Abstract:
The objective of the special research studies is to decrease problem of crack in the carbon steel wire rods AISI 12L14 during forging process. Therefore the simulation of the forging processes
by the finite element method for analysis the influential of the friction coefficient which affected to the maximum principal stress, which for the analysis could generate crack. The simulated of the
forging process for make the relationship diagram of the radian of the work piece and the friction coefficient. From the analysis the radian of the work piece equal 1.547 millimeters found that the
friction coefficient is 0.55. Therefore the forging process of the work piece has the volume of work piece equal the model. And from simulate at the friction coefficient as mentioned found that the
maximum principal stress at edge of the model after deformation has value is 860 megapascal Which more than the critical stress of the work piece at 540 megapascal and the friction coefficient equal
0.42. When compared the position of crack of the work piece and the model found that the position in the vicinity. So, the conclusion is the model could generate crack. Therefore the simulated of
friction coefficient reduce of 3 factor thats 0.08 , 0.095 and 0.13 respectively. The result found that the maximum principal stress decreased following the friction coefficient reduced. Therefore the
conclusion is that the reduced of the friction coefficient during the forging process, it can decreased could generate crack of the carbon steel wire rods AISI 12L14. From the study, it can decreased
problem of crack in the work piece during forging process by used the lubricant for reduced the friction during forging process. Therefore the analysis of the data base of the finite element method
for considers selective the condition of the production without crack and part design development continues.