Design of Bar Peeling Attachment on Lathe Machine

Abstract

The purpose of this project is to design bar peeling attachments on lathe machine. Bar peeling is a kind of machining process. In bar peeling operation, cutting tool is rotated and bar is fed longitudinally towards the cutter head. Bar peeling operation is used to remove surface cracks, oxides and chilled skin from forged bar. This semi-finished bars are delivered to the industries and are used as an intermediate stage in the production of products. For example: axle components for the automobile industry, extrusion blanks for tube manufacturing and for hydraulic cylinders, etc. In lathe machine, bar is fixed in the chuck and rotated by the head stock. During the conventional turning operation, the cutting tool is traveling against the side of the bar and it is fed paralleling the longitudinal axis of the bar. The modified lathe machine comprising of a cutter head and bar feeding mechanism. In which cutting tool only rotate in a chuck and bar is fed longitudinally towards the cutter head. There are four cutting toolholders in cutter head. Out of which, two cutting tools are used for the rough turning and remaining are used for the finishing operation. By this modified lathe turning operation, long bars can easily peeled. This is low cost solution provided for bar peeling. These report discusses the detailed design of bar peeling attachments which includes Cutter head and bar feeding mechanism.