Engineering
Design & DFM
Design decisions become expensive when geometry, tolerance, material and production reality are treated separately.
What this topic covers
What good design-for-manufacture work should resolve.
DFM is not simply a request to make a part easier to machine or fabricate. It is the discipline of protecting function while removing avoidable manufacturing risk.
- Identify features, tolerances and interfaces that drive cost or process risk.
- Challenge assumptions that create unnecessary operations, inspection or supplier dependence.
- Keep functional intent, assembly conditions and downstream quality controls visible during design change.
Use DFM when the drawing is technically valid but the production route is fragile, expensive or difficult to control.
Good DFM resolves the tradeoff between function, process capability, inspection and cost before production is asked to absorb it.
When the issue needs execution, bring the operating condition, evidence and constraint.