Engineering Resources — Page 4

August 4, 2026, 3:36:00 PM EDT

Tolerance Selection: How Tight Is Tight Enough (and What It Costs You)

Every dimension on a drawing carries a tolerance, and every tolerance carries a cost. The engineering skill is not holding the tightest number a shop can achieve — it is knowing which band ...

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August 4, 2026, 3:36:00 PM EDT

Finding Machining Suppliers on SAM.gov: A Buyer's Guide to Small-Business Sourcing

If you buy machined parts for government programs — or for primes with small-business subcontracting goals — SAM.gov is the sourcing database you already pay for and probably underuse. ...

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August 4, 2026, 3:36:00 PM EDT

ISO 9001 vs. AS9100: What They Mean When You're Choosing a Machine Shop

Quality-system acronyms show up on every machine shop's website, but buyers are often left guessing what they actually guarantee. ISO 9001 and AS9100 are the two you will encounter most ...

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August 4, 2026, 3:36:00 PM EDT

Buying Capital Tooling: A Checklist Before You Cut the PO

Capital tooling purchases fail quietly. The PO gets cut, the design looks fine, the build ships — and then tryout drags for months because nobody defined what "done" meant, or the fixture ...

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August 4, 2026, 3:36:00 PM EDT

Aluminum vs. Titanium vs. Steel: Choosing the Right Metal for Machined Parts

Material selection sets the ceiling on everything downstream: machining cost, lead time, weight, corrosion life, and how the part behaves in service. For most machined components, the real ...

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August 4, 2026, 3:36:00 PM EDT

What ITAR Registration Actually Means When You Source Machined Parts

If you buy machined parts for defense programs, you have probably seen three different phrases on supplier websites: "ITAR registered," "ITAR compliant," and "ITAR certified." They sound ...

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