09-05-2012, 01:10 PM
DESIGN FOR MANUFACTURING
DESIGN FOR MANUFACTURING.pptx (Size: 555.33 KB / Downloads: 43)
INTRODUCTION
The final cost of a product is largely determined during its design stage
It reveals the need for a well-thought out design
It considering manufacturing issues at the early design stages.
Reduce the manufacturing cost by simultaneously increases the quality of the product, development time, and developing cost.
WHAT IS DFM
DFM was defined by Stoll (1990) as “the full range of policies, techniques, practices, and attitudes that cause a product to be designed for the optimum manufacturing cost, the optimum achievement of manufactured quality, and the optimum achievement of life-cycle support, serviceability, reliability, and recyclability.”
DFM focuses on a particular manufacturing process
Incorporate into the early product design measurements
It prevents the manufacturing problems and simplify the production process
WHY DFM
Design affects 80% of total cost incurred in product development.
Now a day’s many markets are highly competitive.
A product vulnerability to competition may be revealed by how much better the product could be designed for:
The same function at lower cost.
Better quality and reliability.
Better delivery.
More responsive to customer needs.
Faster development of products.
DIFFERENCE BETWEEN TRADITIONAL DESIGN AND MANUFACTURING
Traditionally design and manufacturing are separate activities.
DFM pull design and manufacturing together during the early stage of designing.
It reminds the designers to think about the manufacturing issues of the product
DESIGN FOR PART ORIENTATION AND HANDLING
Parts should easily indicate orientation for insertion
Parts should have self-locking features
Or, provide marks (indentation) to make orientation easier.