Turning center pdf

It is also used for turning the threads on locomotive wheels. The axis of the lathe bed is at right angles to the axis of the headstock spindle in the form of a T. This is widely used as a lathe in the present time because of its fast and accurate working. It is one of the most advanced types. It uses computer programs to control the machine tool. Once the program is fed into the computer as per the program it starts operation with very high speed and accuracy.

Even do preplanned programmed machine is there in which once code is set for the various operations it can starts operation without changing code in the next time. These types of lathes are also used for mass production like capstan and turret but there is no programmed fed system.

Before continuing any operation in lathe we have to load the job and center it on the head-stock spindle. In lathe operations , the headstock spindle holds the job and it rotates with the same speed as the spindle. The carriage holding the tool on the tool post, also the carriage gives the tool post moves longitudinally or crosswise direction to give the desired feed on the job.

These two motions longitudinally and crosswise help to remove the chips of the metal and give the proper shape of the job. It is tough to mention which operations are not performed in a lathe machine tool, though we discuss some important lathe operations in detail. We use this operation for producing a conical hole in the face of the job to make the bearing support of the lathe center when the job is to hold between two centers.

Head-stock and Tail-stock. Facing operation is for making the ends of the job produce a smooth flat surface with the axis of operation or a certain length of a job. The operation by which we remove the excess material from the workpiece to produce a cone-shaped or a cylindrical surface.

This operation is done to produce a cylindrical surface by removing excess material from the workpiece. A shoulder turning is called which has a different diameter to form a step from one diameter to another. It is a process of removal of excess material from the workpiece in minimum time by applying a high rate of feed and heavy depth of cut. The finish turning operation needs high cutting speed, minimum feed, and a very small depth of cut to generate a smooth surface.

In finish turning the depth of cut is around 0. A taper is defined as a uniform decrease or increase in the diameter of a workpiece along with its length. The operation by which a conical surface of the gradual reduction in diameter from a cylindrical workpiece is produced is called taper turning. Any increase in the length of the taper will require the use of a wider cutting edge which may destroy the workpiece due to the vibration and spoil the workpiece.

Job is held between the centers. The length of the workpiece will be long enough. An only a small taper on a long job is done by this process. Chamfering is used for beveling the end of a job to remove burrs, to look better, to make a passage of the nut into the bolt. The knurling tool is held rigidly on the tool post and pressed against the rotating job so that leaving the exact facsimile of the tool on the surface of the job. It is the operation that is used to produce a helical groove on a cylindrical or conical surface by feeding the tool longitudinally when the job revolved between the two centers.

The tool should be set exactly to the height of the centerline of the job and at 90 degrees to the job. In this operation, the job is rotated at the turning speed on the lathe axis and the drilling tool is fitted on the tail-stock spindle. And the tail-stock is moved towards the job by hand feed. In this operation, we can enlarge the diameter of the existing hole on a job by turning inside with some farm tool known as a boring tool. Reaming is the operation for sizing or finishing a drilled hole to the required size by a tool called a reamer.

In this operation, the job of this sheet metal is held between the former and the tail-stock center rotates at high speed with the former. So the job is taken exactly the shape of the former. In this operation a bar-type job is held on a chuck, rotates at turning speed, a parting-off tool is fed into the job slowly until the tool reaches the center of the job. Hey, now I want to hear from you. I hope you understand the definition, parts, types, operations, and specifications of a lathe machine.

If you have any queries or doubts about the lathe machine tool, you can ask me in the comment section and also you can join our Facebook group. I will love to hear from you and am glad to help you. Till then enjoy rest your day. A lathe is a versatile machine tool, you can perform almost any operation but in general, we use the lathe for turning, facing, chamfering, learning, thread cutting, drilling, boring, reaming, etc. Find Out More. NX Series NX nvu Specially used in the applications of complex work-piece A heavy duty double column machining centre is ideal for multi axis heavy machining through wide gap maintained between two columns.

Rigid and heavy structure design Find Out More. Propelling Innovations Imagine a world without technology; it would be a world without life, without possibilities. Boosting Features with our various machines. Jyoti CNC Automation Limited is the largest one-stop solution for computerized machine cutting tools.

Machine available in various spindle through hole sizes to provide adequate machining solutions for different size pipes. Tailstock Basic Structure Cutting Performance Detailed Information Options Applications Capacity Diagram Specifications Standard programmable tailstock gives you the ability to easily adjust position of the tailstock for different work pieces to minimize setup time.

Twin chucking PMM. P The long boring bar option allows you to easily machine deep holes to minimize cycle time. Please consult with Doosan specialist for details. For more stable pipe threading process, twin chucking option manual or pneumatic is available. Recommended for users who need to change tools frequently or reduce the set-up time. Your most recent searches Delete. Frequent searches. Other sections. Catalog excerpts. Open the catalog to page 2. Open the catalog to page 3.