A useful DFM review identifies the design choices that affect tooling, casting stability, machining, finishing and inspection before production starts.
Drawing and DFM review
The DFM review compares the controlled part requirement with the planned casting and secondary-operation route. It should not be only a price exercise.
Each stage produces a decision or document that the next stage depends on. This keeps engineering, purchasing and production aligned.
Confirm the revision, 3D model, 2D drawing, material, quantity and target delivery.
Identify features that affect tooling, filling, cooling, ejection and machining.
Return a clear list of assumptions, risks and information needed for quotation.
Freeze the mold concept, process route, sample plan and inspection scope.
Send the most complete controlled file set available. A 3D model supports geometry review, while a 2D drawing defines dimensions, tolerances, finish and inspection requirements.
The DFM response should make the next decision easier. It should state what is feasible, what needs to change, what remains uncertain and what information is required for an accurate quotation.
These answers define the normal project path and the information needed for a useful quotation.
Provide the controlled 2D/3D drawing, material requirement, annual quantity, finishing requirement, critical dimensions, target market and delivery date.
An initial feasibility discussion is possible, but the quotation and tooling scope should be based on a controlled drawing revision.
Tolerance and inspection requirements are defined from the drawing, critical features, process capability and agreed datum strategy.
Ownership, storage, maintenance and transfer terms are defined in the quotation or supply agreement before the tooling project starts.
Use the internal links to connect the material, process, industry, product and RFQ pages around one project decision.
Include the material, annual quantity, finishing requirement, target market and delivery date. The review can start from STEP, IGS, DWG, DXF, PDF or ZIP files.
