Dfa Case Study

Section 01. Explain the positive features of DFMA relate to the product design.

The Term “DFMA” comes with the combination of DFA (Design for Assembly) and DFM (Design of Manufacturing) The standard concept of it is that the design technical engineers apply the DFMA paradigm or software to analyze the manufacturing and assembly problems at the early design stage. With this means, all of concerns about the factors that impact the final results occur at the initial possible time in the design cycle. The additional time spent in the first design stage is much less the time that will be spent in the repeatedly redesign. And in the meantime the cost will be reduced.

DFM is that by as the limitations familiar to the transaction at the early stage

Ford and Chrysler consider the DFM philosophy in their design and manufacturing process of the weapons, tanks and other armed forces products. Dr. Geoffrey Boothroyd and Dr. Peter Dewhurst who founded the Boothroyd Dewhurst, Inc.

In 1982 are the first persons doing the research job in this new technology at the beginning in the rapidly 1970’s. Actually, the “DFMA” is a trademark of their company. They created and blown up the DFMA concept which is used in developing the products of their company --- DFMA software system. Currently these programs are used to help the design in almost all the industrial fields including circuit boards [2], with manual assembly, with robotic assembly, and with machining. They further do a lot of work examining the economic justification of each design

DFMA is a set of guidelines developed to ensure that a product is designed so that it can be easily and efficiently manufactured and assembled with a minimum of effort, time, and cost.

The heart of any design for manufacturing system is a group of design principles or guidelines that are structured to help the designer reduce the cost and difficulty of manufacturing an item. The following is a listing of these rules

Reduce the total number of parts:

The reduction of the amount of parts in a product is probably the best opportunity for lowering manufacturing costs and the time. Less parts implies less purchases, inventory, handling, processing time, development time, equipment, engineering time, assembly difficulty, service inspection, testing, etc. In general, it reduces the level of intensity of all activities related to the product during its entire life. Develop a modular design:

The usage of modules in product design simplifies manufacturing activities Such as inspection, testing, assemblage purchasing, redesign, maintenance, service, and so on. One particular reason is the simple fact modules add versatility to product update in the redesign process, help run tests before the last assembly is put with each other and allow use of standard components to reduce product