Design for Manufacturing (DFM) and design for assembly (DFA) are the integration of product design and process planning into one common activity. The goal is to design a product that is easily and economically manufactured. The importance of designing for manufacturing is underlined by the fact that about 70% of manufacturing costs of a product (cost of materials, processing, and assembly) are determined by design decisions, with production decisions (such as process planning or machine tool selection) responsible for only 20%.
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.
1. Reduce the total number of parts
2. Develop a modular design
3. Use of standard components
4. Design parts to be multi-functional
5. Design parts for multi-use
6. Design for ease of fabrication
7. Avoid separate fasteners
8. Minimize assembly directions
9. Maximize compliance
10. Minimize handling
Please download attached paper and read in full details and hope it is helpful to your Design for Manufacturing and product development!
