Dfma

What is DFMA?

DFMA is an abbreviation for "Design for Manufacturing and Assembly" or "Design for Manufacturability and Assembly. It a system comprised of various principles that, when used properly, will improve the ability for a design to be easily manufactured and assembled. It is most beneficial to consider these principles during the design phase of new product development. This system can be divided into three major sections. The first is the raw material. Choosing the right material is the foundation of a good design. Second is the machines and processes used to work the raw material. The right process is essential for creating finished parts that will meet your design requirements. Third is the assembly of the product. It is during the assembly of the finished product that provides the greatest opportunity to apply DFMA principles. The proper use of DFMA principles will allow one to design a high quality product.

DFMA Raw materials

Choosing the best raw material for the design is the first step in using DFMA to design a world class product. Three factors that need to be considered:-

1) Material must have the correct mechanical and chemical properties to meet the design criteria.

2) When possible choose a standard material that is readily available. Using special materials may increase purchase price and lengthen deliveries.

3) Use near net parts whenever possible. The raw material's profile should be as close to finished parts as possible to reduce processing.

DFMA Machines and processes

Choosing the appropriate machine and processes can drastically reduce the time and further increase the quality of the parts. When determining the best machine for the job, there are many things to consider. First and foremost is the material being processed. Some materials may require coolant and others may require special fixturing or tooling. Second is to apply as liberal tolerances as the design will allow. It typically takes longer and is more costly to hold...