Page 1754 - All Industrial Tool Supply | General Catalog

Definitions
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abrasive- (Natural=sandstone, emery, bastard-Threads, parts, tools and sizes burnishing-The process of finishing a chamfer-The bevel or angular surface
corundum, diamonds or artificial= that are not standard, such as ‘bastard metal surface by contact with another cut on the edge or a corner of a machined
silicon carbide, aluminum oxide) material nuts’, ‘bastard plus’, ‘bastard fittings’, and harder metal to improve it; to make a part.
used for making grinding wheels, so forth. Also known as a standard coarse surface smooth or glossy by or as if by chasing threads-Cutting threads in a lathe
sandpaper, abrasive cloth, and lapping cut file. rubbing; polish. or screw machine.
compounds. bearing-Rollers/balls placed between burr-The sharp edge left on metal after chatter-The vibrations caused between
abrasive wheels-Wheels of a hard moving parts to reduce friction & increase cutting or punching also, a rotary cutting the work and the cutting tool which leave
abrasive, such as Carborundum used tool life. tool designed to be attached to a drill. distinctive tool marks on the finished
for grinding. bed-One of the principal parts of a machine bushing-A sleeve or a lining for a bearing surface that are objectionable.
acme thread-A screw thread having a 29° tool, having accurately machined ways or a drill jig to guard against wear. chipbreaker-A small groove ground back
included angle. Used for feed and adjusting or bearing surfaces for supporting and caliper-A device used to measure inside or of the cutting edge on the top of a cutting
screws on machine tools. aligning other parts of the machine. outside dimensions. tool to keep the chips short.
acute angle-An angle that is less than 90°. bell mouth-The flaring or tapering of caliper, gear tooth-A special caliper used chipping-The process of cutting metal with
adapter-A tool holding device for fitting a machined hole, usually made at the to measure both the ‘choral thickness’ and a cold chisel and hammer.
together various types or sizes of cutting entrance end because of mis alignment or the depth of a gear tooth. chuck, independent jaw-A chuck, each of
tools to make them interchangeable on spring of the cutting tool. cam-A device for converting regular to whose jaws, (usually four) is adjusted with
different machines. bevel-Any surface that is not at right irregular rotary or reciprocating motion. a screw action independently of other jaws.
addendum-That portion of a gear tooth angles to another surface. Also, the name carbide tool bits-Lathe cutting tools chuck, universal (self-centering chuck,
that extends from the pitch circle to the given a tool used for measuring, laying out to which carbide tip inserts have been concentric chuck)-A chuck whose jaws
outside diameter. or checking the accuracy of work machined brazed, to provide cutting action on harder are so arranged that they are all moved
align-To adjust or set to a line or a center. at an angle or bevel. materials than high speed cutters are together at the same rate by a special
allowance-The prescribed difference in bit, tool (cutter)-A hardened steel bar capable of. wrench.
dimensions of mating parts to provide a or plate that is shaped according to the carbon steel-A broad term applied to tool circular pitch-The distance measured on
certain class of fit. operation to be performed and the material steel other than high-speed or alloy steel. the pitch circle from a point on a gear tooth
alloy-Metal formed by a mixture of two or to be machined. carborundum-A name for an abrasive to the same point on the next gear tooth.
more different metals. blind bole-A hole made in a workpiece that compounded of silicon & carbon (silicon clearance-The distance or angle by which
angle iron-An iron or steel structural does not pass through. carbide). one objector surface clears another.
member that has been cast, rolled or block, Jo-Shop-name for a Johannson carbonizing-Process of adding carbon to clearance angle-The angle between
bent (folded) so that its cross section is gage block, a very accurate measuring the outer surface of steel to improve its the rear surface of a cutting tool and the
L-shaped. device. quality. surface of the work at the point of contact.
annealing-The controlled heating and blowhole-A defect in a casting caused by carriage-Part of a lathe that carries the climb milling-A method of milling in which
cooling of a metal to remove stresses and trapped steam or gas. cutting tool and consists of the saddle, the work table moves in the same direction
to make it softer, more malleable and easier blue vitriol copper sulfate-A layout compound rest and apron. as the direction of rotation of the milling
to work. solution which turns a copper color when case hardening-A heat treating process, center. Sometimes called down cutting or
anvil-Iron or steel block upon which applied to a clean metal surface. basic ally carbonizing that makes the down milling.
metal is forged or hammered. Also the fixed bond-The material that holds the surface layer or case of steel substantially clutch, friction (friction coupling)-A
jaw on a micrometer against which parts abrasive grains together to form a grinding harder than the interior or core. shaft coupling used where it is necessary
are measured. wheel. castigated nut (castle nut)-A nut with to provide a connection that can be readily
apron-That portion of a lathe carriage that bore-To enlarge and finish the surface grooves cut entirely across the top face. engaged or disengaged while one of the
contains the clutches, gears and levers of a cylindrical hole via the rotating of a casting-A part made by pouring molten shafts is in motion.
for moving the carriage. Also protects the boring bar (cutting tool) or by the action of metal into a mold. cog-A tooth in the rim of a wheel-a gear
mechanism. a stationary tool pressed (fed) against the cathead-A collar or sleeve which fits tooth in a gear wheel.
arbor-A shaft or spindle for holding surface as the part is rotated. loosely over a shaft and clamped by cold-rolled steel-Steel that has been
cutting tools; most usually on a milling boring bar (cuffer bar)-A combination set screws. rolled to accurate size and smooth finish
machine. toolholder and shank. center-A point or axis around which when made. In contrast, hot-rolled steel
assembly-A unit of fitted parts that make boring tool-A cutting tool in which the anything revolves or rotates. In the lathe, may have a rough, pitted surface and slag
up a mechanism or machine, such as the tool bit, the boring bar, or the toolholder are one of the parts upon which the work to be inclusion.
headstock assemble of a lathe. incor porated in one solid piece. turned is placed. The center in a headstock collet-A precision work holding chuck
automatic stop-A device which may boss-A projection or an enlarged section is referred to as the ‘live’ center and the which centers finished round stock
be attached to any of several parts of a of a casting through which a hole may be one mounted in the tailstock as the ‘dead’ automatically when tightened. Specialized
machine tool to stop the operation of the machined. center. collets are also available in shapes for
machine at any predetermined point. brass-A nonferrous alloy consisting center gage-A small flat gage having 60° other than round stock.
axis-The line, real or imaginary, essentially of copper and zinc. angles that is used for grinding and setting color method-A technique of heat treating
passing through the center of an object brazing-Joining metals by fusion of non- the thread cutting tools in a lathe. It may metal by observing the color changes that
about which it could rotate; a point of ferrous alloys having a melting temperature also be used to check the pitch of threads occur to determine the proper operation to
reference. above 800°F, but below that of the metals and the points of center. perform to achieve the desired results.
babbitt-An anti-friction metal alloy used being joined. center, half male-A dead center that has a combination square-A drafting and layout
for bearing inserts; made of tin, antimony, brine-A saltwater solution for quenching or portion of the 60° cone cut away. tool combining a square, a level a protractor
lead and copper. cooling used when heat treating steel. center head-A part of a combination and a center head.
back gears-Gears fitted to a machine to Brinell hardness-A method of testing the square set that is used to find the center of compound (rest)-The part of a lathe set
increase the number of spindle speeds hardness of a metal by controlled pressure or to bisect a round or square on the carriage that carries the tool post
obtainable with a cone or step pulley belt of a hardened steel ball of a given size. workpiece. and holder. It is designed to swing in any
drive. broach-Long, tapered cutting tool with center, live-A center that revolves with direction and to provide feed for turning
back rake-The angular surface ground serration's which, when forced through the work. Generally this is the headstock short angles or tapers.
back from the cutting edge of cutting tools. a hole or across a surface, cuts desired center; however, the ball bearing type concave-A curved depression in the
On lathe cutting tools, the rake is positive if shape. tailstock center is also called a live center. surface of an object.
the face slopes down from the cutting edge bronze-A non-ferrous alloy consisting center punch-A pointed hand tool made of concentric-Accurately centered or having
toward the shank and negative essentially of copper and tin. hardened steel and shaped like a pencil. a common center.
if the face slopes upward toward the buff-To polish to a smooth finish of high ceramic-Type of cutting tool material cone pulley-A one-piece stepped pulley
shank. luster with a cloth or fabric wheel to which made of aluminum oxide or silicon carbide having two or more diameters.
backlash-The lost motion/ looseness a compound has been added. that is finding increased use where high contour-The outline of an object.
(play) between faces of meshing gears or bull gear-The large crank gear of speed and resistance to high temp and convex-The curved surface of a cylinder,
threads. a shaper. wear are factors. as a sphere when viewed from without.