method in this research use cryogenic treatment process continued with temper process ofcarbide tool. Carbide cutting tool as result of this process implementedon turning process for Aluminiumalloy T-6061 with cutting depth (a) variation are 0,1 mm; 0,5mm and 1 mm, while cutting speed (Vc) 70 m/minute and constant feeding motion (f) 0,1 mm/rotation, without coolant. Research analyst use analytical method and perception with digital microscope and hardness test with Rockwell. The research result are :1. The greater of cutting depth(a), then wear of cutting tool edge (Vb) be greater, and tool life (T) be shorter.2. Result of cryogenic treatment for 48 hoursat cutting depth(a) 1mm, cutting speed(Vc) 70 m/minute and feeding motion (f) 0,1 mm/rotation, the toollifeincrease 28%. At the same condition with cryogenic treatment for 48 hoursand temper at 150 0 C for 1 hour the toollife increase to 105%. 3. For the cryogenic treatment at cutting depth(a) 1mm the Taylor equation of tool lifeVT 0,35 = 103,6707 and for the cryogenic treatment and temper at the same cutting depth condition the Taylor equation of tool life VT 0,2 = 95,06642 Keyword: carbide tool, cryogenic treatment, tool life, temper, wearof cutting tool edge