POWER HACK SAW ATTACHMENT TO A CENTER LATHE

Abstract

This work provides a simple and economical Hacksaw attachment on a Centre Lathe. The conventional hacksaw machines which are available in the market cost around 30,000 to 40,000 Indian Rupees where as our hacksaw attachment on Lathe costs around 10,000 to 15,000 Indian Rupees only. In this attachment we can obtain various cutting speeds from the Lathe and also variable cutting forces with the help of a movable dead weight where as in the conventional hacksaw machines variable cutting speeds and variable cutting forces are not possible. This attachment is most useful for small workshops where there is not enough space for accommodating both Lathe and Hacksaw machines. This Hacksaw attachment on a Centre Lathe uses a simple four-bar mechanism where the link adjacent to the smallest link is fixed and we get a Crank-Rocker mechanism. We can use the coolant mechanism available on the Lathe for cooling and lubrication. We can cut a variety of materials using this hacksaw attachment as variable cutting forces are available. We have designed each of the components in Unigraphics Nx-8.5, assembled and simulated the motion. We have manufactured the required components and purchased the standard components available in the market. We have calculated the  cutting force and the force obtained from the attachment is more than sufficient for cutting. We have also found out the temperatures during cutting of different materials such as Aluminum and Mild-Steel bar stocks using a Laser gun temperature measuring device.