Question

What are the differences and similarities between Lean Design and DFM, DFA, and DFMA?

Answer 1

Lean design is a concept which talks about the designing phase of a system like the complex process or the products in a system to reduce the waste amount and maximise the value anyhow. The other standards or objectives for this lean design are reducing the time to achieve the solution and improving the final quality of the final product.

Whereas, the DFMA stands for Design for Manufacturing and Assembly is considered to be an important part of the lean design system. The similarity between the two is that they both identit, quantiy and eliminate the waste or the inefficient parts of a process or a product in the design. The difference between the two could be that DFMA especially focuses on the Manufacturing and the Assembly parts to remove the waste whereas the lean design focuses on the whole system to help the supplier negotiations and the effectivity of the working of the system.

DFA stands for Design for Assemble and DFM stands for Design for Manufacturing. DFA focuses on the parts that would ease the assembly of the product, minimise the cost focusing on the number of parts which makes the task easier. On the other hand, DFM focuses on the manufacturing part where this process becomes easier after the assembly process. Optimision of the manufacturing process is focused.

While DFA focuses on reducing the cost of the assembly operations, DFM reduces the overall part production cost. On the other hand, both DFM and DFA works to reduce the waste material, overhead and the labour cost and shorten the product development cycle time for effectivity and efficiency.