Exercise 2.3.92

EXERCISE 2.3.92

Face both the ends for holding between centres

• set the job on a four jaw chuck
• set the tool on the tool post
• face the job
• measure the length with vernier caliper

 

DETAILS OF PARTICULARS

 

 

Job Sequence

• Check the raw material for its size.
• Hold the job in a four-jaw independent chuck with 25 mm
overhang and true it.
• Set the R.H. facing tool in the tool post.
• Set the R.P.M.
• Face one end of the work.
• Mark the job 250mm long and punch witness marks on
the circumference.

• Reverse the job, clamp it in the chuck and true it again.
• Set the spindle speed closer to 318 revolution per
minute.
• Face the length up to the half punch mark level and
maintain 250 mm long.
• deburr and check the job.

 

 

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