Design for Assembly
-
Upload
malcolm-scott -
Category
Documents
-
view
62 -
download
0
description
Transcript of Design for Assembly
![Page 1: Design for Assembly](https://reader036.fdocuments.us/reader036/viewer/2022082400/5455288eb1af9ff92a8b495b/html5/thumbnails/1.jpg)
Design for Assembly
By Malcolm Scott
![Page 2: Design for Assembly](https://reader036.fdocuments.us/reader036/viewer/2022082400/5455288eb1af9ff92a8b495b/html5/thumbnails/2.jpg)
Designing for the Assembly is designing with the assembly process in mind.
That includes how to cut cost, parts, and maximize the efficiency of how it is produced.
Design for Assembly
![Page 3: Design for Assembly](https://reader036.fdocuments.us/reader036/viewer/2022082400/5455288eb1af9ff92a8b495b/html5/thumbnails/3.jpg)
The first design for assembly method was by Hitachi called the Assembly Evaluation Method.
Based on a “One motion for one part” philosophy during assembly. If more complicated motions was required a point loss system was used.
Ease of assembly was evaluated on how many points were lost.
Origins
![Page 4: Design for Assembly](https://reader036.fdocuments.us/reader036/viewer/2022082400/5455288eb1af9ff92a8b495b/html5/thumbnails/4.jpg)
The original Design for Assembly method was developed by Geoff Boothroyd.
It could be used to estimate the time to manually assemble a product, and the the cost to have it automatically assembled.
Through this method it was realized that the key to reduce cost came through reducing the number of parts.
Origins (continued)
![Page 5: Design for Assembly](https://reader036.fdocuments.us/reader036/viewer/2022082400/5455288eb1af9ff92a8b495b/html5/thumbnails/5.jpg)
With it’s criteria, DFA could determine the quality of a design based on assembly vantage point.
Also determine which parts could be theoretically eliminated or combined with other parts.
It’s the most widely used method for assembly efficiency and has had the greatest industrial impact.
Benefits of DFA
![Page 6: Design for Assembly](https://reader036.fdocuments.us/reader036/viewer/2022082400/5455288eb1af9ff92a8b495b/html5/thumbnails/6.jpg)
Sony’s Walkman: uses Sony’s SMART design.
SWATCH watches. Both designed for fully automated
assembly. Walkman was designed for “vertical assembly”.
Example of Products