Foundation of tech final

Name the 2 general categories/types of metals discussed in class?

Ferrous, Nonferrous

Tiny bubbles are formed within the plastic during processing and remain when the plastic solidifies.

Foaming

Pattern is made from expandable polystyrene beads. Metal vaporizes foam and fills the cavity. Also called "lost foam casting", Patterns are cheap and complex parts can be cast. (engine blocks)

Full mold

Oldest method of casting. Accounts for about 80% of castings. This process is easily produced and is highly flexible.

Green-sand mold

Select the Joints used on our ShadowBox Project.

Half Laps and Rabbit Joints

Name the type of Primary Processing used to gather wood:

Harvesting

This metal is a special group of high carbon steels, these metals also contain large amounts of other elements.

High Alloy Steel

The walnut lumber you want to order costs $8.33 per board foot. Using the rounded amount of board feet you calculated from the question above, how much will you expect to spend on the lumber?

$97.88

You want to purchase 3 pieces of walnut measuring 1" thick x 8" wide x 70" long. How much board feet will you be ordering?

11.75

This was the year that plastic production surpasses steel production in the U. S.:

1979

[1] ft X [2] ft is the most common size for sheet stock (EWP) to be sold.

4'X8'

Deals with selling or providing a special service to consumers

Service Enterprise

Select 4 ways to bond/attach/fasten metal together.

Spot weld,Welding,Bolts, Rivets

Vertical channel used to get molten metal to part cavity.

Sprue

Select 3 types of ferrous metals.

Steel,Cast iron,High Alloy Steel

The wood pictured below is hard and smooth, has a closed grain feel, is a dark brown color, and has a distinct smell. The wood pictured below is? My favorite wood. Expensive.

Walnut

This metal is an alloy ingredient in making brass and is also used as a protective coating called galvanized.

Zinc

Select 3 types of nonferrous metals.

Zinc, Copper, Aluminum

Wears away material using random, multi-point cutting edges

abrading

Name for the size of lumber when it is dried and surfaced.

actual

Type of seasoning method when lumber is stacked outside to dry naturally.

air dried

Metals are rarely used in their pure form, they are usually a combination of metals called?

alloys

This metal is rarely used in its pure form, it is lightweight, strong and resistant to corrosion. Most common non-ferrous material used in casting.

aluminum

Secondary process used for woods that involves procedures such as bending and bonding.

forming

What is it called when you dip metal in zinc?

galvanized

This type of material gains and loses moisture based on its surroundings.

hygroscopic

Companies that produce parts and products

industrial enterprise

Pellets are melted in an extruder and forced into the cavity of a mold.

injection molding

Type of seasoning method where wood is stacked inside a temperature controlled oven to dry.

kiln dried

what type of joint is this

lap joint

The cells of a tree are held together by:

lignin

Measurement is in Length

lineal foot

Removing material with a tool having sharpened cutting edges spaced equally along a surface or cylinder

milling

What type of wood joint is in the picture below?

miter joint

The basic building block or basic molecule of plastics.

monomer

Select the two main sources of raw materials for plastics.

natural, synthetic

Name for the size of lumber when it is first cut.

nominal

Training by a manager that can be accomplished at an employee's workstation is which of the following?

on-the-job training

Wood flakes, chips, and shavings are bonded with resin under heat and pressure. Layers may be different size wood particles.

particle boards

Form part cavity, what the finished product will look like.

patterns

Measurement is in Area

piece

The resources and sequence of operations needed to complete a particular task are determined through which of the following?

planning

Layers (plies) of wood glued together with grain at right angles to each other.

plywood

Long chains of molecules connected together.

polymer

The chemical reaction that links monomers.

polymerization

The wood pictured below has open pores on it's end grain, and distinct medullary rays on it's end grain. The wood pictured below is? One of the most common, especially for cabinets.

red oak

Cutting with the grain of wood.

rip

Powdered resin is placed in a mold that rotates and revolves in an oven to create a sealed, hollow part.

rotational molding

Lumber that has not been sawn, trimmed to width, and edged.

rough

Horizontal channel to get molten metal to part cavity

runner/gate

Removing material with a tool that has pointed teeth equally spaced

sawing

Secondary process used for woods that involves procedures such as sawing, drilling, and abrading.

separating

Cutting using a single cutting edge moving through a fixed workpiece

shearing

What type of fastening/bonding do we use on our toolbox?

spot welding

What material is a type of high alloy steel made from chromium and nickel that is tough, hard, and is corrosion resistant?

stainless steel

What is the metal that is made up of mainly iron and carbon?

steel

Turning standard stock into useful materials is known as:

Secondary Processing

This metal looks like brass but is more difficult to machine.

Bronze

Which of the following contains 2-4% carbon, it is low in cost and wears well?

Cast iron

Softwoods are given their classification because they are:

Coniferous/Gymnosperms

Lumber that is surfaced on four sides.

S4S

Select 3 advantages of Plastics.

Corrosion resistant, High strength-to-weight ratio, Wide color

Hardwoods are given their classification because they are:

Deciduous/Angiosperms

Usesawaxpattern.Afteroutershellisformed the pattern is melted out. Patterns are clustered to a sprue. Patterns are dipped several times into a refractory slurry.

Investment

Why does copper turn green?

It is a protective coating that it applies to itself to protect against corrosion.

The wood pictured below is lightweight, has a straight grain with an even texture, and has small, tight knots. The wood pictured below is?

Knotty Pine

The wood pictured below is heavy, hard, has a white color, has a smooth, closed grain feel, and has clean and straight grain. The wood pictured below is? The table tops and Gym floor.

Maple

Wood chips are ground into small fibers, mixed with a mixture of glue and water. Then it's all squeezed, rolled, pressed and heat treated into sheets.

Medium fiberdensity board

What raw material is the main base ingredient in plastics?

Petroleum

Select the all of the Thermoplastics

Polypropolene, Polyethylene, PVC, Acrylic

Turning raw materials into standard stock is known as:

Primary Processing

Plywood plies are glued together with the grains at [1] angles to each other.

Right

Lumber that has been surface on two sides.

S2S

Lumber size is listed by:

Thickness x Width x Length

A preform is created, a mold closes around the soft preform and air is blown into the preform to take shape of the mold.

blow molding

Measurement is in Volume

board feet

Most common ferrous material used in casting.

cast iron

Pouring liquid resin into a mold without any pressure used and allowing the resin to solidify.

casting

This is the rigid tissue that makes up the cell walls of trees:

cellulose

Deals with providing consumers with products

commercial enterprise

this type of metal conducts heat and electricity well. Used extensively for wiring.

copper

What property of copper makes it suitable for plumbing?

corrosion resistant

Cutting across the grain of wood.

crosscut

There are no bad plastics, just bad: (Select two)

design, application

Using a rotary end-cutting tool with one or more cutting lips to produce a hole in solid material

drilling

This category of plastics can be stretched to twice their normal length, then return to their original length:

elastomers

Which of the following includes design interpretation and structural testing?

engineering

One example of a Thermoset would be:

epoxy

Name 2 properties of most metals.

expand when heated/contract when cooled strong, durable, tough, stable

Pellets are melted in an extruder and forced through a die, or shaping tool.

extrusion

Metals that contain iron as a main element are called

ferrous

Companies that provide services and products that deal with money and transfer of money.

financial enterprise

Holds the sand/mold,comprised of 2 pieces.

flask

A pre-formed plastic sheet is heated until soft, then forced against a mold using mechanical, air, or vacuum pressure.

thermoforming

This category of plastics are heat softening and cool hardening, and they can be remelted and reformed (like ice to water to ice):

thermoplastics

This category of plastics undergo an irreversible chemical reaction called crosslinking and cannot be reshaped and re-formed (like baking a cake):

thermosets

What metal is used in aerospace and bicycles because of its weight to strength ration.

titanium

One example of an Elastomer would be:

trade names

Plastics are usually identified by consumers through the use of common:

trade names

Cutting process in which a single cutting edge tool is fixed and work rotates

turning