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What is the definition of cold drawing?

A cold-working process that pulls a piece of metal through a smaller opening to compress and lengthen the metal. Cold drawing removes the scale that develops from hot working and creates accurate stock sizes.

Learn more about cold drawing in the class "Metal Manufacturing 140" below.

Metal Manufacturing 140

Materials Department

Class Information

Tooling U classes are offered at the beginner, intermediate, and advanced levels.
The typical class consists of 12 to 25 lessons and typically requires at least two hours of instruction time.

Class Name	Metal Manufacturing 140
Description	This class walks through the steps of metal manufacturing using steel as the example.
Prerequisites	none
Difficulty	Beginner
Number of Lessons	13

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Class Outline

Class Objectives

Objectives

The History of Metal Manufacturing

Metal Manufacturing Today

The Blast Furnace

Basic Oxygen Furnace

Electric Arc Furnace

Casting and Ingots

Continuous Casting

Initial Casting Shapes

Hot Working

Cold Working

Pickling, Annealing, and Carburizing

Summary

Describe the history of metal manufacturing.

Identify the materials involved in steel production.

Describe the operation of a blast furnace.

Describe the operation of a basic oxygen furnace.

Describe the operation of an electric arc furnace.

Define an ingot.

Define continuous casting.

Identify common casting shapes.

Describe hot working.

Describe cold working.

Define pickling, annealing, and carburizing.

Class Vocabulary

Term	Definition
alloy steel	Steel that contains added materials that change the property of the metal. Common alloy elements include chromium, manganese, molybdenum, and nickel.
annealing	The steady heating of a metal at a certain temperature followed by a gradual cooling process. Annealing can be done to restore ductility.
basic oxygen furnace	A type of furnace used during the steelmaking process that injects pure oxygen into a batch of pig iron and other materials to burn the contents and produce steel.
big-end down mold	A type of ingot mold that is wider at the base and narrower at the top. This shape makes it easier to remove the ingot once it cools.
billet	A small, semi-finished piece of metal that is rectangular, circular, or square in shape. Billets are smaller than blooms.
blast furnace	A tall furnace built with steel and brick that is used to produce pig iron from the original iron ore.
bloom	A semi-finished piece of metal that is rectangular or square in shape. Blooms are larger than billets.
carburizing	A surface hardening method that heats a metal within a carbon-rich environment to increase carbon levels on the metal surface.
cast	To pour a molten metal into a mold.
charge	The mix of material that is placed in a furnace.
coke	A carbon-based fuel used to heat the contents of a blast furnace.
cold drawing	A cold-working process that pulls a piece of metal through a smaller opening to compress and lengthen the metal. Cold drawing removes the scale that develops from hot working and creates accurate stock sizes.
cold rolling	A cold-working squeezing process that passes a flat piece of metal between two rolls to flatten and lengthen the metal.
cold working	The shaping of metal at temperatures much lower than the metal's molten state. Steel is often cold worked at room temperature.
continuous casting	The process of pouring molten metal into a mold that creates a long, continuous slab of metal, which is then separated into pieces at the end of the casting process.
die	A component with specific dimensions used to shape metal that is forced through or against it.
ductility	The ability of a metal to be drawn, stretched, or formed without breaking.
electric arc furnace	A type of furnace used during the steelmaking process that shoots electric arcs between electrodes to burn a combination of pig iron and other materials to produce steel.
electrical arc	A strong and sudden bolt of electricity.
hot rolling	A process that passes metal heated at elevated temperatures between two rolls to flatten and lengthen the metal. Hot rolling leaves a tough scale on the metal.
hot working	The shaping of metal at temperatures close to the metal's molten state. Steel is typically hot worked at temperatures approximately 1300°F (700°C).
impurities	An unwanted substance that reduces the quality of a material.
ingot	The first solidified piece of steel from which other parts are made.
ingot casting	The process of pouring molten metal into separate molds until the metal solidifies into ingots.
ingot mold	A container in which molten steel is poured that is designed to hold the steel until it solidifies.
iron ore	The natural form of iron, which is a combination of iron metal with other minerals and rocks.
limestone	A sedimentary rock that is used in blast furnaces to remove impurities from iron ore.
machinability	The ability of a metal to be shaped by machine processes such as milling, grinding, turning, or drilling.
manufacturing	The process of producing and shaping a product on a large scale, often through the use of large machinery.
molten	A metal in its liquid state.
pickling	The soaking of metal in an acid to remove the hardened scale that develops from hot working. Steel is often pickled before it is cold worked.
pig iron	The processed iron that is poured from a blast furnace. Pig iron still contains impurities.
raw material	An unprocessed material that has not been manufactured.
slab	a flat, semi-finished piece of metal that is at least twice as wide as it is thick.
slag	The rock-like waste that separates from pig iron and is removed from a blast furnace.
solidify	To change from a liquid to a solid.
stainless steel	An alloy steel that is designed to resist corrosion.
steel	A metal consisting of iron and carbon, usually with small amounts of manganese, phosphorus, sulfur, and silicon as well.
steelmaking process	The process used to make steel from pig iron and other materials.
stock	The raw material from which products are made through manufacturing.
strand casting	Another term for continuous casting.
tolerance	The unwanted but acceptable deviation from the desired dimension. Accurate dimensions require tighter tolerances.
tool steel	A type of steel designed with high wear resistance, toughness, and strength. Tool steels are used to make cutting tools, dies, and fixtures.
tundish	The device located at the top of a continuous caster that regulates the flow of molten steel.

What is the definition of cold drawing?

A cold-working process that pulls a piece of metal through a smaller opening to compress and lengthen the metal. Cold drawing removes the scale that develops from hot working and creates accurate stock sizes.Learn more about cold drawing in the class "Metal Manufacturing 140" below.

Metal Manufacturing 140

Materials Department

A cold-working process that pulls a piece of metal through a smaller opening to compress and lengthen the metal. Cold drawing removes the scale that develops from hot working and creates accurate stock sizes.

Learn more about cold drawing in the class "Metal Manufacturing 140" below.