To cut thread a single point cutting tool used is a turning tool with a carbide insert. From the stud the drive is conveyed to the lead screw by a train of gears.

How To Make A Thread With The Help Of Lathe Machine Youtube

Usually the drive is first carried to the spindle called the stud which for all purposes may be assumed to be the spindle itself as it rotates at the same speed and in the same direction unless made to reverse by the tumbler mechanism.

Thread cutting on lathe machine. This is performed by taking successive cuts with a threading toolbit the same shape as the thread form required. With this technique the tap or die is clamped in the tailstock using a variety of methods and threaded into or onto the workpiece under spindle power. In the case of a pitch of 8 threads per inch tpi the tool has to travel at a feed rate of 8 revolutions per inch or 0 125 ipr.

Adam nehr taught us how to make threads on the lathe. Thread cutting on lathe machine. Lathe machine is a machine that holds the workpiece on a chuck and tool on a toolpost the lathe machine rotates the workpiece about an axis to perform different operations such as turning facing chamfering thread cutting knurling drilling and more with tools that are applied to the workpiece to design an object with symmetry about that axis.

First of all machine the work piece up to the major diameter of the thread which has to be cut using the turning center. A lathe is a machine that rotates the workpiece about an axis to perform different operations such as turning facing taper turning knurling grooving parting off thread cutting reaming etc. Thread cutting on the lathe is a process that produces a helical ridge of uniform section on the workpiece.

To cut thread first thing is to calculate the pitch lead major diameter minor diameter and depth. Let s discuss all lathe machine operations one by one as follows. Rigid tapping is the second most common method of thread cutting on the lathe.

Now discussing about the thread cutting on a lathe machine. Smaller taps up to 3 8 can be clamped in a keyed jacob s style chuck never a keyless chuck. Cutting forces are generally higher and the cutting nose radius of the threading insert is smaller and therefore weaker.

In threading the feed rate must correspond precisely to the pitch of the thread. Now follow the following steps.