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DIES

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DIES Purpose: Dies are used to cut external threads on round stock. Dies are selected by diameter and number of threads per inch. Fig 2 - Location In Machine – PowerPoint PPT presentation

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Title: DIES


1
DIES
Purpose Dies are used to cut external threads on
round stock. Dies are selected by diameter and
number of threads per inch.
Fig 2 - Location In Machine Shop Cabinet 3
Fig 1 - Location of dies In Senior Design Suite
  • Instructions
  • Select die according to diameter and threads
    per inch of the desired thread, a die handle, and
    allen wrenches appropriate to the die and handle.
  • If the die has an adjusting screw ensure that
    it is correctly set using a fastener of the same
    thread size.
  • Ensure stock is cut to the correct major
    diameter.
  • Chamfer ends of the stock where the threads are
    to be cut.
  • Select an oversized piece of round stock such
    that it will not enter into the cutting surfaces
    of the die.
  • Chuck up the stock to be cut and the oversize
    stock into a lathe as shown in figures 4 and 5
    below. DO NOT ROTATE THE LATHE WITH POWER.
  • Ensure the starting side of the die touches the
    stock to be cut. The starting side is labeled or
    can be determined by its greater chamfer length
    on the cutting surface.
  • Apply cutting oil to the die and stock.
  • While applying pressure turn the die in ½ turn
    cutting increments followed by backing ¼ turn to
    break the chips created.

Vendor McMaster-Carr www.mcmaster.com
Fig 3 Die and Handle
Fig 4 Setup in Lathe
Fig 5 Setup in Lathe
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