product design and development

1. PRODUCT DESIGN AND DEVELOPMENT
Topic: Design for X
Submitted By: Aftab Akhtar
Roll no: 20mmn005
Submitted to: Mr Amit kumar Sinha

2. DESIGN FOR EXCELLENCE (DFX)
• Design for Excellence or DFX is a systematic design approach that entails
wide range of guidelines and standards focused on optimizing the product
realization lifecycle.
• In reality, the term DFX is better thought of a Design of as Design for “X”
where the variable X is interchangeable with one of many values
depending on the particular objectives of the venture.

3. DESIGN FOR EXCELLENCE (DFX) CONT..
• These guideline ensures the issues related to manufacturing, cost, quality
assembly and serviceability are addressed at the design stage.
• If these guideline are not adhered during the design stage, it can lead to
engineering changes occurring at the later stages of product lifecycle
which are highly expensive and can cause product delays and cost over-
runs.

4. SUBSTITUTES FOR X INCLUDES:
• Design for Manufacturing(DFM)
• Design for Assembly (DFA)
• Design for Reliability (DFR)
• Design for Maintainability (DFM)
• Design for Environment (DFR)

5. DESIGN FOR MANUFACTURING
DEFINITION:
“DFM is the method of design for ease of manufacturing of the
collection of parts that will form the product after assembly”
“Optimization of the manufacturing process”

6. DESIGN FOR MANUFACTURING CONT..
• Design for manufacturing (DFM) is a development practice,
emphasizing manufacturing issues throughout the product
development process.
• Successful DFM results in lower production cost without
sacrificing product quality.

8. DFM METHOD
• Estimate the manufacturing costs.
• Reduce the costs of components.
• Reduce the cost of assembly
• Reduce the costs of supporting production
• Consider the impact of DFM decisions on other factors.

9. DESIGN FOR ASSEMBLY (DFA)
• DFA is the method of design of the product for ease of
assembly.
“Optimization of the part/system assembly”

10. DESIGN FOR ASSEMBLY (DFA) CONT..
• DFA is a tool used to assist the design teams in the design of
products that will transition to production at a minimum cost,
focusing on the number of parts, handling and ease of assembly.

11. DESIGN FOR ASSEMBLY PRINICIPLES
• Minimize part count
• Design parts with self-locating features
• Design parts with self-fastening features
• Minimize reorientation of parts during assembly

13. DESIGN FOR RELIABILITY (DFR)
• Reliability is defined as the probability that a component,
equipment or system will satisfactorily perform its intended
function under given circumstances.

14. DESIGN FOR RELIABILITY CONT..
Improving Reliability
• Making failures less likely to happen in the first place (e.g. By
maintaining the equipment properly or fitting more reliable equipment)
• Making changes such that the overall system continues to function
satisfactorily even when a failure occurs (e.g. By fitting standby
equipment)

15. DESIGN FOR MAINTAINABILITY & SERVICEABILITY
• The objective of Design for Maintainability is to assure that the design will
perform satisfactorily throughout its intended life with a minimum
expenditure of budget and effort. Design for maintainability (DFM)
• Design for Serviceability (DFS), and Design for Reliability (DFR) are
related because minimizing maintenance and facilitating service can be
achieved by improving reliability

16. AN EFFECTIVE DFM MINIMIZES
• The downtime for maintenance
• user and technician maintenance time
• personnel injury resulting from maintenance tasks
• cost resulting from maintainability features
• requirements for replacement parts, backup units, and personnel