Tc 9-524 fundamentals of machine tools


stop  - A device attached to a machine tool to limit the travel of the worktable and sometimes the work head. straddle milling



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tc9 524

stop 
- A device attached to a machine tool to limit the
travel of the worktable and sometimes the work head.
straddle milling 
- A milling setup where two side
milling cutters are spaced on an arbor to machine two
parallel surfaces with a single cut.
stress 
- The internal force or resistance developed in
steel which was hardened, extensively machined. or
cold worked.
surface grinding 
- The process of grinding flat
surfaces on a surface grinding machine. With special
setups, angular and form surfaces may also be ground.
surface plate 
- An accurately machined and scraped
flat metal piece (usually of cast iron) used to check
the flatness of surfaces.
swing 
- The dimension of a lathe determined by the
maximum diameter of the work that can be rotated
over the ways of the bed.
tailstock 
- That part of a machine tool. such as a lathe
or cylindrical grinder which supports the end of a
workpiece with a center. It may be positioned at any
point along the way of the bed, and may be offset
from center to machine tapers.
tang 
- The flat on the shank of a cutting tool, such as
a drill, reamer or end mill, that fits a slot in -the
spindle of a machine to keep the tool from slipping.
Also, the part of a file that fits into a handle.
Glossary - 15


TC 9-524
tap 
- A tool used to cut threads on the inside of a
round hole.
taper 
- A uniform increase or decrease in the size or
diameter of a workpiece.
tapping 
- The process of cutting screw threads in a
round hole with a tap (an internal thread cutting tool).
T-bolt 
- Term for the bolts inserted in the T-slots of a
worktable to fasten the workpiece or work-holding
device to the table.
tempering 
- A heat-treating process to relieve the
stresses produced when hardening and to impart
certain qualities‘, such as toughness-, sometimes
called “drawing.”

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