• Manufacturing is the changing of raw or processed materials into usable products.

• Manufacturing occurs in manufacturing plants, or factories.

Understanding technology in manufacturing is critical for several reasons:

1.Virtually everything that is done in a business depends on some type of technology.

2.Technology is evolving at an extremely rapid pace.

Understanding technology in manufacturing is critical for several reasons:

3.Technological innovation in manufacturing, is a competitive necessity.

• Hard technology refers to equipment and devices that perform a variety of tasks in the creation and delivery of goods and services.

• Soft technology is the application of the Internet, computer software, and information systems to provide data, analysis and to facilitate the creation and delivering goods and services.

• Consumer Product – “used up”

TV, books, food, etc.

• Industrial Product – “Used to make other products”

Steel, Lumber, tools, etc.

• An organized way of achieving a goal

• There are seven parts to a manufacturing system

What is a system?

Manufacturing System classification:

• Project

• Job shop

• Repetitive

• Line

• Continuous

Project:

• Products are complex

• Production quantities are often just one unit.

• Such as:

Oil refineries; Large buildings

Cruise ships; Large aircraft

Project:• Products are usually similar, though not

identical

• Layout is fixed-position

• Product remains in one location and production equipment and parts are moved to it.

• Assembly equipment must be mobile. Few robot applications are used.

Job Shop:

• Production quantities are small lots

• Size and weight of parts are small

• Parts are moved or routed between fixed production work cells for manufacturing processing.

• Most often, equipment used are lathes, mills, grinders, etc.

Job Shop:

• Less than 20% repeat production on the same part

• Products are not complex

• Product moves between machines a lot.

• Opportunities for Robotic applications are present but limited by the high variation in parts and products.

Repetitive:

• Orders for repeat business is 100%

• Customer contracts for multiple years

• High volume while production quantities vary over large range

• Little variation in the routings of parts between production machines

Repetitive:• Plant layout remains the same

• Product example:

10,000 water pumps per week with a 3 year Contract.

• Special-purpose production machines, automated systems with robots are integrated into the process

Line:• Delivery time to customer is often

shorter than the total time to build all individual parts of the product.

• Product has many different models

• Robots are frequently used.

• Inventory of subassemblies is usually present

• Example: Automobile assembly

Continuous:

• Time required for manufacture is longer than customer waiting time

• Demand is predictable

• Product inventory is always present

• High production volumes

• Products have few options

Continuous:• Plant layout is limited to one or just a

few different products

• Plant layout is Product-flow typeExample:

Input chemicals – output Nylon thread (continuous flow) or electrical components for automotive industry

• Robots can handle high-speed high-volume operation of this type

Manufacturing System Characteristics:

Project Job shop Repetitive Line Continuous

Process speed

Varies Slow Moderate Fast Very fast

Labor content

High High Medium Low Very low

Skill level High High Moderate Low Varies

Order quantity

Very small Low Varies High Very high

Unit quantity cost

Very large Large Moderate Low Very low

Routing variations

Very high High None Low Very low

Product options

Low Low None Very high Very low

Design component

Very large Large Very small Moderate small

1. Designing the product

2. Purchasing materials

3. Processing materials

4. Production

5. Packaging

6. Distribution

7. Sales

Manufacturing Steps

• To sell products, manufacturers must first design products that people will want and buy

• Engineers have to design a product to meet a specific need or want

Design

The process goes much more smoothly, and cost effectively if it:

• Uses readily available materials.

• Uses materials that can be recycled.

• Uses existing production processes.

Process

• Raw materials occur in nature. They are usually processed into industrial materials. Trees into lumber is a good example.

• Industrial materials are used to make products. Lumber into furniture for example.

Primary processes change raw materials into industrial materials.

• Mechanical processes use actions such as cutting or crushing.

• Thermal uses heating or melting.

• Chemical mixing materials and alters their characteristics.

Secondary processes turn industrial materials into finished products.

• Forming (rolling, casting, forging, stamping, extrusion)

• Separating (cutting)

• Combining (mixing, fastening, soldering, brazing, welding, coating)

• Conditioning (thermal, chemical)

• Both primary and secondary processes are used in manufacturing.

• Many different processing techniques may be needed to produce one type of product.

1. Custom production – Products are made to order, one at a time.

2. Job-lot production – Products are made in a specific quantity, such as a limited run of collector items.

There are 4 major types of Production

Production

3. Continuous production – Identical products are mass produced in large numbers.

4. Mass customization – This process combines elements of custom and mass production. Standard products are individualized. Minor alterations such as a store brand label.

There are 4 major types of Production

Production

Packaging

• Packaging is designed to continuously protect a product, from the time it is produced until the customer buys and uses it.

Distribution

Products may go to another manufacturer, a wholesaler, a retailer, or directly to the customer.

Wholesalers purchases in large quantities and then sells in smaller amounts to retailers.

Retailers sell products directly to their consumers.