4. Production

Question 1

Whats the difference between parts manufacturing and assembly?

Answer 1

• Parts Manufacturing: manufacture of components with specified material properties and dimensions; different methods
• Assembly: assembly parts; assemblies into products

often used interchangeably

Question 2

The choice of manufacturing method depends on…

Answer 2

…the number of items to be produced.

Question 3

Definitions

1. Economies of Scale
2. Economies of Scope

Answer 3

1. utilizing scaling effects; increasing production volume of a good leads to falling manufacturing costs per good; fixed cost degression, specializsation (about THE SAME PRODUCT)
2. advantages from utilizing existing production factors for making additional products (horizontal, bundling effect) -> extending scope of work of equipment / utilizing production factors to upstream or downstream activities (what can i do later and what now?) (BROADER field of ACTIVITIES)

Question 4

Economies of scale / scope | For which types are they favorable:

1. single item production
2. mass production

Answer 4

1. increasingly dynamic markets call for scope in variety (how can we best utilize out manufacturing equipment?) -> for high nr. of differentiated products
2. production strives to exploit economies of scope

Question 5

Differentiate:

1. functional oriented organisation (shop fabrication)
2. flow oriented organisation

Answer 5

1. same technologies are grouped in same geographical area
2. grouping by process flow; grouped by value stream (less transportation; low batch sizes; less flexibility)

Question 6

Difference between flow production and transfer line?

1. Flow
2. transfer

Answer 6

1. discontinuous flow; no production during transport (e.g. i work on all my 5 apples, then give them to the next, etc), buffers needed
2. continuous material flow (e.g. i work on my apples one by one and give them to the next worker); connected whole automated system

Question 7

What are some benefits/ characteristics of working according to the C-cell assembly?

1.
2.
3.

Answer 7

• semi-autonomous work groups
• no automation
• easy throughput flexibility by modifying staff deployment

Question 8

What´s CHAKU-CHAKU?

1.
2.
3.
4.
5.
6.

Answer 8

• like u-cell, but machine based manufacturing
• depreciated simple assets that each do 1 thing
• no automation for transport but manual transfer
• low stocks without WIP buffers
• low space equipment
• BUT needs high availability for the machinery

Question 9

When should you use a flexible manufacturing system?

Answer 9

• use for large quantities in high labor cost areas
• consists of many controlled machines
• high degree of automation