head

en-noun

head (countable and uncountable, plural heads or head)

heads (plural)
head (plural)
heed (alternative obsolete)
hed (alternative obsolete)
'ead (alternative UK pronunciation-spelling)

→ Japanese: ヘッド (heddo)

Sranan Tongo: ede

Aukan: ede

Saramaccan: hédi

Etymology tree
Proto-Indo-European *kap-
Proto-Indo-European *káput-
Proto-Germanic *haubudą
Old English hēafod
Middle English heed
English head
From Middle English hed, from Old English hēafd-, hēafod (“head; top; chief”), from Proto-West Germanic *haubud, from Proto-Germanic *haubudą (“head”), from Proto-Indo-European *káput.
The modern word comes from Old English oblique stem hēafd-; the expected Modern English outcome for hēafod would be *heaved (similar to the Middle English word). Doublet of cape, capo, caput, chef, chief, and Howth.
Cognate with Scots heid, hede, hevid, heved (“head”), Old English hafola (“head”), North Frisian hood (“head”), Dutch hoofd (“head”), German Haupt (“head”), Swedish huvud (“head”), Danish hoved (“head”), Icelandic höfuð (“head”), Latin caput (“head”), Sanskrit कपाल (kapāla, “skull”), Hindi कपाल (kapāl, “skull”).

頭

つぶり, tsuburi, つぃぶる, tsiburu, つぃぶるぃ, tsiburi

pää

have one's head screwed on the right way

know one's head from a hole in the ground

run around like a chicken with its head cut off

would lose one's head if it wasn't attached

would lose one's head if it wasn't bolted on

would lose one's head if it wasn't glued on

would lose one's head if it wasn't screwed on

would lose one's head if it wasn't stuck on

would lose one's head if it wasn't tied on

would lose one's head if it weren't attached

you can't put an old head on young shoulders

you can't put a wise head on young shoulders

(countable) The topmost, foremost, or leading part.

(countable) The principal operative part of a machine or tool.

(machining) A milling head, a part of a milling machine that houses the spindle.


tenth

From Middle English tenth, tenthe. Old English had tēoþa (origin of Modern English tithe), but the force of analogy to the cardinal number "ten" caused Middle English speakers to recreate the regular ordinal and re-insert the nasal consonant. Ultimately from Proto-Germanic *tehundô. Equivalent to ten (numeral) + -th (suffix forming ordinals).

af

(machining) A tenth of a mil; a ten-thousandth of an inch.


lash

setting the proper valve lash for solid lifters

excessive lash in the gear train

(machining, mechanical) Looseness between fitted parts, either intentional (as allowance) or unintentional (from error or wear).


walk

en-verb

walk (third-person singular simple present walks, present participle walking, simple past and past participle walked)

walks (present singular third-person)
walking (participle present)
walked (participle past)
walked (past)
walk (infinitive)
walk (first-person present singular)
walked (first-person past singular)
walk (present second-person singular)
walkest (archaic present second-person singular)
walked (past second-person singular)
walkedst (archaic past second-person singular)
walks (present singular third-person)
walketh (archaic present singular third-person)
walked (past singular third-person)
walk (plural present)
walked (past plural)
walk (present subjunctive)
walked (past subjunctive)
walk (imperative present)
walking (participle present)
walked (participle past)

Chinese Pidgin English: walkee

From Middle English walken (“to move, walk, roll, turn, revolve, toss”), a conflation of Old English wealcan (“to move round, revolve, roll, turn, toss”) (ġewealcan (“to go, traverse”)) and Old English wealcian (“to curl, roll up”); both from Proto-West Germanic *walkan, from Proto-Germanic *walkaną, *walkōną (“to twist, turn, roll about, full”), from Proto-Indo-European *walg- (“to twist, turn, move”).
Cognate with Scots walk (“to walk”), Saterland Frisian walkje (“to full; drum; flex; mill”), West Frisian swalkje (“to wander, roam”), Dutch walken (“to full, work hair or felt”), Dutch zwalken (“to wander about”), German walken (“to flex, full, mill, drum”), Danish valke (“to waulk, full”), Latin valgus (“bandy-legged, bow-legged”), Sanskrit वल्गति (válgati, “amble, bound, leap, dance”). More at vagrant and whelk. Doublet of waulk.

cog

(machining, intransitive, of a tool, such as a drill bit or reamer) To tend to move radially while feeding axially, whether tending toward on-center or tending toward off-center. Walking may be desirable (e.g., when a reamer walks into concentricity) or undesirable (e.g., when a twist drill walks into eccentricity.)


pedestal

Borrowed from Middle French piédestal, itself borrowed from Italian piedistallo (literally “foot stand”). Spelling influenced by Latin pēs, pedem.

der

(machining) A pillow block; a low housing.


cutting

en-noun

cutting (countable and uncountable, plural cuttings)

Boring, drilling, milling, and turning are all different kinds of metal cutting processes.

Metal-cutting tools often have two cutting edges, both of which are angled to the direction of cutting, and in round-nosed tools the inclination continuously varies [...].

2009, Tony Atkins, “Slice–Push Ratio: Oblique Cutting and Curved Blades, Scissors, Guillotining and Drilling”, in The Science and Engineering of Cutting: The Mechanics and Processes of Separating, Scratching and Puncturing Biomaterials, Metals and Non-metals, Oxford, Oxfordshire, Amsterdam: Butterworth-Heinemann, →ISBN, section 5.1 (Introduction), page 111:

(uncountable, machining) The process of bringing metals to a desired shape by chipping away the unwanted material.


turret

From Middle English touret, from Old French torete (French tourette), diminutive of tour (“tower”), from Latin turris. Doublet of tor, tourelle, and tower. See tower.

оръдейна кула

a revolving tower constructed of thick iron plates

(machining, manufacturing) A turret head.


workpiece

LL-Q1860 (eng)-Naomi Persephone Amethyst (NaomiAmethyst)-workpiece.wav

Make sure the workpiece is properly secured in the chuck before turning on the lathe.

It is theorized that when the surface velocity is below certain minimum values the material at the interface between workpieces WP-1 and WP-2 rolls up and extrudes from the interface in the form of long twisted cylindrical projections which are sometimes referred to as "dingle-berries."

1967, M.R. Calton, Welding of Dispersion-Strengthened Alloys, US Patent 3477117, page 6:

If the operator violates this instruction and, for example, tries to slightly move the workpiece while the robot is screwdriving it, then the execution may be interrupted […]

2019, Maurice H. ter Beek, Alessandro Fantechi, Laura Semini, From Software Engineering to Formal Methods and Tools, and Back, page 113:

(machining, woodworking) The raw material or partially finished piece that is shaped by performing various operations.

obrobek

The material or partially finished piece on which a tool operates.


hog

en-verb

hog (third-person singular simple present hogs, present participle hogging, simple past and past participle hogged)

hogs (present singular third-person)
hogging (participle present)
hogged (participle past)
hogged (past)
'og (alternative UK dialectal)

From Middle English hog, from Old English hogg, hocg (“hog”), possibly from Old Norse hǫggva (“to strike, chop, cut”), from Proto-Germanic *hawwaną (“to hew, forge”), from Proto-Indo-European *kewh₂- (“to beat, hew, forge”).
Cognate with Old High German houwan, Old Saxon hauwan, Old English hēawan (English hew). Hog originally meant a castrated male pig, hence a sense of “the cut one”. (Compare hogget for a castrated male sheep.) More at hew.
Alternatively from a Brythonic language, from Proto-Celtic *sukkos, from Proto-Indo-European *suH- and thus cognate with Welsh hwch (“sow”) and Cornish hogh (“pig”).

der

(machining) To take a rough cut, quickly removing material; to hog out.


shaper

From Middle English shapper, shapere, schapare, scaper, scheppere, schuppere, alteration (perhaps due to Old Norse skaperi, skapari) of Old English sċyppend, sċieppend (“shaper; maker; creator”), equivalent to shape + -er. Cognate with Dutch schepper, German Schöpfer, Danish skaber, Swedish skapare, Icelandic skapari.

en:machine tool with linear single-point cutting

(agent noun) Any agent that shapes (something), whether literally or figuratively.

(machining) A machine tool in which a single-point cutting tool mounted on a reciprocating ram is traversed across the workpiece linearly. Shapers can generate various shapes, but were most especially employed in generating flat surfaces and keyways. The shaper is nowadays obsolescent, most of its applications being served by milling machines.


thrill

en-verb

thrill (third-person singular simple present thrills, present participle thrilling, simple past and past participle thrilled)

thrills (present singular third-person)
thrilling (participle present)
thrilled (participle past)
thrilled (past)

(machining) To drill and thread in one operation, using a tool bit that cuts the hole and the threads in one series of computer-controlled movements.


milling

en-noun

milling (countable and uncountable, plural millings)

Any of various grinding, cutting, or shredding processes using any of various types of mill.

(machining) A type of machining in which a rotary cutter is moved through a toolpath to cut away material.


touch off

en-verb

touch off (third-person singular simple present touches off, present participle touching off, simple past and past participle touched off)

touches off (present singular third-person)
touching off (participle present)
touched off (participle past)
touched off (past)

déclencher

to cause, especially used for unstable situations that may magnify if disturbed

A traditional method of touching off uses a piece of thin paper placed between the tool and workpiece.

(machining) To establish a reference coordinate or datum, by moving the tool head to just touch the workpiece or machine bed.


machine tool

LL-Q1860 (eng)-Flame, not lame-machine tool.wav

(machining, manufacturing) A tool, typically a power-driven machine and typically stationary, used especially for machining (removing hard material via cutting, grinding, or other subtractive processes) and (more broadly) for any mix of subtractive, forming/stamping, or additive work.


milling machine

en-noun

milling machine (plural milling machines)

(machining, manufacturing, idiomatic) A machine tool in which a rotating cutter is moved against the workpiece (or vice versa) in order to cut the latter to a desired shape.


run-on

(machining) The period when a power saw or other tool continues to run after being powered off.


hogging

(machining) Making a rough cut to quickly remove material


hogging

hogging pass, hogging cutter


square up

en-verb

square up (third-person singular simple present squares up, present participle squaring up, simple past and past participle squared up)

squares up (present singular third-person)
squaring up (participle present)
squared up (participle past)
squared up (past)

(transitive, machining, die making) To mill (blocks, inserts, etc) into precisely square condition.


chipless

(machining) That cuts or forms a material without producing chips.


tommy bar

pin spanner

tool involving an analogous male cylindrical portion

(engineering, machining) A cylindrical iron or steel bar used as a lever.

A short bar put through the hole in a socket spanner or box spanner to provide leverage.

A set of two tommy bars is the standard tooling for the spindle nose threads of some minilathes and minimills.

A bar used to loosen or tighten some types of chucks and tool holders on machine tools such as lathes or milling machines.

crowbar

hooked bars, differentiated from tommy bars


toolpath

toolpaths (plural)
tool path (alternative)

(machining) The path through space that the tip of a cutting tool follows on its way to producing the desired geometry of the workpiece.


heavy machinery

You shouldn't operate heavy machinery without a licence.

The heavy machinery industry of China, including the manufacture of iron and steel plant, rolling mill, heavy—duty forging and pressing machinery, large forgings and castings, etc., developed along a hard and tortuous road from small products to huge ones, from single machines to complete plants after the birth of New China.

1991, China Machinery Industries Yearbook, page 35:

Completion of the railroad allowed heavy machinery to be brought to the mine, including a 40-meter rotary kiln.

1998, Paul Garvin, Iowa's minerals: their occurrence, origins, industries, and lore:

(construction, machining) Industrial machinery specially designed to execute construction tasks, most frequently involving earthwork operations.

raskas koneisto

industrial machinery that is large and heavy


toolpathing

(machining) The selection or configuration of a toolpath.


turning tool

(machining) A cutting tool for turning (cutting external diameters and faces) as opposed to boring (cutting internal diameters and faces); especially, a single-point cutting tool fur such purpose.


barfeeder

(machining) A type of feed (feeder) for machine tools such as lathes, turning centers, and Swiss-turns, which holds multiple bars of bar stock and feeds each bar, in turn, into the machine.


grinding machine

en-noun

grinding machine (plural grinding machines)

(machining, manufacturing, idiomatic) A machine tool in which a rotating grinding wheel is moved against the workpiece (or vice versa) in order to cut the latter to a desired shape.


self-centering

self-centering reamer

(machining, of a tool) Tending to walk toward the proper center of a hole when cutting.


shaving tool

(machining) An implement that removes a small amount of material around the edges of a previously blanked stamping or piercing.