THREAD CUTTING - LATHE MACHINE
Thread
of any pitch, shape and size can be cut on a lathe using single point cutting
tool. Thread cutting is operation of producing a helical groove on spindle
shape such as V, square or power threads on a cylindrical surface.
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| Thread Cutting Mechanism on Lathe Machine |
- Thread cutting is operation of producing a helical groove on spindle shape such as V, square or power threads on a cylindrical surface.
- The job is held in between centers or in a chuck and the cutting tool is held on tool post.
- The cutting tool must travel a distance equal to the pitch (in mm/inch/diametrical/module) as the work piece completes a revolution.
- The definite relative rotary and linear motion between job and cutting tool is achieved by locking or engaging a carriage motion with lead screw and nut mechanism and fixing a gear ratio between head stock spindle and lead screw.
- To make or cut threads, the cutting tool is brought to the start of job and a small depth of cut is given to cutting tool using cross slide.
