Lathes Page: 37
94 p: ill, .17 cm. Enclosed at end: Change 1 (3 pages) Contents: I. Nomenclature and maintenance -- II. Cutting tools, speeds, and lubricants -- III. Application of measuring instruments -- IV. Holding work -- V. General lathe operations -- VI. Drilling, reaming, and boring -- VII. Threads and threading -- VIII. Types of fits -- IX. Gear blank calculationsView a full description of this book.
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LATHES
SECTION V
GENERAL LATHE OPERATIONS
General_--
Facing-
Centering work___
Grinding centers______
Alining centers________
Straight turning_
Shoulder turning _______
Taper turning__________
Taper boring
Knurling __---- --
Parting-- --
Filing and polishing-
Radius turning and boring_
Spring winding on lathe___Paragraph
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WOPRK o BE ACFIGURE 24.-Tool bit position for facing.
22. General.-While most turning jobs differ in nature, many
fundamental operations are carried on in the same manner for all
classes of work. These may be considered as general operations and
will be described in subsequent paragraphs.
23. Facing.-a. Square finishing of the ends of the work to a
desired length is referred to as facing and may be done either in the
lathe chuck or between centers.
b. In order to face a surface in a lathe, the cutting edge of the
tool bit must be set at the center of the axis of rotation to obtain a
smooth surface. The point of the tool bit may be raised or lowered
by shifting the tool post rocker (fig. 34), which is used to support the37
TII 1-420
22
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United States. Army. Air Corps. Lathes, book, November 29, 1940; Washington, D.C.. (https://digital.library.unt.edu/ark:/67531/metadc96655/m1/39/?rotate=90: accessed April 23, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.