4/29 Title and make a list

• What have you used today that was manufactured?

• The construction of many of the same item at one time, usually using assembly lines and interchangeable parts.

Lesson 2: Push Pull Manufacturing

• Purpose of the lesson:– To give students an understanding of basic

manufacturing and its impact on our society.

Manufacturing• The construction of many of the same

item at one time, usually using assembly lines and interchangeable parts.

What I Know What I want to know What I learned

4/29 Answer in a sentence

• How do you think manufacturing has improved our lives?

How does manufacturing affect our lives?

• Cheaper goods• Better quality goods• Jobs, jobs, jobs,• Higher standard of

living

• Food • Fuel• Shoes and Clothes• Cars• Modular Homes• Integrated Circuit

Chip• Pencils and Pens

Manufacturing Processes• The form of materials is changed by:

1. Separating

2. Forming

3. Combining

4. Conditioning

Durable Goods• Do not quickly wear out. • May be used over and over

– Cars– Bricks– Electronics

• Non-durables include:– Food– Clothing– Paper products

Steps in Manufacturing

• Turing raw materials into finished goods on a large scale.– Obtaining and preparing raw materials– Processing the materials mechanically or

chemically– Assembling– Testing– Inspecting– Packaging

Gathering Raw Materials• This is done using

three major methods.

– Mining

– Drilling

– Harvesting

Mining

• Mining involves digging resources out of the earth.– Open-pit mining: a type of

mining used when the resource is close to the surface.

– Underground mining: a mining method that uses digging tunnels to reach the material.

Drilling• A method used to

reach underground liquid resources such as oil and water.

• A small round hole is drilled using a derrick and a drill bit that grinds up the rock as it drills.

Harvesting• Harvesting is a method used to collect a

growing resource. Trees are the major “growing” resource that produce engineering materials.

Also harvested:•Cotton•Sugarcane and corn for ethanol

production

Push Production

• As each person finishes his/her job, it is pushed to the next person.

Faster production.

Increased chance of error - less quality.

Pull Production

• Each person does not start a new part until their last one has been pulled from them.

Increased quality.

Slower production.

Copy and Solve

Quality Control Rate =

What is QC rate when 50 shirts are made and only 40 pass inspection?

Number of ObjectsPassing Inspection

Total Number of Objects Made

X 100

QC = 40/50 X 100 = 80%

QC Rate of Pd 1 and 6

Push Pull

Total # made 200 143

# passing inspection

125 99

5/4 DrillUse the data sheet provided to answer the following:

- How did the amount of waste generated compare between Push and Pull production?

- Use data to support your answer.

• QC=

• QC= 125/200 X 100

= 12500/200 = 125/2 = 62.5%

Number of ObjectsPassing Inspection

Total Number of Objects Made

X 100

2/9• Copy this list of manufacturing

processes and give examples of each from our Mother’s Day Card Project.

Process Examples

Forming

Separating

Combining

Conditioning

Fold card

Cut along line, punch heart

Glue purple paper

Stamp