In this investigation, the experiments were performed to analyze the effect of lubrication on the air bending of Interstitial Free (IF) steel sheet with two different lubricants namely SAE30 oil and white grease. The various lubricating conditions namely die only; punch only, punch and die were employed. As expected, the punch load decreases when lubricant is employed. Further, the lubrication increases the springback significantly when it is applied on die only and both punch/die. The results of the analysis highlight effectiveness of lubrication and thereby helping to enhance the process.

Key words: Bending, IF steel, Lubricants, Springback