Wind Energy

In: Business and Management

Submitted By dharmil5
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Introduction to Design for (Cost Effective) Assembly and Manufacturing

Source: David Stienstra (Rose-Hulman)

Purpose Statement
To provide an overview of Design for Manufacturing and Assembly (DFMA) techniques, which are used to minimize product cost through design and process improvements.

Objectives
 Participants will understand:
– Differences and Similarities between Design for Manufacturing and Design for Assembly – Describe how product design has a primary influence – Basic criteria for Part Minimization – Quantitative analysis of a design’s efficiency – Critique product designs for ease of assembly – The importance of involving production engineers in DFMA analysis

Design for Assembly
Definition: DFA is the method of design of the product for ease of assembly. ‘…Optimization

of the part/system assembly’ DFA is a tool used to assist the design teams in the design of products that will transition to productions at a minimum cost, focusing on the number of parts, handling and ease of assembly.

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…’
DFA is a tool used to select the most cost effective material and process to be used in the production in the early stages of product design.

Differences
Design for Assembly (DFA)  concerned only with reducing product assembly cost
– minimizes number of assembly operations – individual parts tend to be more complex in design

Design for Manufacturing (DFM)  concerned with reducing overall part production cost
– minimizes complexity of manufacturing operations – uses common datum features and primary axes

Similarities
 Both DFM and DFA seek to reduce material, overhead, and labor cost.  They both shorten the product…...

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