Topic

Process choice

There is usually more than one way to make a part, and the cheapest route changes with volume, geometry and material. These articles compare routes on the things that actually move the price rather than on capability lists. 11 articles.

What this topic covers

  • Process comparison - Machining against moulding, milling against EDM, welding against mechanical fastening - compared on the variables that actually move cost.
  • Volume crossover - Why the cheapest route changes with quantity, and how to find the point where it flips for a specific part.
  • Route selection - Choosing a process from the feature rather than from habit, including when a part should be split across two operations.
  • Downstream effects - How the process choice fixes the tolerance class, the finish options and the inspection plan before a drawing is released.
Articles

All Process choice articles

Process choice

Machining Thin-Walled Parts Without Them Moving

Thin walls deflect under the cutter, spring back after clamping and move again after heat treatment. Where the error comes from and how to design around it.

2026-09-19·4 min read

None of these comparisons produce a universal answer, because the answer moves with quantity and geometry. What they do produce is a shortlist, which is usually enough to price two routes and let the arithmetic decide.

Not sure which process fits?

Describe the part and what it has to do. We will recommend a route, state the reason, and price it - including when the answer is not one of our own processes.

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