What is step turning operation on lathe machine?

Answer 1

Actually, there are 2 classifications of turning operations...

It can be classified as External operations and internal operations.

In external operations are:

1. Turning-(including steps, tapers, contours, and chamfers)

2. Facing

3.Grooving

4. Cut-off-(also called parting)

5. Thread cutting-(also called screw cutting)

while in Internal operations are:

1. internal drilling

2. Boring

3.Reaming

4.Tapping-(internal thread cutting)

Answer 2

Turning between centers on a lathe entails turning a workpiece between centers located in both the spindle and tail stock. This operation eliminates any inaccuracy from the effect of a possible inaccurate or worn chuck.

To achieve this, the chuck is removed and a backing plate with a drive pin is installed in its place. A dead center is set into the spindle and a live center into the tail stock. A lathe dog or carrier is clamped around the workpiece towards the end nearest to the spindle. The workpiece is then set between the centers with the carrier resting against the drive pin.

Drive centers for metal working have almost eliminated the use of the carrier/pin method. Instead of the backing plate, carrier and dead center, a drive center is set into the spindle. It drives the workpiece by setting its crown into its face and allows machining over the entire length of the workpiece in single cuts. Using a drive center is also considered "turning between centers".

Answer 3

Centering a work piece usually refers to when the piece is put into the chuck and the end faced off and then centre drilled to provide small tapered hole which can then accommodate and be supported by a running centre in the tailstock. In the case of a work piece being held in a four jaw chuck, centering would refer to adjusting each jaw to get the work piece running in the desired axis.

Answer 4

A quote from the related link is "Most lathe centers have a tapered point with a 60° included angle to fit workpiece holes with the same angle. ". I am a Mechanical Engineer and I have never seen an angle other than 60 degrees for the lathe center.

Answer 5

Step turning is an operation performed on lathe machine where the excess material is removed from the workpiece to obtain various steps of different diameters.

Answer 6

step turning is basically an operation performed on lathe machine to reduce diameter of a cylindrical work piece

Answer 7

Moving parallel to the longitudinal axis of the workpiece the tool is called the x-axis.

Answer 8

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