E- Swaging and Thread Rolling Flashcards
What is the process that uses multiple dies that close on the part along radial paths. can be done with large machines or HAND TOOLS?
SWAGING
What is a metal ring or cap that strengthens the end of a cable and prevents it from splitting or wearing?
FERRULE
What are the tools used as a pumping action for deforming ferrous metals called?
HYDRAULIC SWAGING TOOLS
What is an oversized pair of pliers that uses a compound lever action to generate large forces between the jaws (dies)?
HAND SWAGING TOOL
What tool is hollow, but suddenly transitions from a hexagonal hole to a square hole and is preferred to be manufacture by SWAGING??
SOCKET of a RATCHET SOCKET WRENCH SET
How are holes created in SWAGING? It is a metal tool around which other metal is formed, mirrors the internal cavity of the part?
MANDRELS
What must be done to metal parts before being put through SWAGING?
OPEN DIE FORGED to create a WROUGHT STRUCTURE
What is the process that allows long lengths of material to be SWAGED? A ring of cam followers is rotated while being driven inwards and outward.
ROTARY SWAGING
How are “cold hammer forged barrels” for long guns made?
ROTARY SWAGING
How is a Philips head screwdriver made?
SWAGING, doesn’t need a MANDREL because it is solid, not hollow
Name the process where discrete products can be created between rotating dies (rollers) with an evolving shape attached around their perimeter.
ROLL-FORGING
What is an example of ROLL-FORGING used to make steel balls for use in bearings. Two conical rollers with helical grooves of semicircular cross-section are offset at an angle ?
SKEW ROLLING
What is another word for angled?
SKEWED
What is a process that produces very long lengths of stock material using dies in the form of ROLLERS?
ROLLING
What crushes the CAST STRUCTURE and turns it into a WROUGHT STRUCTURE, to reduce thickness?
ROLLERS
Name the process where molten metal is formed into SLABS which then enters into the ROLLER stages which is non-stop.
CONTINUOUS CASTING
What material is rolled using smooth and featureless rollers?
SHEET/PLATE STOCK
What is rolling done at temperatures above recrystallization to avoid microcracking called?
HOT ROLLING
What is an ADVANTAGE of ROLLING?
it provides stock with forged-like strength, inexpensive, long pieces of stock
What are facilities where ROLLING is performed called?. these buildings can be up to 1/4 miles long.
ROLLING MILLS
What is the final result of rolling processing called?
HOT ROLLED PLATE or SHEET
What is the difference between PLATE and SHEET material?
PLATE material must be stacked flat
SHEET material can be coiled
What is the black/gray coloration that forms on the surface of metal at elevated temperatures?
MILL SCALE/ BLACK IRON OXIDE
What are the additional processing steps that turn HOT ROLLED STEEL into COLD ROLLED STEEL?
ANNEALING & PICKLING, TEMPER ROLLING
What is the process called where the mill scale is removed?
PICKLING
Name the process that reduces the thickness by a few thousandths of an inch at room temperature?
TEMPER ROLLING
Name a softening heat treatment of the hot rolled steel
ANNEALING
Name a ROLLING DEFECT.
wavy edges
zipper cracks in the center of the flat rolling
edge cracks
alligatoring
Name the ROLLING DEFECT where the end of the rolled product resembles the open jaws of an alligator. It is caused by the upper and lower surfaces of the material getting attached to the rollers.
ALLIGATORING
Name the process used to create large circular workpieces using rollers
RING ROLLING
Name the process done with linear style dies or with more traditional rollers similar to those in ROLL-FORGING.
SPLINE ROLLING
What are grooves used to concentrically attach shafts together for torque transmission, and require proper grain flow for strength?
SPLINES
What process uses grooved rollers to create STRUCTURAL STOCK from cast “bloom”, but can include a variety of additional rollers of various sizes, shapes, and orientations to form the required cross-sections?
SHAPE or PROFILE ROLLING
What is the process where ROLLERS with helical grooving or LINEAR DIES with angled grooves create the threads of a bolt to be strong?
THREAD ROLLING
What process will always produce weak, smooth, sharp, precise threads, and will result in a major diameter EQUAL to the shank.?
CUTTING THREADS
What process is very strong, more rounded, and result in a major diameter that is LARGER than the shank.
ROLLED THREADS
What is the “best of both worlds” between ROLLED and CUT THREADS?
PRECISION BOLTS
