Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
28 Cards in this Set
- Front
- Back
- 3rd side (hint)
|
What is Lean Manufacturing? |
"A systematic approach to identifying and eliminating waste (non value added activities) through continuous improvement by flowing the product through flow processes based on a signal from the customer" |
What are we trying to achieve with LM? How is it achieved? |
|
|
What are the 3 types of system defined in Lean Manufacturing? |
Push System Pull System Kanban System |
|
|
|
What is 5S? |
5S represents 5 Japanese words that describe the steps of a workplace organisation process:
1) Sort 2) Set 3) Shine 4) Standardise 5) Sustain |
|
|
|
What is Takt Time |
The available time to build/produce one unit for sale. This is worked out by available work time divided by customer demand. |
Equation and explain it |
|
|
What are the 7 types of defined waste in Lean Manufacturing? |
Transportation Inventory (Excess) Motion (Unnecessary) Waiting Overproduction Overprocessing Defects |
Tim Wood |
|
|
What is a U shaped cell layout and why is it advantageous to use one? |
A U shaped cell layout is a cell layout shaped like a 'U' which utilises one piece flow. It's advantage is that it's more compact meaning less unnecessary motion and material handling and better communication between work stations. |
|
|
|
Why is E-Waste a problem? |
Products are quickly obselete and discarded Composed of hazardous materials Difficult to recycle Managed badly Most E-Waste goes to landfills Most recyclers export their waste |
|
|
|
What are the 3 banned materials in the RoHS? |
Lead, Mercury and Cadmium |
|
|
|
Who are the generators of E-Waste? |
Small businesses and homes Large businesses Institutions and government offices Equipment manufacturers |
|
|
|
What are the 4 stages of Brady's Life Cycle Assessment |
1. Goal and scope definition 2. Inventory analysis 3. Impact assessment 4. Interpretation |
|
|
|
What are the aims of ISO 14000 |
Reduce the environmental footprint of businesses and to reduce the pollution and waste a manufacturer includes |
|
|
|
What are the benefits of following ISO 14000 |
Enhanced compliance with legislation Reduced costs associated with consumer audits Ability to bid for contracts Economic return from better resource use |
|
|
|
What are the End of Life Product Choices? |
1. Repair, refurbishment or reuse 2. Remanufacturing 3. Recycle with disassembly 4. Recycle without disassembly 5. Disposal to landfill |
|
|
|
What are the aims of the RoHS? |
An EU Directive that aims to reduce the levels of hazardous material in electrical and electronic equipment. Also lists hazardous substances to be avoided during design and manufacturing |
|
|
|
What are the aims of the WEEE Regulations? |
Reduce the amount of electrical and electronic waste produced and encourages designers to design products for reuse or recycling |
|
|
|
List the waste hierarchy |
Eliminate Reduce Reuse Recycle Dispose |
|
|
|
What is the definition of quality? |
ISO 9001 states that quality products must be useable, reliable and repairable |
|
|
|
Name some consequences of poor quality? |
Loss of business Liability Productivity decreases Costs |
|
|
|
Name the Quality Management activities? |
1. Product planning 2. Product design 3. Process design 4. Production 5. Sales 6. After-sales service (1-3 are Quality of Design) (4 is Quality of Conformance) (5+6 are Quality of Service) |
|
|
|
Name some quality characteristics? |
Functionality Appearance Recovery Durability Reliability Contact |
|
|
|
What is Taguchi's Loss Function? |
L(y) = k(y-m)^2 |
|
|
|
Define reliability |
The probability that no (system) failure will occur in a given time period. |
|
|
|
Define availability |
The probability that the system is operating properly when it is requested for use. |
|
|
|
Provide equations for reliability and probability of failure |
R = 1 - P P = Uptime/MTBF |
|
|
|
What is the equation for availablity? |
Ao = Uptime/(Uptime+Downtime) Ao = MTBF/(MTBF+MDT) |
|
|
|
Describe the engineering bathtub curve |
|
|
|
|
Explain the concept of yield in a production process? |
Yield is a measure of quality that represents the fraction (or percentage) of "good" parts resulting from an operation or process |
|
|
|
Name 3 major yield drivers in SMT processes? |
Incoming materials Manufacturing processes Lead free conversion |
|
