1. Manufacturing Process
Introduction to Engineering Design
© 2016 Project Lead The Way, Inc.

2. What is an assembly line?
A line of workers (or robots) and machines in a production setting. Each worker has a task. The process moves from worker to worker until the product is completed. Henry Ford is credited with introducing new mass- production methods, including large production plants, the use of standardized parts and, in 1913, the world’s first moving assembly line for cars.
Reference videos:
The Assembly Line: Then and Now -
Assembly Line: Crayola Crayons -
Citations
History.com Staff. (2009). Henry Ford. Retrieved May 05, 2016, from

3. Planning an assembly line
Product design
What product is being manufactured?
Manufacturing process design
How is the product being produced?
Schedule design
What quantity is required to be produced?
There are three phases of planning an assembly line:
First, consider the product to be manufactured and what materials are required.
Second, consider how the product needs to be manufactured. Break down the part into steps for construction? How many parts are there? How many workers are assigned to work on the assembly line?
Third, schedule the assembly line. It is important to know how many of a product (quantity) need to be produced before the line begins work so the correct number of parts are available and organized at each station (step of the process).

4. Manufacturing Process Design
Process flow diagram – used to plan out and document the steps in a manufacturing assembly line.
Define the process to be developed
Determine constraints (time, equipment, cost)
Brainstorm the steps that need to occur to construct the product
Organize the steps in sequence
Draw arrows to show the final process flow
Use the steps shown in the diagram as the process for designing a manufacturing process.
Note that a process flow diagram is an example of a conceptual model (connects into to Unit 4).

5. Example Process Flow
This example process flow details and maps out the steps for an assembly line producing peanut butter and jelly sandwiches.
Notice the following:
- All the steps are numbered

6. Example Process Flow
This example process flow details and maps out the steps for an assembly line producing peanut butter and jelly sandwiches.
Notice the following:
- All the steps are numbered
- Arrows show the sequence of the flow

7. Example Process Flow
This example process flow details and maps out the steps for an assembly line producing peanut butter and jelly sandwiches.
Notice the following:
- All the steps are numbered
- Arrows show the sequence of the flow
- Step details include materials and tools needed