Text this: Friction and thickness effect on the progressive forming of hollow pins - simulation and experimental study

 __   _     _____      _____   __   __   _____    
| || | ||  |  ___||   / ___//  \ \\/ // |  __ \\  
| '--' ||  | ||__     \___ \\   \ ` //  | |  \ || 
| .--. ||  | ||__     /    //    | ||   | |__/ || 
|_|| |_||  |_____||  /____//     |_||   |_____//  
`-`  `-`   `-----`  `-----`      `-`'    -----`